WO2013149458A1 - Ups power source based on phase-shifting auto-transformer and dual 6-pulse rectifiers - Google Patents

Ups power source based on phase-shifting auto-transformer and dual 6-pulse rectifiers Download PDF

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Publication number
WO2013149458A1
WO2013149458A1 PCT/CN2012/082208 CN2012082208W WO2013149458A1 WO 2013149458 A1 WO2013149458 A1 WO 2013149458A1 CN 2012082208 W CN2012082208 W CN 2012082208W WO 2013149458 A1 WO2013149458 A1 WO 2013149458A1
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Prior art keywords
phase
group
output
input
pulse
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PCT/CN2012/082208
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French (fr)
Chinese (zh)
Inventor
徐海波
张胜发
汪家荣
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广东易事特电源股份有限公司
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Publication of WO2013149458A1 publication Critical patent/WO2013149458A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/443—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/45—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M5/4505—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only having a rectifier with controlled elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/493—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel

Definitions

  • UPS power supply based on auto-transformer phase shifting transformer and double six-pulse rectification
  • the invention relates to the field of power supply technology, and in particular to a UPS power supply based on an auto-transformer phase shifting transformer and a double six-pulse rectification.
  • the global industrialized information economy is increasingly demanding high-quality high-power UPS power supply.
  • the power frequency UPS power supply is Widely used in various industry sectors.
  • a fully isolated 12-pulse auto-coupled phase-shifting transformer T1 or a half-power 12-pulse auto-coupled phase-shifting transformer T1 balanced reactance is generally used.
  • 12-pulse rectification technology to suppress the 5th and 7th harmonics generated by 6-pulse rectification.
  • This method has the problem that the 12-pulse autotransformer phase-shifting transformer T1 is bulky, heavy, and costly; The main power loop structure is not convenient for the integration of more powerful UPS power units.
  • the object of the present invention is to solve the deficiencies of the prior art and provide a UPS power supply topology structure with compact structure, strong anti-interference ability, small volume, low cost, and effective reduction of side power harmonic interference.
  • the UPS power supply based on the auto-transformer phase shifting transformer and the double six-pulse rectification includes a three-phase AC input terminal of the power source, a three-phase AC output terminal of the power source, a 12-pulse autotransformer phase shifting transformer Tl, and an output device of two parallel connections.
  • 12-pulse auto-coupled phase shifting transformer T1 three-phase AC input terminal is connected with power three-phase AC input terminal, 12-pulse auto-coupled phase shifting transformer T1 is provided with two groups
  • the three-phase AC output end is an advanced group three-phase AC output end and a hysteresis group three-phase AC output end, wherein one output device includes a pre-group 6-pulse rectifier, an advanced group three-phase inverter, and an advanced assembly.
  • Frequency isolation transformer ⁇ 2 and advanced group main circuit static switching device another output device includes lag group 6 pulse rectifier, lag group three-phase inverter, lag group power frequency isolation transformer ⁇ 3 and hysteresis main circuit static switch
  • the front-end three-phase AC output terminal is connected with the three-phase AC input terminal of the pre-group 6-pulse rectifier, and the hysteresis group three-phase AC output terminal and the hysteresis group 6-pulse
  • the three-phase AC input terminal of the flow device is connected; the three-phase AC output terminal of the static switch device of the main group and the three-phase AC output terminal of the static switch device of the main circuit of the lag group are respectively connected with the three-phase AC output terminal of the power supply, and the bypass is static.
  • Three-phase AC output of the switching device Sunrise set out, the output of the lead group is connected to the DC input of the three-phase inverter of the lead group, and the output of the hysteresis group is connected to the DC input of the three-phase inverter of the hysteresis group; the input end of the energy storage device Connected to the DC output of the charger, the three-phase AC terminal of the charger is connected to the three-phase AC input of the power supply, and the three-phase AC input of the bypass static switch device is also connected to the three-phase AC input of the power supply.
  • the mutual phase difference of the three-phase alternating current output from the 12-pulse autotransformer phase shifting transformer T1 to the parallel two-way output device is 30 degrees.
  • the energy storage device comprises a battery pack and two directional coupling units for current directional flow, two output ends of one directional coupling unit and a positive electrode and a lag group three of the input end of the lead three-phase inverter respectively
  • the positive terminal of the input end of the phase inverter is connected, and the input end of the directional coupling unit is connected to the positive pole of the battery pack;
  • the two output ends of the other directional coupling unit respectively have the negative pole and hysteresis of the input end of the lead three-phase inverter respectively
  • the negative terminal of the input end of the group three-phase inverter is connected, and the input end of the directional coupling unit is connected with the negative pole of the battery pack;
  • the DC output end of the charger is connected with the battery pack;
  • the output voltage of the pre-group 6 pulse wave group rectifier The output voltages of the 6-pulse group rectifiers of the hysteresis group and the hysteresis group are both higher than the voltage of
  • the output voltage of the 6-pulse group rectifier of the advanced group and the output voltage of the 6-pulse group rectifier of the hysteresis group are slightly higher than the voltage of the battery pack, and are all higher than 0.01 ⁇ 1V.
  • the directional coupling unit includes two diodes, and the positive poles of the two diodes of the one directional coupling unit are respectively connected to the DC input of the positive input terminal of the DC input terminal of the lead three-phase inverter and the DC input of the lag group three-phase inverter
  • the anode of the terminal is connected, and the cathodes of the two diodes of the one directional coupling unit are connected to the anode of the battery pack; the cathodes of the two diodes of the other directional coupling unit are respectively connected to the DC input of the lead group three-phase inverter
  • the negative pole of the terminal is connected to the negative pole of the DC input of the three-phase inverter of the hysteresis group, and the anodes of the two diodes of the other directional coupling unit are respectively connected to the cathode of the battery pack.
  • the directional coupling unit further includes a switch group, and the switch group includes two switch devices, and the two switch devices are respectively connected in parallel with two diodes of the directional coupling unit.
  • the energy storage device further includes contactors JK1 and JK2, and two diodes D1 and D2 respectively connected to the positive and negative terminals of the DC input end of the three-phase inverter of the advanced group are advanced group diodes, respectively, and the hysteresis group three
  • the two diodes D3 and D4 connected to the positive and negative terminals of the DC input of the phase inverter are hysteresis group diodes; the two diodes D1 and D2 of the lead group diode are respectively connected to the main contact of the contactor JK1, and the two of the hysteresis group diodes.
  • Diodes D3, D4 are respectively connected to the main contacts of contactor JK2.
  • the 12-pulse autotransformer phase shifting transformer T1 is a 12-pulse 30-degree autotransformer phase shifting transformer, and the lead group three-phase AC output terminals are Al, Bl, and C1; The terminals are A2, B2, C2; the advanced group of controllable three-phase rectifier circuit of the 6-pulse group rectifier of the advanced group consists of the inductor group L1 and one-way ⁇
  • Silicon germanium S JK ⁇ , SCR3 SCR5 SCR4 SCR6 SCR2 and 3 ⁇ 4 valley (J ⁇ composition, inductor group L1 consists of inductor L11, inductor L12 and inductor L13, one end of inductor L11 is connected to A1 terminal, the other end of inductor L11 Connected to the anode of the unidirectional thyristor element SCR1 and the cathode of the SCR4 respectively; one end of the inductor L12 is connected to the B1 terminal, and the other end of the inductor L12 is respectively connected to the anode of the unidirectional thyristor element SCR3 and the cathode of the SCR6; One end of the inductor is connected to the C1 terminal, and the other end of the inductor L13 is respectively connected to the anode of the unidirectional thyristor element SCR5 and the cathode of the SCR2; the anode of the capacitor C1 is respectively connected to
  • the emitters of the bipolar transistors IGBT4 IGBT6 and IGBT2 are respectively connected to the negative poles of the DC input terminals of the lead group three-phase inverters, and the DC outputs of the DC input terminals of the lead three-phase inverters and the DC output of the lead group 6-pulse group rectifiers of the advanced group
  • the negative connection of the terminal; the emitter of the insulated gate bipolar transistor IGBT1 IGBT3 and GBT5 are respectively connected to the collectors of the insulated gate bipolar transistor IGBT4 IGBT6 and IGBT2; wherein the emitters of the insulated gate bipolar transistors IGBT1 IGBT3 and GBT5 are respectively It is connected with three three-phase AC output terminals of the three-phase inverter of the advanced group; the three-phase AC input terminal of the advanced power frequency isolation transformer T2 is connected with the three-phase AC output terminal of the three-phase inverter of the advanced group;
  • the frequency isolation transformer T2 adopts the D/Y11
  • the capacitor group C3, the three-phase AC output terminal of the advanced group power frequency isolation transformer T2 is A3 B3 C3; one end of the capacitor C31 is respectively connected with one end of the capacitor C33 and the three-phase AC output terminal A3, and the other end of the capacitor C31 is respectively One end of the capacitor C32 is connected to the three-phase AC output terminal B3, and the other end of the capacitor C32 is respectively connected to the other end of the capacitor C33 and the three-phase AC output terminal C3; the advanced group power frequency isolation transformer T2 and the capacitor group C3 form a lead group LC low Passing filter, the lead group main circuit static switching device is composed of a bidirectional thyristor element SCR7 SCR8 and SCR9, and one end of the bidirectional thyristor element SCR7 SCR8 and SCR9 respectively communicates with the three-phase alternating current of the advanced group power frequency isolation transformer T2
  • the output terminal A3 B3 C3 is connected, the other ends of the triac SCR7 SCR8 and SCR
  • the negative pole of the DC input of the three-phase inverter of the hysteresis group is connected to the negative pole of the DC output of the hysteresis group 6 pulse wave group rectifier;
  • the emitters of the insulated gate bipolar transistors IGBT1 'JGBT3' and GBT5' are respectively insulated with the insulated gate bipolar type
  • the collector of the IGBT 4' JGBT6 'and the IGBT 2' is connected; wherein the emitters of the insulated gate bipolar transistor IGBT1 ', IGBT3 'and the GBT5' are also respectively connected to the three-phase AC output of the lag group three-phase inverter Connection;
  • lag group power frequency isolation transformer T3 three-phase AC input terminal is connected with the three-phase AC output terminal of the lag group three-phase inverter;
  • the lag group power frequency isolation transformer T3 adopts D/Y11 connection method, hysteresis group power frequency isolation
  • the ends are capacitors A4, B5, and C6; one end of the capacitor C41 is connected to one end of the capacitor C43 and the three-phase AC output terminal A4, and the other end of the capacitor C41 is respectively connected to one end of the capacitor C42 and the three-phase AC output terminal B4, and the capacitor C42 The other end of the capacitor is connected to the other end of the capacitor C43 and the three-phase AC output terminal C4; the hysteresis group power frequency isolation transformer T3 and the capacitor group C4 form a hysteresis group LC low-pass filter, and the hysteresis group main path static switching device is bidirectional
  • the thyristor components SCR10, SCR11 and SCR12 are composed, and one ends of the triac SCR10, SCR11 and SCR12 are respectively connected with the three-phase AC output terminals A4, B4 and C4 of the hysteresis group power frequency isolation transformer T3, and the bidirectional thyristor components are respectively connected.
  • the bypass static switching device is composed of the triac SCR13, SCR14 and SCR15, and one end of the triac SCR13, SCR14 and SCR15 They are respectively connected to the three-phase AC input terminal of the power supply, and the other ends of the two-way thyristor components SCR13, SCR14 and SCR15 are respectively connected with the three-phase AC power supply. Terminal.
  • ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇
  • the device FUSE1 hU ⁇ Z ⁇ into, fuse one end of FUSE1 FUSE2 and FUSE3 connected with the three-phase AC input of the 12-pulse autotransformer phase-shifting transformer T1, fuse The other end of FUSE1 FUSE2 and FUSE3 is connected to the output of the three-phase input switching device CB1, and the input terminal of the three-phase input switching device CB1 is connected to the three-phase AC input terminal of the power supply.
  • one ends of the fuses FUSE1 FUSE2 and FUSE3 are provided with Hall current sensors HP1 HP2 and HP3, and one ends of the fuses FUSE1 FUSE2 and FUSE3 are self-coupled by the Hall current sensors HP1 HP2 and HP3 and 12 pulses, respectively.
  • the three-phase AC input of the phase transformer T1 is connected.
  • the UPS power supply based on the auto-transformer phase shifting transformer and the double six-pulse rectification further includes a synchronous control unit for controlling the output of the inverter, and the input end of the synchronous control unit is connected with the three-phase AC input end of the power supply, and is synchronized.
  • the control unit is provided with two sets of outputs, one set of outputs is connected with the control end of the lead group three-phase inverter, and the other set of outputs is connected with the control end of the hysteresis group three-phase inverter.
  • a Hall current sensor HP5 is provided between the anode of the DC output end of the 6-pulse group rectifier of the advanced group and the anode of the DC input of the lead group three-phase inverter; the anode of the DC output end of the 6-pulse group rectifier of the hysteresis group
  • a Hall current sensor HP6 is provided between the positive pole of the DC input terminal of the three-phase inverter of the lag group; the AC output end of the lead three-phase inverter is connected with the three-phase AC input terminal of the advanced group power frequency isolation transformer T2 Hall current sensors HP7 HP8 and HP9 are provided, and the Hall current sensors HP10 HP11 and HP12 are provided between the AC output of the three-phase inverter of the hysteresis group and the three-phase AC input of the power line isolation transformer T3.
  • the three-phase AC output terminal of the power supply is provided with a circuit breaker CB3, one end of the circuit breaker CB3 and the output end of the static switch device of the lead group main circuit, the output end of the main circuit static switch device of the hysteresis group and the output end of the bypass static switch device.
  • the other end of the circuit breaker CB3 is connected with the three-phase AC output end of the power supply; the input end of the bypass static switching device and the three-phase AC input end of the power supply
  • breaker CB2 CB4 three-phase power circuit breaker is provided between the AC power input terminal and the output terminal of the three-phase AC
  • UPS power supply based on auto-transformer phase shifting transformer and double six-pulse rectification, including power supply three-phase AC input terminal, power supply three-phase AC output terminal, 12-pulse auto-coupled phase shifting transformer Tl, two-way Parallel connection output device, energy storage device, bypass static switching device and charger; 12-pulse auto-coupled phase-shifting transformer T1 three-phase AC input terminal is connected with power supply three-phase AC input terminal, 12-pulse auto-coupled phase shifting
  • the transformer T1 is provided with two sets of three-phase AC output terminals, which are an advanced group three-phase AC output terminal and a hysteresis group three-phase AC output terminal, wherein one of the output devices includes a pre-group 6-pulse rectifier connected in series, and a three-phase inverse of the advanced group.
  • Transformer advanced group power frequency isolation transformer ⁇ 2 and advanced group main circuit static switching device
  • another output device includes lag group 6 pulse rectifier, lag group three-phase inverter
  • the three-phase AC input terminal of the rectifier is connected, and the three-phase AC output end of the hysteresis group is connected with the three-phase AC input end of the 6-pulse rectifier of the hysteresis group; the three-phase AC output end of the static switch device of the main group and the main circuit of the hysteresis group are static.
  • the three-phase AC output end of the switch device is respectively connected with the three-phase AC output end of the power supply, and the three-phase AC output end of the bypass static switch device is also connected with the three-phase AC output end of the power supply;
  • the energy storage device is provided with an output of the lead group And the output of the hysteresis group, the output of the lead group is connected with the DC input end of the three-phase inverter of the lead group, and the output end of the hysteresis group is connected with the DC input end of the three-phase inverter of the hysteresis group;
  • the input end of the energy storage device and charging The DC output terminal of the charger is connected, the three-phase AC terminal of the charger is connected with the three-phase AC input terminal of the power supply, and the three-phase AC input terminal of the bypass static switch device is also connected with the three-phase AC input terminal of the power supply.
  • the invention adopts two parallel output devices, so that the use reliability of the invention is increased; at the same time, the power frequency isolation transformer is disposed behind the three-phase inverter of the two output devices to realize the parallel connection and isolation of the two symmetric three-phase electricity.
  • the output effectively reduces the rated power, volume, weight and cost of the rectifier side rectifier transformer of the power frequency UPS power supply.
  • Figure 1 is a schematic view of the structure of the present invention.
  • FIG. 2 is a schematic view showing the winding structure and connection of the 12-pulse autotransformer phase shifting transformer T1 of the present invention.
  • 3 is a main circuit diagram of a synchronous isolated output parallel three-phase inverter of a two-way output device of the present invention.
  • 4 is a schematic structural view of an energy storage device of the present invention.
  • Figure 5 is a schematic diagram of the system of the present invention.
  • the UPS power supply based on the auto-transformer phase shifting transformer and the double six-pulse rectification includes a three-phase AC input terminal of the power source, a three-phase AC output terminal of the power source, and an autotransformer phase shift of 12 pulses.
  • Transformer Tl two parallel output devices, energy storage device, bypass static switch device and charger; 12-pulse auto-coupled phase-shift transformer T1 three-phase AC input terminal connected to the power supply three-phase AC input terminal, 12-pulse
  • the wave autotransformer phase shifting transformer T1 is provided with two sets of three-phase AC output terminals, which are respectively a front group three-phase AC output end and a hysteresis group three-phase AC output end, wherein one of the output devices includes a pre-group 6-pulse rectifier which is sequentially connected, Leading group three-phase inverter, advanced group power frequency isolation transformer ⁇ 2 and advanced group main circuit static switching device;
  • the other output device includes lag group 6 pulse rectifier, lag group three-phase inverter, and lag group Frequency isolation transformer ⁇ 3 and hysteresis group main circuit static switching device; said pre-group three-phase AC output terminal is connected with three-phase AC input terminal of lead group 6 pulse wave rectifier, lag group three-phase The AC output
  • the output of the hysteresis group is connected to the DC input end of the three-phase inverter of the hysteresis group; the input end of the energy storage device is connected to the DC output end of the charger, and the three-phase AC end of the charger is connected to the three-phase AC input end of the power supply.
  • the three-phase AC input terminal of the bypass static switch device is also connected to the three-phase AC input terminal of the power supply.
  • the mutual phase difference of the three-phase alternating current output from the 12-pulse autotransformer phase shifting transformer T1 to the parallel two-way output device is 30 degrees.
  • the input end of the 12-pulse autotransformer phase shifting transformer T1 is connected to the mains through the AC input terminal of the power supply phase, and the mains is stepped down by the 12-pulse autotransformer phase shifting transformer T1 and connected in two ways through two parallel circuits.
  • the output device is externally outputted.
  • the advanced group power frequency isolation transformer and the hysteresis group power frequency isolation transformer are respectively disposed in the above two output devices, respectively, and the circuits are separately isolated, so the two power frequency isolation transformers are The power is small, it can be miniaturized and lightened, which is conducive to integration.
  • the bypass static switch In the case of normal power supply, the bypass static switch is in the off state, and the 12-pulse autotransformer phase shifting transformer T1 will input the symmetric three-phase AC.
  • the phase shift of the power supply is a symmetrical three-phase AC power supply with two phases corresponding to each other with a difference of 30 degrees; two sets of symmetrical three-phase AC power supplies are respectively rectified by a pre-group 6-pulse rectifier and a hysteresis group 6-pulse rectifier, and two independent DC power supplies are output.
  • the three-phase inverters of the latter stage are respectively supplied; at this time, the commercial three-phase power source charges the energy storage device through the charger; the advanced group three-phase inverter
  • the three-phase inverters of the lag group are opposite each other, respectively output symmetric three-phase electric to the advanced group power frequency isolation transformer, the hysteresis group power frequency isolation transformer, the advanced group, the lag group power frequency isolation transformer and the advanced group, the hysteresis group main circuit static switch
  • the device realizes parallel output of two sets of symmetric three-phase electricity.
  • the invention avoids the use of a bulky balanced reactor, and adopts two independent inverter channels with the same main circuit respectively.
  • the inverter channel is composed of a three-phase inverter, a power frequency isolation transformer and a main static switch device, so that the double 6-pulse rectification cannot form a circulating current through parallel connection on the DC side, so that the auto-coupled phase-shifting transformer accurately realizes 12-pulse rectification, which greatly reduces the input current harmonics.
  • the output of the independent inverter channels with the same two main circuits is separated by the advanced group and the hysteresis group power frequency isolation transformer respectively, and the parallel output is realized by the two-way advanced group and the hysteresis group main static switching device, thus saving 6
  • the balance of the pulse wave rectified output power enhances the reliability of the system.
  • the two independent inverter channels work in the same way, output three-phase power of the same phase frequency, phase and amplitude; and synchronize the output three-phase power with the input grid voltage.
  • the external power supply of the invention adopts a redundant design, has high stability and reliability, and can be continuously supplied to the outside.
  • two output devices are externally powered.
  • the other output device can still supply external power; when both output devices fail, the two main paths ⁇ , X ⁇ , - ⁇ - ⁇ ⁇
  • the invention adopts the cooperation mode of the 12-pulse auto-coupled phase shifting transformer T1 and the two-way output device, and realizes 12-pulse rectification under the condition of greatly reducing the capacity of the conventional 12-pulse autotransformer phase shifting transformer, effectively reducing the AC — DC-rated network-side input current harmonics, effectively suppressing the 5th harmonic.
  • the energy storage device comprises a battery pack and two directional coupling units for current directional flow, two output ends of one directional coupling unit and a positive electrode and a lag group three of the input end of the lead three-phase inverter respectively
  • the positive terminal of the input end of the phase inverter is connected, and the input end of the directional coupling unit is connected to the positive pole of the battery pack;
  • the two output ends of the other directional coupling unit respectively have the negative pole and hysteresis of the input end of the lead three-phase inverter respectively
  • the negative terminal of the input end of the group three-phase inverter is connected, and the input end of the directional coupling unit is connected with the negative pole of the battery pack;
  • the DC output end of the charger is connected with the battery pack;
  • the output voltage of the pre-group 6 pulse wave group rectifier The output voltages of the 6-pulse group rectifiers of the hysteresis group and the hysteresis group are both higher than the voltage of
  • the output voltage of the 6-pulse group rectifier of the advanced group and the output voltage of the 6-pulse group rectifier of the hysteresis group are slightly higher than the voltage of the battery pack, and are all higher than 0.01 ⁇ 1V.
  • the invention adopts two directional coupling units and a battery pack to realize a double DC loop structure; two DC loops share a group of battery packs, and the structure is simple and the cost is low.
  • the output voltage of the rectifier of the two-way output device is higher than the voltage of the battery pack, that is, the input voltage of the two-way three-phase inverter is higher than that of the battery pack.
  • Voltage since the battery pack is connected to the three-phase inverter through the directional coupling unit, the battery pack does not supply power to the three-phase inverter, and the directional coupling unit blocks current from flowing to the battery pack.
  • the rectifier cannot supply power to the three-phase inverter.
  • the voltage of the battery pack is higher than the input voltage of the three-phase inverter, and the battery pack directly supplies power to the three-phase inverter; Continuous power supply.
  • the directional coupling unit includes two diodes, and the positive poles of the two diodes of the one directional coupling unit are respectively connected to the DC input of the positive input terminal of the DC input terminal of the lead three-phase inverter and the DC input of the lag group three-phase inverter
  • the anode of the terminal is connected, and the cathodes of the two diodes of the one directional coupling unit are connected to the anode of the battery pack; the cathodes of the two diodes of the other directional coupling unit are respectively connected to the DC input of the lead group three-phase inverter
  • the negative pole of the terminal is connected to the negative pole of the DC input of the three-phase inverter of the hysteresis group, and the anodes of the two diodes of the other directional coupling unit are respectively connected to the cathode of the battery pack.
  • the directional flow of current through the diode is simple in structure and low in cost.
  • the directional coupling unit further includes a switch group, and the switch group includes two switch devices, and the two switch devices are respectively connected in parallel with two diodes of the directional coupling unit.
  • the energy storage device further includes contactors JK1 and JK2, and two diodes D1 and D2 respectively connected to the positive and negative terminals of the DC input end of the three-phase inverter of the advanced group are advanced group diodes, respectively, and the hysteresis group three
  • the two diodes D3 and D4 connected to the positive and negative terminals of the DC input of the phase inverter are hysteresis group diodes; the two diodes D1 and D2 of the lead group diode are respectively connected to the main contact of the contactor JK1, and the two of the hysteresis group diodes.
  • Diodes D3, D4 are respectively connected to the main contacts of contactor JK2.
  • Dl and D2 form a unidirectional channel for supplying power to the DC bus of the leading group.
  • the main contacts of a contactor JK1 are respectively connected in parallel with D1 and D2.
  • D3 and D4 constitute a unidirectional channel for supplying power to the DC bus of the lag group.
  • the main contacts of a contactor JK2 are also connected in parallel on D3 and D4, respectively.
  • JK1 and JK2 are disconnected. Since the battery pack voltage is slightly lower than the DC bus voltage of the two rectified outputs, the battery circuit will not affect the two sets of DC bus, so it does not affect the double six-pulse Bridge rectification achieves 12-pulse rectification.
  • the control circuit controls the contactors JK1 and JK2 to close, eliminating the conduction losses of the diodes D1, D2, D3, and D4, and improving the efficiency of the UPS system when the battery is discharged.
  • the 12-pulse autotransformer phase shifting transformer T1 is a 12-pulse 30-degree autotransformer phase shifting transformer, and the lead group three-phase AC output terminals are Al, Bl, and C1;
  • the terminals are A2, B2, C2;
  • the advanced group controllable three-phase rectifier circuit of the pre-group 6-pulse group rectifier consists of the inductor group L1 and the unidirectional thyristor components SCR1, SCR3, SCR5, SCR4, SCR6, SCR2 and capacitor CI.
  • the inductor group L1 is composed of an inductor L11, an inductor L12 and an inductor L13.
  • One end of the inductor L11 is connected to the A1 terminal, and the other end of the inductor L11 is respectively connected to the anode of the unidirectional thyristor element SCR1 and the cathode of the SCR4; One end is connected to the B1 end, and the other end of the inductor L12 is respectively connected to the anode of the unidirectional thyristor element SCR3 and the cathode of the SCR6; one end of the inductor L13 is connected to the C1 end, and the other end of the inductor L13 is respectively connected to the unidirectional thyristor element.
  • the positive pole of the SCR5 and the negative pole of the SCR2 are connected; the positive pole of the capacitor C1 is respectively connected to the negative poles of the unidirectional thyristor elements SCR1, SCR3, SCR5 and to the positive pole of the DC output end of the pulse group rectifier of the advanced group; the negative poles of the capacitor C1 are respectively versus Connecting to the negative pole of the thyristor elements SCR2, SCR4, SCR6 and the negative pole of the DC output end of the pre-group 6 pulse wave group rectifier; the lead group three-phase bridge inverter circuit of the lead group three-phase inverter is insulated by the grid Bipolar transistors IGBT1, IGBT3, IGBT5, IGBT4, IGBT6 and IGBT2, wherein the collectors of the insulated mountain bipolar transistors IGBT1, IGBT3 and GBT5 are respectively connected to the positive poles of the DC input terminals of the lead three-phase inverters, The positive pole of the DC input terminal of the lead group three-
  • the negative terminal of the DC output of the current collector is connected; the emitters of the insulated gate bipolar transistors IGBT1, IGBT3 and GBT5 are respectively connected to the collectors of the insulated gate bipolar transistors IGBT4, IGBT6 and IGBT2; wherein the insulated gate bipolar transistor IGBT1
  • the emitters of IGBT3 and GBT5 are also respectively connected with the three three-phase AC output terminals of the lead group three-phase inverter; the three-phase AC input terminal of the advanced group power frequency isolation transformer T2 and the three-phase inverter of the lead group three-phase inverter
  • the AC output terminal is connected; the advanced group power frequency isolation transformer T2 adopts the D/Y11 connection method, and the capacitor group C3 consisting of capacitors C31, C32 and C33 is provided between the advanced group power frequency isolation transformer T2 and the advanced group main circuit static switching device.
  • the three-phase AC output terminals of the advanced power frequency isolation transformer T2 are A3, B3, C3; one end of the capacitor C31 is respectively connected with one end of the capacitor C33 and the three-phase AC output terminal A3, and the other end of the capacitor C31 is respectively connected with the capacitor C32.
  • the lead group main circuit static switching device is composed of a bidirectional thyristor element SCR7, SCR8 and SCR9, and one ends of the triac SCR7, SCR8 and SCR9 are respectively isolated from the advanced group power frequency
  • the three-phase AC output terminals A3, B3 and C3 of the transformer T2 are connected, and the other ends of the triac SCR7, SCR8 and SCR9 are respectively connected with the three-phase AC output terminal of the power supply;
  • the hysteresis group of the hysteresis group 6 pulse group rectifier is controllable
  • the three-phase rectifier circuit is composed of an inductor group L2 and unidirectional thyristor elements SCR1 ',
  • the inductor L21 has one end connected to the A2 end, and the other end of the inductor L21 is respectively connected to the anode of the unidirectional thyristor element SCR1 ' and the cathode of the SCR 4 ′; one end of the inductor L22 is connected to the B2 end, and the other end of the inductor L22 is respectively Connected to the anode of the unidirectional thyristor element SCR3' and the cathode of the SCR6'; one end of the inductor L23 is connected to the C2 terminal, and the other end of the inductor L23 is respectively connected to the anode of the unidirectional thyristor element SCR5' and the cathode of the SCR2'; Capacitor C2 The poles are respectively connected to the negative poles of the unidirectional thyristor elements SCR1 ', SCR3', SCR5' and to the anode of the DC output of the hyster
  • the IGBTi, Kil3' and GBT5 twin crystals are not connected to the collectors of Kil3T4, ⁇ GBT6' and IGBT2'; the emitters of the insulated gate bipolar transistors IGBT1', IGBT3' and GBT5' are also inversely opposite to the hysteresis group
  • the three three-phase AC output terminals of the transformer are connected; the three-phase AC input terminal of the hysteresis group power frequency isolation transformer T3 is connected with the three-phase AC output terminal of the three-phase inverter of the hysteresis group; the hysteresis group power frequency isolation transformer T3 adopts D /Y11 connection method, the hysteresis group power frequency isolation transformer T3 and the hysteresis group main circuit static switching device are provided with a capacitor group C4 composed of capacitors C41, C42, C43, and a three-phase AC output terminal of the hysteresis group power frequency isolation transformer
  • the other ends of the thyristor components SCR10, SCR11 and SCR12 are respectively connected to the three-phase AC output terminal of the power supply;
  • the bypass static switching device is composed of the triac SCR13, SCR14 and SCR15, and the triac SCR13, SCR14 One end of the SCR 15 and the three-phase AC input end of the power supply are respectively connected, and the other ends of the two-way thyristor components SCR13, SCR14 and SCR15 are respectively connected with the three-phase AC output end of the power supply.
  • the UPS power supply based on the auto-transformer phase shifting transformer and the double six-pulse rectification further includes a synchronous control unit for controlling the output of the inverter, and the input end of the synchronous control unit is connected with the three-phase AC input end of the power supply, and is synchronized.
  • the control unit is provided with two sets of outputs, one set of outputs is connected with the control end of the lead group three-phase inverter, and the other set of outputs is connected with the control end of the hysteresis group three-phase inverter.
  • a three-phase input switching device CB1 and a fuse group are disposed between the three-phase AC input terminal of the power supply and the 12-pulse autotransformer phase shifting transformer T1, and the fuse group is composed of fuses FUSE1, FUSE2 and FUSE3, and the fuse FUSE1
  • One end of FUSE2 and FUSE3 is connected to the three-phase AC input terminal of the 12-pulse autotransformer phase shifting transformer T1
  • the other end of the fuses FUSE1, FUSE2 and FUSE3 is connected to the output end of the three-phase input switching device CB1
  • the input of CB1 is connected to the three-phase AC input of the power supply.
  • Hall current sensors HP1, HP2 and HP3 are provided between one end of the fuses FUSE1, FUSE2 and FUSE3 and the three-phase AC input terminal of the 12-pulse autotransformer phase shifting transformer T1.
  • a Hall current sensor HP5 is provided between the anode of the DC output end of the 6-pulse group rectifier of the advanced group and the anode of the DC input of the lead group three-phase inverter; the anode of the DC output end of the 6-pulse group rectifier of the hysteresis group Hall current sensing is provided between the positive terminal of the DC input terminal of the three-phase inverter of the lag group Hp eyepiece work partition
  • Hall current sensors ⁇ 7, ⁇ 8 and ⁇ 9 are arranged between the input terminals, and a Hall current sensor HP10 is provided between the AC output terminal of the lag group three-phase inverter and the three-phase AC input terminal of the advanced group power frequency isolation transformer ⁇ 3.
  • the power supply three-phase AC output terminal is provided with a circuit breaker CB3, one end of the flow circuit breaker CB3 and the output end of the static switch device of the lead group main circuit, the output end of the static switch device of the main circuit of the hysteresis group and the side
  • the output end of the static switch device is connected, and the other end of the circuit breaker CB3 is connected with the three-phase AC output terminal of the power supply
  • a circuit breaker CB2 is provided between the input end of the bypass static switch device and the three-phase AC input terminal of the power supply
  • the power supply three A circuit breaker CB4 is provided between the phase AC input terminal and the power supply three-phase AC output terminal.
  • the phase difference between the two-phase three-phase power of the output of the 12-pulse autotransformer phase shifting transformer T1 is 30 degrees.
  • the three-phase power of the mains input A, B, C and the three-phase electricity (Al, Bl, CI) of the 6-pulse group rectifier entering the lead group and the lag group, (A2, B2, C2) have a phase difference of 15 degrees and a negative of 15 degrees, respectively, of which three-phase electricity (Al, Bl, CI) Leading the mains three-phase electricity (A, B, C) 15 degrees, three-phase electricity (A2, B2, CI) lagging the mains three-phase electricity (A, B, C) 15 degrees; with the advanced group,
  • the DC power supply line connected to the input end of the three-phase inverter of the lag group is divided into the lead group DC bus and the lag group DC three-phase power through the three-phase input switching device CB1, the fuses FUSE1, FUSE12, FUSE
  • the advanced group (Al, Bl, CI) three-phase AC power is rectified into DC through the advanced group controllable three-phase rectifier circuit, and the AC three-phase bridge inverter circuit becomes AC power through the advanced group power frequency isolation transformer, LC filter and
  • the advanced group main circuit static switching device outputs the pure three-phase power of the same frequency and the same frequency as the bypass input AC power.
  • the lag group (A2, B2, C2) three-phase AC power is rectified into DC through the hysteresis group controllable three-phase rectifier circuit (ie, the lag group 6-pulse group rectifier), and the lag group three-phase bridge inverter circuit (ie, the lag group)
  • the three-phase inverter becomes an alternating current, and the pure three-phase power of the same frequency and the same phase as the bypass input AC power is output through the hysteresis group power frequency isolation transformer, the LC filter and the hysteresis group main static switch device.
  • the AC power output of the two groups is controlled by the synchronous control unit (not shown in Figure 5), and the AC power supply of the bypass input is in phase with the same frequency.
  • the amplitudes are also small, and can be reliably connected in parallel.
  • CB3 supplies power to the load.
  • the rectified input three-phase power supply charges the battery pack through the charger.
  • the lead group controllable three-phase rectification circuit and the hysteresis group controllable three-phase rectification circuit stop working, and the battery pack supplies power to the leading group DC bus through the diodes D1, D2, JK1, through the diode D3 , D4, JK2 supply the DC bus of the hysteresis group to ensure the two-phase three-phase inverter can work uninterruptedly, and supply the load.
  • ⁇ do not dry.
  • the target I" can be two days 13 ⁇ 43 ⁇ 4 3 ⁇ 4 ⁇
  • the charger also resumes work, enters the normal working mode. Since the UPS system has certain redundancy, when any one of the three-phase rectifier circuits or the inverter circuit fails, the other group can work normally. For example, when two sets of three-phase inverters are not working properly, the three-phase static switching devices SCR7-9 and SCR10-12 of the inverter output will be disconnected, and the bypass three-phase static switching device SCR13-15 will be closed.
  • the UPS can be switched to the bypass operation without interruption
  • CB2 is the bypass input breaker.
  • the load can be supplied to the load through the maintenance bypass of the UPS.
  • CB4 is the circuit breaker for maintenance bypass; the power input of the bypass can be connected to the input of other power supply or to the mains.
  • the charger input and output in this system are isolated by high frequency.

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Abstract

A UPS power source based on a phase-shifting auto-transformer and dual 6-pulse rectifiers comprises a 12-pulse phase-shifting auto-transformer T1, two paths of output devices, energy storage devices, bypass static switch devices and chargers, which are connected in parallel. Each of the output devices comprises a 6-pulse rectifier, a three-phase inverter, a power-frequency isolation transformer and a main-path static switch device connected in sequence. The UPS power source adopts two paths of output devices which are connected in parallel, and the reliability is high. Meanwhile, the power-frequency isolation transformers are arranged behind the three-phase inverters of the two paths of output devices, thereby achieving the parallel connection and isolation output of two paths of symmetrical three-phase currents, and effectively reducing the rated power, the volume, the weight and the cost of a rectifier transformer at the power-frequency UPS power source rectifier side.

Description

基于自耦移相变压器和双六脉波整流的 UPS电源 技术领域  UPS power supply based on auto-transformer phase shifting transformer and double six-pulse rectification
本发明涉及电源技术领域， 具体的说， 涉及基于自耦移相变压器和双六脉波 整流的 UPS电源。  The invention relates to the field of power supply technology, and in particular to a UPS power supply based on an auto-transformer phase shifting transformer and a double six-pulse rectification.
背景技术 Background technique
全球工业化信息化经济对高品质的大功率 UPS电源的需求越来越旺盛， 鉴于 工频 UPS电源具有对供电环境适应能力强、可靠性高、抗冲击负载能力强等优点， 工频 UPS 电源在各行业领域中得到广泛应用。 为解决传统大功率三相工频 UPS 输入侧整流导致的电力谐波污染问题，一般采用基于全隔离 12脉波自耦移相变压 器 T1 , 或者半功率 12脉波自耦移相变压器 T1平衡电抗器的 12脉波整流技术， 来抑制 6脉波整流产生的 5、 7次谐波， 该种方式存在 12脉波自耦移相变压器 T1 体积大、 重量重、 成本高的问题； 而且传统单一主功率回路结构不便于功率更大 的 UPS电源功率单元集成。  The global industrialized information economy is increasingly demanding high-quality high-power UPS power supply. In view of the advantages of power frequency UPS power supply with strong adaptability to the power supply environment, high reliability, and strong impact load resistance, the power frequency UPS power supply is Widely used in various industry sectors. In order to solve the problem of power harmonic pollution caused by the input side rectification of the traditional high-power three-phase power frequency UPS, a fully isolated 12-pulse auto-coupled phase-shifting transformer T1 or a half-power 12-pulse auto-coupled phase-shifting transformer T1 balanced reactance is generally used. 12-pulse rectification technology to suppress the 5th and 7th harmonics generated by 6-pulse rectification. This method has the problem that the 12-pulse autotransformer phase-shifting transformer T1 is bulky, heavy, and costly; The main power loop structure is not convenient for the integration of more powerful UPS power units.
发明内容 Summary of the invention
本发明目的在于解决现有技术的不足， 提供一种结构紧凑、 抗干扰能力强， 且体积小、 成本低、 可有效降低侧电力谐波干扰的 UPS电源拓扑结构。  The object of the present invention is to solve the deficiencies of the prior art and provide a UPS power supply topology structure with compact structure, strong anti-interference ability, small volume, low cost, and effective reduction of side power harmonic interference.
为实现上述目的， 本发明采用的技术方案为：  In order to achieve the above object, the technical solution adopted by the present invention is:
基于自耦移相变压器和双六脉波整流的 UPS电源， 其包括电源三相交流输入 端、电源三相交流输出端、 12脉波自耦移相变压器 Tl、两路并联连接的输出装置、 储能装置、 旁路静态开关装置和充电器； 12脉波自耦移相变压器 T1 的三相交流 输入端与电源三相交流输入端连接， 12脉波自耦移相变压器 T1设有两组三相交 流输出端， 分别为超前组三相交流输出端和滞后组三相交流输出端， 其中一路输 出装置包括依次连接的超前组 6脉波整流器、 超前组三相逆变器、 超前组工频隔 离变压器 Τ2以及超前组主路静态开关装置；另一路输出装置包括依次连接的滞后 组 6脉波整流器、滞后组三相逆变器、滞后组工频隔离变压器 Τ3以及滞后组主路 静态开关装置； 所述超前组三相交流输出端与超前组 6脉波整流器的三相交流输 入端连接，滞后组三相交流输出端与滞后组 6脉波整流器的三相交流输入端连接； 超前组主路静态开关装置的三相交流输出端和滞后组主路静态开关装置的三相交 流输出端分别与电源三相交流输出端连接， 旁路静态开关装置的三相交流输出端 日 出 ； 置设 出 出 ， 超前组输出端与超前组三相逆变器的直流输入端连接， 滞后组输出端与滞后组三 相逆变器的直流输入端连接； 储能装置的输入端与充电器的直流输出端连接， 充 电器的三相交流端与电源三相交流输入端连接， 旁路静态开关装置的三相交流输 入端亦与电源三相交流输入端连接。 The UPS power supply based on the auto-transformer phase shifting transformer and the double six-pulse rectification includes a three-phase AC input terminal of the power source, a three-phase AC output terminal of the power source, a 12-pulse autotransformer phase shifting transformer Tl, and an output device of two parallel connections. Energy storage device, bypass static switch device and charger; 12-pulse auto-coupled phase shifting transformer T1 three-phase AC input terminal is connected with power three-phase AC input terminal, 12-pulse auto-coupled phase shifting transformer T1 is provided with two groups The three-phase AC output end is an advanced group three-phase AC output end and a hysteresis group three-phase AC output end, wherein one output device includes a pre-group 6-pulse rectifier, an advanced group three-phase inverter, and an advanced assembly. Frequency isolation transformer Τ2 and advanced group main circuit static switching device; another output device includes lag group 6 pulse rectifier, lag group three-phase inverter, lag group power frequency isolation transformer Τ3 and hysteresis main circuit static switch The front-end three-phase AC output terminal is connected with the three-phase AC input terminal of the pre-group 6-pulse rectifier, and the hysteresis group three-phase AC output terminal and the hysteresis group 6-pulse The three-phase AC input terminal of the flow device is connected; the three-phase AC output terminal of the static switch device of the main group and the three-phase AC output terminal of the static switch device of the main circuit of the lag group are respectively connected with the three-phase AC output terminal of the power supply, and the bypass is static. Three-phase AC output of the switching device Sunrise; set out, the output of the lead group is connected to the DC input of the three-phase inverter of the lead group, and the output of the hysteresis group is connected to the DC input of the three-phase inverter of the hysteresis group; the input end of the energy storage device Connected to the DC output of the charger, the three-phase AC terminal of the charger is connected to the three-phase AC input of the power supply, and the three-phase AC input of the bypass static switch device is also connected to the three-phase AC input of the power supply.
进一步地， 12脉波自耦移相变压器 T1输出到上述并联两路的输出装置的三 相交流电的相互相位差为 30度。  Further, the mutual phase difference of the three-phase alternating current output from the 12-pulse autotransformer phase shifting transformer T1 to the parallel two-way output device is 30 degrees.
进一步地， 所述储能装置包括蓄电池组和两个用于电流定向流动的定向耦合 单元， 一个定向耦合单元的两个输出端分别与超前组三相逆变器的输入端的正极 和滞后组三相逆变器的输入端的正极连接， 且该定向耦合单元的输入端与蓄电池 组的正极连接； 另一个定向耦合单元的两个输出端分别与超前组三相逆变器的输 入端的负极和滞后组三相逆变器的输入端的负极连接， 且该定向耦合单元的输入 端与蓄电池组的负极连接； 所述充电器的直流输出端与蓄电池组连接； 超前组 6 脉波组整流器的输出电压和滞后组 6脉波组整流器的输出电压均高于所述蓄电池 组的电压。 实际实行时， 超前组 6脉波组整流器的输出电压和滞后组 6脉波组整 流器的输出电压均略高于所述蓄电池组的电压， 均高出 0.01~1V左右的电压。  Further, the energy storage device comprises a battery pack and two directional coupling units for current directional flow, two output ends of one directional coupling unit and a positive electrode and a lag group three of the input end of the lead three-phase inverter respectively The positive terminal of the input end of the phase inverter is connected, and the input end of the directional coupling unit is connected to the positive pole of the battery pack; the two output ends of the other directional coupling unit respectively have the negative pole and hysteresis of the input end of the lead three-phase inverter respectively The negative terminal of the input end of the group three-phase inverter is connected, and the input end of the directional coupling unit is connected with the negative pole of the battery pack; the DC output end of the charger is connected with the battery pack; the output voltage of the pre-group 6 pulse wave group rectifier The output voltages of the 6-pulse group rectifiers of the hysteresis group and the hysteresis group are both higher than the voltage of the battery pack. In actual implementation, the output voltage of the 6-pulse group rectifier of the advanced group and the output voltage of the 6-pulse group rectifier of the hysteresis group are slightly higher than the voltage of the battery pack, and are all higher than 0.01~1V.
进一步地， 所述定向耦合单元包括两个二极管， 所述一个定向耦合单元的两 个二极管的正极分别与超前组三相逆变器的直流输入端的正极和滞后组三相逆变 器的直流输入端的正极连接， 且所述一个定向耦合单元的两个二极管的负极均与 蓄电池组的正极连接； 所述另一个定向耦合单元的两个二极管的负极分别与超前 组三相逆变器的直流输入端的负极和滞后组三相逆变器的直流输入端的负极连 接，且所述另一个定向耦合单元的两个二极管的正极分别与蓄电池组的负极连接。  Further, the directional coupling unit includes two diodes, and the positive poles of the two diodes of the one directional coupling unit are respectively connected to the DC input of the positive input terminal of the DC input terminal of the lead three-phase inverter and the DC input of the lag group three-phase inverter The anode of the terminal is connected, and the cathodes of the two diodes of the one directional coupling unit are connected to the anode of the battery pack; the cathodes of the two diodes of the other directional coupling unit are respectively connected to the DC input of the lead group three-phase inverter The negative pole of the terminal is connected to the negative pole of the DC input of the three-phase inverter of the hysteresis group, and the anodes of the two diodes of the other directional coupling unit are respectively connected to the cathode of the battery pack.
进一步地， 所述定向耦合单元还包括一个开关组， 开关组包括两个开关装置， 两个开关装置分别与定向耦合单元的两个二极管并联连接。  Further, the directional coupling unit further includes a switch group, and the switch group includes two switch devices, and the two switch devices are respectively connected in parallel with two diodes of the directional coupling unit.
进一步地， 所述储能装置还包括接触器 JK1、 JK2, 分别与超前组三相逆变器 的直流输入端的正极和负极连接的两个二极管 Dl、 D2为超前组二极管， 分别与 滞后组三相逆变器的直流输入端的正极和负极连接的两个二极管 D3、 D4为滞后 组二极管； 超前组二极管的两个二极管 Dl、 D2分别并联接触器 JK1的主触头， 滞后组二极管的两个二极管 D3、 D4分别并联接触器 JK2的主触头。  Further, the energy storage device further includes contactors JK1 and JK2, and two diodes D1 and D2 respectively connected to the positive and negative terminals of the DC input end of the three-phase inverter of the advanced group are advanced group diodes, respectively, and the hysteresis group three The two diodes D3 and D4 connected to the positive and negative terminals of the DC input of the phase inverter are hysteresis group diodes; the two diodes D1 and D2 of the lead group diode are respectively connected to the main contact of the contactor JK1, and the two of the hysteresis group diodes. Diodes D3, D4 are respectively connected to the main contacts of contactor JK2.
进一步地，所述 12脉波自耦移相变压器 T1为 12脉波 30度自耦移相变压器， 所述超前组三相交流输出端为 Al、 Bl、 C1 ; 所述滞后组三相交流输出端为 A2、 B2、 C2; 超前组 6脉波组整流器的超前组可控三相整流电路由电感组 L1和单向 ^ Further, the 12-pulse autotransformer phase shifting transformer T1 is a 12-pulse 30-degree autotransformer phase shifting transformer, and the lead group three-phase AC output terminals are Al, Bl, and C1; The terminals are A2, B2, C2; the advanced group of controllable three-phase rectifier circuit of the 6-pulse group rectifier of the advanced group consists of the inductor group L1 and one-way ^
可 硅兀忏 S(JK丄、 SCR3 SCR5 SCR4 SCR6 SCR2以及¾谷（J丄 組成， 电感组 L1由电感 Lll、电感 L12和电感 L13组成，电感 L11的一端与 A1端连接， 电感 L11的另一端分别与单向可控硅元件 SCR1的正极、 SCR4的负极连接； 电感 L12的一端与 B1端连接，电感 L12的另一端分别与单向可控硅元件 SCR3的正极、 SCR6的负极连接； 电感 L13的一端与 C1端连接， 电感 L13的另一端分别与单向 可控硅元件 SCR5的正极、 SCR2的负极连接； 电容 C1的正极分别与单向可控硅 元件 SCR1 SCR3 SCR5的负极连接以及与超前组 6脉波组整流器的直流输出端 的正极连接； 电容 C1的负极分别与单向可控硅元件 SCR2 SCR4 SCR6的负极 连接以及与超前组 6脉波组整流器的直流输出端的负极连接； 所述超前组三相逆 变器的超前组三相桥逆变电路由绝缘栅双极型晶体管 IGBT1 IGBT3 IGBT5 IGBT4 IGBT6禾卩 IGBT2组成，其中绝缘珊双极型晶体管 IGBT1 , IGBT3禾卩 GBT5 的集电极分别与超前组三相逆变器的直流输入端的正极连接， 超前组三相逆变器 的直流输入端的正极与超前组 6脉波组整流器的直流输出端的正极连接， 绝缘栅 双极型晶体管 IGBT4 IGBT6和 IGBT2的发射极分别与超前组三相逆变器的直流 输入端的负极连接， 超前组三相逆变器的直流输入端的负极与超前组 6脉波组整 流器的直流输出端的负极连接； 绝缘栅双极型晶体管 IGBT1 IGBT3和 GBT5的 发射极分别与绝缘栅双极型晶体管 IGBT4 IGBT6和 IGBT2的集电极连接； 其中 绝缘栅双极型晶体管 IGBT1 IGBT3和 GBT5的发射极还分别与超前组三相逆变 器的三个三相交流输出端连接；超前组工频隔离变压器 T2的三相交流输入端与超 前组三相逆变器的三相交流输出端连接； 超前组工频隔离变压器 T2采用 D/Y11 接法，超前组工频隔离变压器 T2与超前组主路静态开关装置之间设有由电容 C31 C32 C33组成的电容组 C3， 超前组工频隔离变压器 T2的三相交流输出端为 A3 B3 C3; 电容 C31的一端分别与电容 C33的一端和三相交流输出端 A3连接， 电 容 C31的另一端分别与电容 C32的一端和三相交流输出端 B3连接， 电容 C32的 另一端分别与电容 C33的另一端和三相交流输出端 C3连接； 超前组工频隔离变 压器 T2和电容组 C3组成超前组 LC低通滤波器， 所述超前组主路静态开关装置 由双向可控硅元件 SCR7 SCR8和 SCR9组成， 双向可控硅元件 SCR7 SCR8禾口 SCR9的一端分别与超前组工频隔离变压器 T2的三相交流输出端 A3 B3 C3连 接， 双向可控硅元件 SCR7 SCR8和 SCR9的另一端分别与电源三相交流输出端 连接；滞后组 6脉波组整流器的滞后组可控三相整流电路由电感组 L2和单向可控 硅元件 SCR1 ' SCR3' SCR5' SCR4' SCR6' SCR2'以及电容 C2组成， 其 中电感组 L2由电感 L21、 电感 L22和电感 L23组成， 电感 L21的一端与 A2端连 、 α _^ 一 ι _ , ry Silicon germanium S (JK丄, SCR3 SCR5 SCR4 SCR6 SCR2 and 3⁄4 valley (J丄 composition, inductor group L1 consists of inductor L11, inductor L12 and inductor L13, one end of inductor L11 is connected to A1 terminal, the other end of inductor L11 Connected to the anode of the unidirectional thyristor element SCR1 and the cathode of the SCR4 respectively; one end of the inductor L12 is connected to the B1 terminal, and the other end of the inductor L12 is respectively connected to the anode of the unidirectional thyristor element SCR3 and the cathode of the SCR6; One end of the inductor is connected to the C1 terminal, and the other end of the inductor L13 is respectively connected to the anode of the unidirectional thyristor element SCR5 and the cathode of the SCR2; the anode of the capacitor C1 is respectively connected to the anode of the unidirectional thyristor element SCR1 SCR3 SCR5 and is advanced The positive pole connection of the DC output end of the group 6 pulse wave group rectifier; the cathode of the capacitor C1 is respectively connected to the negative pole of the unidirectional thyristor element SCR2 SCR4 SCR6 and to the cathode of the DC output end of the lead group 6 pulse wave group rectifier; The advanced three-phase bridge inverter circuit of the three-phase inverter is composed of an insulated gate bipolar transistor IGBT1 IGBT3 IGBT5 IGBT4 IGBT6 and IGBT2, wherein the insulated mountain bipolar transistor IGBT1, IGBT3集 The collector of GBT5 is connected to the positive pole of the DC input of the three-phase inverter of the advanced group, and the anode of the DC input of the advanced three-phase inverter is connected with the anode of the DC output of the 6-pulse group rectifier of the advanced group. The emitters of the bipolar transistors IGBT4 IGBT6 and IGBT2 are respectively connected to the negative poles of the DC input terminals of the lead group three-phase inverters, and the DC outputs of the DC input terminals of the lead three-phase inverters and the DC output of the lead group 6-pulse group rectifiers of the advanced group The negative connection of the terminal; the emitter of the insulated gate bipolar transistor IGBT1 IGBT3 and GBT5 are respectively connected to the collectors of the insulated gate bipolar transistor IGBT4 IGBT6 and IGBT2; wherein the emitters of the insulated gate bipolar transistors IGBT1 IGBT3 and GBT5 are respectively It is connected with three three-phase AC output terminals of the three-phase inverter of the advanced group; the three-phase AC input terminal of the advanced power frequency isolation transformer T2 is connected with the three-phase AC output terminal of the three-phase inverter of the advanced group; The frequency isolation transformer T2 adopts the D/Y11 connection method, and the capacitor C31 C32 C33 is provided between the advanced group power frequency isolation transformer T2 and the advanced group main circuit static switching device. The capacitor group C3, the three-phase AC output terminal of the advanced group power frequency isolation transformer T2 is A3 B3 C3; one end of the capacitor C31 is respectively connected with one end of the capacitor C33 and the three-phase AC output terminal A3, and the other end of the capacitor C31 is respectively One end of the capacitor C32 is connected to the three-phase AC output terminal B3, and the other end of the capacitor C32 is respectively connected to the other end of the capacitor C33 and the three-phase AC output terminal C3; the advanced group power frequency isolation transformer T2 and the capacitor group C3 form a lead group LC low Passing filter, the lead group main circuit static switching device is composed of a bidirectional thyristor element SCR7 SCR8 and SCR9, and one end of the bidirectional thyristor element SCR7 SCR8 and SCR9 respectively communicates with the three-phase alternating current of the advanced group power frequency isolation transformer T2 The output terminal A3 B3 C3 is connected, the other ends of the triac SCR7 SCR8 and SCR9 are respectively connected with the three-phase AC output terminal of the power supply; the hysteresis group of the hysteresis group 6 pulse group rectifier is controlled by the inductance group L2 and The unidirectional thyristor element SCR1 ' SCR3 ' SCR5 ' SCR4 ' SCR6 ' SCR2 ' and the capacitor C2 , wherein the inductor group L2 is composed of the inductor L21 , the inductor L22 and the inductor L23 , one end of the inductor L21 is connected with the A2 , α _^ 一ι _ , ry
， 愁 L2i 另一 可 兀 SCRl ' 正 、；(JK4 贝《 ； 电感 L22的一端与 B2端连接， 电感 L22的另一端分别与单向可控硅元件 SCR3' 的正极、 SCR6'的负极连接； 电感 L23的一端与 C2端连接， 电感 L23的另一端 分别与单向可控硅元件 SCR5'的正极、 SCR2'的负极连接； 电容 C2的正极分别与 单向可控硅元件 SCRl '、 SCR3'、 SCR5'的负极连接以及与滞后组 6脉波组整流 器的直流输出端的正极连接；电容 C2的负极分别与单向可控硅元件 SCR2'、SCR4 '、 SCR6'的负极连接以及与滞后组 6脉波组整流器的直流输出端的负极连接； 所 述滞后组三相逆变器的滞后组三相桥逆变电路由绝缘栅双极型晶体管 IGBT1 ' 、 IGBT3'、 IGBT5' 、 IGBT4'、 IGBT6'和 IGBT2'组成， 其中绝缘栅双极型晶体管 IGBT1 '、 IGBT3'和 GBT5'的集电极分别与滞后组三相逆变器的直流输入端的正 极连接， 滞后组三相逆变器的直流输入端的正极与滞后组 6脉波组整流器的直流 输出端的正极连接， 绝缘栅双极型晶体管 IGBT4' 、 IGBT6'和 IGBT2'的发射极分 别与滞后组三相逆变器的直流输入端的负极连接， 滞后组三相逆变器的直流输入 端的负极与滞后组 6脉波组整流器的直流输出端的负极连接； 绝缘栅双极型晶体 管 IGBT1 ' JGBT3'和 GBT5'的发射极分别与绝缘栅双极型晶体管 IGBT4' JGBT6 '和 IGBT2'的集电极连接； 其中绝缘栅双极型晶体管 IGBT1 '、 IGBT3 '禾卩 GBT5 ' 的发射极还分别与滞后组三相逆变器的三个三相交流输出端连接； 滞后组工频隔 离变压器 T3的三相交流输入端与滞后组三相逆变器的三相交流输出端连接；滞后 组工频隔离变压器 T3采用 D/Y11接法， 滞后组工频隔离变压器 T3与滞后组主路 静态开关装置之间设有由电容 C41、 C42、 C43组成的电容组 C4， 滞后组工频隔 离变压器 T3的三相交流输出端为 A4、 B5、 C6; 电容 C41的一端分别与电容 C43 的一端和三相交流输出端 A4连接， 电容 C41的另一端分别与电容 C42的一端和 三相交流输出端 B4连接， 电容 C42的另一端分别与电容 C43的另一端和三相交 流输出端 C4连接;滞后组工频隔离变压器 T3和电容组 C4组成滞后组 LC低通滤 波器， 所述滞后组主路静态开关装置由双向可控硅元件 SCR10、 SCR11和 SCR12 组成，双向可控硅元件 SCR10、 SCR11和 SCR12的一端分别与滞后组工频隔离变 压器 T3的三相交流输出端 A4、 B4、 C4连接， 双向可控硅元件 SCR10、 SCR11 和 SCR12的另一端分别与电源三相交流输出端连接； 所述旁路静态开关装置由双 向可控硅元件 SCR13、 SCR14和 SCR15组成， 双向可控硅元件 SCR13、 SCR14 和 SCR15的一端分别与电源三相交流输入端连接，双向可控硅元件 SCR13、SCR14 和 SCR15的另一端分别与电源三相交流输出端连接。  , 愁L2i another 兀SCRl '正,; (JK4 shell "; one end of the inductor L22 is connected to the B2 end, and the other end of the inductor L22 is respectively connected to the anode of the unidirectional thyristor element SCR3' and the cathode of the SCR6'; One end of the inductor L23 is connected to the C2 end, and the other end of the inductor L23 is respectively connected to the anode of the unidirectional thyristor element SCR5' and the cathode of the SCR2'; the anode of the capacitor C2 is respectively connected to the unidirectional thyristor element SCR1 ', SCR3' The negative connection of the SCR5' is connected to the positive terminal of the DC output of the 6-pulse group rectifier of the hysteresis group; the negative terminal of the capacitor C2 is respectively connected to the negative terminals of the unidirectional thyristor elements SCR2', SCR4', SCR6' and the hysteresis group 6 The negative pole connection of the DC output end of the pulse wave group rectifier; the hysteresis group three-phase bridge inverter circuit of the hysteresis group three-phase inverter is composed of insulated gate bipolar transistors IGBT1 ', IGBT3', IGBT5', IGBT4', IGBT6' And IGBT2', wherein the collectors of the insulated gate bipolar transistors IGBT1', IGBT3' and GBT5' are respectively connected to the positive terminal of the DC input terminal of the lag group three-phase inverter, and the DC input of the lag group three-phase inverter The anode of the terminal is connected to the anode of the DC output of the 6-pulse group rectifier of the lag group, and the emitters of the insulated gate bipolar transistors IGBT4', IGBT6' and IGBT2' are respectively connected to the cathode of the DC input terminal of the lag group three-phase inverter. The negative pole of the DC input of the three-phase inverter of the hysteresis group is connected to the negative pole of the DC output of the hysteresis group 6 pulse wave group rectifier; the emitters of the insulated gate bipolar transistors IGBT1 'JGBT3' and GBT5' are respectively insulated with the insulated gate bipolar type The collector of the IGBT 4' JGBT6 'and the IGBT 2' is connected; wherein the emitters of the insulated gate bipolar transistor IGBT1 ', IGBT3 'and the GBT5' are also respectively connected to the three-phase AC output of the lag group three-phase inverter Connection; lag group power frequency isolation transformer T3 three-phase AC input terminal is connected with the three-phase AC output terminal of the lag group three-phase inverter; the lag group power frequency isolation transformer T3 adopts D/Y11 connection method, hysteresis group power frequency isolation A capacitor group C4 consisting of capacitors C41, C42, C43 and a three-phase AC of the hysteresis group power frequency isolation transformer T3 are provided between the transformer T3 and the main circuit static switching device of the hysteresis group. The ends are capacitors A4, B5, and C6; one end of the capacitor C41 is connected to one end of the capacitor C43 and the three-phase AC output terminal A4, and the other end of the capacitor C41 is respectively connected to one end of the capacitor C42 and the three-phase AC output terminal B4, and the capacitor C42 The other end of the capacitor is connected to the other end of the capacitor C43 and the three-phase AC output terminal C4; the hysteresis group power frequency isolation transformer T3 and the capacitor group C4 form a hysteresis group LC low-pass filter, and the hysteresis group main path static switching device is bidirectional The thyristor components SCR10, SCR11 and SCR12 are composed, and one ends of the triac SCR10, SCR11 and SCR12 are respectively connected with the three-phase AC output terminals A4, B4 and C4 of the hysteresis group power frequency isolation transformer T3, and the bidirectional thyristor components are respectively connected. The other ends of the SCR10, SCR11 and SCR12 are respectively connected to the three-phase AC output terminal of the power supply; the bypass static switching device is composed of the triac SCR13, SCR14 and SCR15, and one end of the triac SCR13, SCR14 and SCR15 They are respectively connected to the three-phase AC input terminal of the power supply, and the other ends of the two-way thyristor components SCR13, SCR14 and SCR15 are respectively connected with the three-phase AC power supply. Terminal.
进一步地， 电源三相交流输入端与 12脉波自耦移相变压器 T1之间设有三相 ^ ^ Further, a three-phase is provided between the three-phase AC input end of the power source and the 12-pulse autotransformer phase shifting transformer T1. ^ ^
入开天 ¾直^：131和 器 ， 器 由 器 FUSE1 hU^Z ^ . 成， 熔断器 FUSE1 FUSE2和 FUSE3的一端与 12脉波自耦移相变压器 T1的三 相交流输入端连接， 熔断器 FUSE1 FUSE2和 FUSE3的另一端与三相输入开关 装置 CB1的输出端连接，三相输入开关装置 CB1的输入端与电源三相交流输入端 连接。  Into the open 3⁄4 straight ^: 131 and the device, the device FUSE1 hU ^ Z ^ . into, fuse one end of FUSE1 FUSE2 and FUSE3 connected with the three-phase AC input of the 12-pulse autotransformer phase-shifting transformer T1, fuse The other end of FUSE1 FUSE2 and FUSE3 is connected to the output of the three-phase input switching device CB1, and the input terminal of the three-phase input switching device CB1 is connected to the three-phase AC input terminal of the power supply.
进一步地， 所述熔断器 FUSE1 FUSE2和 FUSE3的一端设有霍尔电流传感 器 HP1 HP2和 HP3， 且熔断器 FUSE1 FUSE2和 FUSE3的一端分别通过霍尔 电流传感器 HP1 HP2和 HP3与 12脉波自耦移相变压器 T1的三相交流输入端连 接。  Further, one ends of the fuses FUSE1 FUSE2 and FUSE3 are provided with Hall current sensors HP1 HP2 and HP3, and one ends of the fuses FUSE1 FUSE2 and FUSE3 are self-coupled by the Hall current sensors HP1 HP2 and HP3 and 12 pulses, respectively. The three-phase AC input of the phase transformer T1 is connected.
进一步地， 所述基于自耦移相变压器和双六脉波整流的 UPS电源还包括用于 控制逆变器输出的同步控制单元， 同步控制单元的输入端与电源三相交流输入端 连接， 同步控制单元设有两组输出端， 一组输出端与超前组三相逆变器的控制端 连接， 另一组输出端与滞后组三相逆变器的控制端连接。  Further, the UPS power supply based on the auto-transformer phase shifting transformer and the double six-pulse rectification further includes a synchronous control unit for controlling the output of the inverter, and the input end of the synchronous control unit is connected with the three-phase AC input end of the power supply, and is synchronized. The control unit is provided with two sets of outputs, one set of outputs is connected with the control end of the lead group three-phase inverter, and the other set of outputs is connected with the control end of the hysteresis group three-phase inverter.
进一步地， 超前组 6脉波组整流器的直流输出端的正极与超前组三相逆变器 的直流输入端的正极之间设有霍尔电流传感器 HP5; 滞后组 6脉波组整流器的直 流输出端的正极与滞后组三相逆变器的直流输入端的正极之间设有霍尔电流传感 器 HP6;超前组三相逆变器的交流输出端与超前组工频隔离变压器 T2的三相交流 输入端之间设有霍尔电流传感器 HP7 HP8和 HP9, 滞后组三相逆变器的交流输 出端与超前组工频隔离变压器 T3 的三相交流输入端之间设有霍尔电流传感器 HP10 HP11 和 HP12; 所述电源三相交流输出端设有断路器 CB3, 断路器 CB3 的一端分别与超前组主路静态开关装置的输出端、 滞后组主路静态开关装置的输 出端和旁路静态开关装置的输出端对应连接， 断路器 CB3的另一端与电源三相交 流输出端连接； 旁路静态开关装置的输入端与电源三相交流输入端之间设有断路 器 CB2, 电源三相交流输入端与电源三相交流输出端之间设有断路器 CB4  Further, a Hall current sensor HP5 is provided between the anode of the DC output end of the 6-pulse group rectifier of the advanced group and the anode of the DC input of the lead group three-phase inverter; the anode of the DC output end of the 6-pulse group rectifier of the hysteresis group A Hall current sensor HP6 is provided between the positive pole of the DC input terminal of the three-phase inverter of the lag group; the AC output end of the lead three-phase inverter is connected with the three-phase AC input terminal of the advanced group power frequency isolation transformer T2 Hall current sensors HP7 HP8 and HP9 are provided, and the Hall current sensors HP10 HP11 and HP12 are provided between the AC output of the three-phase inverter of the hysteresis group and the three-phase AC input of the power line isolation transformer T3. The three-phase AC output terminal of the power supply is provided with a circuit breaker CB3, one end of the circuit breaker CB3 and the output end of the static switch device of the lead group main circuit, the output end of the main circuit static switch device of the hysteresis group and the output end of the bypass static switch device. Corresponding connection, the other end of the circuit breaker CB3 is connected with the three-phase AC output end of the power supply; the input end of the bypass static switching device and the three-phase AC input end of the power supply Provided breaker CB2, CB4 three-phase power circuit breaker is provided between the AC power input terminal and the output terminal of the three-phase AC
本发明的有益效果为： 基于自耦移相变压器和双六脉波整流的 UPS电源， 包 括电源三相交流输入端、 电源三相交流输出端、 12脉波自耦移相变压器 Tl、 两路 并联连接的输出装置、 储能装置、 旁路静态开关装置和充电器； 12脉波自耦移相 变压器 T1 的三相交流输入端与电源三相交流输入端连接， 12脉波自耦移相变压 器 T1设有两组三相交流输出端，分别为超前组三相交流输出端和滞后组三相交流 输出端， 其中一路输出装置包括依次连接的超前组 6脉波整流器、 超前组三相逆 变器、超前组工频隔离变压器 Τ2以及超前组主路静态开关装置； 另一路输出装置 包括依次连接的滞后组 6脉波整流器、 滞后组三相逆变器、 滞后组工频隔离变压 器 T3 开 置； 三 The beneficial effects of the invention are as follows: UPS power supply based on auto-transformer phase shifting transformer and double six-pulse rectification, including power supply three-phase AC input terminal, power supply three-phase AC output terminal, 12-pulse auto-coupled phase shifting transformer Tl, two-way Parallel connection output device, energy storage device, bypass static switching device and charger; 12-pulse auto-coupled phase-shifting transformer T1 three-phase AC input terminal is connected with power supply three-phase AC input terminal, 12-pulse auto-coupled phase shifting The transformer T1 is provided with two sets of three-phase AC output terminals, which are an advanced group three-phase AC output terminal and a hysteresis group three-phase AC output terminal, wherein one of the output devices includes a pre-group 6-pulse rectifier connected in series, and a three-phase inverse of the advanced group. Transformer, advanced group power frequency isolation transformer Τ2 and advanced group main circuit static switching device; another output device includes lag group 6 pulse rectifier, lag group three-phase inverter, and hysteresis group power frequency isolation transformer T3 open; three
整流器的三相交流输入端连接， 滞后组三相交流输出端与滞后组 6脉波整流器的 三相交流输入端连接； 超前组主路静态开关装置的三相交流输出端和滞后组主路 静态开关装置的三相交流输出端分别与电源三相交流输出端连接， 旁路静态开关 装置的三相交流输出端亦与电源三相交流输出端连接； 所述储能装置设有超前组 输出端和滞后组输出端， 超前组输出端与超前组三相逆变器的直流输入端连接， 滞后组输出端与滞后组三相逆变器的直流输入端连接； 储能装置的输入端与充电 器的直流输出端连接， 充电器的三相交流端与电源三相交流输入端连接， 旁路静 态开关装置的三相交流输入端亦与电源三相交流输入端连接。 本发明采用两路并 联输出装置， 使得本发明的使用可靠性增加； 同时将工频隔离变压器设置于两路 输出装置的三相逆变器的后面， 实现两路对称三相电的并联和隔离输出， 有效降 低了工频 UPS电源整流侧整流变压器的额定功率、 体积、 重量以及成本。 The three-phase AC input terminal of the rectifier is connected, and the three-phase AC output end of the hysteresis group is connected with the three-phase AC input end of the 6-pulse rectifier of the hysteresis group; the three-phase AC output end of the static switch device of the main group and the main circuit of the hysteresis group are static. The three-phase AC output end of the switch device is respectively connected with the three-phase AC output end of the power supply, and the three-phase AC output end of the bypass static switch device is also connected with the three-phase AC output end of the power supply; the energy storage device is provided with an output of the lead group And the output of the hysteresis group, the output of the lead group is connected with the DC input end of the three-phase inverter of the lead group, and the output end of the hysteresis group is connected with the DC input end of the three-phase inverter of the hysteresis group; the input end of the energy storage device and charging The DC output terminal of the charger is connected, the three-phase AC terminal of the charger is connected with the three-phase AC input terminal of the power supply, and the three-phase AC input terminal of the bypass static switch device is also connected with the three-phase AC input terminal of the power supply. The invention adopts two parallel output devices, so that the use reliability of the invention is increased; at the same time, the power frequency isolation transformer is disposed behind the three-phase inverter of the two output devices to realize the parallel connection and isolation of the two symmetric three-phase electricity. The output effectively reduces the rated power, volume, weight and cost of the rectifier side rectifier transformer of the power frequency UPS power supply.
附图说明 DRAWINGS
图 1为本发明的结构示意图。  Figure 1 is a schematic view of the structure of the present invention.
图 2为本发明的 12脉波自耦移相变压器 T1的绕组结构和连接示意图。  2 is a schematic view showing the winding structure and connection of the 12-pulse autotransformer phase shifting transformer T1 of the present invention.
图 3为本发明的两路输出装置的同步隔离输出并联三相逆变器主电路图。 图 4为本发明的储能装置的结构示意图。  3 is a main circuit diagram of a synchronous isolated output parallel three-phase inverter of a two-way output device of the present invention. 4 is a schematic structural view of an energy storage device of the present invention.
图 5为本发明的系统原理图。  Figure 5 is a schematic diagram of the system of the present invention.
具体实施方式 detailed description
实施例： 如图 1至图 4所示， 基于自耦移相变压器和双六脉波整流的 UPS电 源，包括电源三相交流输入端、电源三相交流输出端、 12脉波自耦移相变压器 Tl、 两路并联连接的输出装置、 储能装置、 旁路静态开关装置和充电器； 12脉波自耦 移相变压器 T1 的三相交流输入端与电源三相交流输入端连接， 12脉波自耦移相 变压器 T1设有两组三相交流输出端，分别为超前组三相交流输出端和滞后组三相 交流输出端， 其中一路输出装置包括依次连接的超前组 6脉波整流器、 超前组三 相逆变器、超前组工频隔离变压器 Τ2以及超前组主路静态开关装置； 另一路输出 装置包括依次连接的滞后组 6脉波整流器、 滞后组三相逆变器、 滞后组工频隔离 变压器 Τ3以及滞后组主路静态开关装置； 所述超前组三相交流输出端与超前组 6 脉波整流器的三相交流输入端连接， 滞后组三相交流输出端与滞后组 6脉波整流 器的三相交流输入端连接； 超前组主路静态开关装置的三相交流输出端和滞后组 主路静态开关装置的三相交流输出端分别与电源三相交流输出端连接， 旁路静态 开关装置的三相交流输出端亦与电源三相交流输出端连接； 所述储能装置设有超 出 ， 出 三 Embodiment: As shown in FIG. 1 to FIG. 4, the UPS power supply based on the auto-transformer phase shifting transformer and the double six-pulse rectification includes a three-phase AC input terminal of the power source, a three-phase AC output terminal of the power source, and an autotransformer phase shift of 12 pulses. Transformer Tl, two parallel output devices, energy storage device, bypass static switch device and charger; 12-pulse auto-coupled phase-shift transformer T1 three-phase AC input terminal connected to the power supply three-phase AC input terminal, 12-pulse The wave autotransformer phase shifting transformer T1 is provided with two sets of three-phase AC output terminals, which are respectively a front group three-phase AC output end and a hysteresis group three-phase AC output end, wherein one of the output devices includes a pre-group 6-pulse rectifier which is sequentially connected, Leading group three-phase inverter, advanced group power frequency isolation transformer Τ2 and advanced group main circuit static switching device; The other output device includes lag group 6 pulse rectifier, lag group three-phase inverter, and lag group Frequency isolation transformer Τ3 and hysteresis group main circuit static switching device; said pre-group three-phase AC output terminal is connected with three-phase AC input terminal of lead group 6 pulse wave rectifier, lag group three-phase The AC output terminal is connected with the three-phase AC input terminal of the 6-pulse rectifier of the lag group; the three-phase AC output terminal of the static switch device of the main group and the three-phase AC output terminal of the static switch device of the main circuit of the lag group are respectively connected with the three-phase AC power supply The AC output terminal is connected, and the three-phase AC output terminal of the bypass static switch device is also connected to the three-phase AC output terminal of the power supply; Out, out three
接， 滞后组输出端与滞后组三相逆变器的直流输入端连接； 储能装置的输入端与 充电器的直流输出端连接， 充电器的三相交流端与电源三相交流输入端连接， 旁 路静态开关装置的三相交流输入端亦与电源三相交流输入端连接。 The output of the hysteresis group is connected to the DC input end of the three-phase inverter of the hysteresis group; the input end of the energy storage device is connected to the DC output end of the charger, and the three-phase AC end of the charger is connected to the three-phase AC input end of the power supply. The three-phase AC input terminal of the bypass static switch device is also connected to the three-phase AC input terminal of the power supply.
进一步地， 12脉波自耦移相变压器 T1输出到上述并联两路的输出装置的三 相交流电的相互相位差为 30度。  Further, the mutual phase difference of the three-phase alternating current output from the 12-pulse autotransformer phase shifting transformer T1 to the parallel two-way output device is 30 degrees.
本发明工作时， 12脉波自耦移相变压器 T1 的输入端通过电源相交流输入端 与市电连接， 市电经过 12脉波自耦移相变压器 T1降压并分两路通过两路并联的 输出装置对外输出， 在对外输出时， 超前组工频隔离变压器、 滞后组工频隔离变 压器分别设置于上述的两路输出装置之中， 对电路进行分别隔离， 因此两个工频 隔离变压器的功率较小， 可以做到小型化、 轻量化， 有利于集成； 在市电正常的 情况下， 旁路静态开关为断开状态， 12脉波自耦移相变压器 T1将输入的对称三 相交流电源移相为两组相位对应互差 30度的对称三相交流电源；两组对称三相交 流电源分别经过超前组 6脉波整流器、 滞后组 6脉波整流器整流后， 输出两路独 立直流电源分别供给后级的三相逆变器； 此时， 市电三相电源通过充电器对储能 装置进行充电； 超前组三相逆变器和滞后组三相逆变器相互对立， 分别输出对称 三相电到超前组工频隔离变压器、 滞后组工频隔离变压器， 超前组、 滞后组工频 隔离变压器和超前组、滞后组主路静态开关装置实现两组对称三相电的并联输出。  In the working of the invention, the input end of the 12-pulse autotransformer phase shifting transformer T1 is connected to the mains through the AC input terminal of the power supply phase, and the mains is stepped down by the 12-pulse autotransformer phase shifting transformer T1 and connected in two ways through two parallel circuits. The output device is externally outputted. When externally outputting, the advanced group power frequency isolation transformer and the hysteresis group power frequency isolation transformer are respectively disposed in the above two output devices, respectively, and the circuits are separately isolated, so the two power frequency isolation transformers are The power is small, it can be miniaturized and lightened, which is conducive to integration. In the case of normal power supply, the bypass static switch is in the off state, and the 12-pulse autotransformer phase shifting transformer T1 will input the symmetric three-phase AC. The phase shift of the power supply is a symmetrical three-phase AC power supply with two phases corresponding to each other with a difference of 30 degrees; two sets of symmetrical three-phase AC power supplies are respectively rectified by a pre-group 6-pulse rectifier and a hysteresis group 6-pulse rectifier, and two independent DC power supplies are output. The three-phase inverters of the latter stage are respectively supplied; at this time, the commercial three-phase power source charges the energy storage device through the charger; the advanced group three-phase inverter The three-phase inverters of the lag group are opposite each other, respectively output symmetric three-phase electric to the advanced group power frequency isolation transformer, the hysteresis group power frequency isolation transformer, the advanced group, the lag group power frequency isolation transformer and the advanced group, the hysteresis group main circuit static switch The device realizes parallel output of two sets of symmetric three-phase electricity.
在常规情况下， 需要利用大电感耦合的大电流平衡电抗器， 才能实现双 6脉 波整流器输出的直流侧并联，由于其成本高，抵消了 12脉波整流带来的经济效益。 本发明避开了使用笨重的平衡电抗器， 分别采用两个主电路完全相同的独立逆变 通道， 逆变通道由三相逆变器、 工频隔离变压器和主路静态开关装置组成， 这样 双 6脉波整流就不能通过直流侧并联形成环流， 从而使自耦移相变压器精确实现 了 12脉波整流， 极大地减小了输入电流谐波。  Under normal circumstances, it is necessary to use a large current-balanced reactor with large inductive coupling to realize the DC-side parallel connection of the output of the double 6-pulse rectifier. Due to its high cost, the economic benefits brought by the 12-pulse rectification are offset. The invention avoids the use of a bulky balanced reactor, and adopts two independent inverter channels with the same main circuit respectively. The inverter channel is composed of a three-phase inverter, a power frequency isolation transformer and a main static switch device, so that the double 6-pulse rectification cannot form a circulating current through parallel connection on the DC side, so that the auto-coupled phase-shifting transformer accurately realizes 12-pulse rectification, which greatly reduces the input current harmonics.
两个主电路完全相同的独立逆变通道其输出分别通过超前组、 滞后组工频隔 离变压器隔离后， 由两路的超前组、 滞后组主路静态开关装置实现并联输出， 这 样既保住了 6脉波整流输出功率的平衡， 又增强了系统的可靠性。 参考图 3， 工 作时， 两路独立逆变通道按相同规律工作， 输出各相频率、 相位和幅值相同的三 相电； 并使输出三相电与输入电网电压同步。  The output of the independent inverter channels with the same two main circuits is separated by the advanced group and the hysteresis group power frequency isolation transformer respectively, and the parallel output is realized by the two-way advanced group and the hysteresis group main static switching device, thus saving 6 The balance of the pulse wave rectified output power enhances the reliability of the system. Referring to Figure 3, during operation, the two independent inverter channels work in the same way, output three-phase power of the same phase frequency, phase and amplitude; and synchronize the output three-phase power with the input grid voltage.
本发明对外供电采用冗余设计， 稳定可靠性高， 可持续对外供电。 本发明的 装置正常工作时， 有两路输出装置对外供电， 当某一路输出装置出现故障时， 另 一路输出装置仍然可以对外供电； 当两路的输出装置均出现故障时， 两路的主路 ^ , X Π , - ^Τ - ^ ι The external power supply of the invention adopts a redundant design, has high stability and reliability, and can be continuously supplied to the outside. When the device of the present invention works normally, two output devices are externally powered. When one output device fails, the other output device can still supply external power; when both output devices fail, the two main paths ^ , X Π , - ^Τ - ^ ι
开天 直将 开， 开 直 通， 进仃芳路湔出； 帀 电中断， 储能装置将直接对两路的输出装置的三相逆变器进行供电， 提供直流电 能。  Open the sky, open, open, and enter the road. When the power is interrupted, the energy storage device will directly supply the three-phase inverter of the two output devices to provide DC power.
本发明采用 12脉波自耦移相变压器 T1和两路输出装置的配合方式， 在极大 降低常规 12脉波自耦移相变压器容量的情况下， 实现了 12脉波整流， 有效降低 了 AC— DC整流的网侧输入电流谐波、 有效抑制 5 7次谐波。  The invention adopts the cooperation mode of the 12-pulse auto-coupled phase shifting transformer T1 and the two-way output device, and realizes 12-pulse rectification under the condition of greatly reducing the capacity of the conventional 12-pulse autotransformer phase shifting transformer, effectively reducing the AC — DC-rated network-side input current harmonics, effectively suppressing the 5th harmonic.
进一步地， 所述储能装置包括蓄电池组和两个用于电流定向流动的定向耦合 单元， 一个定向耦合单元的两个输出端分别与超前组三相逆变器的输入端的正极 和滞后组三相逆变器的输入端的正极连接， 且该定向耦合单元的输入端与蓄电池 组的正极连接； 另一个定向耦合单元的两个输出端分别与超前组三相逆变器的输 入端的负极和滞后组三相逆变器的输入端的负极连接， 且该定向耦合单元的输入 端与蓄电池组的负极连接； 所述充电器的直流输出端与蓄电池组连接； 超前组 6 脉波组整流器的输出电压和滞后组 6脉波组整流器的输出电压均高于所述蓄电池 组的电压。 实际实行时， 超前组 6脉波组整流器的输出电压和滞后组 6脉波组整 流器的输出电压均略高于所述蓄电池组的电压， 均高出 0.01~1V左右的电压。  Further, the energy storage device comprises a battery pack and two directional coupling units for current directional flow, two output ends of one directional coupling unit and a positive electrode and a lag group three of the input end of the lead three-phase inverter respectively The positive terminal of the input end of the phase inverter is connected, and the input end of the directional coupling unit is connected to the positive pole of the battery pack; the two output ends of the other directional coupling unit respectively have the negative pole and hysteresis of the input end of the lead three-phase inverter respectively The negative terminal of the input end of the group three-phase inverter is connected, and the input end of the directional coupling unit is connected with the negative pole of the battery pack; the DC output end of the charger is connected with the battery pack; the output voltage of the pre-group 6 pulse wave group rectifier The output voltages of the 6-pulse group rectifiers of the hysteresis group and the hysteresis group are both higher than the voltage of the battery pack. In actual implementation, the output voltage of the 6-pulse group rectifier of the advanced group and the output voltage of the 6-pulse group rectifier of the hysteresis group are slightly higher than the voltage of the battery pack, and are all higher than 0.01~1V.
本发明采用两个定向耦合单元和蓄电池组配合的方式，实现双直流回路结构； 两个直流回路共用一组蓄电池组， 结构简单， 成本低。 本发明工作时， 且当各个 装置正常工作时， 两路的输出装置的整流器的输出电压均高于所述蓄电池组的电 压， 即两路的三相逆变器的输入电压高于蓄电池组的电压， 由于蓄电池组通过定 向耦合单元与三相逆变器连接， 此时蓄电池组不对三相逆变器进行供电， 且定向 耦合单元阻止电流流向蓄电池组。 当市电中断时， 整流器不能对三相逆变器进行 供电， 此时蓄电池组的电压高于三相逆变器的输入端电压， 蓄电池组直接对三相 逆变器进行供电； 使得 UPS电源可以持续供电。  The invention adopts two directional coupling units and a battery pack to realize a double DC loop structure; two DC loops share a group of battery packs, and the structure is simple and the cost is low. When the present invention works, and when each device works normally, the output voltage of the rectifier of the two-way output device is higher than the voltage of the battery pack, that is, the input voltage of the two-way three-phase inverter is higher than that of the battery pack. Voltage, since the battery pack is connected to the three-phase inverter through the directional coupling unit, the battery pack does not supply power to the three-phase inverter, and the directional coupling unit blocks current from flowing to the battery pack. When the mains is interrupted, the rectifier cannot supply power to the three-phase inverter. At this time, the voltage of the battery pack is higher than the input voltage of the three-phase inverter, and the battery pack directly supplies power to the three-phase inverter; Continuous power supply.
进一步地， 所述定向耦合单元包括两个二极管， 所述一个定向耦合单元的两 个二极管的正极分别与超前组三相逆变器的直流输入端的正极和滞后组三相逆变 器的直流输入端的正极连接， 且所述一个定向耦合单元的两个二极管的负极均与 蓄电池组的正极连接； 所述另一个定向耦合单元的两个二极管的负极分别与超前 组三相逆变器的直流输入端的负极和滞后组三相逆变器的直流输入端的负极连 接，且所述另一个定向耦合单元的两个二极管的正极分别与蓄电池组的负极连接。  Further, the directional coupling unit includes two diodes, and the positive poles of the two diodes of the one directional coupling unit are respectively connected to the DC input of the positive input terminal of the DC input terminal of the lead three-phase inverter and the DC input of the lag group three-phase inverter The anode of the terminal is connected, and the cathodes of the two diodes of the one directional coupling unit are connected to the anode of the battery pack; the cathodes of the two diodes of the other directional coupling unit are respectively connected to the DC input of the lead group three-phase inverter The negative pole of the terminal is connected to the negative pole of the DC input of the three-phase inverter of the hysteresis group, and the anodes of the two diodes of the other directional coupling unit are respectively connected to the cathode of the battery pack.
通过二极管实现电流的定向流动， 结构简单、 成本低。  The directional flow of current through the diode is simple in structure and low in cost.
进一步地， 所述定向耦合单元还包括一个开关组， 开关组包括两个开关装置， 两个开关装置分别与定向耦合单元的两个二极管并联连接。 口 ^ Π Η 一 、， 巾 ¾止 '吊 应， 且 直正 工 ， 定 兀 片天組断片； 帀 电中断后， 定向耦合单元的开关组的两个开关闭合， 二极管形成短路； 减少二极 管的能耗， 节省能源； 提高 UPS系统的效率。 Further, the directional coupling unit further includes a switch group, and the switch group includes two switch devices, and the two switch devices are respectively connected in parallel with two diodes of the directional coupling unit. 口 ^ Π Η 一 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Consumption, saving energy; improving the efficiency of the UPS system.
进一步地， 所述储能装置还包括接触器 JK1、 JK2, 分别与超前组三相逆变器 的直流输入端的正极和负极连接的两个二极管 Dl、 D2为超前组二极管， 分别与 滞后组三相逆变器的直流输入端的正极和负极连接的两个二极管 D3、 D4为滞后 组二极管； 超前组二极管的两个二极管 Dl、 D2分别并联接触器 JK1的主触头， 滞后组二极管的两个二极管 D3、 D4分别并联接触器 JK2的主触头。  Further, the energy storage device further includes contactors JK1 and JK2, and two diodes D1 and D2 respectively connected to the positive and negative terminals of the DC input end of the three-phase inverter of the advanced group are advanced group diodes, respectively, and the hysteresis group three The two diodes D3 and D4 connected to the positive and negative terminals of the DC input of the phase inverter are hysteresis group diodes; the two diodes D1 and D2 of the lead group diode are respectively connected to the main contact of the contactor JK1, and the two of the hysteresis group diodes. Diodes D3, D4 are respectively connected to the main contacts of contactor JK2.
Dl、 D2构成蓄电池向超前组直流母线供电的单向通道， 在 D1和 D2上分别 并联一个接触器 JK1 的主触头； 同样， D3、 D4构成蓄电池向滞后组直流母线供 电的单向通道， 在 D3和 D4上也分别并联一个接触器 JK2的主触头。在市电正常 情况下， JK1和 JK2是断开的， 由于蓄电池组电压略低于两整流输出的直流母线 电压， 蓄电池回路对两组直流母线不会产生影响， 因而不影响双六脉波全桥整流 实现 12脉波整流。 当市电不正常时， 控制电路控制接触器 JK1、 JK2闭合， 消除 了二极管 Dl、 D2、 D3、 D4的导通损耗， 提高了蓄电池放电时 UPS系统的效率。  Dl and D2 form a unidirectional channel for supplying power to the DC bus of the leading group. The main contacts of a contactor JK1 are respectively connected in parallel with D1 and D2. Similarly, D3 and D4 constitute a unidirectional channel for supplying power to the DC bus of the lag group. The main contacts of a contactor JK2 are also connected in parallel on D3 and D4, respectively. Under the normal condition of the mains, JK1 and JK2 are disconnected. Since the battery pack voltage is slightly lower than the DC bus voltage of the two rectified outputs, the battery circuit will not affect the two sets of DC bus, so it does not affect the double six-pulse Bridge rectification achieves 12-pulse rectification. When the mains is not normal, the control circuit controls the contactors JK1 and JK2 to close, eliminating the conduction losses of the diodes D1, D2, D3, and D4, and improving the efficiency of the UPS system when the battery is discharged.
进一步地，所述 12脉波自耦移相变压器 T1为 12脉波 30度自耦移相变压器， 所述超前组三相交流输出端为 Al、 Bl、 C1 ; 所述滞后组三相交流输出端为 A2、 B2、 C2; 超前组 6脉波组整流器的超前组可控三相整流电路由电感组 L1和单向 可控硅元件 SCR1、 SCR3、 SCR5、 SCR4、 SCR6、 SCR2以及电容 CI组成， 其中 电感组 L1由电感 Lll、电感 L12和电感 L13组成，电感 L11的一端与 A1端连接， 电感 L11的另一端分别与单向可控硅元件 SCR1的正极、 SCR4的负极连接； 电感 L12的一端与 B1端连接，电感 L12的另一端分别与单向可控硅元件 SCR3的正极、 SCR6的负极连接； 电感 L13的一端与 C1端连接， 电感 L13的另一端分别与单向 可控硅元件 SCR5的正极、 SCR2的负极连接； 电容 C1的正极分别与单向可控硅 元件 SCR1、 SCR3、 SCR5的负极连接以及与超前组 6脉波组整流器的直流输出端 的正极连接； 电容 C1的负极分别与单向可控硅元件 SCR2、 SCR4、 SCR6的负极 连接以及与超前组 6脉波组整流器的直流输出端的负极连接； 所述超前组三相逆 变器的超前组三相桥逆变电路由绝缘栅双极型晶体管 IGBT1、 IGBT3、 IGBT5、 IGBT4、 IGBT6禾卩 IGBT2组成，其中绝缘珊双极型晶体管 IGBT1 , IGBT3禾卩 GBT5 的集电极分别与超前组三相逆变器的直流输入端的正极连接， 超前组三相逆变器 的直流输入端的正极与超前组 6脉波组整流器的直流输出端的正极连接， 绝缘栅 双极型晶体管 IGBT4、 IGBT6和 IGBT2的发射极分别与超前组三相逆变器的直流 入 , 三 器 入 Further, the 12-pulse autotransformer phase shifting transformer T1 is a 12-pulse 30-degree autotransformer phase shifting transformer, and the lead group three-phase AC output terminals are Al, Bl, and C1; The terminals are A2, B2, C2; the advanced group controllable three-phase rectifier circuit of the pre-group 6-pulse group rectifier consists of the inductor group L1 and the unidirectional thyristor components SCR1, SCR3, SCR5, SCR4, SCR6, SCR2 and capacitor CI. The inductor group L1 is composed of an inductor L11, an inductor L12 and an inductor L13. One end of the inductor L11 is connected to the A1 terminal, and the other end of the inductor L11 is respectively connected to the anode of the unidirectional thyristor element SCR1 and the cathode of the SCR4; One end is connected to the B1 end, and the other end of the inductor L12 is respectively connected to the anode of the unidirectional thyristor element SCR3 and the cathode of the SCR6; one end of the inductor L13 is connected to the C1 end, and the other end of the inductor L13 is respectively connected to the unidirectional thyristor element. The positive pole of the SCR5 and the negative pole of the SCR2 are connected; the positive pole of the capacitor C1 is respectively connected to the negative poles of the unidirectional thyristor elements SCR1, SCR3, SCR5 and to the positive pole of the DC output end of the pulse group rectifier of the advanced group; the negative poles of the capacitor C1 are respectively versus Connecting to the negative pole of the thyristor elements SCR2, SCR4, SCR6 and the negative pole of the DC output end of the pre-group 6 pulse wave group rectifier; the lead group three-phase bridge inverter circuit of the lead group three-phase inverter is insulated by the grid Bipolar transistors IGBT1, IGBT3, IGBT5, IGBT4, IGBT6 and IGBT2, wherein the collectors of the insulated mountain bipolar transistors IGBT1, IGBT3 and GBT5 are respectively connected to the positive poles of the DC input terminals of the lead three-phase inverters, The positive pole of the DC input terminal of the lead group three-phase inverter is connected with the anode of the DC output terminal of the 6-pulse group rectifier of the lead group, and the emitters of the insulated gate bipolar transistors IGBT4, IGBT6 and IGBT2 are respectively connected with the lead group three-phase inverter. DC In, three-in
流器的直流输出端的负极连接； 绝缘栅双极型晶体管 IGBT1、 IGBT3和 GBT5的 发射极分别与绝缘栅双极型晶体管 IGBT4、 IGBT6和 IGBT2的集电极连接； 其中 绝缘栅双极型晶体管 IGBT1、 IGBT3和 GBT5的发射极还分别与超前组三相逆变 器的三个三相交流输出端连接；超前组工频隔离变压器 T2的三相交流输入端与超 前组三相逆变器的三相交流输出端连接； 超前组工频隔离变压器 T2采用 D/Y11 接法，超前组工频隔离变压器 T2与超前组主路静态开关装置之间设有由电容 C31、 C32、 C33组成的电容组 C3， 超前组工频隔离变压器 T2的三相交流输出端为 A3、 B3、 C3; 电容 C31的一端分别与电容 C33的一端和三相交流输出端 A3连接， 电 容 C31的另一端分别与电容 C32的一端和三相交流输出端 B3连接， 电容 C32的 另一端分别与电容 C33的另一端和三相交流输出端 C3连接； 超前组工频隔离变 压器 T2和电容组 C3组成超前组 LC低通滤波器， 所述超前组主路静态开关装置 由双向可控硅元件 SCR7、 SCR8和 SCR9组成， 双向可控硅元件 SCR7、 SCR8和 SCR9的一端分别与超前组工频隔离变压器 T2的三相交流输出端 A3、 B3、 C3连 接， 双向可控硅元件 SCR7、 SCR8和 SCR9的另一端分别与电源三相交流输出端 连接；滞后组 6脉波组整流器的滞后组可控三相整流电路由电感组 L2和单向可控 硅元件 SCR1 '、 SCR3'、 SCR5'、 SCR4'、 SCR6'、 SCR2'以及电容 C2组成， 其 中电感组 L2由电感 L21、 电感 L22和电感 L23组成， 电感 L21的一端与 A2端连 接， 电感 L21的另一端分别与单向可控硅元件 SCR1 '的正极、 SCR4'的负极连接; 电感 L22的一端与 B2端连接， 电感 L22的另一端分别与单向可控硅元件 SCR3' 的正极、 SCR6'的负极连接； 电感 L23的一端与 C2端连接， 电感 L23的另一端 分别与单向可控硅元件 SCR5'的正极、 SCR2'的负极连接； 电容 C2的正极分别与 单向可控硅元件 SCR1 '、 SCR3'、 SCR5'的负极连接以及与滞后组 6脉波组整流 器的直流输出端的正极连接；电容 C2的负极分别与单向可控硅元件 SCR2'、SCR4 '、 SCR6'的负极连接以及与滞后组 6脉波组整流器的直流输出端的负极连接； 所 述滞后组三相逆变器的滞后组三相桥逆变电路由绝缘栅双极型晶体管 IGBT1 '、 IGBT3'、 IGBT5'、 IGBT4'、 IGBT6'和 IGBT2'组成， 其中绝缘栅双极型晶体管 IGBT1 '、 IGBT3'和 GBT5'的集电极分别与滞后组三相逆变器的直流输入端的正 极连接， 滞后组三相逆变器的直流输入端的正极与滞后组 6脉波组整流器的直流 输出端的正极连接， 绝缘栅双极型晶体管 IGBT4'、 IGBT6'和 IGBT2'的发射极分 别与滞后组三相逆变器的直流输入端的负极连接， 滞后组三相逆变器的直流输入 端的负极与滞后组 6脉波组整流器的直流输出端的负极连接； 绝缘栅双极型晶体 T^T , α , , ππ ^ „ „ The negative terminal of the DC output of the current collector is connected; the emitters of the insulated gate bipolar transistors IGBT1, IGBT3 and GBT5 are respectively connected to the collectors of the insulated gate bipolar transistors IGBT4, IGBT6 and IGBT2; wherein the insulated gate bipolar transistor IGBT1 The emitters of IGBT3 and GBT5 are also respectively connected with the three three-phase AC output terminals of the lead group three-phase inverter; the three-phase AC input terminal of the advanced group power frequency isolation transformer T2 and the three-phase inverter of the lead group three-phase inverter The AC output terminal is connected; the advanced group power frequency isolation transformer T2 adopts the D/Y11 connection method, and the capacitor group C3 consisting of capacitors C31, C32 and C33 is provided between the advanced group power frequency isolation transformer T2 and the advanced group main circuit static switching device. The three-phase AC output terminals of the advanced power frequency isolation transformer T2 are A3, B3, C3; one end of the capacitor C31 is respectively connected with one end of the capacitor C33 and the three-phase AC output terminal A3, and the other end of the capacitor C31 is respectively connected with the capacitor C32. One end is connected to the three-phase AC output terminal B3, and the other end of the capacitor C32 is respectively connected to the other end of the capacitor C33 and the three-phase AC output terminal C3; the advanced group power frequency isolation transformer T2 and the capacitor group C3 group Forming an advanced group LC low-pass filter, the lead group main circuit static switching device is composed of a bidirectional thyristor element SCR7, SCR8 and SCR9, and one ends of the triac SCR7, SCR8 and SCR9 are respectively isolated from the advanced group power frequency The three-phase AC output terminals A3, B3 and C3 of the transformer T2 are connected, and the other ends of the triac SCR7, SCR8 and SCR9 are respectively connected with the three-phase AC output terminal of the power supply; the hysteresis group of the hysteresis group 6 pulse group rectifier is controllable The three-phase rectifier circuit is composed of an inductor group L2 and unidirectional thyristor elements SCR1 ', SCR3', SCR5', SCR4', SCR6', SCR2' and a capacitor C2, wherein the inductor group L2 is composed of an inductor L21, an inductor L22 and an inductor L23. The inductor L21 has one end connected to the A2 end, and the other end of the inductor L21 is respectively connected to the anode of the unidirectional thyristor element SCR1 ' and the cathode of the SCR 4 ′; one end of the inductor L22 is connected to the B2 end, and the other end of the inductor L22 is respectively Connected to the anode of the unidirectional thyristor element SCR3' and the cathode of the SCR6'; one end of the inductor L23 is connected to the C2 terminal, and the other end of the inductor L23 is respectively connected to the anode of the unidirectional thyristor element SCR5' and the cathode of the SCR2'; Capacitor C2 The poles are respectively connected to the negative poles of the unidirectional thyristor elements SCR1 ', SCR3', SCR5' and to the anode of the DC output of the hysteresis group 6 pulse group rectifier; the cathode of the capacitor C2 and the unidirectional thyristor element SCR2', respectively The negative connection of SCR4 ', SCR6' and the negative connection of the DC output of the 6-pulse group rectifier of the hysteresis group; the hysteresis group of the three-phase inverter of the hysteresis group is composed of an insulated gate bipolar transistor IGBT1 ', IGBT3', IGBT5', IGBT4', IGBT6' and IGBT2', wherein the collectors of the insulated gate bipolar transistors IGBT1', IGBT3' and GBT5' are respectively connected to the DC input terminals of the hysteresis group three-phase inverter Positive connection, the positive pole of the DC input of the three-phase inverter of the hysteresis group is connected to the positive pole of the DC output of the 6-pulse group rectifier of the hysteresis group, and the emitters of the insulated gate bipolar transistors IGBT4', IGBT6' and IGBT2' are respectively delayed The negative pole connection of the DC input end of the three-phase inverter, the negative pole of the DC input end of the three-phase inverter of the hysteresis group is connected with the negative pole of the DC output end of the 6-pulse group rectifier of the hysteresis group; Insulated gate bipolar crystal T ^ T , α , , ππ ^ „ „
IGBTi 、Kil3' 和 GBT5 双 晶 1不官 Kil3T4 、丄 GBT6 '和 IGBT2'的集电极连接； 其中绝缘栅双极型晶体管 IGBT1 '、 IGBT3'和 GBT5' 的发射极还分别与滞后组三相逆变器的三个三相交流输出端连接； 滞后组工频隔 离变压器 T3的三相交流输入端与滞后组三相逆变器的三相交流输出端连接；滞后 组工频隔离变压器 T3采用 D/Y11接法， 滞后组工频隔离变压器 T3与滞后组主路 静态开关装置之间设有由电容 C41、 C42、 C43组成的电容组 C4， 滞后组工频隔 离变压器 T3的三相交流输出端为 A4、 B5、 C6; 电容 C41的一端分别与电容 C43 的一端和三相交流输出端 A4连接， 电容 C41的另一端分别与电容 C42的一端和 三相交流输出端 B4连接， 电容 C42的另一端分别与电容 C43的另一端和三相交 流输出端 C4连接;滞后组工频隔离变压器 T3和电容组 C4组成滞后组 LC低通滤 波器， 所述滞后组主路静态开关装置由双向可控硅元件 SCR10、 SCR11和 SCR12 组成，双向可控硅元件 SCR10、 SCR11和 SCR12的一端分别与滞后组工频隔离变 压器 T3的三相交流输出端 A4、 B4、 C4连接， 双向可控硅元件 SCR10、 SCR11 和 SCR12的另一端分别与电源三相交流输出端连接； 所述旁路静态开关装置由双 向可控硅元件 SCR13、 SCR14和 SCR15组成， 双向可控硅元件 SCR13、 SCR14 和 SCR15的一端分别与电源三相交流输入端连接，双向可控硅元件 SCR13、SCR14 和 SCR15的另一端分别与电源三相交流输出端连接。  The IGBTi, Kil3' and GBT5 twin crystals are not connected to the collectors of Kil3T4, 丄GBT6' and IGBT2'; the emitters of the insulated gate bipolar transistors IGBT1', IGBT3' and GBT5' are also inversely opposite to the hysteresis group The three three-phase AC output terminals of the transformer are connected; the three-phase AC input terminal of the hysteresis group power frequency isolation transformer T3 is connected with the three-phase AC output terminal of the three-phase inverter of the hysteresis group; the hysteresis group power frequency isolation transformer T3 adopts D /Y11 connection method, the hysteresis group power frequency isolation transformer T3 and the hysteresis group main circuit static switching device are provided with a capacitor group C4 composed of capacitors C41, C42, C43, and a three-phase AC output terminal of the hysteresis group power frequency isolation transformer T3 A4, B5, C6; one end of the capacitor C41 is respectively connected with one end of the capacitor C43 and the three-phase AC output terminal A4, and the other end of the capacitor C41 is respectively connected with one end of the capacitor C42 and the three-phase AC output terminal B4, and the capacitor C42 is another One end is respectively connected with the other end of the capacitor C43 and the three-phase AC output terminal C4; the hysteresis group power frequency isolation transformer T3 and the capacitor group C4 form a hysteresis group LC low-pass filter, and the hysteresis group main path is static The switching device is composed of two-way thyristor components SCR10, SCR11 and SCR12, and one ends of the two-way thyristor components SCR10, SCR11 and SCR12 are respectively connected with the three-phase AC output terminals A4, B4 and C4 of the lag group power frequency isolation transformer T3, two-way. The other ends of the thyristor components SCR10, SCR11 and SCR12 are respectively connected to the three-phase AC output terminal of the power supply; the bypass static switching device is composed of the triac SCR13, SCR14 and SCR15, and the triac SCR13, SCR14 One end of the SCR 15 and the three-phase AC input end of the power supply are respectively connected, and the other ends of the two-way thyristor components SCR13, SCR14 and SCR15 are respectively connected with the three-phase AC output end of the power supply.
进一步地， 所述基于自耦移相变压器和双六脉波整流的 UPS电源还包括用于 控制逆变器输出的同步控制单元， 同步控制单元的输入端与电源三相交流输入端 连接， 同步控制单元设有两组输出端， 一组输出端与超前组三相逆变器的控制端 连接， 另一组输出端与滞后组三相逆变器的控制端连接。  Further, the UPS power supply based on the auto-transformer phase shifting transformer and the double six-pulse rectification further includes a synchronous control unit for controlling the output of the inverter, and the input end of the synchronous control unit is connected with the three-phase AC input end of the power supply, and is synchronized. The control unit is provided with two sets of outputs, one set of outputs is connected with the control end of the lead group three-phase inverter, and the other set of outputs is connected with the control end of the hysteresis group three-phase inverter.
进一步地， 电源三相交流输入端与 12脉波自耦移相变压器 T1之间设有三相 输入开关装置 CB1和熔断器组， 熔断器组由熔断器 FUSE1、 FUSE2和 FUSE3组 成， 熔断器 FUSE1、 FUSE2和 FUSE3的一端与 12脉波自耦移相变压器 T1的三 相交流输入端连接， 熔断器 FUSE1、 FUSE2和 FUSE3的另一端与三相输入开关 装置 CB1的输出端连接，三相输入开关装置 CB1的输入端与电源三相交流输入端 连接。  Further, a three-phase input switching device CB1 and a fuse group are disposed between the three-phase AC input terminal of the power supply and the 12-pulse autotransformer phase shifting transformer T1, and the fuse group is composed of fuses FUSE1, FUSE2 and FUSE3, and the fuse FUSE1 One end of FUSE2 and FUSE3 is connected to the three-phase AC input terminal of the 12-pulse autotransformer phase shifting transformer T1, and the other end of the fuses FUSE1, FUSE2 and FUSE3 is connected to the output end of the three-phase input switching device CB1, and the three-phase input switching device The input of CB1 is connected to the three-phase AC input of the power supply.
进一步地， 所述熔断器 FUSE1、 FUSE2和 FUSE3的一端与 12脉波自耦移相 变压器 T1的三相交流输入端之间设有霍尔电流传感器 HP1、 HP2和 HP3。  Further, Hall current sensors HP1, HP2 and HP3 are provided between one end of the fuses FUSE1, FUSE2 and FUSE3 and the three-phase AC input terminal of the 12-pulse autotransformer phase shifting transformer T1.
进一步地， 超前组 6脉波组整流器的直流输出端的正极与超前组三相逆变器 的直流输入端的正极之间设有霍尔电流传感器 HP5; 滞后组 6脉波组整流器的直 流输出端的正极与滞后组三相逆变器的直流输入端的正极之间设有霍尔电流传感 器 Hp 目 器 出 工 隔 Further, a Hall current sensor HP5 is provided between the anode of the DC output end of the 6-pulse group rectifier of the advanced group and the anode of the DC input of the lead group three-phase inverter; the anode of the DC output end of the 6-pulse group rectifier of the hysteresis group Hall current sensing is provided between the positive terminal of the DC input terminal of the three-phase inverter of the lag group Hp eyepiece work partition
输入端之间设有霍尔电流传感器 ΗΡ7、 ΗΡ8和 ΗΡ9, 滞后组三相逆变器的交流输 出端与超前组工频隔离变压器 Τ3 的三相交流输入端之间设有霍尔电流传感器 HP10、 HP11和 HP12; 所述电源三相交流输出端设有断路器 CB3, 流断路器 CB3 的一端分别与超前组主路静态开关装置的输出端、 滞后组主路静态开关装置的输 出端和旁路静态开关装置的输出端对应连接， 断路器 CB3的另一端与电源三相交 流输出端连接； 旁路静态开关装置的输入端与电源三相交流输入端之间设有断路 器 CB2, 电源三相交流输入端与电源三相交流输出端之间设有断路器 CB4。 Hall current sensors ΗΡ7, ΗΡ8 and ΗΡ9 are arranged between the input terminals, and a Hall current sensor HP10 is provided between the AC output terminal of the lag group three-phase inverter and the three-phase AC input terminal of the advanced group power frequency isolation transformer Τ3. , HP11 and HP12; the power supply three-phase AC output terminal is provided with a circuit breaker CB3, one end of the flow circuit breaker CB3 and the output end of the static switch device of the lead group main circuit, the output end of the static switch device of the main circuit of the hysteresis group and the side The output end of the static switch device is connected, and the other end of the circuit breaker CB3 is connected with the three-phase AC output terminal of the power supply; a circuit breaker CB2 is provided between the input end of the bypass static switch device and the three-phase AC input terminal of the power supply, and the power supply three A circuit breaker CB4 is provided between the phase AC input terminal and the power supply three-phase AC output terminal.
结合附图 2至附图 5， 12脉波自耦移相变压器 T1的输出两路三相电的相位相 互之差为 30度， 参考附图 2， 市电输入的三相电 A， B、 C与进入超前组、 滞后 组 6 脉波组整流器的三相电 （Al、 Bl、 CI ), (A2、 B2、 C2) 相位差分别为 15 度和负 15度， 其中三相电 （Al、 Bl、 CI ) 超前市电三相电 （A, B、 C) 15度， 三相电 （A2、 B2、 CI ) 滞后市电三相电 （A, B、 C) 15 度； 与超前组、 滞后组 三相逆变器的输入端连接的直流电源线相应的分为超前组直流母线和滞后组直流 三相电经过三相输入开关装置 CB1、 熔断器 FUSE1、 FUSE12、 FUSE13和检 测整流器输入电流的霍尔电流传感器 HP1、 HP2、 HP3， 送到 12脉波自耦移相变 压器 T1的三相交流输入端， 12脉波自耦移相变压器 T1将输入三相交流电源移相 为两组相位对应互差为 30度的三相交流电源： 超前组 （Al、 Bl、 CI ) 和滞后组 (A2、 B2、 C2)。 超前组 （Al、 Bl、 CI )三相交流电经过超前组可控三相整流电 路整流成直流， 经过超前组三相桥逆变电路变成交流电， 通过超前组工频隔离变 压器、 LC滤波器和超前组主路静态开关装置输出与旁路输入的交流电源同频同相 的纯净三相电。 同理滞后组 （A2、 B2、 C2)三相交流电经过滞后组可控三相整流 电路 （即滞后组 6脉波组整流器） 整流成直流， 经过滞后组三相桥逆变电路 （即 滞后组三相逆变器）变成交流电， 通过滞后组工频隔离变压器、 LC滤波器和滞后 组主路静态开关装置输出与旁路输入的交流电源同频同相的纯净三相电。 两组输 出的交流电在同步控制单元 （图 5中未画出） 的控制下， 与旁路输入的交流电源 同频同相， 幅值也相差较小， 可以可靠的并联在一起， 经过输出断路器 CB3给负 载供电。 同时， 整流输入三相电源经过充电器给蓄电池组充电。 当整流输入三相 电源不正常时，超前组可控三相整流电路和滞后组可控三相整流电路都停止工作， 蓄电池组通过二极管 Dl、 D2、 JK1给超前组直流母线供电， 通过二极管 D3、 D4、 JK2 给滞后组直流母线供电， 保证两组三相逆变器能不间断的工作， 给负载的供 , ^ Τ7 Γ| ^ , 不 干断。 卯 入二 源 正 ， 目 I」 可 二 日1¾¾ ¾ ^ 后 组可控三相整流电路均恢复正常工作， JK1 JK2断开， 充电器也恢复工作， 进入 正常工作模式。 由于本 UPS系统具有一定的冗余性， 当其中任一组的三相整流电 路或逆变电路出现故障时， 另一组都能正常工作。 如当两组三相逆变器均不能正 常工作时， 逆变输出的三相静态开关装置 SCR7— 9和 SCR10— 12会断开， 旁路 三相静态开关装置 SCR13— 15会闭合导通， 由于此前逆变输出的三相电与旁路输 入的交流电源同频、 同相， 因此 UPS可不间断的切换到旁路工作， CB2为旁路输 入断路器。 当需要维护时， 可通过 UPS的维护旁路间断给负载供电， CB4为维护 旁路的断路器； 旁路的电源输入端可以与其他供电器的输入端连接， 也可以与市 电连接。 本系统中的充电器输入输出高频隔离。 2 to FIG. 5, the phase difference between the two-phase three-phase power of the output of the 12-pulse autotransformer phase shifting transformer T1 is 30 degrees. Referring to FIG. 2, the three-phase power of the mains input A, B, C and the three-phase electricity (Al, Bl, CI) of the 6-pulse group rectifier entering the lead group and the lag group, (A2, B2, C2) have a phase difference of 15 degrees and a negative of 15 degrees, respectively, of which three-phase electricity (Al, Bl, CI) Leading the mains three-phase electricity (A, B, C) 15 degrees, three-phase electricity (A2, B2, CI) lagging the mains three-phase electricity (A, B, C) 15 degrees; with the advanced group, The DC power supply line connected to the input end of the three-phase inverter of the lag group is divided into the lead group DC bus and the lag group DC three-phase power through the three-phase input switching device CB1, the fuses FUSE1, FUSE12, FUSE13 and the detection rectifier input current The Hall current sensors HP1, HP2, HP3 are sent to the three-phase AC input terminal of the 12-pulse autotransformer phase shifting transformer T1, and the 12-pulse autotransformer phase shifting transformer T1 phase shifts the input three-phase AC power into two sets of phases. Corresponding to three-phase AC power with a mutual difference of 30 degrees: lead group (Al, Bl, CI) and hysteresis group (A2, B2, C2). The advanced group (Al, Bl, CI) three-phase AC power is rectified into DC through the advanced group controllable three-phase rectifier circuit, and the AC three-phase bridge inverter circuit becomes AC power through the advanced group power frequency isolation transformer, LC filter and The advanced group main circuit static switching device outputs the pure three-phase power of the same frequency and the same frequency as the bypass input AC power. Similarly, the lag group (A2, B2, C2) three-phase AC power is rectified into DC through the hysteresis group controllable three-phase rectifier circuit (ie, the lag group 6-pulse group rectifier), and the lag group three-phase bridge inverter circuit (ie, the lag group) The three-phase inverter becomes an alternating current, and the pure three-phase power of the same frequency and the same phase as the bypass input AC power is output through the hysteresis group power frequency isolation transformer, the LC filter and the hysteresis group main static switch device. The AC power output of the two groups is controlled by the synchronous control unit (not shown in Figure 5), and the AC power supply of the bypass input is in phase with the same frequency. The amplitudes are also small, and can be reliably connected in parallel. CB3 supplies power to the load. At the same time, the rectified input three-phase power supply charges the battery pack through the charger. When the rectified input three-phase power supply is abnormal, the lead group controllable three-phase rectification circuit and the hysteresis group controllable three-phase rectification circuit stop working, and the battery pack supplies power to the leading group DC bus through the diodes D1, D2, JK1, through the diode D3 , D4, JK2 supply the DC bus of the hysteresis group to ensure the two-phase three-phase inverter can work uninterruptedly, and supply the load. , ^ Τ7 Γ| ^ , do not dry. Into the two sources, the target I" can be two days 13⁄43⁄4 3⁄4 ^ After the group of controllable three-phase rectifier circuit is restored to normal operation, JK1 JK2 disconnected, the charger also resumes work, enters the normal working mode. Since the UPS system has certain redundancy, when any one of the three-phase rectifier circuits or the inverter circuit fails, the other group can work normally. For example, when two sets of three-phase inverters are not working properly, the three-phase static switching devices SCR7-9 and SCR10-12 of the inverter output will be disconnected, and the bypass three-phase static switching device SCR13-15 will be closed. Since the three-phase power of the inverter output and the AC power of the bypass input are in the same frequency and in phase, the UPS can be switched to the bypass operation without interruption, and CB2 is the bypass input breaker. When maintenance is required, the load can be supplied to the load through the maintenance bypass of the UPS. CB4 is the circuit breaker for maintenance bypass; the power input of the bypass can be connected to the input of other power supply or to the mains. The charger input and output in this system are isolated by high frequency.
以上仅是本申请的较佳实施例， 在此基础上的等同技术方案仍落入申请保护 范围。  The above is only a preferred embodiment of the present application, and the equivalent technical solutions based on this application still fall within the scope of application protection.

Claims

WO 2013/149458 , 一 _ , , ,、 PCT/CN2012/082208 权 利 要 求 书 WO 2013/149458, _, , ,, PCT/CN2012/082208 Claims
1. 基于自耦移相变压器和双六脉波整流的 UPS 电源， 其特征在于： 其包括电源 三相交流输入端、 电源三相交流输出端、 12脉波自耦移相变压器 Tl、 两路并 联连接的输出装置、 储能装置、 旁路静态开关装置和充电器； 12 脉波自耦移 相变压器 T1的三相交流输入端与电源三相交流输入端连接， 12脉波自耦移相 变压器 T1设有两组三相交流输出端， 分别为超前组三相交流输出端和滞后组 三相交流输出端， 其中一路输出装置包括依次连接的超前组 6脉波整流器、超 前组三相逆变器、 超前组工频隔离变压器 Τ2以及超前组主路静态开关装置； 另一路输出装置包括依次连接的滞后组 6脉波整流器、滞后组三相逆变器、滞 后组工频隔离变压器 Τ3以及滞后组主路静态开关装置； 所述超前组三相交流 输出端与超前组 6脉波整流器的三相交流输入端连接，滞后组三相交流输出端 与滞后组 6脉波整流器的三相交流输入端连接；超前组主路静态开关装置的三 相交流输出端和滞后组主路静态开关装置的三相交流输出端分别与电源三相 交流输出端连接，旁路静态开关装置的三相交流输出端亦与电源三相交流输出 端连接； 所述储能装置设有超前组输出端和滞后组输出端， 超前组输出端与超 前组三相逆变器的直流输入端连接，滞后组输出端与滞后组三相逆变器的直流 输入端连接； 储能装置的输入端与充电器的直流输出端连接， 充电器的三相交 流端与电源三相交流输入端连接，旁路静态开关装置的三相交流输入端亦与电 源三相交流输入端连接。 1. UPS power supply based on auto-transformer phase shifting transformer and double six-pulse rectification, characterized in that it comprises: three-phase AC input terminal of power supply, three-phase AC output terminal of power supply, 12-pulse auto-coupled phase-shifting transformer Tl, two-way Parallel connection of output device, energy storage device, bypass static switch device and charger; 12 pulse wave auto-transformation phase shift transformer T1 three-phase AC input terminal connected with power supply three-phase AC input terminal, 12-pulse auto-coupled phase shift The transformer T1 is provided with two sets of three-phase AC output terminals, which are respectively a front three-phase AC output end and a hysteresis group three-phase AC output end, wherein one of the output devices includes a pre-group 6-pulse rectifier connected in series, and a lead group three-phase inverse Transformer, advanced group power frequency isolation transformer Τ2 and advanced group main circuit static switching device; the other output device includes lag group 6 pulse rectifier, lag group three-phase inverter, lag group power frequency isolation transformer Τ3 and Hysteresis group main road static switching device; the leading group three-phase AC output terminal is connected with the three-phase AC input end of the lead group 6 pulse wave rectifier, and the hysteresis group The phase AC output terminal is connected with the three-phase AC input terminal of the hysteresis group 6 pulse wave rectifier; the three-phase AC output terminal of the static switch device of the main group and the three-phase AC output terminal of the static switch device of the main circuit of the hysteresis group respectively and the power supply three The phase AC output terminal is connected, and the three-phase AC output terminal of the bypass static switch device is also connected with the power three-phase AC output terminal; the energy storage device is provided with an advanced group output terminal and a hysteresis group output terminal, and the advanced group output terminal and the advanced group The DC input terminal of the three-phase inverter is connected, and the output of the hysteresis group is connected with the DC input terminal of the three-phase inverter of the hysteresis group; the input end of the energy storage device is connected with the DC output terminal of the charger, and the three phases of the charger The AC end is connected to the three-phase AC input end of the power supply, and the three-phase AC input end of the bypass static switch device is also connected to the three-phase AC input end of the power supply.
2. 根据权利要求 1所述的基于自耦移相变压器和双六脉波整流的 UPS电源， 其 特征在于： 12脉波自耦移相变压器 T1输出到上述并联两路的输出装置的三相 交流电的相互相位差为 30度。  2. The UPS power supply based on an auto-transformer phase shifting transformer and a double six-pulse rectification according to claim 1, wherein: 12-pulse auto-transformer phase shifting transformer T1 outputs three-phase to the parallel two-way output device. The mutual phase difference of the alternating current is 30 degrees.
3. 根据权利要求 1所述的基于自耦移相变压器和双六脉波整流的 UPS电源， 其 特征在于：所述储能装置包括蓄电池组和两个用于电流定向流动的定向耦合单 元，一个定向耦合单元的两个输出端分别与超前组三相逆变器的输入端的正极 和滞后组三相逆变器的输入端的正极连接，且该定向耦合单元的输入端与蓄电 池组的正极连接；另一个定向耦合单元的两个输出端分别与超前组三相逆变器 的输入端的负极和滞后组三相逆变器的输入端的负极连接，且该定向耦合单元 的输入端与蓄电池组的负极连接； 所述充电器的直流输出端与蓄电池组连接； 超前组 6脉波组整流器的输出电压和滞后组 6脉波组整流器的输出电压均高于 所述蓄电池组的电压。 3. The UPS power supply based on an autotransformer and a dual six-pulse rectification according to claim 1, wherein the energy storage device comprises a battery pack and two directional coupling units for current directed flow. The two outputs of a directional coupling unit are respectively connected to the anode of the input of the lead three-phase inverter and the anode of the input of the lag group three-phase inverter, and the input of the directional coupling unit is connected to the anode of the battery pack The two outputs of the other directional coupling unit are respectively connected to the negative pole of the input end of the lead three-phase inverter and the negative pole of the input end of the lag group three-phase inverter, and the input end of the directional coupling unit and the battery pack The negative pole is connected; the DC output end of the charger is connected to the battery pack; the output voltage of the lead group 6 pulse group rectifier and the output voltage of the hysteresis group 6 pulse group rectifier are higher than the voltage of the battery pack.
4. 根据权利要求 3所述的基于自耦移相变压器和双六脉波整流的 UPS电源， 其 特征在于： 所述定向耦合单元包括两个二极管， 所述一个定向耦合单元的两个 二极管的正极分别与超前组三相逆变器的直流输入端的正极和滞后组三相逆 变器的直流输入端的正极连接，且所述一个定向耦合单元的两个二极管的负极 均与蓄电池组的正极连接；所述另一个定向耦合单元的两个二极管的负极分别 与超前组三相逆变器的直流输入端的负极和滞后组三相逆变器的直流输入端 的负极连接，且所述另一个定向耦合单元的两个二极管的正极分别与蓄电池组 的负极连接。 4. The UPS power supply based on an autotransformer phase shifting transformer and a dual six-pulse rectification according to claim 3, wherein: said directional coupling unit comprises two diodes, and said two directional coupling units have two diodes. The positive poles are respectively connected to the anodes of the DC input terminals of the lead group three-phase inverter and the anodes of the DC input terminals of the lag group three-phase inverter, and the cathodes of the two diodes of the one directional coupling unit are connected to the anode of the battery pack. The negative poles of the two diodes of the other directional coupling unit are respectively connected to the negative pole of the DC input terminal of the lead group three-phase inverter and the cathode of the DC input end of the lag group three-phase inverter, and the other directional coupling The anodes of the two diodes of the unit are respectively connected to the cathode of the battery pack.
5. 根据权利要求 4所述的基于自耦移相变压器和双六脉波整流的 UPS电源， 其 特征在于： 所述定向耦合单元还包括一个开关组， 开关组包括两个开关装置， 两个开关装置分别与定向耦合单元的两个二极管并联连接。  5. The UPS power supply based on an autotransformer phase shifting transformer and a double six-pulse rectification according to claim 4, wherein: the directional coupling unit further comprises a switch group, and the switch group comprises two switch devices, two The switching devices are respectively connected in parallel with the two diodes of the directional coupling unit.
6. 根据权利要求 4所述的基于自耦移相变压器和双六脉波整流的 UPS电源， 其 特征在于： 所述储能装置还包括接触器 JK1、 JK2, 分别与超前组三相逆变器 的直流输入端的正极和负极连接的两个二极管 Dl、 D2为超前组二极管， 分别 与滞后组三相逆变器的直流输入端的正极和负极连接的两个二极管 D3、 D4为 滞后组二极管； 超前组二极管的两个二极管 Dl、 D2分别并联接触器 JK1的主 触头， 滞后组二极管的两个二极管 D3、 D4分别并联接触器 JK2的主触头。 6. The UPS power supply based on an autotransformer phase shifting transformer and a double six-pulse rectification according to claim 4, wherein: the energy storage device further comprises contactors JK1 and JK2, respectively, and a three-phase inverter of the advanced group. The two diodes D1 and D2 connected to the positive and negative terminals of the DC input end of the device are lead group diodes, and the two diodes D3 and D4 respectively connected to the positive and negative terminals of the DC input end of the three-phase inverter of the hysteresis group are hysteresis group diodes; The two diodes D1 and D2 of the lead group diode are respectively connected to the main contacts of the contactor JK1, and the two diodes D3 and D4 of the hysteresis group diode are respectively connected to the main contacts of the contactor JK2.
7. 根据权利要求 6所述的基于自耦移相变压器和双六脉波整流的 UPS电源， 其 特征在于： 所述 12脉波自耦移相变压器 T1为 12脉波 30度自耦移相变压器， 所述超前组三相交流输出端为 Al、 Bl、 C1 ; 所述滞后组三相交流输出端为 A2、 B2、 C2; 超前组 6脉波组整流器的超前组可控三相整流电路由电感组 LI 和单向可控硅元件 SCR1、 SCR3、 SCR5、 SCR4、 SCR6、 SCR2 以及电容 CI 组成， 其中电感组 LI由电感 Lll、 电感 L12和电感 L13组成， 电感 L11的一 端与 A1端连接，电感 L11的另一端分别与单向可控硅元件 SCR1的正极、 SCR4 的负极连接； 电感 L12的一端与 B1端连接， 电感 L12的另一端分别与单向可 控硅元件 SCR3的正极、 SCR6的负极连接； 电感 L13的一端与 C1端连接， 电感 L13的另一端分别与单向可控硅元件 SCR5的正极、 SCR2的负极连接； 电容 C1 的正极分别与单向可控硅元件 SCR1、 SCR3、 SCR5的负极连接以及 与超前组 6脉波组整流器的直流输出端的正极连接； 电容 C1的负极分别与单 向可控硅元件 SCR2、 SCR4、 SCR6的负极连接以及与超前组 6脉波组整流器 的直流输出端的负极连接；所述超前组三相逆变器的超前组三相桥逆变电路由 绝缘栅双极型晶体管 IGBT1、 IGBT3, IGBT5, IGBT4, IGBT6禾卩 IGBT2组成， 其中绝缘栅双极型晶体管 IGBT1、IGBT3和 GBT5的集电极分别与超前组三相 逆变器的直流输入端的正极连接，超前组三相逆变器的直流输入端的正极与超 前组 6脉波组整流器的直流输出端的正极连接， 绝缘栅双极型晶体管 IGBT4、 IGBT6和 IGBT2的发射极分别与超前组三相逆变器的直流输入端的负极连接， 超前组三相逆变器的直流输入端的负极与超前组 6 脉波组整流器的直流输出 端的负极连接； 绝缘栅双极型晶体管 IGBT1、 IGBT3和 GBT5的发射极分别与 绝缘栅双极型晶体管 IGBT4、 IGBT6禾卩 IGBT2的集电极连接； 其中绝缘栅双 极型晶体管 IGBT1、IGBT3和 GBT5的发射极还分别与超前组三相逆变器的三 个三相交流输出端连接； 超前组工频隔离变压器 T2的三相交流输入端与超前 组三相逆变器的三相交流输出端连接； 超前组工频隔离变压器 T2采用 D/Y11 接法， 超前组工频隔离变压器 T2与超前组主路静态开关装置之间设有由电容 C31、 C32、 C33组成的电容组 C3, 超前组工频隔离变压器 T2的三相交流输 出端为 A3、 B3、 C3; 电容 C31的一端分别与电容 C33的一端和三相交流输出 端 A3连接， 电容 C31的另一端分别与电容 C32的一端和三相交流输出端 B3 连接，电容 C32的另一端分别与电容 C33的另一端和三相交流输出端 C3连接; 超前组工频隔离变压器 T2和电容组 C3组成超前组 LC低通滤波器，所述超前 组主路静态开关装置由双向可控硅元件 SCR7、 SCR8和 SCR9组成，双向可控 硅元件 SCR7、 SCR8和 SCR9的一端分别与超前组工频隔离变压器 T2的三相 交流输出端 A3、 B3、 C3连接， 双向可控硅元件 SCR7、 SCR8和 SCR9的另一 端分别与电源三相交流输出端连接；滞后组 6脉波组整流器的滞后组可控三相 整流电路由电感组 L2和单向可控硅元件 SCR1 '、 SCR3'、 SCR5'、 SCR4'、 SCR6'、 SCR2'以及电容 C2组成， 其中电感组 L2由电感 L21、 电感 L22和电 感 L23组成， 电感 L21的一端与 A2端连接， 电感 L21的另一端分别与单向可 控硅元件 SCR1 '的正极、 SCR4'的负极连接； 电感 L22的一端与 B2端连接， 电感 L22的另一端分别与单向可控硅元件 SCR3'的正极、 SCR6'的负极连接； 电感 L23的一端与 C2端连接，电感 L23的另一端分别与单向可控硅元件 SCR5 '的正极、 SCR2'的负极连接； 电容 C2的正极分别与单向可控硅元件 SCR1 '、 SCR3'、 SCR5'的负极连接以及与滞后组 6脉波组整流器的直流输出端的正极 连接； 电容 C2的负极分别与单向可控硅元件 SCR2'、 SCR4'、 SCR6'的负极 连接以及与滞后组 6脉波组整流器的直流输出端的负极连接；所述滞后组三相 逆变器的滞后组三相桥逆变电路由绝缘栅双极型晶体管 IGBT1 '、 IGBT3'、 IGBT5'、 IGBT4'、 IGBT6'和 IGBT2'组成， 其中绝缘栅双极型晶体管 IGBT1 '、 IGBT3'和 GBT5'的集电极分别与滞后组三相逆变器的直流输入端的正极连 接，滞后组三相逆变器的直流输入端的正极与滞后组 6脉波组整流器的直流输 出端的正极连接， 绝缘栅双极型晶体管 IGBT4'、 IGBT6'和 IGBT2'的发射极 分别与滞后组三相逆变器的直流输入端的负极连接，滞后组三相逆变器的直流 输入端的负极与滞后组 6脉波组整流器的直流输出端的负极连接；绝缘栅双极 型晶体管 IGBT1 '、 IGBT3 '和 GBT5 '的发射极分别与绝缘栅双极型晶体管 IGBT4'、 IGBT6'和 IGBT2'的集电极连接；其中绝缘栅双极型晶体管 IGBT1 '、 IGBT3'和 GBT5'的发射极还分别与滞后组三相逆变器的三个三相交流输出端 连接； 滞后组工频隔离变压器 T3的三相交流输入端与滞后组三相逆变器的三 相交流输出端连接； 滞后组工频隔离变压器 T3采用 D/Y11接法， 滞后组工频 隔离变压器 T3 与滞后组主路静态开关装置之间设有由电容 C41、 C42、 C43 组成的电容组 C4， 滞后组工频隔离变压器 T3的三相交流输出端为 A4、 B5、 C6; 电容 C41的一端分别与电容 C43的一端和三相交流输出端 A4连接， 电容 C41的另一端分别与电容 C42的一端和三相交流输出端 B4连接， 电容 C42的 另一端分别与电容 C43的另一端和三相交流输出端 C4连接； 滞后组工频隔离 变压器 T3和电容组 C4组成滞后组 LC低通滤波器，所述滞后组主路静态开关 装置由双向可控硅元件 SCR10、SCR11和 SCR12组成，双向可控硅元件 SCR10、 SCR11和 SCR12的一端分别与滞后组工频隔离变压器 T3的三相交流输出端 A4、 B4、 C4连接， 双向可控硅元件 SCR10、 SCR11和 SCR12的另一端分别 与电源三相交流输出端连接； 所述旁路静态开关装置由双向可控硅元件 SCR13, SCR14和 SCR15组成， 双向可控硅元件 SCR13、 SCR14和 SCR15的 一端分别与电源三相交流输入端连接， 双向可控硅元件 SCR13、 SCR14 和 SCR15的另一端分别与电源三相交流输出端连接。 7. The UPS power supply based on an autotransformer phase shifting transformer and a double six-pulse rectification according to claim 6, wherein: the 12-pulse auto-coupled phase shifting transformer T1 is a 12-pulse 30-degree autotransformer phase shifting. Transformer, the lead group three-phase AC output terminal is Al, Bl, C1; the lag group three-phase AC output terminal is A2, B2, C2; the advanced group 6 pulse wave group rectifier advanced group controllable three-phase rectifier circuit The inductor group LI and the unidirectional thyristor components SCR1, SCR3, SCR5, SCR4, SCR6, SCR2 and the capacitor CI are formed, wherein the inductor group LI is composed of an inductor L11, an inductor L12 and an inductor L13, and one end of the inductor L11 is connected with the A1 terminal. The other end of the inductor L11 is respectively connected to the anode of the unidirectional thyristor element SCR1 and the cathode of the SCR4; one end of the inductor L12 is connected to the B1 terminal, and the other end of the inductor L12 is respectively connected to the anode of the unidirectional thyristor element SCR3, SCR6 The negative pole is connected; one end of the inductor L13 is connected to the C1 end, and the other end of the inductor L13 is respectively connected to the anode of the unidirectional thyristor element SCR5 and the cathode of the SCR2; the anode of the capacitor C1 and the unidirectional thyristor element SCR1, SCR3, respectively , the negative pole of SCR5 Connected to the positive terminal of the DC output of the 6-pulse group rectifier of the lead group; the cathode of the capacitor C1 is connected to the negative terminals of the unidirectional thyristor elements SCR2, SCR4, and SCR6, respectively, and to the DC output of the 6-pulse group rectifier of the lead group a negative pole connection; the leading group three-phase bridge inverter circuit of the advanced group three-phase inverter is composed of insulated gate bipolar transistors IGBT1, IGBT3, IGBT5, IGBT4, IGBT6 and IGBT2, The collectors of the insulated gate bipolar transistors IGBT1, IGBT3 and GBT5 are respectively connected with the positive poles of the DC input terminals of the lead group three-phase inverters, and the positive poles of the DC input terminals of the lead group three-phase inverters and the lead group of the lead group 6 pulses The positive pole connection of the DC output of the rectifier, the emitters of the insulated gate bipolar transistors IGBT4, IGBT6 and IGBT2 are respectively connected to the negative pole of the DC input terminal of the lead group three-phase inverter, and the anode of the DC input end of the lead three-phase inverter Connected to the negative terminal of the DC output of the 6-pulse group rectifier of the lead group; the emitters of the insulated gate bipolar transistors IGBT1, IGBT3 and GBT5 are respectively connected to the collectors of the insulated gate bipolar transistors IGBT4, IGBT6 and IGBT2; The emitters of the gate bipolar transistors IGBT1, IGBT3 and GBT5 are also respectively connected with the three three-phase AC output terminals of the advanced three-phase inverter; the three-phase AC input terminal of the advanced group power frequency isolation transformer T2 and the advanced group three The three-phase AC output terminal of the phase inverter is connected; the advanced power frequency isolation transformer T2 adopts the D/Y11 connection method, and the advanced group power frequency isolation transformer T2 and the advanced A capacitor group C3 composed of capacitors C31, C32, and C33 is disposed between the static switch devices of the group main circuit, and the three-phase AC output terminals of the advanced group power frequency isolation transformer T2 are A3, B3, and C3; one end of the capacitor C31 and the capacitor respectively One end of the C33 is connected to the three-phase AC output terminal A3, and the other end of the capacitor C31 is respectively connected to one end of the capacitor C32 and the three-phase AC output terminal B3, and the other end of the capacitor C32 is respectively connected to the other end of the capacitor C33 and the three-phase AC output terminal. The C3 connection; the advanced group power frequency isolation transformer T2 and the capacitor group C3 form a leading group LC low-pass filter, the lead group main circuit static switching device is composed of the triac SCR7, SCR8 and SCR9, the bidirectional thyristor element One ends of SCR7, SCR8 and SCR9 are respectively connected with the three-phase AC output terminals A3, B3 and C3 of the advanced power frequency isolation transformer T2, and the other ends of the triac SCR7, SCR8 and SCR9 are respectively connected with the three-phase AC output terminal of the power supply. Connection; hysteresis group 6-pulse group rectifier lag group controllable three-phase rectifier circuit consists of inductor group L2 and unidirectional thyristor components SCR1 ', SCR3', SCR5', SCR4', SCR6', SCR2' and capacitor C2 , its The inductor group L2 is composed of an inductor L21, an inductor L22 and an inductor L23. One end of the inductor L21 is connected to the A2 terminal, and the other end of the inductor L21 is respectively connected to the anode of the unidirectional thyristor element SCR1' and the cathode of the SCR4'; One end is connected to the B2 end, and the other end of the inductor L22 is respectively connected to the anode of the unidirectional thyristor element SCR3' and the cathode of the SCR6'; one end of the inductor L23 is connected to the C2 end, and the other end of the inductor L23 is unidirectionally controllable The positive electrode of the silicon element SCR5 ', the negative electrode of the SCR2' is connected; the positive electrode of the capacitor C2 is respectively connected to the negative electrode of the unidirectional thyristor elements SCR1 ', SCR3', SCR5' and the positive electrode of the DC output terminal of the hysteresis group 6 pulse wave group rectifier Connecting; the negative pole of the capacitor C2 is respectively connected to the negative poles of the unidirectional thyristor elements SCR2', SCR4', SCR6' and to the negative pole of the DC output end of the hysteresis group 6 pulse group rectifier; the hysteresis group three-phase inverter The hysteresis group three-phase bridge inverter circuit is composed of insulated gate bipolar transistors IGBT1 ', IGBT3', IGBT5', IGBT4', IGBT6' and IGBT2', wherein the insulated gate bipolar transistor IGBT1 The collectors of ', IGBT3' and GBT5' are respectively connected to the positive terminal of the DC input terminal of the lag group three-phase inverter, the positive terminal of the DC input terminal of the lag group three-phase inverter and the DC output terminal of the hysteresis group 6 pulse group rectifier The positive pole is connected, the emitters of the insulated gate bipolar transistors IGBT4', IGBT6' and IGBT2' are respectively connected to the negative pole of the DC input terminal of the lag group three-phase inverter, and the negative pole and hysteresis of the DC input terminal of the lag group three-phase inverter The negative pole connection of the DC output of the group 6 pulse wave group rectifier; the emitters of the insulated gate bipolar transistors IGBT1 ', IGBT3' and GBT5' are respectively connected to the collectors of the insulated gate bipolar transistors IGBT4', IGBT6' and IGBT2' The emitters of the insulated gate bipolar transistors IGBT1 ', IGBT3' and GBT5' are also respectively connected to the three three-phase AC output terminals of the hysteresis group three-phase inverter; the three-phase AC of the hysteresis group power frequency isolation transformer T3 The input terminal is connected with the three-phase AC output terminal of the three-phase inverter of the lag group; the lag group power frequency isolation transformer T3 adopts the D/Y11 connection method, the hysteresis group power frequency isolation transformer T3 and the hysteresis group main circuit static switch device There is a capacitor group C4 composed of capacitors C41, C42, C43, and the three-phase AC output terminals of the hysteresis group power frequency isolation transformer T3 are A4, B5, C6; one end of the capacitor C41 and one end of the capacitor C43 and three The AC output terminal A4 is connected, and the other end of the capacitor C41 is respectively connected to one end of the capacitor C42 and the three-phase AC output terminal B4, and the other end of the capacitor C42 is respectively connected to the other end of the capacitor C43 and the three-phase AC output terminal C4; The power frequency isolation transformer T3 and the capacitor group C4 form a hysteresis group LC low-pass filter, and the hysteresis group main-path static switch device is composed of bidirectional thyristor elements SCR10, SCR11 and SCR12, and the triac SCR10, SCR11 and SCR12 One end is respectively connected with the three-phase AC output terminals A4, B4, C4 of the power-frequency isolation transformer T3 of the lag group, and the other ends of the triac SCR10, SCR11 and SCR12 are respectively connected with the three-phase AC output terminal of the power supply; The static switch device is composed of two-way thyristor components SCR13, SCR14 and SCR15. One ends of the two-way thyristor components SCR13, SCR14 and SCR15 are respectively connected with the three-phase AC input terminal of the power supply. The other ends of the silicon control elements SCR13, SCR14 and SCR15 are respectively connected to the three-phase AC output of the power supply.
8. 根据权利要求 7所述的基于自耦移相变压器和双六脉波整流的 UPS电源， 其 特征在于：电源三相交流输入端与 12脉波自耦移相变压器 T1之间设有三相输 入开关装置 CB1和熔断器组， 熔断器组由熔断器 FUSE1、 FUSE2和 FUSE3 组成， 熔断器 FUSE1、 FUSE2和 FUSE3的一端与 12脉波自耦移相变压器 T1 的三相交流输入端连接， 熔断器 FUSE1、 FUSE2和 FUSE3的另一端与三相输 入开关装置 CB1的输出端连接， 三相输入开关装置 CB1的输入端与电源三相 交流输入端连接； 所述熔断器 FUSE1、 FUSE2和 FUSE3的一端设有霍尔电流 传感器 HP1、 HP2禾卩 HP3， 且熔断器 FUSE1、 FUSE2禾卩 FUSE3的一端分别通 过霍尔电流传感器 HP1、 HP2和 HP3与 12脉波自耦移相变压器 T1的三相交 流输入端连接。 8. The UPS power supply based on an autotransformer phase shifting transformer and a double six-pulse rectification according to claim 7, wherein a three-phase AC input terminal and a 12-pulse autotransformer phase shifting transformer T1 are provided with three phases. Input switch device CB1 and fuse group, the fuse group is composed of fuses FUSE1, FUSE2 and FUSE3, one end of fuses FUSE1, FUSE2 and FUSE3 is connected with the three-phase AC input terminal of 12-pulse auto-transformer phase-shifting transformer T1, and blown The other ends of the FUSE1, FUSE2 and FUSE3 are connected to the output of the three-phase input switching device CB1, and the input of the three-phase input switching device CB1 is connected to the three-phase AC input of the power supply; one end of the fuses FUSE1, FUSE2 and FUSE3 Hall current sensors HP1, HP2 and HP3 are provided, and one ends of the fuses FUSE1, FUSE2 and FUSE3 are respectively passed through the three-phase intersection of the Hall current sensors HP1, HP2 and HP3 and the 12-pulse autotransformer phase shifting transformer T1. The stream input is connected.
9. 根据权利要求 8所述的基于自耦移相变压器和双六脉波整流的 UPS电源， 其 特征在于： 所述基于自耦移相变压器和双六脉波整流的 UPS 电源还包括用于 控制逆变器输出的同步控制单元， 同步控制单元的输入端与电源三相交流输入 端连接， 同步控制单元设有两组输出端， 一组输出端与超前组三相逆变器的控 制端连接， 另一组输出端与滞后组三相逆变器的控制端连接。  9. The UPS power supply based on an auto-transformer phase shifting transformer and a dual six-pulse rectification according to claim 8, wherein: the UPS power supply based on the auto-transformer phase shifting transformer and the double six-pulse rectification further includes A synchronous control unit for controlling the output of the inverter, the input end of the synchronous control unit is connected with the three-phase AC input end of the power supply, and the synchronous control unit is provided with two sets of output ends, one set of output ends and the control end of the lead group three-phase inverter Connected, the other set of outputs is connected to the control terminal of the hysteresis group three-phase inverter.
10.根据权利要求 9所述的基于自耦移相变压器和双六脉波整流的 UPS电源， 其 特征在于：超前组 6脉波组整流器的直流输出端的正极与超前组三相逆变器的 直流输入端的正极之间设有霍尔电流传感器 HP5;滞后组 6脉波组整流器的直 流输出端的正极与滞后组三相逆变器的直流输入端的正极之间设有霍尔电流 传感器 HP6; 超前组三相逆变器的交流输出端与超前组工频隔离变压器 T2的 三相交流输入端之间设有霍尔电流传感器 HP7、 HP8和 HP9, 滞后组三相逆变 器的交流输出端与超前组工频隔离变压器 T3的三相交流输入端之间设有霍尔 电流传感器 HP10、 HP11和 HP12; 所述电源三相交流输出端设有断路器 CB3, 断路器 CB3 的一端分别与超前组主路静态开关装置的输出端、 滞后组主路静 态开关装置的输出端和旁路静态开关装置的输出端对应连接， 断路器 CB3 的 另一端与电源三相交流输出端连接；旁路静态开关装置的输入端与电源三相交 流输入端之间设有断路器 CB2,电源三相交流输入端与电源三相交流输出端之 间设有断路器 CB4。  10 . The UPS power supply based on an auto-transformer phase shifting transformer and a double six-pulse rectification according to claim 9 , wherein: the positive pole of the DC output end of the 6-pulse set rectifier of the lead group and the lead-group three-phase inverter of the lead group. A Hall current sensor HP5 is arranged between the positive poles of the DC input terminal; a positive current output terminal of the hysteresis group 6 pulse wave group rectifier and a positive current input terminal of the DC input end of the hysteresis group three-phase inverter are provided with a Hall current sensor HP6; There are Hall current sensors HP7, HP8 and HP9 between the AC output of the three-phase inverter and the three-phase AC input of the power-frequency isolation transformer T2. The AC output of the three-phase inverter of the hysteresis group is Hall current sensors HP10, HP11 and HP12 are arranged between the three-phase AC input terminals of the advanced power frequency isolation transformer T3; the three-phase AC output terminal of the power supply is provided with a circuit breaker CB3, and one end of the circuit breaker CB3 is respectively connected with the advanced group The output end of the main static switch device, the output end of the hysteresis main circuit static switch device and the output end of the bypass static switch device are connected, and the other end of the circuit breaker CB3 is The source three-phase AC output terminal is connected; a circuit breaker CB2 is arranged between the input end of the bypass static switch device and the three-phase AC input end of the power source, and a circuit breaker is arranged between the three-phase AC input end of the power source and the three-phase AC output end of the power source. CB4.
PCT/CN2012/082208 2012-04-01 2012-09-27 Ups power source based on phase-shifting auto-transformer and dual 6-pulse rectifiers WO2013149458A1 (en)

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