CN109388166A - Auto compensating type AC voltage regulator control method - Google Patents

Auto compensating type AC voltage regulator control method Download PDF

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Publication number
CN109388166A
CN109388166A CN201811356005.2A CN201811356005A CN109388166A CN 109388166 A CN109388166 A CN 109388166A CN 201811356005 A CN201811356005 A CN 201811356005A CN 109388166 A CN109388166 A CN 109388166A
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China
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voltage
signal
control
control signal
input
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CN201811356005.2A
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CN109388166B (en
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曾红兵
凌云
肖伸平
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Dongguan City King Power Electronic Co ltd
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Hunan University of Technology
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
    • G05F1/16—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices
    • G05F1/20—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only

Abstract

A kind of auto compensating type AC voltage regulator control method, AC supply voltage is divided into multiple voltage class sections, by one or more voltage superposition in thyristor switch group selection auto-transformer output voltage, the magnet exciting coil voltage as compensator transformer carries out voltage compensation.Whether the Trig control signal of control thyristor switch group is correctly differentiated, when correct, opens the working power of trigger unit；When mistake, the working power of trigger unit is cut off, and controls the input side supply voltage of disconnection auto-transformer to protect to thyristor switch group.The pressure stabilizing control method is while realizing mutual lock control; also thyristor switch is protected to whether control circuit logic error occurs; the protection for course of work exception is effectively strengthened, keeps the course of work of AC voltage-stabilizing more stable, reliable.

Description

Auto compensating type AC voltage regulator control method
Technical field
The present invention relates to power technique fields, especially a kind of auto compensating type AC voltage regulator control method.
Background technique
Existing compensation type ac voltage stabilizer, its advantage is that voltage stabilized range is wide, waveform is almost without distortion, overall efficiency Height, workload-adaptability are strong.Its principle is the height situation according to input voltage, automatically controls armature winding on compensator transformer The switching of different winding coils, using the no-load voltage ratio relationship of primary side Working winding and secondary windings, or by adjusting primary around The alive mode of institute, provides the voltage compensation of two-way multi gear, to realize the purpose of voltage-regulation voltage-stabilization in group.
The shortcoming of existing compensation type ac voltage stabilizer is: being changed using the movement of motor control carbon brush to compensation transformation When device magnet exciting coil applies different voltages, carbon brush is prone to wear, and is often broken down.Using electronic switch switching by the way of come into On the switching of the different winding coils of armature winding on row compensator transformer, or adjustment armature winding when institute's making alive, electronics Being delayed to turn off for switch be easy to cause power supply short circuit failure；Using the program mode (PM) control electronic switch switching of single-chip microcontroller, PLC etc. When, the problems such as program runs fast, crashes, will also result in voltage-stablizer failure, or cause power supply short circuit because of control logic mistake therefore Barrier.
Summary of the invention
In order to solve the problems of existing compensation type ac voltage stabilizer, the present invention provides a kind of friendships of auto compensating type Flow voltage-stablizer control method, comprising:
The voltage of AC supply voltage waving interval range is divided into multiple voltage class sections to compensate control；By 0 in thyristor switch group in the multiple output voltages of on-off assembled state control selections auto-transformer of thyristor, or It is that 1 or multiple voltage superpositions are realized corresponding with voltage class section as the magnet exciting coil voltage of compensator transformer Voltage compensation state；The corresponding voltage compensation state in each voltage class section of AC supply voltage；Thyristor switch The on-off assembled state of thyristor issues trigger pulse control by trigger unit by Trig control signal in group.
Whether Trig control signal is correctly differentiated；When Trig control signal mistake, control disconnects self coupling transformation The input side supply voltage of device, thyristor switch group enter guard mode；After thyristor switch group enters guard mode, triggering control When signal processed reverts to correct signal, the automatic input side supply voltage for restoring auto-transformer exits thyristor bridge switching group Guard mode.
AC supply voltage is sampled to obtain voltage class encoded radio, multiple effective volumes in voltage class encoded radio Code value and multiple voltage class sections correspond；The voltage class section of AC supply voltage, which changes, causes voltage class to encode When value changes, change the on-off assembled state of thyristor in thyristor switch group accordingly to change the compensation work of compensator transformer State；When changing the on-off assembled state of thyristor in thyristor switch group, between its successive 2 kinds of on-off assembled state, dimension It holds not trigger region time, all thyristors in cutoff thyristor switching group.
The trigger region time is not realized by not trigger region control signal for the maintenance one；Trigger region control signal does not exist for control Voltage class encoded radio exports a pulse after changing；Trigger region control signal is not effective during exporting pulse, It is invalid during non-output pulse；When trigger region control signal is not effective, not trigger region time is maintained.Further, The spaced time of pulse is chosen in 10ms between 30ms in the not trigger region control signal.
The Trig control signal for controlling thyristor switch group is generated by the voltage class encoded radio control postponed；The electricity of delay The pressure grade coding value signal change moment is later than after voltage class encoded radio changes pulse in not trigger region control signal The forward position moment, and after changing earlier than voltage class encoded radio not in trigger region control signal pulse it is rear along the moment.
In the Trig control signal for controlling thyristor switch group, the effective Trig control signal of M+1 group is shared, wherein M group is used In realizing the control with the one-to-one M compensation work state in M voltage class section of AC supply voltage, 1 group for closing All thyristors in disconnected thyristor switch group.M is the integer more than or equal to 2.
Effective Trig control signal for all thyristors in cutoff thyristor switching group is controlled in not trigger region to be believed Number effectively when export；For realizing the M group effectively triggering control letter of M voltage class section compensation control of AC supply voltage Number, it is exported when not trigger region controls invalidating signal and voltage class encoded radio is 1 in M efficient coding value.
Voltage class encoded radio is obtained to be realized by analog-to-digital conversion coding unit；Analog-to-digital conversion coding unit is to AC power source electricity Pressure carries out voltage sample, and the voltage of AC supply voltage waving interval range is divided into M voltage class section, output voltage Grade encoded radio.Voltage class encoded radio shares M efficient coding value, corresponds with M voltage class section.
Postponed and generate not trigger region control signal to be realized to voltage class encoded radio by delay protection unit；Delay Protection location input voltage grade encoded radio, exports the voltage class encoded radio after postponing and trigger region does not control signal.
By delay detection module and not, trigger region control signal generator module forms delay protection unit；Delay detection module In include K identical delay detection circuits, each delay detection circuit input signal is postponed after it is defeated Signal out, while Edge check is carried out to input signal, export Edge check signal；K delay detection circuit is respectively to K electricity It presses grade encoded radio to carry out signal delay, the position the K voltage class encoded radio after being postponed, and K voltage class is encoded Value carries out Edge check, obtains K Edge check signal；Trigger region control signal generator module does not examine K edge of input It surveys signal and is converted to not trigger region control signal output.
In K identical delay detection circuits, each delay detection circuit includes resistance RY3, capacitor CY3, phase inverter FY5, phase inverter FY6, NAND gate FY7 or door FY8, NAND gate FY9；Phase inverter FY5 input terminal is connected to input signal end；Electricity One end of resistance RY3 is connected to phase inverter FY5 output end, and other end is respectively connected to one end of capacitor CY3, NAND gate FY7 The input terminal of an input terminal of one input terminal or door FY8, phase inverter FY6；The other end of capacitor CY3 is connected to ground terminal, Another input terminal of NAND gate FY7 is connected to input signal end or another input terminal of door FY8 is connected to input Signal end；2 input terminals of NAND gate FY9 are respectively connected to NAND gate FY7 output end or door FY8 output end；Phase inverter FY6 Output end is the output signal end after delay；NAND gate FY9 output end is Edge check signal output end.
Either, in K identical delay detection circuits, each delay detection circuit includes resistance RY0, resistance RY1, electricity Hinder RY2, capacitor CY0, capacitor CY1, capacitor CY2, diode DY1, diode DY2, driving gate FY0, phase inverter FY1, phase inverter FY2, phase inverter FY3, NAND gate FY4；Resistance RY0 is connected between input signal end and driving gate FY0 input terminal, capacitor CY0 It is connected between driving gate FY0 input terminal and ground terminal, driving gate FY0 output end is the output signal end after delay；Capacitor CY1 It being connected between input signal end and phase inverter FY1 input terminal, resistance RY1 is connected between phase inverter FY1 input terminal and ground terminal, Diode DY1 cathode is connected to phase inverter FY1 input terminal, anode is connected to ground terminal；Phase inverter FY2 input is connected to input signal End；Capacitor CY2 is connected between phase inverter FY2 output end and phase inverter FY3 input terminal, and it is defeated that resistance RY2 is connected to phase inverter FY3 Enter between end and ground terminal, diode DY2 cathode is connected to phase inverter FY3 input terminal, anode is connected to ground terminal；The 2 of NAND gate FY4 A input terminal is respectively connected to phase inverter FY1 output end, phase inverter FY3 output end；The output end of NAND gate FY4 is Edge check Signal output end.
Or be, in K identical delay detection circuits, each delay detection circuit include resistance RY1, resistance RY2, Capacitor CY1, capacitor CY2, diode DY1, diode DY2, phase inverter FY1, phase inverter FY2, phase inverter FY3, phase inverter FY11, phase inverter FY12, phase inverter FY13, phase inverter FY14, NAND gate FY4；Phase inverter FY11 input terminal is connected to input letter Number end, phase inverter FY12 input terminal is connected to phase inverter FY11 output end, and phase inverter FY13 input terminal is connected to phase inverter FY12 Output end, phase inverter FY14 input terminal are connected to phase inverter FY13 output end, and phase inverter FY14 output end is the output after delay Signal end；Capacitor CY1 is connected between input signal end and phase inverter FY1 input terminal, and it is defeated that resistance RY1 is connected to phase inverter FY1 Enter between end and ground terminal, diode DY1 cathode is connected to phase inverter FY1 input terminal, anode is connected to ground terminal；Phase inverter FY2 is defeated Enter to be connected to input signal end；Capacitor CY2 is connected between phase inverter FY2 output end and phase inverter FY3 input terminal, resistance RY2 It is connected between phase inverter FY3 input terminal and ground terminal, diode DY2 cathode is connected to phase inverter FY3 input terminal, anode is connected to Ground terminal；2 input terminals of NAND gate FY4 are respectively connected to phase inverter FY1 output end, phase inverter FY3 output end；NAND gate FY4 Output end is Edge check signal output end.
Trigger region control signal generator module is not with K input signal end or door FY10；Or K of door FY10 are defeated Enter the Edge check signal output end that signal end is respectively connected in K delay detection circuit；Or the output end output of door FY10 Trigger region does not control signal.
Output Trig control signal is realized by interlocking control unit；Voltage class after interlocking control unit input delay is compiled Code value and not trigger region control signal, output control thyristor switch group Trig control signal；When not trigger region control signal without Effect and when voltage class encoded radio is invalid code value, interlocking control unit exports 1 group of specific invalid Trig control signal.
The on-off assembled state of thyristor is issued by trigger unit by Trig control signal and is triggered in thyristor switch group Pulse control；When Trig control signal is correct, the working power of trigger unit, triggering control of the trigger unit according to input are opened Signal processed issues corresponding thyristor triggering impulse；When Trig control signal mistake, the working power of trigger unit is cut off, is touched Bill member stops issuing thyristor triggering impulse.
Auto compensating type main circuit, analog-to-digital conversion coding unit, delay protection unit, interlocking control unit, trigger unit, Error detection control unit forms auto compensating type AC voltage regulator, for realizing the auto compensating type AC voltage regulator controlling party Method.Auto compensating type main circuit includes compensator transformer, auto-transformer, thyristor switch group.
Thyristor in thyristor switch group is that bidirectional thyristor or 2 unidirectional thyristor reverse parallel connections are formed Thyristor alternating-current switch.
The beneficial effects of the present invention are: control thyristor switch group, which changes compensator transformer excitation voltage, carries out voltage compensation When, ipsilateral thyristor does not simultaneously turn in guaranteeing thyristor switch group, while realizing thyristor mutual lock control, also to can The analog-to-digital conversion that can occur is compiled
There is mistake and outputs invalid code value in code unit, and interlocking control unit logic error occurs and outputs The case where invalid Trig control signal, stops issuing trigger pulse and simultaneously switches off the primary side power supply of auto-transformer, effectively Ground strengthens the protection for auto compensating type AC voltage-stabilizing course of work exception；Protection shape is in thyristor switch group When state, if Trig control signal is effective, system reenters normal logic control state, then can be automatically stopped thyristor The guard mode of switching group simultaneously makes it be in compensation work state again；It is not controlled using the program mode (PM) of single-chip microcontroller, PLC etc. brilliant The switching of brake tube switches, and avoids pressure stabilizing procedure fault caused by the problems such as program runs fast, crashes.Above-mentioned function keeps exchange steady It is stable, reliable to press through Cheng Gengjia.
Detailed description of the invention
Fig. 1 is the system composition block diagram of auto compensating type AC voltage regulator；
Fig. 2 is auto compensating type main circuit embodiment 1；
Fig. 3 is auto compensating type main circuit embodiment 2；
Fig. 4 is analog-to-digital conversion coding unit embodiment 1；
Fig. 5 is analog-to-digital conversion coding unit embodiment 2；
Fig. 6 is delay protection unit embodiment block diagram；
Fig. 7 is the delay detection circuit embodiment 1 that delay detection module encodes value signal Y11 for voltage class；
Fig. 8 is the delay detection circuit embodiment 2 that delay detection module encodes value signal Y11 for voltage class；
Fig. 9 is the delay detection circuit embodiment 3 that delay detection module encodes value signal Y11 for voltage class；
Figure 10 is that trigger region does not control signal generator module embodiment；
Figure 11 is that split-phase closes waveform diagram in the middle part of delay protection unit；
Figure 12 is the embodiment for interlocking control unit, wherein Figure 12 (a) is interlocking control unit embodiment 1, Figure 12 (b) To interlock control unit embodiment 2；
Figure 13 is the trigger circuit embodiment that bidirectional thyristor SR1 is triggered in trigger unit；
Figure 14 is error detection control unit embodiment.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described.
Fig. 1 is the system composition block diagram of auto compensating type AC voltage regulator, and analog-to-digital conversion coding unit is to AC power source electricity Pressure carries out voltage sample, the output voltage grade encoded radio P2 after analog-to-digital conversion；Delay protection unit input voltage grade coding Value P2, exports the voltage class encoded radio P3 after postponing and trigger region does not control signal P4；After interlocking control unit input delay Voltage class encoded radio P3 and not trigger region control signal P4, export Trig control signal P5；Trigger unit is according to input Trig control signal P5 issues trigger signal P6 to auto compensating type main circuit, controls the logical of thyristor in thyristor switch group It is disconnected；Error detection control unit judges whether the Trig control signal P5 of input is effective Trig control signal, and according to judging result Protection control signal is issued to auto compensating type main circuit, thyristor switch group is protected.
Fig. 2 is auto compensating type main circuit embodiment 1, including compensator transformer TB1 and auto-transformer TB2, and 6 two-way Thyristor SR1-SR6 collectively constitutes thyristor switch group, and fuse FU1 and relay normally open switch KA-1, relay is normally closed opens It closes KA-2 and forms relay protection circuit.
In Fig. 2, the bucking coil of compensator transformer TB1 is connected in phase line, and phase line input terminal is L1, output end L2. Voltage on TB1 magnet exciting coil is controlled by thyristor switch group.Auto-transformer TB2 has 3 output tap C1, C2, C3, two-way One end of TB1 magnet exciting coil, the other end point of SR1, SR3, SR5 are connected to after one end of thyristor SR1, SR3, SR5 are in parallel It is not connected to tap C1, C2, C3；TB1 magnet exciting coil is connected in addition after one end of bidirectional thyristor SR2, SR4, SR6 are in parallel One end, the other end of SR2, SR4, SR6 are then respectively connected to tap C1, C2, C3.If auto-transformer TB2 tap C1, C2 Between output voltage U12 it is different from the output voltage U23 between C2, C3, then thyristor switch group be up to forward direction U12, forward direction U23, forward direction U12+U23, reversed U12, reversed U23, reversed U12+U23 totally 6 kinds of magnet exciting coil voltage compensation working conditions, it is additional 0 voltage compensation working condition when a kind of input voltage is within normal range (NR), the AC power source electricity of phase line input terminal L1 input Enough be at most divided into 7 voltage ranges compensates control to pressure energy.In Fig. 2, N is zero curve, and G11, G12 to G61, G62 are respectively The trigger signal input terminal of bidirectional thyristor SR1 to SR6.In Fig. 2, the ipsilateral brilliant lock of bidirectional thyristor SR1, SR3, SR5 composition Pipe, bidirectional thyristor SR2, SR4, SR6 form another ipsilateral thyristor；To avoid short circuit, cannot have 2 simultaneously in ipsilateral thyristor A and 2 or more thyristors simultaneously turn on；For example, SR1, SR3 cannot be simultaneously turned on, SR4, SR6 cannot be simultaneously turned on, etc. Deng.
Fig. 3 is auto compensating type main circuit embodiment 2, including compensator transformer TB1 and auto-transformer TB2, and 8 two-way Thyristor SR1-SR8 collectively constitutes thyristor switch group, and fuse FU1 and relay normally open switch KA-1, relay is normally closed opens It closes KA-2 and forms relay protection circuit.
In Fig. 3, the bucking coil of compensator transformer TB1 is connected in phase line, and phase line input terminal is L1, output end L2. Voltage on TB1 magnet exciting coil is controlled by thyristor switch group.Auto-transformer TB2 has 4 outputs tap C1, C2, C3, C4, One end of TB1 magnet exciting coil, SR1, SR3, SR5, SR7 are connected to after one end of bidirectional thyristor SR1, SR3, SR5, SR7 are in parallel Other end be respectively connected to tap C1, C2, C3, C4；It is connected after one end of bidirectional thyristor SR2, SR4, SR6, SR8 are in parallel To the other end of TB1 magnet exciting coil, the other end of SR2, SR4, SR6, SR8 be then respectively connected to tap C1, C2, C3, C4.If the output voltage U12 between auto-transformer TB2 tap C1, C2, the output voltage U23 between C2, C3, the output between C3, C4 Voltage U34 is respectively different, then thyristor switch group includes forward direction U12, forward direction U23, forward direction U34, forward direction U12+U23, forward direction U23 + U34, forward direction U12+U23+U34, reversed U12, reversed U23, reversed U34, reversed U12+U23, reversed U23+U34, reversed U12 + U23+U34 totally 12 kinds of magnet exciting coil voltage compensation working conditions, 0 electricity when a kind of additional input voltage is within normal range (NR) Compensation work state is pressed, the AC supply voltage of phase line input terminal L1 input can be divided into most 13 voltage ranges and be mended Repay control.In Fig. 3, N is zero curve, and G11, G12 to G81, G82 are respectively the trigger signal input of bidirectional thyristor SR1 to SR8 End.In Fig. 3, bidirectional thyristor SR1, SR3, SR5, SR7 form ipsilateral thyristor, bidirectional thyristor SR2, SR4, SR6, SR8 group At another ipsilateral thyristor；To avoid short circuit, cannot there is 2 and 2 or more thyristors in ipsilateral thyristor simultaneously while leading It is logical；For example, SR1, SR7 cannot be simultaneously turned on, and SR4, SR8 cannot be simultaneously turned on, etc..
Each bidirectional thyristor in Fig. 2, Fig. 3 can be substituted with the unidirectional thyristor of 2 reverse parallel connections.Fig. 2, Fig. 3 In, relay normally open switch and relay normally closed switch composition relay protection switch.
Fig. 4 is analog-to-digital conversion coding unit embodiment 1.In Fig. 4, FD1 is that real available value detects device LTC1966, LTC1966 and transformer TV1, capacitor CV1, capacitor CV2, resistance RV1, resistance RV2 constitute RMS to DC circuit, to from phase line The AC supply voltage virtual value of L1 and zero curve N input measures, and obtains AC supply voltage sampled value U1.LTC1966's UIN1, UIN2 are alternating voltage difference input terminal, and USS is the negative supply input terminal that can be grounded, and UDD is positive power input, GND is ground terminal, and EN is that low level effectively enables control signal, and UOUT is voltage output end, and COM is output voltage return End.
In Fig. 4, FD2 is biproduct parting A/D converter ICL7109, for by AC supply voltage waving interval range Voltage divides into voltage class section and is converted to the voltage class encoded radio output of binary system composition.In Fig. 4, ICL7109's Operation/holding end RUN, low byte enable end LBEN, test lead TEST connect high level, chip select terminal CE/LOAD, mode end MODE, High byte enable end HBEN, oscillator selection end OSC SEL connect low level, and work is continuing (i.e. automatic to repeat) conversion regime And the direct output mode of high byte；Crystal oscillator XT1 is connected to the oscillator input OSC IN and oscillator output end of ICL7109 OSC OUT；One end connection composition integrating circuit of integrating capacitor C11, integrating resistor R11, automatic zero set capacitor C12, in addition one End is respectively connected to the integrating capacitor end INT, buffer output end BUF, automatic zero set capacitance terminal AZ of ICL7109；ICL7109 Differential Input high-end IN HOL input ac power voltage sample value U1, Differential Input low side IN LO be connected to reference voltage Output end REF OUT；Resistance RF1, resistance RF2 divide reference voltage, and la tension de reference Uref est, Uref are obtained on resistance RF2 It is input to reference voltage positive input terminal REF IN+ and reference voltage negative input end REF IN-；Reference capacitance C13 is connected to reference Capacitor positive input terminal REF CAP+ and reference capacitance negative input end REF CAP-；The V+ of ICL7109 is positive power source terminal, is connected to electricity Source+VCC；The V- of ICL7109 is negative power end, is connected to power supply-VCC；The GND of ICL7109 is digital ground terminal, and COMMON is mould Quasi- ground terminal, is connected to publicly GND.
If the AC supply voltage fluctuation range of input is 220V ± 10%, it is desirable that implemented using auto compensating type main circuit Example 1 is stablized to be exported in the range of 220V ± 2%, and AC supply voltage waving interval range is 242V to 198V, at this time Using the analog-to-digital conversion coding unit embodiment 1 of Fig. 4, input can be divided into section voltage in 242V to the voltage between 198V Size is 7 voltage class sections of 6.4V, and the voltage in 3 voltage class sections therein is higher than desired output voltage model It encloses, needs to carry out drop compensation；The voltage in 3 voltage class sections boosts lower than desired output voltage range Compensation；1 voltage class section carries out 0 voltage compensation, i.e. uncompensation within desired output voltage range.The electricity of 6.4V It is not more than 220V ± 1.5% between pressure area, meets requirement of the output control within 220V ± 2%；7 voltage class of 6.4V The corresponding AC supply voltage waving interval in section is 242.4V to 197.6V, covers the range actually fluctuated.Using Fig. 2 Auto compensating type main circuit embodiment 1 compensates, and the output voltage U12 of auto-transformer TB2 is low, U23 high；Voltage U23 It is 2 times of voltage U12；Then the input voltage of auto-transformer TB2 is alternating current 220V, and the excitation of TB1 is only made of output voltage U12 When coil voltage, TB1 offset voltage is 6.4V；The input voltage of auto-transformer TB2 is alternating current 220V, only uses output voltage When U23 does the magnet exciting coil voltage of TB1, TB1 offset voltage is 12.8V；The input voltage of auto-transformer TB2 is exchange 220V, while when doing using output voltage U12, U23 the magnet exciting coil voltage of TB1, TB1 offset voltage is 19.2V.In Fig. 4, ICL7109 carries out A/D conversion to from the differential voltage between Differential Input high-end IN HOL and Differential Input low side IN LO； The corresponding practical AC supply voltage waving interval in 7 voltage class sections of 6.4V is 242.4V to 197.6V, covers reality The range of border fluctuation；Reference voltage Ucp that Differential Input low side IN LO is inputted, being exported from reference voltage output end REF OUT It should be corresponding with the lower bound theoretical value 197.6V of AC supply voltage waving interval range；Accordingly, it is determined that the change of transformer TV1 Than the intrinsic standoff ratio with resistance RV1, resistance RV2, it should when AC supply voltage is lower bound theoretical value 197.6V, make AC power source Voltage sample value U1 is equal to the reference voltage Ucp of reference voltage output end REF OUT output.In Fig. 4, analog-to-digital conversion coding unit The voltage class encoded radio P2 of output by exported from ICL7109 highest 4 B12, B11, B10, B9 data Y14, Y13, Y12, Y11 composition；One-to-one 7 voltage class in 7 voltage class sections encode from low to high for Y14, Y13, Y12, Y11 and voltage Value is 0000,0001,0010,0011,0100,0101,0110 respectively, is realized by adjusting the size of la tension de reference Uref est. Adjust la tension de reference Uref est size method first is that: demarcation voltage of the AC supply voltage in 2 voltage class sections of highest When fluctuating up and down at 236V, adjusting (adjusts) intrinsic standoff ratio of resistance RF1, resistance RF2, makes the numerical value of Y14, Y13, Y12, Y11 It is fluctuated between 0110 and 0101；Adjust la tension de reference Uref est size method second is that: set Ux and exist as AC supply voltage When the teachings fluctuation of 197.6V to 242.4V, inputted from Differential Input high-end IN HOL and Differential Input low side IN LO Voltage change range has
The variation range of Ux corresponds to 7 minimum code values of B12, B11, B10, B9；If corresponding B12, B11, B10, B9's The input variation full scale input voltage range of 10 BCD encoded radios is Um, is had
The reference voltage of ICL7109 is the 1/2 of full scale input voltage, is had
Therefore, the intrinsic standoff ratio for only needing to adjust resistance RF1, resistance RF2 at this time makes Uref be equal to the calculated value of formula (1) i.e. It can.
If the AC supply voltage fluctuation range of input is 220V+10% to 220V-20%, it is desirable that use auto compensating type Main circuit embodiment 2 is stablized to be exported in the range of 220V ± 2%, AC supply voltage waving interval range be 242V extremely 176V uses the analog-to-digital conversion coding unit embodiment 1 of Fig. 4 at this time, can be by input at 242V to the voltage between 176V points Voltage for 10 voltage class sections that section voltage swing is 7V, 3 voltage class sections therein is higher than the defeated of requirement Voltage range out needs to carry out drop compensation；The voltage in 6 voltage class sections is needed lower than desired output voltage range Carry out boosting compensation；1 voltage class section carries out 0 voltage compensation, i.e. uncompensation within desired output voltage range. The voltage range of 7V is 220V ± 1.6%, meets requirement of the output control within 220V ± 2%；10 voltage class of 7V The corresponding AC supply voltage waving interval in section is 244.5V to 174.5V, covers the range actually fluctuated.Using Fig. 3 Auto compensating type main circuit embodiment 2 compensates, and the output voltage U12 of auto-transformer TB2 is minimum, U23 highest；Electricity Pressure U23 is 3 times of voltage U12, and voltage U34 is 2 times of voltage U12；Then the input voltage of auto-transformer TB2 is exchange 220V, when only making the magnet exciting coil voltage of TB1 of output voltage U12, TB1 offset voltage is 7V；Auto-transformer TB2's is defeated Entering voltage is alternating current 220V, and when only making the magnet exciting coil voltage of TB1 of output voltage U23, TB1 offset voltage is 21V；Self coupling becomes The input voltage of depressor TB2 is alternating current 220V, when only making the magnet exciting coil voltage of TB1 of output voltage U34, TB1 offset voltage For 14V；The input voltage of auto-transformer TB2 is alternating current 220V, while the excitation wire of TB1 is done using output voltage U12, U23 When enclosing voltage, TB1 offset voltage is 28V；Etc..At this point, the corresponding practical AC power source electricity in 10 voltage class sections of 7V Pressure waving interval is 244.5V to 174.5V, covers the range actually fluctuated；Differential Input low side IN LO input, from base The reference voltage Ucp of quasi- voltage output end REF OUT output should be theoretical with the lower bound of AC supply voltage waving interval range Value 174.5V is corresponding；Accordingly, it is determined that the no-load voltage ratio of transformer TV1 and the intrinsic standoff ratio of resistance RV1, resistance RV2, it should in AC power source When voltage is lower bound theoretical value 174.5V, export AC supply voltage sampled value U1 equal to reference voltage output end REF OUT Reference voltage Ucp.In Fig. 4, the voltage class encoded radio P2 of analog-to-digital conversion coding unit output is by from ICL7109 highest 4 Data Y14, Y13, Y12, Y11 composition of B12, B11, B10, B9 output, Y14, Y13, Y12, Y11 and voltage 10 from low to high The one-to-one 10 voltage class encoded radios in voltage class section are 0000 respectively, 0001,0010,0011,0100,0101, 0110,0111,1000,1001, it is realized by adjusting the size of la tension de reference Uref est.Adjust the side of la tension de reference Uref est size Method first is that: AC supply voltage is on highest two voltage class sections boundary (i.e. the 235.4V of AC supply voltage) When lower fluctuation, adjusting (adjusts) intrinsic standoff ratio of resistance RF1, resistance RF2, makes the numerical value of Y14, Y13, Y12, Y11 in 1000 and It is fluctuated between 1001；Adjust la tension de reference Uref est size method second is that: set Uy as AC supply voltage 174.5V to When the teachings fluctuation of 244.5V, from the voltage change of Differential Input high-end IN HOL and Differential Input low side IN LO input Range has at this time
The variation range of Uy corresponds to 10 encoded radios of B12, B11, B10, B9 output binary-coded decimal, inputs, has for full scale
Therefore, the intrinsic standoff ratio for only needing to adjust resistance RF1, resistance RF2 at this time makes Uref be equal to the calculated value of formula (2) i.e. It can.
In Fig. 4, other peripheral cell parameters of LTC1966, ICL7109 can be by reading corresponding device data handbook It is determined.AC supply voltage sampled value U1 can also realize that ICL7109 can also use it using other detection circuits His device, for example, ICL7109 is replaced using double integration A/D converter MAX139, MAX140, ICL7107 etc., MAX139, The binary coding of the outputs such as MAX140, ICL7107 is 7 sections of codes, is acted on identical as the binary-coded decimal that ICL7109 is exported.
Fig. 5 is analog-to-digital conversion coding unit embodiment 2, and the AC supply voltage inputted from phase line L1 and zero curve N is through transformation It after device TV2 decompression, is rectified by the rectifier bridge that diode DV1-DV4 is formed, then through capacitor CV3 filtering and resistance RV3, resistance RV4 Partial pressure obtains the AC supply voltage sampled value U2 with the AC supply voltage virtual value direct proportionality of input；Resistance RV5 Lower threshold potential circuit is formed with voltage-stabiliser tube WV1, voltage is and AC supply voltage waving interval range on voltage-stabiliser tube WV1 The corresponding lower threshold voltage U2cp of lower limit value.AC supply voltage sampled value U2 can also send the difference of the ICL7109 into Fig. 4 Divide input high-end IN HOL, the voltage class encoded radio that binary system is constituted is converted to by ICL7109 and is exported.
In Fig. 5, FD3 is biproduct parting A/D converter MC14433, for by AC supply voltage waving interval range Voltage divides into voltage class section and is converted to the voltage class encoded radio output of binary system composition.In Fig. 5, MC14433's Conversion end output end EOC is connected to transformation result output control terminal DU, its work is made to repeat transition status automatically；Integral Resistance R14 and integrating capacitor C14 is connected to external integral element end R1, R1/C1, C1 of MC14433；Oscillation resistance R15 connection To clock outward element end CP0, CP1 of MC14433；Compensating electric capacity C15 be connected to MC14433 external compensating electric capacity end C01, C02；Resistance RF3, resistance RF4 divide power supply+VCC, and la tension de reference Uref est 1, Uref1 input are obtained on resistance RF4 To reference voltage input terminal VREF；VDD is the positive power source terminal of MC14433, is connected to power supply+VCC；VSS is digital ground terminal, VAG To simulate ground terminal, it is connected to publicly.
In Fig. 5, FD4 is 4 road D-latch CD4042, and 4 data input pin D0-D3 of CD4042 are connected to MC14433's 4 data output end Q0-Q3；The triggering input end of clock CP of CD4042 is connected to hundred gating signal output ends of MC14433 DS2；The clock polarity control terminal POL of CD4042 connects high level, and positive power source terminal VDD is connected to power supply+VCC, digital ground terminal VSS It is connected to publicly.CD4042 latches hundred BCD data that timesharing after each conversion end of MC14433 exports, modulus Transform coding unit output voltage class encoded radio P2 by exported from CD4042 output end Q3, Q2, Q1, Q0 data Y14, Y13, Y12, Y11 composition.CD4042 can be replaced with other latch.
If the AC supply voltage fluctuation range of input is 220V ± 10%, it is desirable that implemented using auto compensating type main circuit Example 1 is stablized to be exported in the range of 220V ± 2%, and AC supply voltage waving interval range is 242V to 198V, at this time Using the analog-to-digital conversion coding unit embodiment 2 of Fig. 5, input can be divided into section voltage in 242V to the voltage between 198V Size is 7 voltage class sections of 6.4V, and the voltage in 3 voltage class sections therein is higher than desired output voltage model It encloses, needs to carry out drop compensation；The voltage in 3 voltage class sections boosts lower than desired output voltage range Compensation；1 voltage class section carries out 0 voltage compensation, i.e. uncompensation within desired output voltage range.
In Fig. 5, the measured voltage input terminal VX of MC14433 is connected to the output end of AC supply voltage sampled value U2, and Lower threshold voltage U2cp is connected to publicly GND, and therefore, MC14433 is to AC supply voltage sampled value U2 and lower bound Voltage difference between threshold voltage U2cp is converted；The corresponding practical AC power source electricity in 7 voltage class sections of 6.4V Pressure waving interval is 242.4V to 197.6V, the lower bound of lower threshold voltage U2cp and AC supply voltage waving interval range Theoretical value 197.6V is corresponding；Therefore, the intrinsic standoff ratio of the no-load voltage ratio of transformer TV2 and resistance RV3, resistance RV4, it should in AC power source When voltage is lower bound theoretical value 197.6V, AC supply voltage sampled value U2 is made to be equal to lower threshold voltage U2cp.In Fig. 5, mould The voltage class encoded radio P2 of number transform coding unit output is by data Y14, Y13, Y12, Y11 from MC14433 hundred output Composition；Due to requiring input being divided into 7 voltages that section voltage swing is 6.4V in 242.4V to the voltage between 197.6V One-to-one 7 voltage class in 7 voltage class sections are compiled from low to high for grade interval, Y14, Y13, Y12, Y11 and voltage Code value is 0000,0001,0010,0011,0100,0101,0110 respectively, and the reference voltage of MC14433 is input to by adjusting U2ref size is realized.Adjust reference voltage U2ref size method first is that: AC supply voltage is in 2 voltage of highest etc. When fluctuating up and down at the demarcation voltage 236V in grade section, reference voltage is enabled to reduce since maximum value, adjusts resistance RF3, resistance The intrinsic standoff ratio of RF4 fluctuates the numerical value of Y14, Y13, Y12, Y11 between 0110 and 0101；Adjust reference voltage U2ref size Method second is that: set the voltage change of Ux at this time as AC supply voltage in the teachings fluctuation of 197.6V to 242.4V Range has
Since the measurement output of MC14433 is 3 half BCD data, corresponding full scale input, kilobit shares 20 plus hundred A BCD encoded radio, the variation range of Ux correspond to 7 minimum code values therein；If the input of corresponding 20 BCD encoded radios becomes Changing full scale input voltage range is Uz, is had
The reference voltage of MC14433 is equal to full scale input voltage, has
Therefore, the intrinsic standoff ratio for only needing to adjust resistance RF3, resistance RF4 at this time makes U2ref be equal to the calculated value of formula (3) i.e. It can.
If the AC supply voltage fluctuation range of input is 220V+10% to 220V-20%, it is desirable that use auto compensating type Main circuit embodiment 2 is stablized to be exported in the range of 220V ± 2%, AC supply voltage waving interval range be 242V extremely 176V uses the analog-to-digital conversion coding unit embodiment 2 of Fig. 5 at this time, can be by input at 242V to the voltage between 176V points Voltage for 10 voltage class sections that section voltage swing is 7V, 3 voltage class sections therein is higher than the defeated of requirement Voltage range out needs to carry out drop compensation；The voltage in 6 voltage class sections is needed lower than desired output voltage range Carry out boosting compensation；1 voltage class section carries out 0 voltage compensation, i.e. uncompensation within desired output voltage range. The corresponding practical AC supply voltage waving interval in 10 voltage class sections of 7V is 244.5V to 174.5V, lower threshold electricity Press U2cp corresponding with the lower limit value theoretical value 174.5V of AC supply voltage waving interval range；Therefore, the no-load voltage ratio of transformer TV2 With the intrinsic standoff ratio of resistance RV3, resistance RV4, it should when AC supply voltage is lower bound theoretical value 174.5V, keep AC power source electric Sampled value U2 is pressed to be equal to lower threshold voltage U2cp.In Fig. 5, analog-to-digital conversion coding unit output voltage class encoded radio P2 by From MC14433 hundred data Y14, Y13, Y12, the Y11 exported compositions, Y14, Y13, Y12, Y11 and supply voltage are from low to high The one-to-one 10 voltage class encoded radios in 10 voltage class sections are 0000 respectively, 0001,0010,0011,0100, 0101,0110,0111,1000,1001, it is realized by adjusting the size of reference voltage U2ref.Adjust reference voltage U2ref The method of size first is that: AC supply voltage is in highest two voltage class sections boundary (i.e. AC supply voltage When 235.4V) fluctuating up and down, reference voltage is enabled to reduce since maximum value, adjusts the intrinsic standoff ratio of resistance RF3, resistance RF4, make The numerical value of Y14, Y13, Y12, Y11 fluctuate between 1000 and 1001；Adjust reference voltage U2ref size method second is that: set Uy is voltage change range of the AC supply voltage in the teachings fluctuation of 174.5V to 244.5V at this time, is had
The variation range of Uy corresponds to MC14433 kilobit plus hundred 10 minimum codes shared in 20 BCD encoded radios Value；If the input variation full scale input voltage range for corresponding to 20 BCD encoded radios at this time is Uz, have
The reference voltage of MC14433 is equal to full scale input voltage, has
Therefore, the intrinsic standoff ratio for only needing to adjust resistance RF3, resistance RF4 at this time makes U2ref be equal to the calculated value of formula (4) i.e. It can.
In Fig. 5, other peripheral cell parameters of MC14433 can be carried out really by reading corresponding device data handbook It is fixed.AC supply voltage sampled value U2 can also be realized using other detection circuits, for example, being detected using various real available values Chip is realized.Difference between AC supply voltage sampled value U2 and corresponding lower threshold voltage can also use its other party Method obtains, for example, AC supply voltage sampled value U2 is subtracted corresponding lower threshold voltage with analog voltage subtraction circuit Value.
In the various embodiments described above, when carrying out voltage compensation using auto compensating type main circuit embodiment 1, the mould of Fig. 4 is utilized The number transform coding unit embodiments 1 either analog-to-digital conversion coding unit embodiment 2 of Fig. 5, will input 242V to 198V it Between voltage when being divided into 7 voltage class sections that section voltage swing is 6.4V, the voltage that is made of Y14, Y13, Y12, Y11 In grade encoded radio, Y14 is constantly equal to 0, and therefore, at this time by 3, i.e., actual voltage class encoded radio is it is also assumed that be Y13, Y12, Y11 composition, Y13, Y12, Y11 and voltage one-to-one 7 voltage in 7 voltage class sections etc. from low to high Grade encoded radio is 000,001,010,011,100,101,110 respectively.
Fig. 6 is delay protection unit embodiment block diagram, wherein delay detection module YC1 is respectively to the voltage class of input Encoded radio Y14, Y13, Y12, Y11 carry out voltage class encoded radio Y24, Y23, Y22, Y21 after signal delay is postponed, Y23, Y24, Y22, Y21 form P3；YC1 module carries out Edge check to Y14, Y13, Y12, Y11 respectively simultaneously and obtains edge inspection Survey signal Y34, Y33, Y32, Y31；Not trigger region control signal generator module YC2 by Edge check signal Y34, Y33 of input, Y32, Y31 are converted to not trigger region control signal P4 output.In the embodiment block diagram of Fig. 6, the electricity of delay detection module YC1 input Pressure grade encoded radio has Y14, Y13, Y12, Y11 etc. 4, and K is equal to 4；If K is equal to 3, the electricity of delay detection module YC1 input Pressure grade encoded radio is made of 3 binary values, for example, when by Y13, Y12, Y11, after progress signal delay is postponed Voltage class encoded radio accordingly also only has Y23, Y22, Y21 etc. 3, carries out Edge check to Y13, Y12, Y11 and obtains edge Signal also Y33, Y32, Y31 etc. 3 are detected, not the Edge check signal of trigger region control signal generator module YC2 input Only Y33, Y32, Y31 etc. 3.
Fig. 7 is the delay detection circuit embodiment 1 that delay detection module encodes value signal Y11 for voltage class.Resistance RY0, capacitor CY0, driving gate FY0 realize the signal delay of Y11 is obtained Y11 it is delayed after signal Y21.Resistance RY1, electricity Hold the rising edge detection circuit that CY1, diode DY1, phase inverter FY1 composition are directed to input signal Y 11, the output of phase inverter FY1 In signal YP1, the pulse of corresponding negative pulse form is exported after Y11 rising edge.Resistance RY2, capacitor CY2, two Pole pipe DY2, phase inverter FY2, FY3 composition are directed to the failing edge detection circuit of input signal Y 11, the output signal of phase inverter FY3 In YP2, the pulse of corresponding negative pulse form is exported after Y11 failing edge.NAND gate FY4 is accomplished that negative patrol Collect or logic function, when there is negative pulse generation in input signal Y P1, YP2, the Edge check signal of NAND gate FY4 output Positive pulse is generated in Y31, i.e., when input signal Y 11 changes, NAND gate FY4 exports the pulse of a positive pulse form. In Fig. 7, the device of driving gate FY0, phase inverter FY1, phase inverter FY3 preferably with Schmidt's input, for example, phase inverter selects 74HC14, CD40106 etc.；Driving gate FY0 can be made of 2 phase inverters with Schmidt's input.
Fig. 8 is the delay detection circuit embodiment 2 that delay detection module encodes value signal Y11 for voltage class.Reverse phase Device FY5, resistance RY3, capacitor CY3 carry out reverse phase and delay to input signal Y 11, obtain the delayed inversion signal YP0 of Y11； Phase inverter FY6 again by YP0 reverse phase, obtain Y11 it is delayed after signal Y21.The signal of NAND gate FY7 input is Y11 and Y11 The pulse of negative pulse form corresponding with Y11 rising edge is generated in delayed inversion signal YP0, output signal YP1；Or door The signal of FY8 input is the delayed inversion signal YP0 of Y11 and Y11, is generated in output signal YP2 corresponding with Y11 failing edge The pulse of negative pulse form.NAND gate FY9 is accomplished that negative logic or logic function, when having in input signal Y P1, YP2 When negative pulse generates, positive pulse is generated in the Edge check signal Y31 of NAND gate FY9 output, i.e., when input signal Y 11 changes When, NAND gate FY9 exports the pulse of a positive pulse form.In Fig. 8, phase inverter FY6, NAND gate FY7 or door FY8 are preferred Device with Schmidt's input, for example, phase inverter selects 74HC14, CD40106 etc.；NAND gate selects 74HC132, CD4093 Etc.；Or door selects 74HC7032, or the phase inverters that input of 2 band Schmidts of selection and 1 NAND gate are realized or door Function.
Fig. 9 is the delay detection circuit embodiment 3 that delay detection module encodes value signal Y11 for voltage class, wherein Rising edge detection circuit for input signal Y 11 is formed by resistance RY1, capacitor CY1, diode DY1, phase inverter FY1, and Failing edge detection electricity for input signal Y 11 is formed by resistance RY2, capacitor CY2, diode DY2, phase inverter FY2, FY3 Road, and it is identical as the embodiment 1 of Fig. 7 using the circuit of NAND gate FY4 output Edge check signal Y31.In Fig. 9, by reverse phase Device FY11, FY12, FY13, FY14 realize the signal delay of Y11 is obtained Y11 it is delayed after signal Y21.
The embodiment 1-3 of Fig. 7, Fig. 8, Fig. 9 are the delay detection electricity for the signal Y11 in voltage class encoded radio Road, for other signals in voltage class encoded radio, for example, it is directed to input signal Y 13, the delay detection circuit of Y12, and The delay detection circuit of Y14 in 4 voltage class encoded radios is delayed with input signal Y 11 is directed in corresponding embodiment The circuit structure of detection is as function.Delay detection circuit can also realize its function using other circuits met the requirements Energy.
The function of trigger region control signal generator module is, when any one of Edge check signal of input or It is multiple when having pulse relevant to edge, a pulse is not exported in trigger region control signal.Figure 10 is not trigger Area controls signal generator module embodiment, by or door FY10 realize that the input signal of corresponding function or door FY10 are that edge is examined Signal Y34, Y33, Y32, Y31 are surveyed, exports and controls signal P4 for not trigger region.In Figure 10 embodiment, trigger region does not control signal The pulse of output is positive pulse, i.e., trigger region control signal high level is not effective；When or door FY10 change nor gate into when, do not touch The pulse for sending out area's control signal output is negative pulse, and trigger region control signal low level is not effective.If the edge inspection of input Survey signal Y34, Y33, Y32, Y31 in generate have pulse relevant to edge be negative pulse, then in Figure 10 or door should Be changed to NAND gate either with door, realize negative logic or logic function.If the Edge check signal of input only has 3 When, for example, when only Edge check signal Y33, Y32, Y31, in Figure 10 or door, or for realizing not trigger region control Other doors of signal generator module function processed, for example, nor gate, NAND gate is also 3 in-gate circuits with door etc. accordingly.
Figure 11 is that split-phase closes waveform diagram in the middle part of delay protection unit.In Figure 11, the Y11 in voltage class encoded radio divides Not Fa Sheng rising edge change and failing edge changes, Y21 is the voltage class encoded radio after the Y11 delay T1 time；Fig. 7's In the detection circuit embodiment 1 that is delayed, T1 is determined by the product size (i.e. time constant size) of resistance RY0 and capacitor CY0；Scheming In 8 delay detection circuit embodiment 2, T1 is determined by the product size of resistance RY3 and capacitor CY3；Electricity is detected in the delay of Fig. 9 In road embodiment 3, T1 is determined by the gate delay time size of phase inverter FY11, FY12, FY13, FY14 itself.In Figure 11, letter Because the negative pulse width that Y11 rising edge generates is T2 in number YP1；In the delay detection circuit embodiment 1 of Fig. 7 and the delay of Fig. 9 In detection circuit embodiment 3, T2 is determined by the product size of resistance RY1 and capacitor CY1；Implement in the delay detection circuit of Fig. 8 In example 2, T2 is determined by the product size of resistance RY3 and capacitor CY3.In Figure 11, because what Y11 failing edge generated bears in signal YP2 Pulse width is T3；In the delay detection circuit embodiment 1 of Fig. 7 and the delay detection circuit embodiment 3 of Fig. 9, T3 is by resistance The product size of RY2 and capacitor CY2 determines；In the delay detection circuit embodiment 2 of Fig. 8, T3 is by resistance RY3 and capacitor CY3 Product size determine.In Figure 11,2 positive pulses in Edge check signal Y31 respectively in signal YP1 because of Y11 rising edge Because the negative pulse that Y11 failing edge generates corresponds in the negative pulse and signal YP2 of generation.It is located in Figure 11 voltage class encoded radio Y11 when rising edge occurs changing, no change has taken place by Y12, Y13, Y14 in voltage class encoded radio, its is corresponding at this time Edge check signal Y32, Y33, Y34 do not generate positive pulse；If when failing edge, which occurs, for Y11 changes, voltage class encoded radio In Y12 change simultaneously, no change has taken place by Y13, Y14, at this time in its corresponding Edge check signal Y32 generate with Y12 changes relevant positive pulse；Because Y33, Y34 maintain low level not change, it is not drawn into Figure 11.It is not touched according to above-mentioned The logic function of area's control signal generator module is sent out, not the single pulse width and input of trigger region control signal generator module output Edge check signal in generate widest pulse width in the input pulse of the pulse jointly identical.In Figure 11, do not trigger Area controls the 1st positive pulse in signal P4 and is generated by the 1st negative pulse in Edge check signal Y31, then the two width one It causes；The 2nd positive pulse in trigger region control signal P4 be not by the 2nd negative pulse and edge inspection in Edge check signal Y31 The negative pulse joint effect surveyed in signal Y32 generates, and width and width in 2 negative pulses for generating the positive pulse are widest Negative pulse width is identical；As can be seen from Figure 11, the negative pulse width in Y32 is wider, in the 2nd in P4 positive pulse width and Y23 Negative pulse width it is identical.This width difference is the difference because of the resistance, capacitance that determine T2, T3 in different delayed time detection circuit Caused by different.
In the delay detection circuit embodiment 1 in Fig. 7 delay protection unit, voltage class encoded radio changes to right When the delay time in the not trigger region control signal pulse forward position answered is the delay of FY10 in gate circuit FY1, FY4 and Figure 10 Between the sum of or gate circuit FY3, FY4 and Figure 10 in FY10 the sum of delay time；By multiplying for resistance RY0 and capacitor CY0 The range of choice of the signal delay time T1 for the voltage class encoded radio that product size determines is the ms order of magnitude, it is clear that is greater than voltage Grade encoded radio changed to the delay time in corresponding not trigger region control signal pulse forward position, i.e. grade encoded radio is believed Number delay is later than forward position moment of the pulse exported after voltage class encoded radio changes at the time of change.Strictly speaking, T1 actually includes the sum of lag time and the delay time of gate circuit FY0 caused by resistance RY0 and capacitor CY0.Fig. 7 In embodiment 1, in selection parameter, the value of the value and T3 that make T2 is all larger than the value of T1, changes grade encoded radio signal delay Meet the rear requirement along the moment of the pulse exported after need to changing earlier than voltage class encoded radio at the time of change.
It is delayed in detection circuit embodiment 2 in the delay protection unit of Fig. 8, voltage class encoded radio changes to right When the delay time in the not trigger region control signal pulse forward position answered is the delay of FY10 in gate circuit FY7, FY9 and Figure 10 Between the sum of or gate circuit FY8, FY9 and Figure 10 in FY10 the sum of delay time；T1 is the numerical value of the ms order of magnitude, is shown So, the signal delay time T1 of the voltage class encoded radio determined at this time by the product size of resistance RY3 and capacitor CY3 is greater than Voltage class encoded radio changed to the delay time in corresponding not trigger region control signal pulse forward position, i.e. voltage class Encoded radio signal delay is later than the forward position moment of the pulse exported after voltage class encoded radio changes at the time of change.Figure In 8 delay detection circuit embodiment 2, occur at the time of voltage class encoded radio signal delay changes with voltage class encoded radio The rear of the pulse exported after change is influenced by signal YP0 change along the moment；Voltage class encoded radio signal delay changes At the time of change for signal YP0 after delay again through gate circuit FY6；The pulse that voltage class encoded radio exports after changing It is rear along the moment be the sum of delay time again through FY10 in gate circuit FY7, FY9 and Figure 10, or letter after signal YP0 changes The sum of delay time again through FY10 in gate circuit FY8, FY9 and Figure 10 after number YP0 changes；Obviously, voltage class encodes at this time The rear of the pulse that value signal delay exports after changing at the time of change than voltage class encoded radio few passes through 2 along the moment The delay time of gate circuit, meeting at the time of voltage class encoded radio signal delay changes need to occur earlier than voltage class encoded radio The rear requirement along the moment of the pulse exported after change.
Figure 12 is the embodiment for interlocking control unit, and Figure 12 (a) is interlocking control unit embodiment 1, and YR1 therein is ROM memory.If the output voltage U12 of auto-transformer TB2 is low, U23 high in Fig. 2 auto compensating type main circuit embodiment 1； Voltage U23 is 2 times of voltage U12.Table 1 is to compensate control using Fig. 2 auto compensating type main circuit embodiment 1, utilizes figure The 4 analog-to-digital conversion coding unit embodiment 1 either analog-to-digital conversion coding unit embodiment 2 of Fig. 5, is divided into 7 for supply voltage A voltage class section, when forming 7 voltage class encoded radios by Y23, Y22, Y21 after Y13, Y12, Y11, or delay Carry out the logic true value table of logic control；AC supply voltage fluctuation range is 220V ± 10%, it is desirable that is stablized in 220V It is exported in the range of ± 2%.Using ROM memory realize interlocking control unit logic function when, P4, Y23-Y21 respectively according to The data output D0-D5 of the secondary address input end A3-A0 for being connected to ROM memory, ROM memory are to interlock patrolling for control unit Output is collected, 6 output signal P51-P56 form Trig control signal P5.
Table 1
In table 1, trigger region does not control invalidating signal, and P4 is equal to 0, and voltage class encoded radio is corresponding with voltage class 1-7 Value when, interlocking control unit control auto compensating type main circuit embodiment 1 carry out corresponding voltage compensation；For example, input electricity When pressure is minimum voltage class 1, control P51, P56 output remove to open bidirectional thyristor SR1, SR6 for 0, control P52 etc. other Output goes to turn off other bidirectional thyristors for 1, carries out positive benefit using the magnet exciting coil voltage that output voltage U12+U23 is TB1 It repays；When input voltage is voltage class 2, control P53, P56 output go to open bidirectional thyristor SR3, SR6, control P51 etc. for 0 Other outputs go to turn off other bidirectional thyristors for 1, carry out only with the magnet exciting coil voltage that output voltage U23 is TB1 positive Compensation；When input voltage is voltage class 4, control P55, P56 output goes to open bidirectional thyristor SR5, SR6 for 0, controls P51 It goes to turn off other bidirectional thyristors for 1 Deng other outputs, realizes 0 voltage compensation；When input voltage is voltage class 5, control P52, P53 output go to open bidirectional thyristor SR2, SR3 for 0, other outputs such as control P51 go to turn off other two-way brilliant locks for 1 Pipe carries out Contrary compensation only with the magnet exciting coil voltage that reversed output voltage U12 is TB1；Etc..When P4 is equal to 1, show There is fluctuation in AC supply voltage, voltage class encoded radio is made to produce variation, need to carry out the combination of thyristor switch group on-off The switching of state changes compensation way.In the handoff procedure of electronic switch, to avoid thyristor in thyristor switch group from switching When, because the factor that electronic switch is delayed to turn off causes power supply short circuit, for example, thyristor SR1, SR3 are simultaneously turned on and are caused short circuit Situations such as, when not trigger region controls the signal valid period, i.e. the P4 of embodiment is equal to 1, own in cutoff thyristor switching group Bidirectional thyristor, interlocking control unit control P51-P56 all output 1.
In table 1, M is equal to 7.Not when trigger region control invalidating signal (P4 be equal to 0), 7 voltage class encoded radio P3's has Effect encoded radio is corresponding with 7 groups of effective Trig control signals, accordingly realizes the control of 7 kinds of voltage compensation states；When P2 change makes P4 Effectively (P4 be equal to 1) when be corresponding with 1 group of effective Trig control signal, interlocking control unit exports altogether has 8 groups effectively to trigger control Signal.When P4 invalid (P4 is equal to 0), and when the voltage class encoded radio P3 for interlocking control unit input is invalid code value, mutually Lock control unit is corresponding with 1 group of specifically invalid Trig control signal.Using Fig. 4 analog-to-digital conversion coding unit embodiment 1 or Person is the analog-to-digital conversion coding unit embodiment 2 of Fig. 5, supply voltage is divided into 7 voltage class sections, by Y13, Y12, Y11 Export the efficient coding value of 7 voltage class encoded radios, Y13, Y12, Y11 either Y23, Y22, Y21 are only possible to that there are 1 nothings The output of encoded radio is imitated, is 111.In table 1, it is 1 which, which makes P56 output be 0, P51-P55 output,； The specific invalid practical control of the Trig control signal without thyristor, even if the triggering control for playing thyristor is made With also only making TB1 magnet exciting coil be connected to a tap and excitation voltage 0 of auto-transformer TB2, without voltage compensation； This 1 group specifically invalid Trig control signal be also an option that other not and can be carried out the triggering combination of voltage compensation, for example, making P55 output is 0, and others output is 1.
In table 1, low level is effective when the Trig control signal triggering bidirectional thyristor of interlocking control unit output is connected.Such as The Trig control signal that fruit interlocks control unit output requires to be that high level is effective when triggering bidirectional thyristor conducting, then table 1 is patrolled 1 in the output signal of volume truth table, which needs to change into 0,0, needs to change into 1；When realizing its function with ROM memory, storage The content of unit is according to 1 reverse phase of table.
Figure 12 (b) is interlocking control unit embodiment 2, and YR2 therein is ROM memory.If the main electricity of Fig. 3 auto compensating type In road embodiment 2, the output voltage U12 of auto-transformer TB2 is minimum, U23 highest；Voltage U23 is 3 times of voltage U12, voltage U34 is 2 times of voltage U12.Table 2 is to compensate control using Fig. 3 auto compensating type main circuit embodiment 2, utilizes the mould of Fig. 4 The either analog-to-digital conversion coding unit embodiment 2 of Fig. 5 of number transform coding unit embodiment 1, is divided into 10 electricity for supply voltage Grade interval is pressed, 10 voltage class are formed by Y24, Y23, Y22, Y21 after Y14, Y13, Y12, Y11, or delay and are compiled The logic true value table of logic control is carried out when code value；AC supply voltage fluctuation range is 220V+10% to 220V-20%, It asks to be stablized and be exported in the range of 220V ± 2%.When realizing its logic function using ROM memory YR2, input P4, Y24-Y21 is sequentially connected to the address end A4-A0 of ROM memory respectively, and the data output D0-D7 of ROM memory is mutual lock control The logic of unit processed exports, and 8 output signal P51-P58 form Trig control signal P5.
In table 2, trigger region does not control invalidating signal, and P4 is equal to 0, and voltage class encoded radio is corresponding with voltage class 1-10 Value when, interlocking control unit control auto compensating type main circuit embodiment 2 carry out corresponding voltage compensation；For example, input electricity When pressure is voltage class 7, control P57, P58 output go to open bidirectional thyristor SR7, SR8, other outputs such as control P51 for 0 It goes to turn off other bidirectional thyristors for 1, realizes 0 voltage compensation；When input voltage is voltage class 8, control P52, P53 output is 0 goes to open bidirectional thyristor SR2, SR3, other outputs such as control P51 go to turn off other bidirectional thyristors for 1, only with reversed The magnet exciting coil voltage that output voltage U12 is TB1 carries out Contrary compensation；When input voltage is voltage class 9, P56, P57 are controlled Output goes to open bidirectional thyristor SR6, SR7 for 0, other outputs such as control P51 are gone to turn off other bidirectional thyristors, only be adopted for 1 Contrary compensation is carried out with the magnet exciting coil voltage that reversed output voltage U34 is TB1；When input voltage is voltage class 10, control P54, P55 output go to open bidirectional thyristor SR4, SR5 for 0, other outputs such as control P51 go to turn off other two-way brilliant locks for 1 Pipe carries out Contrary compensation only with the magnet exciting coil voltage that reversed output voltage U23 is TB1；Input voltage is voltage class 6 When, control P51, P54, which export, to be gone to open bidirectional thyristor SR1, SR4 for 0, other outputs such as control P52 go to turn off other pairs for 1 To thyristor, positive compensation is carried out only with the magnet exciting coil voltage that output voltage U12 is TB1；Input voltage is voltage class 4 When, control P53, P56 output go to open bidirectional thyristor SR3, SR6 for 0, other outputs such as control P51 go to turn off other for 1 Bidirectional thyristor carries out positive compensation only with the magnet exciting coil voltage that output voltage U23 is TB1；Input voltage is voltage etc. When grade 3, control P51, P56 output go to open bidirectional thyristor SR1, SR6 for 0, other outputs such as control P52 go to turn off it for 1 His bidirectional thyristor carries out positive compensation using the magnet exciting coil voltage that output voltage U12+U23 is TB1；Input voltage is electricity When pressing grade 1, control P51, P58 output go to open bidirectional thyristor SR1, SR8 for 0, other outputs such as control P52 go to close for 1 Break other bidirectional thyristors, carries out positive compensation using the magnet exciting coil voltage that output voltage U12+U23+U34 is TB1；Deng Deng.Trigger region control signal is not effective, when P4 is equal to 1, shows that AC supply voltage has fluctuation, produces voltage class encoded radio Variation has been given birth to, has needed to carry out the switching of thyristor switch group on-off assembled state, has changed compensation way, cutoff thyristor is opened at this time All bidirectional thyristors of Guan Zuzhong, interlocking control unit control P51-P58 all output 1.
In table 2, M is equal to 10.Not when trigger region control invalidating signal (P4 be equal to 0), 10 voltage class encoded radio P3's Efficient coding value is corresponding with 10 groups of effective Trig control signals, accordingly realizes the control of 10 kinds of voltage compensation states；When P2 changes When making P4 effective (P4 is equal to 1), it is corresponding with 1 group of effective Trig control signal, interlocking control unit shares 11 groups and effectively triggers control Signal processed.When P4 invalid (P4 is equal to 0), and when the voltage class encoded radio P3 for interlocking control unit input is invalid code value, Interlocking control unit is corresponding with 1 group of specifically invalid Trig control signal；Utilize the analog-to-digital conversion coding unit embodiment 1 of Fig. 4 Either Fig. 5 analog-to-digital conversion coding unit embodiment 2, supply voltage is divided into 10 voltage class sections, by Y14, Y13, The voltage class encoded radio of Y12, Y11 composition exports the efficient coding value of 10 voltage class encoded radios altogether, and 4 voltage class are compiled There is likely to be the outputs of 6 invalid code values by code value Y14, Y13, Y12, Y11 or Y24, Y23, Y22, Y21, make mutually Lock control unit exports same 1 group of invalid Trig control signal；In table 2, which export P58 It is 1 for 0, P51-P57 output；The specific invalid practical control of the Trig control signal without thyristor, even if playing The triggering control action of thyristor also only makes TB1 magnet exciting coil be connected to a tap and excitation voltage of auto-transformer TB2 It is 0, without voltage compensation；This 1 group specifically invalid Trig control signal be also an option that other not can be carried out voltage compensation Triggering combination, for example, making P57 output for 0, others output is 1.
In table 2, low level is effective when the Trig control signal triggering bidirectional thyristor of interlocking control unit output is connected.Such as High level is effective when the Trig control signal that fruit interlocks control unit output requires triggering bidirectional thyristor to be connected, then 2 logic of table 1 in the output signal of truth table, which needs to change into 0,0, needs to change into 1；When realizing its function with ROM memory, storage is single The content of member is according to 2 reverse phase of table.
Table 2
Combination logic function in either 2 truth table of table of table 1, can also be using the other modes except ROM memory It goes to realize.
Figure 13 be trigger unit in trigger bidirectional thyristor SR1 trigger circuit embodiment, by altemating trigger optocoupler UG1, Resistance RG1, resistance RG2 composition, Trig control signal P51 low level are effective.Altemating trigger optocoupler UG1 can choose The phase shifts type bidirectional thyristor output light thermocouple such as MOC3021, MOC3022, MOC3023, MOC3051, MOC3052, MOC3053 Clutch.Power supply+VCCK is the controlled source controlled by error detection control unit.It triggers in Fig. 2 auto compensating type main circuit embodiment 1 Bidirectional thyristor SR2-SR8 in bidirectional thyristor SR2-SR6, or triggering Fig. 3 auto compensating type main circuit embodiment 2 Trigger circuit is as the circuit structure of triggering bidirectional thyristor SR1.The altemating trigger optocoupler UG1 of Figure 13 is exported from G11, G12 Trigger pulse and trigger unit in other altemating trigger optocouplers output trigger pulse collectively constitute trigger signal P6.
Figure 14 is error detection control unit embodiment, wherein YR3 is ROM memory, and ROM memory forms discrimination module, is used In judge input Trig control signal P5 whether be effective Trig control signal；Triode VT, triode VK1, triode VK2, relay coil KA, freewheeling diode VD, resistance RK1, resistance RK2, resistance RK3 composition protection control circuit.+ VCC2 is The power supply of relay coil and the source current of trigger unit controlled source.
The error detection control unit embodiment of Figure 14 is used for the triggering issued for Figure 12 (a) interlocking control unit embodiment 1 Control signal is judged that table 3 is to judge to interlock whether the Trig control signal that control unit embodiment 1 issues is effectively to trigger The logic true value table of signal is controlled, auto-transformer forms thyristor switch group by 3 taps, by 6 bidirectional thyristors at this time.
Table 3
When the Trig control signal that interlocking control unit embodiment 1 issues effectively touches for 8 groups listed by 8 rows of front in table 3 When hair controls 1 group in signal, the triggering control of discrimination module output differentiates that signal is effective, i.e. P7 is 1, expression triggering control letter Number be effective Trig control signal, triode VK1, VK2 conducting, controlled source+VCCK obtain it is electric, trigger unit work normally, according to Corresponding trigger pulse is issued according to Trig control signal.P7 be 1 simultaneously control triode VT conducting, relay coil KA obtain it is electric, It is closed the relay normally open switch KA-1 in Fig. 2 auto compensating type main circuit embodiment 1, relay normally closed switch KA-2 is disconnected It opens, thyristor switch group is in compensation work state.When the Trig control signal that interlocking control unit embodiment 1 issues is other Signal, when not being any 1 group in 8 groups of effective Trig control signals listed by 8 rows of front in table 3, the touching of discrimination module output Hair control differentiates that invalidating signal, i.e. P7 are 0, triode VK1, VK2 cut-off, controlled source+VCCK power loss, trigger unit not work Make, i.e., does not issue the trigger pulse of triggering thyristor.P7 is 0 while controlling triode VT cut-off, and relay coil KA power loss makes Relay normally open switch KA-1 in Fig. 2 auto compensating type main circuit embodiment 1 is disconnected, i.e. control disconnects the defeated of auto-transformer Enter side supply voltage, make the voltage 0 between all taps of auto-transformer, realizes the protection to thyristor switch group；Control Relay normally closed switch KA-2 closure, makes the voltage 0 being applied on TB1 magnet exciting coil.When interlocking control unit embodiment 1 Input is invalid code value, and when exporting invalid Trig control signal, from table 3 it can be seen that it is 0 that discrimination module, which equally export, Realize the protection to thyristor switch group；Therefore, either because the failure of code error occurs in analog-to-digital conversion coding unit Cause to output invalid code value, or interlocking control unit control mistake occurs and causes to output invalid triggering control letter Number, error detection control unit, which starts, protects thyristor switch group.When the logic true value table of table 3 is real using ROM memory Now, the address input of ROM memory needs 6, i.e. a0-a5 in table 3 is correspondingly connected with input signal P51-P56；ROM is deposited The data output of reservoir needs 1, i.e. d0 in table 3 is correspondingly connected with the control signal P7 of output.
When error detection control unit need for Figure 12 (b) interlocking control unit embodiment 2 issue Trig control signal into When row judges, table 4 is to judge to interlock whether the Trig control signal that control unit embodiment 2 issues is effective triggering control letter Number logic true value table, auto-transformer forms thyristor switch group by 4 taps, by 8 bidirectional thyristors at this time.
Table 4
When the Trig control signal that interlocking control unit embodiment 2 issues is effective for 11 groups listed by 11 rows of front in table 4 When 1 group in Trig control signal, the triggering control of discrimination module output differentiates that signal is effective, i.e. P7 is 1, indicates triggering control Signal is effective Trig control signal, and triode VK1, VK2 are connected, and controlled source+VCCK obtains electric, trigger unit normal work, Corresponding trigger pulse is issued according to Trig control signal.P7 is in 1 while 3 auto compensating type main circuit embodiment 2 of control figure Relay normally open switch KA- 1 be closed, relay normally closed switch KA-2 is disconnected, and circuit is in compensation work state.Work as interlocking Control unit embodiment 2 issue Trig control signal be other signals, be not in table 4 front 11 rows listed by 11 groups effectively touch When hair controls any 1 group in signal, the triggering control of discrimination module output differentiates that invalidating signal, i.e. P7 are 0, triode VK1, VK2 cut-off, controlled source+VCCK power loss, trigger unit do not work, i.e., do not issue the trigger pulse of triggering thyristor.P7 is 0 same When 3 auto compensating type main circuit embodiment 2 of control figure in relay normally open switch KA-1 disconnect, i.e., control disconnect self coupling become The input side supply voltage of depressor makes the voltage 0 between all taps of auto-transformer, realizes the guarantor to thyristor switch group Shield；Relay normally closed switch KA-2 closure is controlled, the voltage 0 being applied on TB1 magnet exciting coil is made.When interlocking control unit The input of embodiment 2 is invalid code value, and when exporting invalid Trig control signal, from table 4, it can be seen that discrimination module exports It is 0, realizes the protection to thyristor switch group；Similarly, either because code error occurs in analog-to-digital conversion coding unit Failure lead to output invalid code value, or there is control mistake and causes to output invalid triggering control in interlocking control unit Signal processed, error detection control unit, which starts, protects thyristor switch group.
When the logic true value table of table 4 is realized using ROM memory, for example, realizing error detection control using the embodiment of Figure 14 When the function of unit processed, the address input of the ROM memory YR3 in Figure 14 needs to be expanded to 8, i.e. address input needs a0- A7 is correspondingly connected with input signal P51-P58；The data output of ROM memory needs 1, i.e. d0 in table 4 is correspondingly connected with defeated Control signal P7 out.When error detection control unit judgement input Trig control signal be not effective Trig control signal, issue Protection control signal is to auto compensating type main circuit, and when thyristor switch group being made to be in guard mode, auto compensating type exchange is steady Depressor does not compensate input voltage, and the voltage of voltage-stablizer output is the AC supply voltage inputted.In thyristor switch When group is in guard mode, if the Trig control signal of error detection control unit judgement input reverts to effectively triggering control letter Number, then error detection control unit is automatically stopped the guard mode of thyristor switch group, and thyristor switch group is in compensation work again State.
Combination logic function in either 4 truth table of table of table 3, can also be using the other modes except ROM memory It goes to realize.
From above embodiment and its course of work it is found that as long as error detection control unit judges the triggering control letter of input Number it is not effective Trig control signal, i.e., when Trig control signal is invalid, is not then issuing the trigger pulse of triggering thyristor Meanwhile starting and thyristor switch group is made to be in guard mode；It is protected exporting effective Trig control signal by interlocking control unit Ipsilateral thyristor does not simultaneously turn in card auto compensating type main circuit thyristor switch group, realizes the same of the mutual lock control of thyristor When, also there is analog-to-digital conversion event to other improper control logic mistakes of appearance, including analog-to-digital conversion coding unit in system Barrier either logic error outputs invalid code value, and logic error occurs in interlocking control unit, outputs invalid triggering When controlling signal, is started by error detection control unit and thyristor switch group is made to be in guard mode；It is in thyristor switch group When guard mode, if error detection control unit judges that auto compensating type AC voltage regulator reenters normal logic control shape When the Trig control signal of state, i.e. error detection control unit judgement input reverts to effective Trig control signal, then it can stop automatically Only the guard mode of thyristor switch group and it is made to be in compensation work state again.Above-mentioned function is effectively strengthened for steady The protection for pressing through journey operation irregularity makes the more stable, reliable of single phase ac pressure stabilizing process.
In above each embodiment attached drawing, all ROM memories, logic gates and logic function integrated circuit are adopted It is powered with positive single supply+VCC.Except for the technical features described in the specification, auto compensating type AC voltage regulator control of the present invention is realized The other technologies of method processed are the routine techniques that those skilled in the art are grasped.

Claims (8)

1. a kind of auto compensating type AC voltage regulator control method, it is characterised in that: by AC supply voltage waving interval range Voltage be divided into multiple voltage class sections compensate control；By the on-off assembled state of thyristor in thyristor switch group 01 in the multiple output voltages of control selections auto-transformer or multiple voltage superpositions become as compensation The magnet exciting coil voltage of depressor realizes voltage compensation state corresponding with voltage class section；Each electricity of AC supply voltage Press the corresponding voltage compensation state of grade interval；The on-off assembled state of thyristor is by triggering control letter in thyristor switch group Number pass through trigger unit issue trigger pulse control；
Whether Trig control signal is correctly differentiated；When Trig control signal mistake, control disconnects auto-transformer Input side supply voltage, thyristor switch group enter guard mode；After thyristor switch group enters guard mode, triggering control letter When number reverting to correct signal, the automatic input side supply voltage for restoring auto-transformer exits the guarantor of thyristor bridge switching group Shield state；
AC supply voltage is sampled to obtain voltage class encoded radio, multiple efficient coding values in voltage class encoded radio It is corresponded with multiple voltage class sections；The voltage class section of AC supply voltage changes, and voltage class encoded radio changes When, change the on-off assembled state of thyristor in thyristor switch group accordingly to change compensation work state；Change thyristor to open When the on-off assembled state of Guan Zuzhong thyristor, between successive 2 kinds of on-off assembled states, not trigger region time is maintained, All thyristors in cutoff thyristor switching group；
The trigger region time is not realized by not trigger region control signal for maintenance one；Trigger region does not control signal in voltage class for control Encoded radio exports a pulse after changing；Trigger region control signal is not effective during exporting pulse, in non-output It is invalid during pulse；When trigger region control signal is not effective, not trigger region time is maintained；
The Trig control signal for controlling thyristor switch group is generated by the voltage class encoded radio control postponed；The voltage etc. of delay The grade coding value signal change moment is later than after voltage class encoded radio changes in not trigger region control signal before pulse Along the moment, and after changing earlier than voltage class encoded radio not in trigger region control signal pulse it is rear along the moment；
In the Trig control signal for controlling thyristor switch group, the effective Trig control signal of M+1 group is shared, wherein M group is for real The compensation control in existing M voltage class section of AC supply voltage, 1 group for all brilliant locks in cutoff thyristor switching group Pipe；The M is more than or equal to 2；
Effective Trig control signal for all thyristors in cutoff thyristor switching group has in not trigger region control signal It is exported when effect；The effective Trig control signal of M group that control is compensated for realizing M voltage class section of AC supply voltage, Trigger region is not controlled when invalidating signal and voltage class encoded radio are 1 in M efficient coding value and is exported.
2. auto compensating type AC voltage regulator control method according to claim 1, it is characterised in that: obtain voltage class Encoded radio is realized by analog-to-digital conversion coding unit；Analog-to-digital conversion coding unit carries out voltage sample, output to AC supply voltage Voltage class encoded radio.
3. auto compensating type AC voltage regulator control method according to claim 2, it is characterised in that: compiled to voltage class Code value is postponed and is generated not trigger region control signal and realized by delay protection unit；Delay protection unit input voltage grade Encoded radio, exports the voltage class encoded radio after postponing and trigger region does not control signal.
4. auto compensating type AC voltage regulator control method according to claim 3, it is characterised in that: output triggering control Signal is realized by interlocking control unit；Interlock control unit input delay after voltage class encoded radio and not trigger region control believe Number, output control thyristor switch group Trig control signal；When trigger region does not control invalidating signal and voltage class encoded radio is When invalid code value, interlocking control unit exports 1 group of specifically invalid Trig control signal.
5. auto compensating type AC voltage regulator control method according to claim 4, it is characterised in that: thyristor switch group The on-off assembled state of middle thyristor issues trigger pulse control by trigger unit by Trig control signal；When triggering control letter When number correct, the working power of trigger unit is opened, trigger unit issues corresponding brilliant lock according to the Trig control signal of input Pipe trigger pulse；When Trig control signal mistake, the working power of trigger unit is cut off, trigger unit stops issuing thyristor Trigger pulse.
6. auto compensating type AC voltage regulator control method according to claim 3, it is characterised in that: delay protection unit Signal generator module is controlled by delay detection module and not trigger region to form；It include K identical delays in delay detection module Detection circuit, it is each delay detection circuit input signal postpone after output signal, while to input letter Number carry out Edge check, export Edge check signal；K delay detection circuit carries out letter to K voltage class encoded radios respectively Number delay, the position the K voltage class encoded radio after postpone, and to K voltage class encoded radios progress Edge checks, obtain K Edge check signal；Trigger region does not control signal generator module and K Edge check signal of input is converted to not trigger region Control signal output.
7. auto compensating type AC voltage regulator control method according to claim 6, it is characterised in that: each delay detection Circuit includes resistance RY3, capacitor CY3, phase inverter FY5, phase inverter FY6, NAND gate FY7 or door FY8, NAND gate FY9；Instead Phase device FY5 input terminal is connected to input signal end；One end of resistance RY3 is connected to phase inverter FY5 output end, other end difference It is connected to the input of an input terminal, phase inverter FY6 of one end of capacitor CY3, an input terminal of NAND gate FY7 or door FY8 End；The other end of capacitor CY3 is connected to ground terminal, and another input terminal of NAND gate FY7 is connected to input signal end or door Another input terminal of FY8 is connected to input signal end；It is defeated that 2 input terminals of NAND gate FY9 are respectively connected to NAND gate FY7 Outlet or door FY8 output end；Phase inverter FY6 output end is the output signal end after delay；NAND gate FY9 output end is edge Detect signal output end.
8. auto compensating type AC voltage regulator control method according to claim 6, it is characterised in that: trigger region does not control Signal generator module is with K input signal end or door FY10；Or the K input signal end of door FY10 is respectively connected to K Edge check signal output end in a delay detection circuit；Or trigger region does not control signal for the output end output of door FY10.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111580428A (en) * 2020-04-29 2020-08-25 上海空间电源研究所 Instruction sending circuit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2251158Y (en) * 1995-07-05 1997-04-02 顾元章 Combined compensated type ac voltage stabilizer
CN201845250U (en) * 2010-09-30 2011-05-25 东莞市西屋电气设备制造有限公司 Intelligent digital control non-contact voltage stabilizer
CN104052303A (en) * 2013-03-13 2014-09-17 安徽集黎电气技术有限公司 Undisturbed switching mechanism of voltage-stabilization electricity-saving device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2251158Y (en) * 1995-07-05 1997-04-02 顾元章 Combined compensated type ac voltage stabilizer
CN201845250U (en) * 2010-09-30 2011-05-25 东莞市西屋电气设备制造有限公司 Intelligent digital control non-contact voltage stabilizer
CN104052303A (en) * 2013-03-13 2014-09-17 安徽集黎电气技术有限公司 Undisturbed switching mechanism of voltage-stabilization electricity-saving device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈将: "无触点大功率补偿式交流稳压电源的研究", 《中国优秀博硕士学位论文全文数据库》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111580428A (en) * 2020-04-29 2020-08-25 上海空间电源研究所 Instruction sending circuit

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