CN106452151A - Single-phase inverter for motor train unit - Google Patents
Single-phase inverter for motor train unit Download PDFInfo
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- CN106452151A CN106452151A CN201611094968.0A CN201611094968A CN106452151A CN 106452151 A CN106452151 A CN 106452151A CN 201611094968 A CN201611094968 A CN 201611094968A CN 106452151 A CN106452151 A CN 106452151A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
Abstract
The invention relates to a single-phase inverter for a motor train unit. The single-phase inverter comprises a DC/DC boost unit and an inverter unit that are connected successively. The input terminal of the DC/DC boost unit is connected with a DC 110-V voltage input. The DC/DC boost unit consists of a phase-shift full-bridge soft switching circuit, a transformer T1 and a rectifier filter circuit that are connected successively; and the phase-shift full-bridge soft switching circuit includes a first IGBT module Q01 and a second IGBT module Q2 that are connected in parallel and each IGBT module includes two IGBTs connected in series and two diodes connected with the IGBTs in parallel. One end of a primary side of the transformer T1 is connected between the first IGBT and the second IGBT and the other end is connected between the third IGBT and the fourth IGBT; each IGBT is connected in parallel with a capacitor; and a primary-side equivalent inductor of the transformer T1, a first capacitor C31, a second capacitor C32, a third capacitor C33, and a fourth capacitor C34 form a resonance circuit. According to the invention, the provided single-phase inverter based on a control strategy of first boosting and second inversion has characteristics of small size, light weight, and low cost.
Description
Technical field
The invention belongs to power converter topology field, is related to a kind of inverter, specifically, being related to one kind can be by
DC110V unidirectional current is changed into the single-phase inverter of AC220V alternating current, it is adaptable to EMUs.
Background technology
Inverter is the changer for direct current energy being transformed into AC energy, by inverter bridge, control system and filter circuit
Composition.Existing EMUs single-phase inverter, its operation principle is that directly DC input voitage DC110V is passed through full-bridge inverting,
Boosting and electrical equipment buffer action being realized through an Industrial Frequency Transformer again, inverter ac output voltage is made for AC220V.This
The power supply topologies of mode, due to employing Industrial Frequency Transformer so that the volume of inverter is big, heavy, and price compares
Costliness, high cost.
Content of the invention
The problems referred to above such as volume that the present invention is present with single-phase inverter for existing EMUs is big, cost is high, there is provided
A kind of small volume, the EMUs single-phase inverter of lightweight, low cost.
In order to achieve the above object, the invention provides a kind of EMUs single-phase inverter, pre- including be sequentially connected
Charhing unit, DC/DC boosting unit and inversion unit, the input connection DC110V control source of the precharge unit；Institute
State phase shifting full bridge soft switch circuit, transformator T1 and current rectifying and wave filtering circuit that DC/DC boosting unit includes to be sequentially connected, the shifting
Phase full bridge soft switch circuit includes the first IGBT module Q01 being connected in parallel and the second IGBT module Q2；First IGBT module bag
The IGBT and the 2nd IGBT being connected in series is included, and is parallel to the diode of an IGBT and is parallel to the two of the 2nd IGBT
Pole pipe；Second IGBT module includes the 3rd IGBT being connected in series and the 4th IGBT, and the diode for being parallel to the 3rd IGBT
With the diode for being parallel to the 4th IGBT；Former limit one end of transformator T1 is connected between an IGBT and the 2nd IGBT, another
End is connected between the 3rd IGBT and the 4th IGBT；Each IGBT is connected in parallel to a capacitor, and the former limit of transformator T1 is equivalent
Inductance and the first capacitor C31, the second capacitor C32, the 3rd capacitor C33, the 4th capacitor C34 composition resonance circuit, use
Open and shutoff in the no-voltage of control IGBT.
Preferably, the current rectifying and wave filtering circuit is included the rectification circuit being connected with transformator T1 secondary and is connected with rectification unit
Filter circuit is connect, is connected in parallel between the rectification circuit and filter circuit and is made up of absorption resistance R03 and Absorption Capacitance C13
Absorbing circuit.
Preferably, the rectification circuit be full bridge rectifier, including the first diode circuit D14 for being connected in parallel and the
Two diode circuit D15, the first diode circuit is made up of the first diode and the second Diode series, the second diode circuit
It is made up of the 3rd diode and the 4th Diode series, secondary one end of transformator T1 is connected to the first diode and the two or two pole
Between pipe, the other end is connected between the 3rd diode and the 4th diode；The filter circuit include by filter inductance L04 and
The LC wave filter of filter capacitor C14 composition, the filter capacitor C14 is connected in parallel to power resistor R04, the power resistor
R04 is connected in parallel Absorption Capacitance C19.
Further, it is provided between the precharge unit and the DC/DC boosting unit by reactor L01 and support electricity
Hold the input filter that C04 is composed in series；Counnter attack diode D01 is in series between the reactor L01 and Support Capacitor C04；
The Support Capacitor C04 is parallel with power resistor R02, for the electric charge of the Support Capacitor C04 that releases；The power resistor R02 is simultaneously
Thin-film capacitor C10 is associated with, for absorbing the due to voltage spikes for producing in dc bus.
Further, differential mode common mode filtering is connected between the input of the precharge unit and DC110V control source
Circuit, for carrying out differential mode common mode filtering to DC110V input voltage.
Preferably, the differential mode common mode filtering circuit is by the magnet ring L02 being surrounded on DC110V dc bus and three
Filter capacitor constitute, wherein, the first filter capacitor C01 be composed in series by the second filter capacitor C02 and the 3rd filter capacitor C03
Series circuit be connected in parallel successively, the second filter capacitor C02 and the 3rd filter capacitor C03 indirectly.
Further, the input of the precharge unit is connected with for the input voltage for detecting precharge unit
The one voltage sensor TV1 and current sensor TA1 for detecting input current, the outfan of the precharge unit is connected with
For detecting the output voltage second voltage sensor TV2 of precharge unit.
Preferably, the precharge unit includes main contactor KM101, pre-charge contactor KM102 and pre-charge resistance
R01, after pre-charge contactor KM102 is connected with pre-charge resistance R01, in parallel with main contactor KM101.
Preferably, the inversion unit is included the inverter circuit being connected with DC/DC boosting unit and is connected with inverter circuit
Filter circuit, the inverter circuit includes the 3rd IGBT module being connected in parallel and the 4th IGBT module, the 3rd IGBT module string
5th IGBT and the 6th IGBT of connection connection, the 4th IGBT module includes the 7th IGBT being connected in series and the 8th IGBT, each
IGBT is parallel with a diode；The filter circuit is made up of filter inductance L05, filter capacitor C22 and filter capacitor C23
LC low pass filter, one end of filter inductance L05 is connected between the 5th IGBT and the 6th IGBT, and the other end is connected to the 7th
Between IGBT and the 8th IGBT.
Further, the outfan of the filter circuit is connected with the tertiary voltage sensor for detecting output voltage
TV3 and the second current sensor TA2 for detecting output current；Zero line N220V and earth lead PE in inversion unit output
Between be connected with the resistance R05 of parallel connection and resistance R06, the resistance R05 and resistance R06 be 0 Ω resistance, for by zero line and ground
Line PE short circuit.
Compared with prior art, the beneficial effects of the present invention is：
(1) DC/DC boosting unit of the present invention is entered using the phase shifting full bridge soft switch circuit being made up of IGBT and transformator T1
Row boosting, the former limit equivalent inductance of transformator T1 and the first capacitor C31, the second capacitor C32, the 3rd capacitor C33, the 4th
Capacitor C34 constitutes resonance circuit, when phase shifting full bridge soft switch circuit works, due to the resonance effect of inductance capacitance, makes
IGBT realizes no-voltage and turns on and off, i.e. Sofe Switch working condition, therefore, it is possible to substantially reduce the switching loss of IGBT, improves
The efficiency of power supply.As the switching frequency of phase-shifting full-bridge IGBT is 20kHz, therefore, transformator T1 is high frequency transformer, volume phase
Much smaller for Industrial Frequency Transformer, with respect to the existing inverter with Industrial Frequency Transformer, provided by the present invention single-phase
Inverter small volume, lightweight, with low cost.
(2) inversion unit of the present invention, using the full bridge inverter being made up of IGBT, is the modulation of unipolarity frequency multiplication SPWM,
The switching frequency of IGBT is 5kHz, and it is low to be reacted to the LC being made up of filter inductance L05, filter capacitor C22 and filter capacitor C23
The voltage ripple frequency of bandpass filter is 10kHz, and relatively low IGBT switching frequency can reduce the switching loss of IGBT, frequency multiplication
Afterwards, the inductance value of LC low pass filter and capacitance can reduce accordingly, especially reduce filter inductance L05 volume and
Weight, reduces the THD of output waveform, further reduces the volume and weight of single-phase inverter of the present invention, makes cost more
Cheap.
(3) present invention is using the control strategy of inversion after first boosting, and prime is topological using phase-shifting full-bridge, by high frequency transformation
DC input voitage DC110V is boosted to DC340V by device T1, and rear class is obtained through full-bridge inverting using full-bridge inverting topology
AC220V is exported, and this control strategy makes single-phase inverter of the present invention have the characteristics that small volume, lightweight and low cost.
Description of the drawings
Fig. 1 is the structured flowchart of one embodiment of the invention.
Fig. 2 is the circuit theory diagrams of DC/DC boosting unit in one embodiment of the invention.
Fig. 3 is that in one embodiment of the invention, IGBT opens sequential chart.
Fig. 4 is the circuit theory diagrams of inversion unit in one embodiment of the invention.
Fig. 5 is inverter unipolarity frequency multiplication control principle drawing in one embodiment of the invention.
Fig. 6 is the circuit theory diagrams of input filter and precharge unit in one embodiment of the invention.
Fig. 7 is the circuit theory diagrams of differential mode common mode filtering circuit in one embodiment of the invention.
Fig. 8 is the circuit theory diagrams of one embodiment of the invention.
Specific embodiment
Below, by exemplary embodiment, the present invention is specifically described.It should be appreciated, however, that not entering one
In the case of step narration, the element in an embodiment, structure and features can also be advantageously incorporated into other embodiment
In.Additionally, term " first ", " second ", " the 3rd ", " the 4th ", " the 5th " " the 6th " " the 7th " " the 8th " are only used for describing mesh
, and it is not intended that indicating or hint relative importance.
Referring to Fig. 1, in one embodiment of the invention, there is provided a kind of EMUs single-phase inverter, including successively
Connection DC/DC boosting unit and inversion unit, the input connection DC110V control source of the DC/DC boosting unit.DC/DC
The input voltage of DC110V is boosted to DC340V and transmits to inversion unit by boosting unit, by inversion unit by after boosting
The inversion of DC340V voltage is AC220V voltage output.
In order to realize for input voltage DC110V boosting to DC340V, referring to Fig. 2, the DC/DC boosting unit include according to
The phase shifting full bridge soft switch circuit of secondary connection, transformator T1 and current rectifying and wave filtering circuit, the phase shifting full bridge soft switch circuit includes
The first IGBT module Q01 being connected in parallel and the second IGBT module Q2；First IGBT module includes the IGBT being connected in series
With the 2nd IGBT, the second IGBT module includes the 3rd IGBT being connected in series and the 4th IGBT,；Former limit one end of transformator T1 is even
It is connected between an IGBT and the 2nd IGBT, the other end is connected between the 3rd IGBT and the 4th IGBT；Each IGBT is in parallel even
It is connected to a capacitor, the former limit equivalent inductance of transformator T1 and the first capacitor C31, the second capacitor C32, the 3rd capacitor
C33, the 4th capacitor C34 constitute resonance circuit, and the no-voltage for controlling IGBT is opened and shutoff.When DC/DC boosting unit
During normal work, due to transformator T1 former limit equivalent inductance and the first capacitor C31, the second capacitor C32, the 3rd capacitor
C33, the resonance effect of the 4th tetra- capacitors of capacitor C34 so that IGBT realizes no-voltage and opens in shutoff, that is, so-called
Sofe Switch working condition, therefore, it is possible to substantially reduce the switching loss of IGBT, improve the efficiency of power supply.
As phase shifting full bridge soft switch circuit is the full-bridge IGBT on-off circuit that four IGBT are formed, describe for convenience complete
The operation principle of bridge Sofe Switch, is the leading-bridge, the 3rd referring to Fig. 2, definition the first IGBT Q01A and the 2nd IGBT Q01B
IGBT Q02A and the 4th IGBT Q02B is lagging leg, and IGBT opens sequential chart referring to Fig. 3.
Before the instant t 0, an IGBT Q01A and the 4th IGBT Q02B are simultaneously turned on, and are first turned off first in the t0 moment
IGBT Q01A, primary current is transferred to the first capacitor C31 and the 3rd capacitor C33 branch road from an IGBT Q01A, and first
Capacitor C31 is started to charge up, and the 3rd capacitor C33 starts electric discharge, due to there is the first capacitor C31 and the 3rd capacitor C33, the
One IGBT Q01A is zero voltage turn-off.Electricity in the presence of the former limit equivalent inductance of transformator T1, on the first capacitor C31
Line ball is raised, and the voltage linear on the 3rd capacitor C33 reduces, and the voltage on the 3rd capacitor C33 of t1 moment drops to
0, diode D01B is turned on naturally, and it is that no-voltage is open-minded now to open the 2nd IGBT Q01B, the 2nd IGBT Q01B.Equally when the
When two IGBT Q01B are turned off, an IGBT Q01A is opened, its operation principle all fours.
For lagging leg, in the t2 moment, due to the effect of the second capacitor C32 and the 4th capacitor C34, the 4th is closed
During IGBT Q02B, the voltage at the 4th IGBT Q02B two ends is 0, it is achieved that the zero voltage turn-off of the 4th IGBT Q02B.Due to becoming
The effect of depressor T1 former limit equivalent inductance, the 4th capacitor C34 is started to charge up and the second capacitor C32 starts electric discharge, in t3
Carve the voltage on the second capacitor C32 and drop to 0, diode D02A is turned on naturally, now opens the 3rd IGBT Q02A, then
It is open-minded that three IGBT Q02A realize 0 voltage.Equally when the 3rd IGBT Q02A shutoff, the 4th IGBT Q02B are opened, its work original
Reason all fours.
The switching frequency of full-bridge IGBT is 20kHz, and therefore, the transformator T1 for boosting is high frequency transformer, volume phase
The Industrial Frequency Transformer for adopting for existing inverter is much smaller so that the single-phase inverter described in the embodiment of the present invention has body
Product feature little, lightweight, with low cost.
Switching characteristic due to each switching tube can not possibly be identical with drive waveforms, is therefore carried in each cycle
The Flux consumption of transformer primary side can be uneven, bias phenomenon occurs, causes transformator magnetic saturation.Transformator T1 magnetic bias is prevented, ginseng
See Fig. 2, in a preferred embodiment, between the former limit of transformator T1 and the second IGBT module Q2, be connected with capacitance
C35, after transformator T1 former limit series connection capacitance C35, the Dc bias being directly proportional to unbalanced Flux consumption will be by this electricity
Appearance is filtered, and makes the volt-seconds value that transformer primary side is balanced.
Referring to Fig. 2, in the present invention preferably an embodiment, the current rectifying and wave filtering circuit includes to be connected with transformator T1 secondary
Rectification circuit and be connected filter circuit with rectification unit.In a preferred embodiment, the rectification circuit is full-bridge
Rectification circuit, including the first diode circuit D14 for being connected in parallel and the second diode circuit D15, the first diode circuit by
First diode and the second Diode series composition, the second diode circuit is by the 3rd diode and the 4th Diode series group
Become, secondary one end of transformator T1 is connected between the first diode and the second diode, and the other end is connected to the 3rd diode
And the 4th between diode；The filter circuit includes the LC wave filter being made up of filter inductance L04 and filter capacitor C14, institute
State filter capacitor C14 and be connected in parallel to power resistor R04, the power resistor R04 and be connected in parallel Absorption Capacitance C19.
In order to the DC340V voltage inversion after DC/DC boosting unit boosts is AC220V voltage, referring to Fig. 4, at this
In a bright preferably embodiment, the inversion unit is included the inverter circuit being connected with DC/DC boosting unit and is connected with inverter circuit
Filter circuit is connect, the inverter circuit includes the 3rd IGBT module being connected in parallel and the 4th IGBT module, the 3rd IGBT module
The 5th IGBT being connected in series and the 6th IGBT, the 4th IGBT module includes the 7th IGBT being connected in series and the 8th IGBT, per
Individual IGBT is parallel with a diode；The filter circuit is to be made up of filter inductance L05, filter capacitor C22 and filter capacitor C23
LC low pass filter, one end of filter inductance L05 is connected between the 5th IGBT and the 6th IGBT, and the other end is connected to the 7th
Between IGBT and the 8th IGBT.
Inversion unit, using the full bridge inverter being made up of IGBT, is the modulation of unipolarity frequency multiplication SPWM, and switching frequency is
5kHz, and the voltage arteries and veins for reflecting to the LC low pass filter being made up of filter inductance L05, filter capacitor C22 and filter capacitor C23
Dynamic frequency is 10kHz.Referring to Fig. 5, inversion unit unipolarity frequency multiplication SPWM modulation principle is：In switch periods, in t1-
In t2 the and t3-t4 time, the 5th IGBT Q03A and the 8th IGBT Q04B are simultaneously turned on twice so that be added in by filter inductance
The frequency of the voltage waveform of the LC low pass filter of L05, filter capacitor C22 and filter capacitor C23 composition is IGBT switching frequency
Twice.
Referring to Fig. 4, in another preferred embodiment of the present invention, the outfan of the filter circuit is connected with defeated for detecting
Go out the tertiary voltage sensor TV3 and the second current sensor TA2 for detecting output current of voltage.Wherein：Voltage sensor
Device TV3 detects inverter output voltage, feeds back to control system, by voltage control loop control inverter output voltage is
AC220V.Current sensor TA12 detects output current, when there is overload output or output short-circuit fault occurs in inverter,
Inverter restarts or shuts down, and protects inverter.
Referring to Fig. 4, in another preferred embodiment of the present invention, in the zero line N220V and earth lead PE of inversion unit output
Between be connected with parallel connection resistance R05 and resistance R06, the resistance R05 and resistance R06 be 0 Ω resistance, for inversion is exported
Zero line N220 and ground wire PE short circuit.
In order to reduce the voltage ripple of rear class DC/DC boosting unit input, while preventing rear class DC/DC boosting unit from producing
High-frequency harmonic flee to come in and go out dc bus on, referring to Fig. 6, in an alternative embodiment of the invention, the DC110V voltage is defeated
Entering and the input filter being composed in series with Support Capacitor C04 by reactor L01 is provided between the DC/DC boosting unit, leads to
Cross input filter the voltage of input to DC/DC boosting unit is filtered, suppress the interference of voltage ripple.
Referring to Fig. 6, during in order to prevent input voltage both positive and negative polarity reversed, there is return circuit, main circuit device is destroyed, at this
Invent in a preferred embodiment, between the reactor L01 and Support Capacitor C04, be in series with counnter attack diode D01.
Referring to Fig. 6, when inverter quits work, for the electric charge of the Support Capacitor C04 that releases, another excellent in the present invention
Select in embodiment, power resistor R02 is parallel with the Support Capacitor C04, for the electric charge of the Support Capacitor C04 that releases.When inverse
When change device quits work, Support Capacitor C04 internal memory contains substantial amounts of electric charge, needs to be released by power resistor R02, makes to prop up
Voltage on support electric capacity C04 dropped to below 36V within 5 minutes.The resistance of power resistor R02 is needed according to Support Capacitor
The capacitance of C04 is chosen.
Referring to Fig. 6, in order to the due to voltage spikes for producing on dc bus is absorbed, the IGBT mould in DC/DC boosting unit is protected
Block, in another preferred embodiment of the present invention, is directly parallel with thin-film capacitor C10 in the IGBT module, thin-film capacitor C10's
Value is 0.47uF, as thin-film capacitor C10 is the smaller high voltage thin film electric capacity of a capacitance, is inhaled using thin-film capacitor C10
Receive the due to voltage spikes for producing in the precharge unit.
As the capacitance of Support Capacitor C04 is than larger, before electricity do not gone up by inverter, the two ends electricity of Support Capacitor C04
Pressed as 0V, the upper electricity moment, input DC110V is applied directly to C04 two ends, can form very big dash current, affects Support Capacitor
The service life of C04.Referring to Fig. 6, in order to reduce the dash current of Support Capacitor C04, increase the use longevity of Support Capacitor C04
Life, in an embodiment of the present invention, is provided with precharge unit between the DC110V control source and input filter.At this
In a bright preferred embodiment, the precharge unit includes main contactor KM101, pre-charge contactor KM102 and precharge electricity
Resistance R01, after pre-charge contactor KM102 is connected with pre-charge resistance R01, in parallel with main contactor KM101.The upper electricity moment,
DC110V voltage passes through pre-charge resistance R01 current limliting, so that the voltage on Support Capacitor C04 is slowly increased, and protects Support Capacitor
C04, when the voltage on Support Capacitor C04 is close to input voltage, is closed again main contactor KM101, closes pre-charge controller
KM102.
Referring to Fig. 6, in an embodiment of the present invention, the input of the precharge unit is connected with for detecting precharge
The first voltage sensor TV1 of the input voltage of the unit and current sensor TA1 for detecting input current, the precharge
The outfan of unit is connected with the output voltage second voltage sensor TV2 for detecting precharge unit.When preliminary filling makes electrical contact with
When the input voltage of the first voltage sensor TV1 detection on front side of device KM102 is normal working voltage, pre-charge contactor is closed
KM102, enters line precharge by pre-charge resistance R01 to input Support Capacitor C04.After the several seconds, second voltage sensor
The detection voltage value of TV2 is close to input voltage DC110V, and now precharge terminates, and closes main contactor KM101.
Referring to Fig. 7, in order to suppress the electromagnetic interference of input voltage, in still another embodiment of the process, the precharge is single
Differential mode common mode filtering circuit is connected between the input of unit and DC110V control source, for carrying out to DC110V input voltage
Differential mode common mode filtering.Referring to Fig. 7, in a preferred embodiment, the differential mode common mode filtering circuit is by being surrounded on
Magnet ring L02 on DC110V dc bus and three filter capacitors composition, wherein, the first filter capacitor C01 with filtered by second
The series circuit that ripple electric capacity C02 is composed in series with the 3rd filter capacitor C03 is connected in parallel successively, the second filter capacitor C02 and
Three filter capacitor C03 indirectly.
In one optimum embodiment of the present invention, referring to Fig. 8, a kind of EMUs single-phase inversion provided in the present embodiment
Device, including all technical characteristics described in above-mentioned all embodiments.
Above-described embodiment is used for explaining the present invention, rather than limits the invention, in spirit and the right of the present invention
In the protection domain of requirement, any modifications and changes that the present invention is made, both fall within protection scope of the present invention.
Claims (10)
1. a kind of EMUs single-phase inverter, it is characterised in that including being sequentially connected DC/DC boosting unit and inversion unit,
The input connection DC110V control source of the DC/DC boosting unit；The DC/DC boosting unit includes the shifting being sequentially connected
Phase full bridge soft switch circuit, transformator T1 and current rectifying and wave filtering circuit, the phase shifting full bridge soft switch circuit includes to be connected in parallel
First IGBT module Q01 and the second IGBT module Q2；First IGBT module includes the IGBT being connected in series and the 2nd IGBT,
And be parallel to the diode of an IGBT and be parallel to the diode of the 2nd IGBT；Second IGBT module includes to be connected in series
3rd IGBT and the 4th IGBT, and be parallel to the diode of the 3rd IGBT and be parallel to the diode of the 4th IGBT；Transformator
Former limit one end of T1 is connected between an IGBT and the 2nd IGBT, and the other end is connected between the 3rd IGBT and the 4th IGBT；
Each IGBT is connected in parallel to a capacitor, the former limit equivalent inductance of transformator T1 and the first capacitor C31, the second capacitor
C32, the 3rd capacitor C33, the 4th capacitor C34 composition resonance circuit, the no-voltage for controlling IGBT is opened and shutoff.
2. EMUs single-phase inverter as claimed in claim 1, it is characterised in that the current rectifying and wave filtering circuit includes and change
Rectification circuit and be connected filter circuit with rectification unit that depressor T1 secondary connects, between the rectification circuit and filter circuit simultaneously
Connection is connected with the absorbing circuit being made up of absorption resistance R03 and Absorption Capacitance C13.
3. EMUs single-phase inverter as claimed in claim 2, it is characterised in that the rectification circuit is full-bridge rectification electricity
Road, including the first diode circuit D14 for being connected in parallel and the second diode circuit D15, the first diode circuit is by the one or two
Pole pipe and the second Diode series composition, the second diode circuit is made up of the 3rd diode and the 4th Diode series, transformation
Secondary one end of device T1 is connected between the first diode and the second diode, and the other end is connected to the 3rd diode and the four or two
Between pole pipe；The filter circuit includes the LC wave filter being made up of filter inductance L04 and filter capacitor C14, the filtered electrical
Appearance C14 is connected in parallel to power resistor R04, the power resistor R04 and is connected in parallel Absorption Capacitance C19.
4. the EMUs single-phase inverter as described in claim 1 or 3, it is characterised in that the DC110V control source with
It is provided with, between the DC/DC boosting unit, the input filter being composed in series by reactor L01 with Support Capacitor C04；The electricity
Counnter attack diode D01 is in series between anti-device L01 and Support Capacitor C04；The Support Capacitor C04 is parallel with power resistor R02,
Electric charge for the Support Capacitor C04 that releases；The power resistor R02 is parallel with thin-film capacitor C10, for absorbing in dc bus
The due to voltage spikes of generation.
5. EMUs single-phase inverter as claimed in claim 4, it is characterised in that the DC110V control source and input
Precharge unit is provided between wave filter, for reducing the dash current of Support Capacitor C04；The input of the precharge unit
Differential mode common mode filtering circuit is connected between DC110V control source, for carrying out differential mode common mode filter to DC110V input voltage
Ripple.
6. EMUs single-phase inverter as claimed in claim 5, it is characterised in that the differential mode common mode filtering circuit is by ring
The magnet ring L02 that is around on DC110V dc bus and three filter capacitors compositions, wherein, the first filter capacitor C01 with by the
Two filter capacitor C02 are in parallel with the series circuit that the 3rd filter capacitor C03 is composed in series, the filter of the second filter capacitor C02 and the 3rd
Ripple electric capacity C03 indirectly.
7. the EMUs single-phase inverter as described in claim 5 or 6, it is characterised in that the input of the precharge unit
End is connected with for the first voltage sensor TV1 of the input voltage that detects precharge unit and the electricity for detecting input current
Flow sensor TA1, the outfan of the precharge unit is connected with the output voltage second voltage for detecting precharge unit
Sensor TV2.
8. EMUs single-phase inverter as claimed in claim 7, it is characterised in that the precharge unit includes main contact
Device KM101, pre-charge contactor KM102 and pre-charge resistance R01, pre-charge contactor KM102 is connected with pre-charge resistance R01
Afterwards, in parallel with main contactor KM101.
9. the EMUs single-phase inverter as described in claim 1 or 8, it is characterised in that the inversion unit includes and DC/
The inverter circuit of DC boosting unit connection and be connected filter circuit with inverter circuit, the inverter circuit include to be connected in parallel the
Three IGBT module and the 4th IGBT module, the 5th IGBT and the 6th IGBT that the 3rd IGBT module is connected in series, the 4th IGBT mould
Block includes that the 7th IGBT being connected in series and the 8th IGBT, each IGBT are parallel with a diode；The filter circuit be by filtering
Ripple inductance L05 filter capacitor C22 and the LC low pass filter of filter capacitor C23 connection in series-parallel composition, one end of filter inductance L05
It is connected between the 5th IGBT and the 6th IGBT, the other end is connected between the 7th IGBT and the 8th IGBT.
10. EMUs single-phase inverter as claimed in claim 9, it is characterised in that the outfan of the filter circuit is even
The tertiary voltage sensor TV3 and the second current sensor TA2 for detecting output current being connected to for detecting output voltage；
Resistance R05 in parallel and resistance R06, the resistance are connected between the zero line N220V and earth lead PE of inversion unit output
R05 and resistance R06 is 0 Ω resistance, for by zero line and ground wire PE short circuit.
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| CN201611094968.0A CN106452151A (en) | 2016-12-02 | 2016-12-02 | Single-phase inverter for motor train unit |
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| CN201611094968.0A CN106452151A (en) | 2016-12-02 | 2016-12-02 | Single-phase inverter for motor train unit |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070282A (en) * | 2017-05-17 | 2017-08-18 | 中国铁道科学研究院 | A kind of AuCT, traction power unit and vehicle |
| CN107086806A (en) * | 2017-05-17 | 2017-08-22 | 中国铁道科学研究院 | A kind of AuCT and its control method |
| CN108039763A (en) * | 2017-12-29 | 2018-05-15 | 上海瑞伯德智能系统股份有限公司 | A kind of high power DC charging circuit |
| CN109941124A (en) * | 2019-02-14 | 2019-06-28 | 深圳市永联科技股份有限公司 | Charging pile and its charging module and charging and voltage stabilizing control method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6483731B1 (en) * | 2000-07-31 | 2002-11-19 | Vanner, Inc. | Alexander topology resonance energy conversion and inversion circuit utilizing a series capacitance multi-voltage resonance section |
| CN101604916A (en) * | 2009-07-07 | 2009-12-16 | 南京航空航天大学 | Based on the pi-type auxiliary network Zero-voltage switch full-bridge direct current converter |
| CN101697458A (en) * | 2009-10-26 | 2010-04-21 | 株洲南车时代电气股份有限公司 | Three-phase auxiliary inverter |
| CN101860245A (en) * | 2010-04-09 | 2010-10-13 | 南京航空航天大学 | Medium-power two-stage three-phase static converter |
| CN103944395A (en) * | 2014-04-04 | 2014-07-23 | 上海电机学院 | Preceding stage DC converter for proton exchange membrane fuel cell and construction method thereof |
| CN104052079A (en) * | 2013-03-15 | 2014-09-17 | 余名俊 | Electric energy feedback type electronic load |
| CN104135059A (en) * | 2014-08-24 | 2014-11-05 | 曲阜师范大学 | Portable multifunctional alternating current power source |
| CN204119036U (en) * | 2014-07-07 | 2015-01-21 | 福建星云电子股份有限公司 | A kind of two-way phase shifting full bridge soft switch circuit |
-
2016
- 2016-12-02 CN CN201611094968.0A patent/CN106452151A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6483731B1 (en) * | 2000-07-31 | 2002-11-19 | Vanner, Inc. | Alexander topology resonance energy conversion and inversion circuit utilizing a series capacitance multi-voltage resonance section |
| CN101604916A (en) * | 2009-07-07 | 2009-12-16 | 南京航空航天大学 | Based on the pi-type auxiliary network Zero-voltage switch full-bridge direct current converter |
| CN101697458A (en) * | 2009-10-26 | 2010-04-21 | 株洲南车时代电气股份有限公司 | Three-phase auxiliary inverter |
| CN101860245A (en) * | 2010-04-09 | 2010-10-13 | 南京航空航天大学 | Medium-power two-stage three-phase static converter |
| CN104052079A (en) * | 2013-03-15 | 2014-09-17 | 余名俊 | Electric energy feedback type electronic load |
| CN103944395A (en) * | 2014-04-04 | 2014-07-23 | 上海电机学院 | Preceding stage DC converter for proton exchange membrane fuel cell and construction method thereof |
| CN204119036U (en) * | 2014-07-07 | 2015-01-21 | 福建星云电子股份有限公司 | A kind of two-way phase shifting full bridge soft switch circuit |
| CN104135059A (en) * | 2014-08-24 | 2014-11-05 | 曲阜师范大学 | Portable multifunctional alternating current power source |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086806A (en) * | 2017-05-17 | 2017-08-22 | 中国铁道科学研究院 | A kind of AuCT and its control method |
| CN107086806B (en) * | 2017-05-17 | 2024-01-09 | 中国铁道科学研究院集团有限公司 | Auxiliary converter and control method thereof |
| CN107070282A (en) * | 2017-05-17 | 2017-08-18 | 中国铁道科学研究院 | A kind of AuCT, traction power unit and vehicle |
| CN111316550A (en) * | 2017-09-11 | 2020-06-19 | 法雷奥电机控制系统公司 | Voltage converter and associated charger on a motor vehicle |
| CN108039763A (en) * | 2017-12-29 | 2018-05-15 | 上海瑞伯德智能系统股份有限公司 | A kind of high power DC charging circuit |
| CN110739876B (en) * | 2018-07-20 | 2020-10-02 | 郑州宇通客车股份有限公司 | Inverter control method and device |
| CN110739876A (en) * | 2018-07-20 | 2020-01-31 | 郑州宇通客车股份有限公司 | inverter control method and device |
| CN111162568A (en) * | 2018-11-08 | 2020-05-15 | 中车永济电机有限公司 | Charging circuit, electronic device and control method |
| CN111251911A (en) * | 2018-11-30 | 2020-06-09 | 比亚迪股份有限公司 | Electric automobile, charger thereof and charger control method |
| CN111251911B (en) * | 2018-11-30 | 2021-12-07 | 比亚迪股份有限公司 | Electric automobile, charger thereof and charger control method |
| CN109941124A (en) * | 2019-02-14 | 2019-06-28 | 深圳市永联科技股份有限公司 | Charging pile and its charging module and charging and voltage stabilizing control method |
| CN110481363A (en) * | 2019-08-26 | 2019-11-22 | 中车青岛四方车辆研究所有限公司 | Charger module and circuit |
| CN110481363B (en) * | 2019-08-26 | 2020-11-03 | 中车青岛四方车辆研究所有限公司 | Charger module and circuit |
| CN114157161A (en) * | 2021-12-07 | 2022-03-08 | 南京志卓电子科技有限公司 | Be applied to rail vehicle's single-phase dc-to-ac converter |
| CN114157161B (en) * | 2021-12-07 | 2024-04-19 | 南京志卓电子科技有限公司 | Single-phase inverter applied to railway vehicle |
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