CN108347051A - A kind of mixing multiport electric and electronic power adjuster - Google Patents
A kind of mixing multiport electric and electronic power adjuster Download PDFInfo
- Publication number
- CN108347051A CN108347051A CN201810110195.3A CN201810110195A CN108347051A CN 108347051 A CN108347051 A CN 108347051A CN 201810110195 A CN201810110195 A CN 201810110195A CN 108347051 A CN108347051 A CN 108347051A
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- insulated gate
- gate bipolar
- bipolar transistor
- pressure stage
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- 238000002156 mixing Methods 0.000 title claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims description 43
- 238000004146 energy storage Methods 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 230000003137 locomotive effect Effects 0.000 abstract description 5
- 230000003993 interaction Effects 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000819 phase cycle Methods 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- H02J3/382—
-
- 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
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of mixing multiport electric and electronic power adjusters, are made of hiigh pressure stage, isolation level and low-pressure stage tertiary structure；Hiigh pressure stage accesses traction power supply net by cascade connection multi-level circuit structure, and isolation level circuit includes high-frequency inverter circuit, three winding high frequency transformer and rectifier circuit portion, and low-pressure stage includes DC bus and connects the port of DC bus and new energy.The present invention connects electric and electronic power adjuster and new energy by multigroup three-winding transformer, realize the complementation and interaction of locomotive load and grid-connected power generation system, the on-site elimination and balance for realizing new energy output power, improve the stability and efficiency of energy utilization of system.
Description
Technical field
The present invention relates to electric and electronic power adjuster, especially a kind of mixing multiport electricity suitable for new energy access
Power electronic power regulator.
Background technology
As electric railway is towards high speed, powerful development, the power quality problem of electric system becomes more next
It is most important.High-speed railway tractive power supply system generates negative-sequence current, in electric system due to using single phase power supply mode
Power generation, transmission of electricity and the operation of transformer equipment bring serious harm, seriously affected the safety and economic operation of electric system.Separately
Outside, the harmonic wave that high-speed railway electric locomotive generates also reduces the reliability of its power supply system and higher level's electric system.Therefore, must
Must adopt an effective measure the negative phase-sequence for inhibiting high-speed railway power supply system to generate, idle and harmonic current.
With the development of power electronic technique, it is widely used the electric system such as SVC, STACOM or APF benefit both at home and abroad
Device is repaid, the three-phase side or traction side of tractive transformer are installed in, high-speed railway tractive power supply system is carried out idle
And harmonic compensation, reduce negative phase-sequence and improves power factor.Also have at present by installing electric and electronic power adjuster in traction side
Device, being unique in that for railway power electronic power regulator can be directly realized by turning for active power while compensating reactive power
It moves, and has the function of active power filtering, function is more powerful.Especially high-speed railway electric locomotive is AC Drive, PWM mostly
Rectifier system, simple SVC are limited to balance system voltage, inhibition voltage fluctuation effect；Compared to STATCOM, due to railway power
Electronic power regulator is connected to traction power supply arm side, relatively low, the required step-down transformer stress levels of connection voltage
It is relatively low.
Two voltage-source types that the structure of traditional railway electric and electronic power adjuster can be equivalent to back to back structure are inverse
Become device, one bulky capacitor of DC side parallel, exchange side tap is stored in electric substation's two-phase supply arm by the bulky capacitor of DC side
It releases energy and realizes the transfer of both sides power to administer power quality problem.But the presence of traditional railway power governor is asked as follows
Topic：
（1）DC side can only realize that power transfer, DC bus capacitor limit the degree of power transfer by DC bus capacitor, also
Limit the ability to work of power governor.
（2）The stabilization of DC capacitor voltage is the premise of system worked well, but capacitance voltage can only pass through two
Outer voltage control is added in the corresponding control strategy of voltage source inverter and realizes that capacitance voltage is stablized, so capacitance voltage is steady
Surely directly affect whether system can work normally.
（3）Traditional power governor, using the back-to-back multi-parallel structure of modularization, each module is adopted using a centre
With a DC capacitor, unified DC bus is not formed, is not suitable for the access of the new energy resources systems such as large-scale photovoltaic, wind-powered electricity generation,
Difficulty is sent in generation of electricity by new energy outside.
Invention content
The technical problem to be solved by the present invention is in view of the shortcomings of the prior art, provide a kind of mixing multiport electric power electricity
Sub- power governor improves the regulating power of railway power regulator, realizes the mutual branch of railway traction net and micro-grid system
Support, improves the energy utilization rate of new energy.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of mixing multiport power electronics work(
Rate adjuster, including sequentially connected hiigh pressure stage, isolation level and low-pressure stage；The hiigh pressure stage passes through cascade connection multi-level circuit structure
Access the two-phase traction power supply arm of high-speed railway tractive power supply system；The isolation level includes sequentially connected high-frequency inversion electricity
Road, three winding high frequency transformer and rectification circuit；The DC interface of the high-frequency inverter circuit is connect with the hiigh pressure stage；It is described
Low-pressure stage includes DC bus；The DC bus is connect with the rectification circuit, connectivity port；The connectivity port connects outside
New energy module.
The hiigh pressure stage two phase structure is identical, and each phase includes N number of cascade first power conversion modules；First work(
The AC port of rate conversion module is connected with the phase traction power supply arm in tractive power supply system.
First power conversion modules, that is, single-phase bridge circuit, the single-phase bridge circuit include four and carry instead simultaneously
The insulated gate bipolar transistor of union II pole pipe；The collector of four insulated gate bipolar transistors respectively with respective afterflow two
The cathode of pole pipe is connected, the emitters of four insulated gate bipolar transistors respectively with the anode phase of respective fly-wheel diode
Connection；The collector of the emitter of first insulated gate bipolar transistor and the second insulated gate bipolar transistor is connected and makees
For the AC port A of the first power conversion modules, the emitter of third insulated gate bipolar transistor and the 4th insulated gate bipolar
The collector of transistor npn npn is connected and as the AC port B of the first power conversion modules, the first insulated gate bipolar crystal
The DC terminal that the collector of pipe is connected with the collector of third insulated gate bipolar transistor as the first power conversion modules
The positive C of mouth, the emitter of the second insulated gate bipolar transistor are connected with the emitter of the 4th insulated gate bipolar transistor
Meet the cathode D as the DC port of the first power conversion modules.
The high-frequency inverter circuit two phase structure of the isolation level is identical, per mutually including N number of second power conversion modules；Each
The DC interface of second power conversion modules connects with hiigh pressure stage with the DC port of corresponding first power conversion modules
It connects, and is incorporated to capacitance at DC interface；The AC port of the second power conversion modules in one phase of the high-frequency inverter circuit
The AC port of the second power conversion modules corresponding with another phase is connected to three winding high frequency transformer primary side simultaneously
Two around group interface, the input as three winding high frequency transformer primary side.
The isolation level includes N number of three winding high frequency transformer.
The rectification circuit of the isolation level includes N number of third power conversion modules；The third power conversion modules exchange
Port connects the vice-side winding of corresponding three winding high frequency transformer, and DC interface is connected with low-pressure stage DC bus.
The DC port of the third power conversion modules is connected with DC bus, while being incorporated to electricity in DC port
Hold.
The connectivity port, that is, two-way DC/DC circuits, the two-way DC/DC circuits include two and carry anti-paralleled diode
Insulated gate bipolar transistor, the collector point of the 5th insulated gate bipolar transistor and the 6th insulated gate bipolar transistor
It is not connected with the cathode of respective fly-wheel diode, the 5th insulated gate bipolar transistor and the 6th insulated gate bipolar
The emitter of transistor is connected with the anode of respective fly-wheel diode respectively；The current collection of 5th insulated gate bipolar transistor
Port E of the pole as connection DC bus anode, the emitter of the 6th insulated gate bipolar transistor is as connection DC bus
The port F of cathode, the emitter of the 5th insulated gate bipolar transistor and the collector of the 6th insulated gate bipolar transistor are logical
Inductance connection energy storage device or new energy module are crossed as port G, the emitter of the 6th insulated gate bipolar transistor is as company
Meet energy storage device or the port H of new energy module.
Compared with prior art, the advantageous effect of present invention is that：
（1）Traditional railway power governor power forwarding function is realized by the energy transmission between three-winding transformer winding,
Interconnection and intercommunication between hiigh pressure stage and low-pressure stage i.e. micro-capacitance sensor are realized by transformer primary pair side simultaneously, improve railway work(
The regulating power of rate adjuster；
（2）The degree of stability that capacitance voltage can be improved by the corresponding control of micro-capacitance sensor, to improve railway power regulator
The degree of stability of system；Railway power regulator can also regard power supply or the load of micro-capacitance sensor as simultaneously, and railway may be implemented and lead
Draw the mutual support of net and micro-grid system；
（3）By railway power regulator, locomotive load can be assigned as the load of micro-capacitance sensor, realize generation of electricity by new energy on the spot
Consumption and balance, realize the complementation and interaction between locomotive load and new energy, can increase the application approach of micro-capacitance sensor, improve
The energy utilization rate of new energy.
The power transfer ability and job stability of traditional railway power governor are limited to DC bus capacitor, and micro-capacitance sensor
On the one hand can discharge and absorb energy can increase the power regulating range of railway power regulator, on the other hand, Ke Yitong
It crosses micro-capacitance sensor and railway power regulator jointly controls and carrys out stable DC capacitance voltage, improve the stability of system.
Description of the drawings
Fig. 1 is the tertiary structure figure of the present invention；
Fig. 2 is the main circuit overall structure figure of the present invention；
Fig. 3 is the structure chart of power conversion modules in the present invention；
Fig. 4 is the port organization figure that connection new energy is connect with DC bus in the present invention.
Specific implementation mode
Referring to Fig.1, the electric and electronic power adjuster of the mixing multiport proposed by the present invention suitable for new energy access,
It is made of hiigh pressure stage, isolation level and low-pressure stage tertiary structure；Hiigh pressure stage accesses traction power supply by cascade connection multi-level circuit structure
Net, isolation level include high-frequency inverter circuit, high frequency transformer and rectifier circuit portion, and isolation level passes through the straight of high-frequency inverter circuit
Stream interface is connected with hiigh pressure stage, is connected with the DC bus of low-pressure stage by the DC interface of rectification circuit；Low-pressure stage packet
It includes DC bus and connects the port of DC bus and new energy.
The main circuit with reference to shown in Fig. 2, hiigh pressure stage is two phase structure and two phase structure is identical, per mutually all by N number of power conversion
Module-cascade forms, i.e., the AC port of each power conversion modules cascades successively, passes through a filter inductance and voltage class
It is connected for the phase supply arm in the tractive power supply system of 27.5kV；The DC port of power conversion modules and isolation level high frequency
Corresponding DC port is connected in inverter circuit.
With reference to power conversion modules circuit shown in Fig. 3, power conversion circuit is single-phase full bridge structure, including four carry
Insulated gate bipolar transistor T1, T2, T3 and T4 of anti-paralleled diode；The collector of T1, T2, T3 and T4 respectively with it is respective
The cathode of fly-wheel diode is connected, and the emitter of T1, T2, T3 and T4 are connected with the anode of respective fly-wheel diode respectively
It connects；The emitter of T1 is connected with the collector of T2 and the collector phase of the emitter and T4 of AC port A, T3 as module
Connect and the collector of AC port B, T1 as module be connected with the collector of T3 as module DC port just
The emitter of pole C, T2 are connected the cathode D as the DC port of module with the emitter of T4.
With reference to main circuit shown in Fig. 2, the high-frequency inverter circuit of isolation level is two phase structure and, every phase identical per phase structure
There are N number of power conversion modules；High-frequency inverter circuit is per the DC interface of power conversion modules in phase with hiigh pressure stage with corresponding
The DC port of power conversion modules connects, and is incorporated to capacitance in interface；Power conversion modules in one phase of high-frequency inverter circuit
The AC port of AC port power module corresponding with another phase be connected to two of high frequency transformer primary side simultaneously
Around group interface, the input as high frequency transformer and primary side.
With reference to main circuit shown in Fig. 2, isolation level shares N number of high frequency transformer, and high frequency transformer is two winding pair of primary side
The three-winding transformer of one winding of side, two windings of primary side connect corresponding one group of AC port in isolation level inverter circuit respectively
It is connected, a winding on secondary side connects the AC port of the power conversion modules of the rectification circuit of isolation level.
With reference to main circuit shown in Fig. 2, the rectification circuit of isolation level includes N number of independent power conversion modules, and power is whole
Flow module AC port connects the vice-side winding of corresponding high frequency transformer, and DC port is connected with low-pressure stage DC bus.
The main circuit with reference to shown in Fig. 2, low-pressure stage DC bus-bar voltage are 400V, pass through capacitance and isolation level rectification circuit work(
The DC port of rate conversion module is connected；Photovoltaic generating module, energy-storage units module are connected by port with DC bus.
The main circuit with reference to shown in Fig. 2, low-pressure stage include the DC bus that voltage class is 400V and connection new energy module
With the port of energy-storage module.
With reference to port circuit structure chart shown in Fig. 4, port circuit is two-way DC/DC structures, including two with it is anti-simultaneously
The insulated gate bipolar transistor T5 and T6 of union II pole pipe；The collector of the T5 and T6 cathode with respective fly-wheel diode respectively
It is connected, the emitter of the T5 and T6 are connected with the anode of respective fly-wheel diode respectively, and the collector of T5 is as company
Meet the port E of busbar anode, the port F for the connection busbar cathode that the emitter of T6 is used as, the emitter of T5 and the collector of T6
It is used as port G by inductance connection energy storage device or new energy, the emitter of T6 is as the end for connecting energy storage device or new energy
Mouth H.
Claims (8)
1. a kind of mixing multiport electric and electronic power adjuster, which is characterized in that including sequentially connected hiigh pressure stage, isolation level
And low-pressure stage；The two-phase that the hiigh pressure stage accesses high-speed railway tractive power supply system by cascade connection multi-level circuit structure draws confession
Electric arm；The isolation level includes sequentially connected high-frequency inverter circuit, three winding high frequency transformer and rectification circuit；The high frequency
The DC interface of inverter circuit is connect with the hiigh pressure stage；The low-pressure stage includes DC bus；The DC bus with it is described
Rectification circuit, connectivity port connection；The connectivity port connects external new energy module.
2. mixing multiport electric and electronic power adjuster according to claim 1, which is characterized in that the hiigh pressure stage two
Phase structure is identical, and each phase includes N number of cascade first power conversion modules；The AC port of first power conversion modules
It is connect with the phase traction power supply arm in tractive power supply system.
3. mixing multiport electric and electronic power adjuster according to claim 2, which is characterized in that first work(
Rate conversion module, that is, single-phase bridge circuit, the single-phase bridge circuit include four insulated gate bipolars for carrying anti-paralleled diode
Transistor npn npn；The collector of four insulated gate bipolar transistors is connected with the cathode of respective fly-wheel diode respectively, and four
The emitter of a insulated gate bipolar transistor is connected with the anode of respective fly-wheel diode respectively；First insulated gate bipolar
The collector of the emitter of transistor npn npn and the second insulated gate bipolar transistor is connected and as the first power conversion modules
AC port A, the collector phase of the emitter of third insulated gate bipolar transistor and the 4th insulated gate bipolar transistor
It connects and as the AC port B of the first power conversion modules, the collector and third of the first insulated gate bipolar transistor is exhausted
The collector of edge grid bipolar transistor is connected the positive C as the DC port of the first power conversion modules, the second insulation
The emitter of grid bipolar transistor is connected with the emitter of the 4th insulated gate bipolar transistor as the first power conversion
The cathode D of the DC port of module.
4. mixing multiport electric and electronic power adjuster according to claim 2, which is characterized in that the isolation level
High-frequency inverter circuit two phase structure is identical, per mutually including N number of second power conversion modules；Each second power conversion modules
DC interface and hiigh pressure stage connected with the DC port of corresponding first power conversion modules, and be incorporated at DC interface
Capacitance；The AC port corresponding with another phase second of the second power conversion modules in one phase of the high-frequency inverter circuit
The AC port of power conversion modules is connected to two of three winding high frequency transformer primary side around group interface, as three winding simultaneously
The input of high frequency transformer primary side.
5. mixing multiport electric and electronic power adjuster according to claim 4, which is characterized in that the isolation level packet
Include N number of three winding high frequency transformer.
6. mixing multiport electric and electronic power adjuster according to claim 5, which is characterized in that the isolation level
Rectification circuit includes N number of third power conversion modules；The third power conversion modules AC port connects corresponding three winding
The vice-side winding of high frequency transformer, DC interface are connected with low-pressure stage DC bus.
7. mixing multiport electric and electronic power adjuster according to claim 6, which is characterized in that the third power
The DC port of conversion module is connected with DC bus, while being incorporated to capacitance in DC port.
8. mixing multiport electric and electronic power adjuster according to claim 1, which is characterized in that the connectivity port
I.e. two-way DC/DC circuits, the two-way DC/DC circuits include two insulated gate bipolar crystal for carrying anti-paralleled diode
Pipe, the collector of the 5th insulated gate bipolar transistor and the 6th insulated gate bipolar transistor respectively with two pole of respective afterflow
The cathode of pipe is connected, the emitter difference of the 5th insulated gate bipolar transistor and the 6th insulated gate bipolar transistor
It is connected with the anode of respective fly-wheel diode；The collector of 5th insulated gate bipolar transistor is as connection DC bus
The port E of anode, the emitter of the 6th insulated gate bipolar transistor is as the port F for connecting DC bus cathode, pentasyllabic quatrain
The emitter of edge grid bipolar transistor and the collector of the 6th insulated gate bipolar transistor pass through inductance connection energy storage device
Or new energy module, as port G, the emitter of the 6th insulated gate bipolar transistor is as connection energy storage device or new energy
The port H of module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810110195.3A CN108347051A (en) | 2018-02-05 | 2018-02-05 | A kind of mixing multiport electric and electronic power adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810110195.3A CN108347051A (en) | 2018-02-05 | 2018-02-05 | A kind of mixing multiport electric and electronic power adjuster |
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| Publication Number | Publication Date |
|---|---|
| CN108347051A true CN108347051A (en) | 2018-07-31 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810110195.3A Pending CN108347051A (en) | 2018-02-05 | 2018-02-05 | A kind of mixing multiport electric and electronic power adjuster |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039072A (en) * | 2018-08-21 | 2018-12-18 | 南京南瑞继保电气有限公司 | A kind of bipolar two-way DC converter and its control method and control device |
| CN109617426A (en) * | 2018-12-19 | 2019-04-12 | 苏州大学 | A kind of electric power electric transformer circuit, electric power electric transformer and control method |
| CN109888836A (en) * | 2019-04-18 | 2019-06-14 | 河北工程大学 | A kind of photovoltaic DC-to-AC converter topological structure based on electric power electric transformer |
| US20200076311A1 (en) * | 2017-04-19 | 2020-03-05 | Robert Bosch Gmbh | Isolated dc/dc converter for controlling power flows between three dc terminals |
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| CN104410061A (en) * | 2014-03-21 | 2015-03-11 | 南车株洲电力机车研究所有限公司 | Cascade double-star-type DC powering and electric energy quality improving system for traction power supply |
| CN105048788A (en) * | 2015-06-04 | 2015-11-11 | 广西电网有限责任公司电力科学研究院 | Multi-port power electronic transformer of mixed cascading structure, and control method thereof |
| CN107124096A (en) * | 2017-03-23 | 2017-09-01 | 北京交通大学 | Fault redundance protection system and the failure removal method of a kind of electric power electric transformer |
| CN206564465U (en) * | 2017-03-10 | 2017-10-17 | 山东大学 | A kind of many electric power electric transformer tractive power supply systems of low-pressure side common DC bus |
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2018
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410061A (en) * | 2014-03-21 | 2015-03-11 | 南车株洲电力机车研究所有限公司 | Cascade double-star-type DC powering and electric energy quality improving system for traction power supply |
| CN105048788A (en) * | 2015-06-04 | 2015-11-11 | 广西电网有限责任公司电力科学研究院 | Multi-port power electronic transformer of mixed cascading structure, and control method thereof |
| CN206564465U (en) * | 2017-03-10 | 2017-10-17 | 山东大学 | A kind of many electric power electric transformer tractive power supply systems of low-pressure side common DC bus |
| CN107124096A (en) * | 2017-03-23 | 2017-09-01 | 北京交通大学 | Fault redundance protection system and the failure removal method of a kind of electric power electric transformer |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200076311A1 (en) * | 2017-04-19 | 2020-03-05 | Robert Bosch Gmbh | Isolated dc/dc converter for controlling power flows between three dc terminals |
| US10819241B2 (en) * | 2017-04-19 | 2020-10-27 | Robert Bosch Gmbh | Isolated DC/DC converter for controlling power flows between three DC terminals |
| CN109039072A (en) * | 2018-08-21 | 2018-12-18 | 南京南瑞继保电气有限公司 | A kind of bipolar two-way DC converter and its control method and control device |
| US11223291B2 (en) | 2018-08-21 | 2022-01-11 | Nr Electric Co., Ltd. | Bipolar bidirectional DC converter, and control method and control device therefor |
| CN109617426A (en) * | 2018-12-19 | 2019-04-12 | 苏州大学 | A kind of electric power electric transformer circuit, electric power electric transformer and control method |
| CN109617426B (en) * | 2018-12-19 | 2020-12-29 | 苏州大学 | Power electronic transformer circuit, power electronic transformer and control method |
| CN109888836A (en) * | 2019-04-18 | 2019-06-14 | 河北工程大学 | A kind of photovoltaic DC-to-AC converter topological structure based on electric power electric transformer |
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Application publication date: 20180731 |