CN205212714U - Power electronic transformer and rail vehicle electric power system with control unit - Google Patents
Power electronic transformer and rail vehicle electric power system with control unit Download PDFInfo
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- CN205212714U CN205212714U CN201520949926.5U CN201520949926U CN205212714U CN 205212714 U CN205212714 U CN 205212714U CN 201520949926 U CN201520949926 U CN 201520949926U CN 205212714 U CN205212714 U CN 205212714U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
An embodiment of the utility model provides a power electronic transformer and rail vehicle electric power system with control unit, the power electronic transformer who has the control unit includes: the control unit and power electronic transformer, the control unit includes: a main control unit and N subcontrol ware, power electronic transformer includes: an input inductance and a N power unit, power unit includes: interconnect's H bridging parallel operation and direct current - direct current DCDC converter, wherein, the DCDC converter includes a DC converter, high -frequency transformer and the 2nd DC converter that connects gradually, and the main control unit is used for controlling the voltage balance control algorithm of power electronic transformer's overall function and H bridging parallel operation, and each subcontrol ware is used for controlling the power unit rather than corresponding. A maintain that is used for the structure of keep -It -Simple -Control unit, is convenient for to the power electronic transformer who has the control unit .
Description
Technical field
The utility model embodiment relates to power electronics control technology field, particularly relates to a kind of electric power electric transformer with control unit and rail vehicle electric power system.
Background technology
In vehicle electrical system, the voltage that railway power supply grid side provides is about 25 kilovolts (volt is called for short V), the voltage that locomotive uses is about 800V-3000V, therefore, before locomotive power supply, need to carry out transformation by transformer to the voltage of grid side.
At present, the transformer used in vehicle electrical system can be electric power electric transformer, electric power electric transformer is made up of input inductance and multiple power cell usually, each power cell comprises multiple power electronic device, by control device, the overall logic of electric power electric transformer, each power cell internal logic and each power electronic device are controlled, realize the transformation function of electric power electric transformer; In the prior art, usual employing control device controls the overall logic of electric power electric transformer, each power cell internal logic and each power electronic device, is integrated with all functions controlled electric power electric transformer in this control device.
But, because the power electronic device in electric power electric transformer is more, the overall logic of electric power electric transformer and each power cell internal logic comparatively complicated, make in control device integrated more to the controlling functions of electric power electric transformer, and the complex structure of control device, and then cause bringing difficulty to the later maintenance of control device.
Utility model content
The utility model embodiment provides a kind of electric power electric transformer with control unit and rail vehicle electric power system, simplifies the structure of control unit, is convenient to the maintenance to the electric power electric transformer with control unit.
First aspect, the utility model embodiment provides a kind of electric power electric transformer with control unit, comprising: control unit and electric power electric transformer;
Described control unit comprises: master controller and N number of sub-controller;
Described electric power electric transformer comprises: input inductance and N number of power cell;
Described power cell comprises: interconnective H bridging parallel operation and DC-to-DC DC/DC converter, wherein, described DC/DC converter comprises: the DC converter connected successively, high frequency transformer and the 2nd DC converter, the input of described H bridging parallel operation is connected with the output of described input inductance, and the described input of input inductance is connected with the input of electric power electric transformer;
Described master controller is connected with the input of electric power electric transformer, the output of electric power electric transformer;
Described master controller is connected with each sub-controller, each sub-controller connects with the control end of the H bridging parallel operation in corresponding power cell respectively, and each sub-controller connects with the output of the 2nd DC converter in the input of the DC converter in the control end of the DC/DC converter in corresponding power cell, described DC/DC converter, the output of a described DC converter and described DC/DC converter respectively;
Described master controller is used for, gather the first voltage signal and first current signal of the input of described electric power electric transformer, and gather the second voltage signal and second current signal of the output of described electric power electric transformer, according to described first voltage signal, first current signal, second voltage signal and described second current signal generate the balance of voltage modulation signal of the H bridging parallel operation of each power cell, and described balance of voltage modulation signal is sent to corresponding sub-controller, H bridge drive singal is generated according to described balance of voltage modulation signal to make described sub-controller,
Described sub-controller is used for, and generates H bridge drive singal, and described H bridge drive singal is sent to the control end of H bridging parallel operation according to the balance of voltage modulation signal that described master controller sends; Gather the 3rd current signal of the tertiary voltage signal of the input of a DC converter described in described DC/DC converter and the output of a described DC converter, and gather the 4th current signal of the output of the 2nd DC converter in described DC/DC converter, generate DC/DC converter drive singal according to tertiary voltage signal, the 3rd current signal and the 4th current signal, and described DC/DC converter drive singal is sent to the control end of DC/DC converter.
As above with the electric power electric transformer of control unit, described master controller comprises:
Main signal acquisition module, host CPU, N number of main communication interface;
Described main signal acquisition module is connected with the input of described electric power electric transformer, the output of electric power electric transformer and described host CPU, for gathering described first voltage signal, described first current signal, described second voltage signal and described second current signal, and described first voltage signal, described first current signal, described second voltage signal and described second current signal are sent to described host CPU;
Described host CPU is connected with described sub-controller by described main communication interface, for generating the balance of voltage modulation signal of the H bridging parallel operation of each power cell according to described first voltage signal, the first current signal, the second voltage signal and described second current signal, and described balance of voltage modulation signal correspondence is sent to described sub-controller.
As above with the electric power electric transformer of control unit, described master controller, also comprises:
Main power source module, described main power source module is connected to power with described CPU, main signal acquisition module, main communication interface.
As above with the electric power electric transformer of control unit, described sub-controller, comprising:
Sub-signal acquisition module, point CPU, at least three points of communication interfaces;
Output and the described point of CPU of the 2nd DC converter in the output of described sub-signal acquisition module and the input of the DC converter in DC/DC converter, a described DC converter, DC/DC converter are connected, for gathering described tertiary voltage signal, described 3rd current signal and described 4th current signal, and described tertiary voltage signal, described 3rd current signal and described 4th current signal are sent to described point CPU;
Described point of CPU is used for, and generates DC/DC converter drive singal according to described tertiary voltage signal, described 3rd current signal and described 4th current signal;
Described point of CPU is connected with described master controller by described point of communication interface, for obtaining the balance of voltage modulation signal that master controller sends, and generates H bridge drive singal according to described balance of voltage modulation signal;
Described point of CPU is also connected with the control end of described DC/DC converter and the control end of H bridging parallel operation by described point of communication interface, for by the control end transmission DC/DC converter drive singal of described point of communication interface to described DC/DC converter, by the control end transmission H bridge drive singal of described point of communication interface to described H bridging parallel operation.
As above with the electric power electric transformer of control unit, described sub-controller, also comprises:
Independent power source module, described independent power source module is connected to power with described point of CPU, sub-signal acquisition module, a point communication interface.
As above with the electric power electric transformer of control unit, each sub-controller is arranged on the low-voltage module in the DC/DC converter in corresponding power cell respectively.
Second aspect, the utility model embodiment provides a kind of rail vehicle electric power system, comprising: the electric power electric transformer with control unit described in above-mentioned any one of first aspect and the traction invertor be connected with the output of described electric power electric transformer.
The electric power electric transformer with control unit that the utility model embodiment provides and rail vehicle electric power system, electric power electric transformer with control unit comprises electric power electric transformer and control unit, control unit comprises master controller and multiple sub-controller, the control to electric power electric transformer is jointly realized by master controller and multiple sub-controller, master controller and each sub-controller control the disparate modules in electric power electric transformer respectively, make controlling functions integrated in main controller and each sub-controller less, and then the structure of master controller and each sub-controller is simple, be easy to the maintenance to the electric power electric transformer with control unit.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The application scenarios schematic diagram of the electric power electric transformer that Fig. 1 provides for the utility model embodiment;
The structural representation of the electric power electric transformer with control unit that Fig. 2 provides for the utility model;
Annexation schematic diagram between the sub-controller that Fig. 3 provides for the utility model and power cell;
The internal structure schematic diagram of the master controller that Fig. 4 provides for the utility model;
The internal structure schematic diagram of the sub-controller that Fig. 5 provides for the utility model.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The application scenarios schematic diagram of the electric power electric transformer that Fig. 1 provides for the utility model embodiment, please refer to Fig. 1, the input of this electric power electric transformer 101 is connected with the alternating current of grid side by pantograph 102, the output of electric power electric transformer 101 is connected with the traction electric machine 104 of locomotive by traction invertor 103, powers for the traction electric machine 104 to locomotive; Electric power electric transformer 101 comprises input inductance and N number of power cell, and comprise H bridging parallel operation and DC/DC converter in each power cell respectively, DC/DC converter comprises the DC converter, high frequency transformer and the 2nd DC converter that connect successively.Below, specific embodiment is adopted to be described in detail to the electric power electric transformer with control unit shown in the utility model.
The structural representation of the electric power electric transformer with control unit that Fig. 2 provides for the utility model, please refer to Fig. 2, should comprise: control unit 201 and electric power electric transformer 202 with the electric power electric transformer of control unit;
Control unit 201 comprises: master controller 2011 and N number of sub-controller 2012-1 ~ 2012-N;
Electric power electric transformer 202 comprises: input inductance 2022 and N number of power cell 2021-1 ~ 2021-N; Wherein, power cell comprises: interconnective H bridging parallel operation A and DC/DC converter B, wherein, DC/DC converter B comprises the DC converter, high frequency transformer and the 2nd DC converter that connect successively, the input of H bridging parallel operation is connected with the output of input inductance 2022, and the input input of inductance 2022 is connected with the input of electric power electric transformer; It will be appreciated by persons skilled in the art that the input of input inductance 2022 is the input of electric power electric transformer 202.
Master controller 2011 is connected with the input of electric power electric transformer, the output of electric power electric transformer; Master controller 2011 is connected with each sub-controller, each sub-controller connects with the control end of the H bridging parallel operation in corresponding power cell respectively, and each sub-controller connects with the output of the 2nd DC converter in the input of a DC converter, the output of a DC converter and the DC/DC converter in the control end of the DC/DC converter in corresponding power cell, DC/DC converter (for illustrating the annexation of sub-controller and corresponding power cell in Fig. 2) respectively;
Master controller 2011 for, gather the first voltage signal and first current signal of the input of electric power electric transformer, and gather the second voltage signal and second current signal of the output of electric power electric transformer, the balance of voltage modulation signal of the H bridging parallel operation of each power cell is generated according to the first voltage signal, the first current signal, the second voltage signal and the second current signal, and balance of voltage modulation signal correspondence is sent to sub-controller, generate H bridge drive singal to make sub-controller according to balance of voltage modulation signal;
Sub-controller is used for, and generates H bridge drive singal, and H bridge drive singal is sent to the control end of H bridging parallel operation according to the balance of voltage modulation signal that master controller 2011 sends; Gather the tertiary voltage signal of input of a DC converter and the 3rd current signal of the output of a DC converter in DC/DC converter, and gather the 4th current signal of the output of the 2nd DC converter in DC/DC converter, generate DC/DC converter drive singal according to tertiary voltage signal, the 3rd current signal and the 4th current signal, and described DC/DC converter drive singal is sent to the control end of DC/DC converter.
Annexation in fig. 2 between not shown sub-controller and power cell, below, by Fig. 3, an annexation between sub-controller and corresponding power cell in control unit is shown.
Annexation schematic diagram between the sub-controller that Fig. 3 provides for the utility model and power cell, please according to Fig. 3, H bridging parallel operation 302 and DC/DC converter 303 form a power cell, and wherein DC/DC converter comprises: the DC converter connected successively, high frequency transformer and the 2nd DC converter.
Sub-controller 301 is connected with the control end of H bridging parallel operation 302, for sending H bridge drive singal to the control end of H bridging parallel operation 302, realizes controlling to H bridging parallel operation by H bridge drive singal.
Sub-controller 301 is also connected with the input of the DC converter in DC/DC converter 303, for gathering the tertiary voltage signal of a DC converter input, also be connected with the output of a DC converter, for gathering the 3rd current signal of a DC converter output terminal, also be connected with the output of the 2nd DC converter, for gathering the 4th current signal of the input of the 2nd DC converter; Sub-controller 301 is also connected with the control end of DC/DC converter 303 (not shown in Fig. 3), for sending DC/DC converter drive singal to the control end of DC/DC converter 303, realize controlling to DC/DC converter by DC/DC converter drive singal; It should be noted that, the control end of DC/DC converter is separately positioned on a DC converter and the 2nd DC converter.
Below, the course of work of the master controller in middle control unit embodiment illustrated in fig. 2 and sub-controller is described in detail.
Master controller in control unit:
Control unit comprises a master controller; this master controller is used for controlling the general function of electric power electric transformer; such as, perform the startup control of electric power electric transformer, protecting control, Redundant Control and failure safe guiding to control, vehicle bus is carried out to network communication and unified control etc.
In specific implementation process, master controller needs electric signal (voltage signal of the input of electric power electric transformer and current signal according to the electric power electric transformer collected, and the voltage signal of electric power electric transformer output and current signal) perform the balance of voltage algorithm of the H bridging parallel operation in each power cell, and by sub-controller, H bridging parallel operation is controlled, concrete: master controller is connected with the input of electric power electric transformer with current sensor by voltage sensor, the first voltage signal of the input of electric power electric transformer is gathered by voltage sensor, the first current signal of the input of electric power electric transformer is gathered by current sensor, wherein the first voltage signal is ac voltage signal, first current signal is ac current signal, master controller is also connected with the output of electric power electric transformer with current sensor by voltage sensor, the second voltage signal of electric power electric transformer output is gathered by voltage sensor, the second current signal of electric power electric transformer output is gathered by current sensor, this second voltage signal is d. c. voltage signal, this second current signal is DC current signal, master controller is according to the first voltage signal collected, first current signal, second voltage signal and the second current signal perform the voltage balancing control algorithm of H bridge in each power cell, generate the balance of voltage modulation signal of H bridging parallel operation in each power cell, and the balance of voltage modulation signal correspondence of H bridging parallel operation is sent to sub-controller, H bridging parallel operation is controlled according to the balance of voltage modulation signal of H bridging parallel operation to make sub-controller.
It should be noted that, master controller can also gather other electric signal of electric power electric transformer, as the ground signalling etc. of electric power electric transformer, in actual application, can obtain the electric signal of electric power electric transformer according to actual acquisition.
Sub-controller in control unit:
Control unit comprises multiple sub-controller; power cell in each sub-controller and electric power electric transformer has one-to-one relationship; each sub-controller controls the power cell corresponding with it respectively, such as, to power cell internal logic control, protecting control etc.
In specific implementation process, sub-controller realizes controlling the H bridging parallel operation in power cell in the following way: sub-controller connects with the control end of the H bridging parallel operation in corresponding power cell respectively, receive the balance of voltage modulation signal of the H bridging parallel operation that master controller sends at sub-controller after, H bridge drive singal is generated according to balance of voltage modulation signal, and send H bridge drive singal to the control end of the H bridging parallel operation in power cell, by H bridge drive singal, H bridging parallel operation is controlled; Optionally, H bridge drive singal can be H bridge pulse width modulation (Pulse-WidthModulation is called for short PWM) driving pulse.
Sub-controller realizes controlling the DC/DC converter in power cell in the following way: sub-controller is connected by the input of voltage sensor with the DC converter in DC/DC converter, is gathered the tertiary voltage signal of the input of a DC converter by voltage sensor; Sub-controller is connected by the output of current sensor with the DC converter in DC/DC converter, is gathered the 3rd current signal of the output of a DC converter by current sensor; Sub-controller is also connected by the output of current sensor with the 2nd DC converter in DC/DC converter, is gathered the 4th current signal of the output of the 2nd DC converter by current sensor; Sub-controller, after obtaining tertiary voltage signal, the 3rd current signal and the 4th current signal, performs DC/DC convertor controls algorithm according to tertiary voltage signal, the 3rd current signal and the 4th current signal, generates DC/DC converter drive singal; Sub-controller is also connected with the control end of DC/DC converter, after generating DC/DC converter drive singal at iversion controller, DC/DC converter drive singal is sent to the control end of DC/DC converter, by DC/DC converter drive singal, DC/DC converter is controlled; Optionally, DC/DC converter drive singal can be PWM driving pulse.
In the embodiment shown in Figure 2, master controller and multiple sub-controller are comprised to the control unit of electric power electric transformer, the control to electric power electric transformer is jointly realized by master controller and multiple sub-controller, master controller and each sub-controller control the disparate modules in electric power electric transformer respectively, make controlling functions integrated in main controller and each sub-controller less, and then the structure of master controller and each sub-controller is simple, be easy to the maintenance to the electric power electric transformer with control unit, and improve the stability of the electric power electric transformer with control unit, further, owing to being dispersed in master controller and each sub-controller to the controlling functions of electric power electric transformer, decrease the quantity of the communication interface in master controller and sub-controller, reduce electric power electric transformer and the cabling difficulty between master controller and each sub-controller, simultaneously, in use, when electric power electric transformer breaks down, fault point is easy to.
Below, by specific embodiment, master controller and point internal structure controlled are described in detail, concrete, please refer to the embodiment shown in Fig. 4 and Fig. 5.
The internal structure schematic diagram of the master controller that Fig. 4 provides for the utility model, please refer to Fig. 4, this master controller can comprise: main signal acquisition module 401, host CPU 402, N number of main communication interface 403;
Main signal acquisition module 401 is connected with the input of electric power electric transformer, the output of electric power electric transformer and host CPU 402, for gathering the first voltage signal, the first current signal, the second voltage signal and the second current signal, and the first voltage signal, the first current signal, the second voltage signal and the second current signal are sent to host CPU 402;
Host CPU 402 is connected with sub-controller by main communication interface 403, for generating the balance of voltage modulation signal of the H bridging parallel operation of each power cell according to the first voltage signal, the first current signal, the second voltage signal and the second current signal, and balance of voltage modulation signal correspondence is sent to sub-controller.
In the embodiment shown in fig. 4, optionally, in order to improve fail safe and the agility of data interaction between master controller and sub-controller, main communication interface 403 can be fiber optic data communication interface, in actual application, 2 optical fiber gone out can be entered by 2 between master controller and each sub-controller and carry out data communication, can also electrical isolation be realized simultaneously.
In actual application, can be powered by independent current source to master controller, concrete, master controller can also comprise main power source module, and this power module is connected to power with host CPU, main signal acquisition module, main communication interface; External input voltage can be converted to main signal acquisition module 401, host CPU 402 and main communication interface 403 required voltage by this main power source module, such as, be the voltage such as+15V ,-15V, 5V by the direct current 110V voltage transitions of input, and power to the modules in master controller.Certainly, can be powered to master controller by external power source, the utility model does not do concrete restriction to this.
Further, in the embodiment shown in fig. 4, master controller can also comprise digital quantity input module, digital output module, digital quantity input module for obtain main circuit breaker feedback, charging contactor feedback, main contactor feedback and and each sub-controller between isolation contactor feedback etc.; Digital output module be used for main circuit breaker of railway engine, charging contactor, main contactor and and each sub-controller between isolation contactor etc. control; Further, in order to realize the control of master controller to locomotive, the communication module of carrying out with locomotive communicating in master controller, can also be comprised.
The internal structure schematic diagram of the sub-controller that Fig. 5 provides for the utility model, please refer to Fig. 5, this sub-controller can comprise: sub-signal acquisition module 501, point CPU502, at least three points of communication interfaces 503;
Output and point CPU of the 2nd DC converter in the input of sub-signal acquisition module 501 and the DC converter in DC/DC converter, the output of a DC converter, DC/DC converter are connected, for gathering tertiary voltage signal, the 3rd current signal and the 4th current signal, and tertiary voltage signal, the 3rd current signal and the 4th current signal are sent to a point CPU502;
Divide CPU502 to be used for, generate DC/DC converter drive singal according to tertiary voltage signal, the 3rd current signal and the 4th current signal;
Dividing CPU502 to be connected with master controller by point communication interface 503, for obtaining the balance of voltage modulation signal that master controller sends, and generating H bridge drive singal according to balance of voltage modulation signal;
CPU502 is divided to be connected with the control end of DC/DC converter and the control end of H bridging parallel operation by a point communication interface 503, for by the control end transmission DC/DC converter drive singal of point communication interface to DC/DC converter, by the control end transmission H bridge drive singal of point communication interface to H bridging parallel operation.
In the embodiment shown in fig. 5, carry out the communication interface communicated with master controller in sub-controller, with to carry out the effect of the communication interface communicated different from H bridging parallel operation, DC/DC converter, in actual application, the communication interface of identical type can be adopted, also can adopt dissimilar communication interface; Preferably, carrying out the communication interface 503 that communicates in sub-controller with main controller can be fiber optic data communication interface, sub-controller and master controller and can enter 2 optical fiber gone out by 2 and carry out data communication.
In actual application, can be powered by independent current source to sub-controller, concrete, sub-controller can also comprise independent power source module, and independent power source module is connected to power with a point CPU, sub-signal acquisition module, a point communication interface; External input voltage can be converted to sub-signal acquisition module 501, point CPU502, point communication interface 503 required voltage by this independent power source module, such as, be the voltage such as+15V ,-15V, 5V by the direct current 110V voltage transitions of input, and power to the modules in sub-controller.Certainly, can be powered to sub-controller by external power source, the utility model does not do concrete restriction to this.
Further, in the embodiment shown in fig. 4, sub-controller can also comprise digital quantity input module, digital output module, and digital quantity input module is for obtaining power cell isolation contactor feedback, and digital output module is for controlling power cell isolation contactor.
In the above-described embodiments, for the ease of installation and the design of master controller and each sub-controller, master controller can be casing structure, and independent warehouse is reserved in electric power electric transformer, each sub-controller is single plate structure, further, in order to ensure the insulation property of each sub-controller, each sub-controller can be arranged at respectively on the low-voltage module in the DC/DC converter in corresponding power cell, because the DC converter in DC/DC converter is high-pressure modular, 2nd DC converter is low-voltage module, in actual application, sub-controller can be arranged on the 2nd DC converter in DC/DC converter.
The utility model embodiment also provides a kind of rail vehicle electric power system, comprising: the electric power electric transformer with control unit described in above-mentioned any embodiment and the traction invertor be connected with the output of electric power electric transformer.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (7)
1. with an electric power electric transformer for control unit, it is characterized in that, comprising: control unit and electric power electric transformer;
Described control unit comprises: master controller and N number of sub-controller;
Described electric power electric transformer comprises: input inductance and N number of power cell;
Described power cell comprises: interconnective H bridging parallel operation and DC-to-DC DC/DC converter, wherein, described DC/DC converter comprises: the DC converter connected successively, high frequency transformer and the 2nd DC converter, the input of described H bridging parallel operation is connected with the output of described input inductance, and the described input of input inductance is connected with the input of electric power electric transformer;
Described master controller is connected with the input of electric power electric transformer, the output of electric power electric transformer;
Described master controller is connected with each sub-controller, each sub-controller connects with the control end of the H bridging parallel operation in corresponding power cell respectively, and each sub-controller connects with the output of the 2nd DC converter in the input of the DC converter in the control end of the DC/DC converter in corresponding power cell, described DC/DC converter, the output of a described DC converter and described DC/DC converter respectively;
Described master controller is used for, gather the first voltage signal and first current signal of the input of described electric power electric transformer, and gather the second voltage signal and second current signal of the output of described electric power electric transformer, according to described first voltage signal, first current signal, second voltage signal and described second current signal generate the balance of voltage modulation signal of the H bridging parallel operation of each power cell, and described balance of voltage modulation signal is sent to corresponding sub-controller, H bridge drive singal is generated according to described balance of voltage modulation signal to make described sub-controller,
Described sub-controller is used for, and generates H bridge drive singal, and described H bridge drive singal is sent to the control end of H bridging parallel operation according to the balance of voltage modulation signal that described master controller sends; Gather the 3rd current signal of the tertiary voltage signal of the input of a DC converter described in described DC/DC converter and the output of a described DC converter, and gather the 4th current signal of the output of the 2nd DC converter in described DC/DC converter, generate DC/DC converter drive singal according to tertiary voltage signal, the 3rd current signal and the 4th current signal, and described DC/DC converter drive singal is sent to the control end of DC/DC converter.
2. transformer according to claim 1, is characterized in that, described master controller comprises:
Main signal acquisition module, host CPU, N number of main communication interface;
Described main signal acquisition module is connected with the input of described electric power electric transformer, the output of electric power electric transformer and described host CPU, for gathering described first voltage signal, described first current signal, described second voltage signal and described second current signal, and described first voltage signal, described first current signal, described second voltage signal and described second current signal are sent to described host CPU;
Described host CPU is connected with described sub-controller by described main communication interface, for generating the balance of voltage modulation signal of the H bridging parallel operation of each power cell according to described first voltage signal, the first current signal, the second voltage signal and described second current signal, and described balance of voltage modulation signal correspondence is sent to described sub-controller.
3. transformer according to claim 2, is characterized in that, described master controller, also comprises:
Main power source module, described power module is connected to power with described host CPU, main signal acquisition module, main communication interface.
4. the transformer according to any one of claims 1 to 3, is characterized in that, described sub-controller, comprising:
Sub-signal acquisition module, point CPU, at least three points of communication interfaces;
Output and the described point of CPU of the 2nd DC converter in the output of described sub-signal acquisition module and the input of the DC converter in DC/DC converter, a described DC converter, DC/DC converter are connected, for gathering described tertiary voltage signal, described 3rd current signal and described 4th current signal, and described tertiary voltage signal, described 3rd current signal and described 4th current signal are sent to described point CPU;
Described point of CPU is used for, and according to described tertiary voltage signal, described 3rd current signal and the, the 4th current signal generates DC/DC converter drive singal;
Described point of CPU is connected with described master controller by described point of communication interface, for obtaining the balance of voltage modulation signal that master controller sends, and generates H bridge drive singal according to described balance of voltage modulation signal;
Described point of CPU is also connected with the control end of described DC/DC converter and the control end of H bridging parallel operation by described point of communication interface, for by the control end transmission DC/DC converter drive singal of described point of communication interface to described DC/DC converter, by the control end transmission H bridge drive singal of described point of communication interface to described H bridging parallel operation.
5. transformer according to claim 4, is characterized in that, described sub-controller, also comprises:
Independent power source module, described independent power source module is connected to power with described point of CPU, sub-signal acquisition module, a point communication interface.
6. the transformer according to any one of claims 1 to 3, is characterized in that, each sub-controller is arranged on the low-voltage module in the DC/DC converter in corresponding power cell respectively.
7. a rail vehicle electric power system, is characterized in that, comprising: the electric power electric transformer with control unit according to any one of claim 1 ~ 6 and with as described in the traction invertor that is connected of the output of electric power electric transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520949926.5U CN205212714U (en) | 2015-11-24 | 2015-11-24 | Power electronic transformer and rail vehicle electric power system with control unit |
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| CN201520949926.5U CN205212714U (en) | 2015-11-24 | 2015-11-24 | Power electronic transformer and rail vehicle electric power system with control unit |
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| CN205212714U true CN205212714U (en) | 2016-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787787A (en) * | 2015-11-24 | 2017-05-31 | 中车大连电力牵引研发中心有限公司 | Electric power electric transformer and rail vehicle power system with control unit |
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2015
- 2015-11-24 CN CN201520949926.5U patent/CN205212714U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787787A (en) * | 2015-11-24 | 2017-05-31 | 中车大连电力牵引研发中心有限公司 | Electric power electric transformer and rail vehicle power system with control unit |
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