CN111055717A - High-power flexible distribution group charging system based on electric automobile - Google Patents
High-power flexible distribution group charging system based on electric automobile Download PDFInfo
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- CN111055717A CN111055717A CN201911400393.4A CN201911400393A CN111055717A CN 111055717 A CN111055717 A CN 111055717A CN 201911400393 A CN201911400393 A CN 201911400393A CN 111055717 A CN111055717 A CN 111055717A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a high-power flexible distribution group charging system based on an electric automobile, which belongs to the technical field of electric automobile charging control and comprises a main control module, a control circuit module, a working state control module and a feedback module; the device also comprises a rectification module, a phase-shift circuit module and a discharge module which are connected in sequence, wherein the discharge module comprises a plurality of discharge units, and the working state control module comprises a plurality of working state control units; the main control module is connected with the control circuit module, the output end of the control circuit is connected with the rectifying module, the phase-shift circuit module and one end of the working state control module, and the other end of the working state control module is connected between the phase-shift circuit module and the charging module circuit. The invention can meet the requirement of simultaneously charging a plurality of electric automobiles, the output power of the system can be adjusted in real time according to the charging requirement, and the working state control unit can control the working state of each discharging unit, thereby realizing round charging and uniform charging and improving the charging efficiency.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging control, in particular to a high-power flexible distribution group charging system based on an electric vehicle.
Background
With the increasing shortage of energy, the desire for new automobiles marked by energy conservation and environmental protection is rising, the enthusiasm of various countries in the world for the new energy automobiles, namely electric automobiles, is rising, the pace of developing the new energy automobiles is quickened by various countries, and various enterprises are developing the automobile type and supporting facilities thereof at full horsepower.
In order to promote the global popularization of electric vehicles, besides technical breakthrough and standard unification, the construction of related infrastructures also needs to be synchronously developed. In recent years, with the rapid development of new energy automobiles in China, the new energy automobiles are developed rapidly, but corresponding charging facilities become the largest short board for restricting the rapid propulsion of the new energy automobiles, and the relative hysteresis of basic supporting facilities such as charging piles and the like is increasingly prominent. At present, a charging system of an electric automobile is charged one by one, the charging requirement of one electric automobile can only be met once, a plurality of electric automobiles cannot be charged simultaneously, and the charging efficiency is low. How to satisfy the charging demand of many electric automobile simultaneously to the output that fills electric pile is the problem that needs to solve at present according to the charging demand of different electric automobile, the state of charge adjustment.
Disclosure of Invention
The invention aims to solve the problem that the output power of a charging pile cannot be adjusted according to the charging requirements and the charging states of different electric vehicles in the prior art, and provides a high-power flexible distribution group charging system based on electric vehicles.
The purpose of the invention is realized by the following technical scheme: a high-power flexible distribution group charging system based on an electric automobile specifically comprises a main control module, a control circuit module, a working state control module and a feedback module; the system also comprises a rectification module, a phase-shift circuit module and a discharge module which are sequentially connected, wherein the discharge module comprises a plurality of discharge units, and the working state control module comprises a plurality of working state control units; the main control module is bidirectionally connected with the control circuit module, the output end of the control circuit is connected with one end of the rectifying module, the phase-shift circuit module and the working state control module, and the other end of the working state control module is connected between the phase-shift circuit module and the charging module circuit; the output end of the phase shift circuit module is connected with the feedback module, and the output end of the feedback module is connected with the main control module. The invention can meet the requirement of simultaneously charging a plurality of electric automobiles, the output power of each discharging unit can be adjusted in real time according to the charging requirement, the control circuit module controls the working state control unit to further change the working state of each discharging unit, so that the alternate charging and the uniform charging are realized, the charging efficiency is improved, and the charging is more reasonable and intelligent.
Specifically, the main control module is specifically a DSP control module, and the control circuit module is specifically an FPGA control circuit module.
Specifically, the output end of the control circuit module is connected with the phase-shift circuit module through the isolation circuit module, and the output end of the control circuit module is connected with the rectification module through the driving circuit module.
Specifically, the phase shift circuit module comprises a plurality of phase shift circuit units, and the control circuit module controls different phase shift circuit units to adjust the output power of different discharge units; the phase-shifting circuit unit comprises a plurality of phase-shifting circuits, and the phase-shifting circuits comprise a plurality of inverter circuits and a plurality of filter circuits which are connected in series and are sequentially connected, so that the working voltage of the system can be increased, and the output voltage range can be enlarged; the inverter circuit comprises a first inverter circuit and at least two second inverter circuits, the first inverter circuit comprises a complete H-bridge formed by four field effect transistors, the second inverter circuit comprises a half-bridge formed by two field effect transistors, and the control circuit module controls the on-off of the transistors to further adjust the PWM duty ratio so as to adjust the output power of the system.
Specifically, the rectification module comprises a plurality of PWM rectification units, and the output ends of the PWM rectification units are connected with the inverter circuit.
Specifically, the feedback module comprises a plurality of feedback units, and each feedback unit comprises a plurality of AD sampling modules, and is used for acquiring output voltage and current parameters of the phase shift circuit module and transmitting the output voltage and current parameters to the main control module.
Specifically, the discharge unit comprises a plurality of charging guns with different maximum output powers for charging the electric automobile.
Specifically, the system further comprises an amplifying circuit module, wherein the amplifying circuit module comprises a plurality of amplifying circuit units, and each amplifying circuit unit comprises an operational amplifying circuit, an isolation amplifying circuit, an integrated amplifying circuit and a push-pull circuit which are sequentially connected, so that the output voltage value can be further adjusted, and the high-power output of the charging gun is realized; the push-pull circuit in the amplifying circuit block can achieve high linearity of the output voltage.
Specifically, the system further comprises a data input module, wherein the output end of the data input module is connected with the main control module and used for adjusting the voltage and the current values output by the phase shift circuit module according to the charging demand information input by the user.
Specifically, the system further comprises a power supply module, wherein the output end of the power supply module is connected with the main control module, the control circuit module and the feedback module, and working voltage is provided for each module.
Compared with the prior art, the invention has the beneficial effects that:
(1) the system discharge module comprises a plurality of discharge units so as to meet the requirement of simultaneously charging a plurality of electric vehicles; furthermore, a control circuit module of the system controls the phase-shifting circuit module to adjust the voltage and the current, a feedback module collects the current voltage and current parameters and feeds the current parameters back to the main control module, and the output power of the system is further adjusted, so that the discharge units output the same or different power, and the uniform charging function is realized; the control circuit module controls the working state control unit to further change the working state of each discharge unit, and the wheel charging function is achieved.
(2) The phase-shifting circuit module comprises a plurality of phase-shifting circuit units, and the control circuit module controls different phase-shifting circuit units so as to adjust the output power of different discharging units; the phase-shift circuit unit comprises a phase-shift circuit, the phase-shift circuit comprises a plurality of inverter circuits connected in series, the working voltage of the system can be improved, and the output voltage range is expanded; the inverter circuit comprises a first inverter circuit and at least two second inverter circuits, the first inverter circuit comprises a complete H bridge formed by four field effect transistors, the second inverter circuit comprises a half bridge formed by two field effect transistors, the on-off of the transistors is controlled through the control circuit module so as to adjust the PWM duty ratio, the output power of the system is adjusted, and the discharging unit outputs different powers to charge the electric automobile according to the charging requirements of different users.
(3) The amplifying circuit module of the system can further adjust the output voltage value to realize the high-power output of the charging gun; the push-pull circuit in the amplifying circuit block can achieve high linearity of the output voltage.
(4) The data input module can acquire the charging requirement of a user, and the main control module transmits the charging requirement to the control circuit module so as to adjust the output voltage and the current value of the phase-shifting circuit module.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the figure:
fig. 1 is a system block diagram of embodiment 1 of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that directions or positional relationships indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are directions or positional relationships described based on the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1, in embodiment 1, a high-power flexible distribution group charging system based on an electric vehicle specifically includes a main control module, a control circuit module, a feedback module, a working state control module, and a data input module; the system also comprises a rectification module, a phase-shift circuit module, an amplification circuit module and a discharge module which are connected in sequence, wherein the discharge module comprises 4 discharge units. The output end of the data input module is bidirectionally connected with the main control module and is used for acquiring the charging demand information of the user; the main control module is connected with the control circuit module and used for calculating and transmitting the charging demand information of the user to the control circuit module; the output end of the control circuit module and the rectification module control the rectification module to output high-frequency direct current; the output end of the control circuit is connected with the phase-shifting circuit module and is used for adjusting the current and voltage values of the phase-shifting output module; the output end of the phase-shifting circuit module is connected with the feedback module, and the output end of the feedback module is connected with the main control module and is used for feeding back current and voltage parameters currently output by the system to the main control module so as to further adjust the output power of the system; the output end of the control circuit is connected with one end of a working state control module, and the other end of the working state control module is connected between the phase-shifting circuit module and the charging module circuit so as to control the working states of different discharging units; the output end of the phase shift circuit module is connected with the amplifying circuit module, and the voltage and the current values of output signals are further adjusted, so that high-power output of the charging module is realized.
Furthermore, the main control module is specifically a DSP control module, the control circuit module is specifically an FPGA control circuit module, and the DSP control module is connected with the FPGA control circuit module through a 16-bit address bus and a 12-bit address bus, and is used for realizing bidirectional transmission of the charging demand information, the current output voltage, and the current parameters.
Furthermore, the data input module in this embodiment is specifically a touch screen, and is convenient for inputting charging demand information such as charging time information and electricity purchasing quantity, and transmitting the information to the DSP main control module, and the DSP main control module further calculates the output power of the system according to the charging demand information of the user, so that the FPGA control circuit module outputs a PWM control signal to adjust the on/off of the field effect transistor in the phase shift circuit module.
Further, the rectifying module comprises 4 PWM rectifying units, each rectifying unit comprises 5 PWM rectifying circuits, the PWM rectifying circuits perform AC-DC rectification on the input 220V alternating current voltage, and the 380-500V direct current voltage is output as the power input of the phase-shift circuit module. More specifically, the FPGA control circuit module is connected to the rectifier module through the driving circuit module, and is configured to amplify the PWM signal output by the FPGA, so that the rectifier module outputs the high-frequency direct current.
Further, the phase shift circuit module includes 4 phase shift circuit units in this embodiment, and the phase shift circuit unit includes 5 phase shift circuit, and phase shift circuit includes 5 series connection's that connect gradually inverter circuit and 2 filter circuit, and inverter circuit includes a first inverter circuit and 4 second inverter circuits, and first inverter circuit includes a complete H bridge that comprises four field effect transistors, and second inverter circuit includes a half-bridge that comprises two field effect transistors. More specifically, the rectifying circuit is connected to the phase shift circuit unit, and the rectifying circuit is connected in parallel to the first inverter circuit via a capacitor. The first inverter circuit comprises a field effect transistor Q1, a field effect transistor Q2, a field effect transistor Q3 and a field effect transistor Q4, the gates of 4 field effect transistors are connected with the output end of the control circuit module, the drains of the field effect transistor Q1 and the field effect transistor Q3 are connected with the positive electrode of the output power supply of the rectifying unit, the source of the field effect transistor Q1 is connected with the drain of the field effect transistor Q2, the source of the field effect transistor Q3 is connected with the drain of the field effect transistor Q4, and the sources of the field effect transistor Q2 and the field effect transistor Q4 are connected with the negative electrode of the output. The second inverter circuit comprises a second inverter circuit IC1, a second inverter circuit IC2, a second inverter circuit IC3 and a second inverter circuit IC4 which are sequentially connected in series, the second inverter circuit IC1 and the rectifying circuit are connected in parallel through a capacitor, the second inverter circuit forms a half bridge arm by two field effect transistors connected in series, the grids of the two field effect transistors are connected with the control circuit module, the source electrode of the field effect transistor in the upper half bridge arm is connected with the drain electrode of the field effect transistor in the lower half bridge arm, the drain electrode of the field effect transistor in the upper half bridge arm is connected with the positive electrode of the output power supply of the rectifying circuit, the source electrode of the field effect transistor in the lower half bridge arm is connected with the negative electrode of the output power supply of the rectifying circuit, and the second inverter circuit IC2, the second inverter circuit IC3 and the second inverter circuit IC4 are the same as the second inverter circuit IC 1. Furthermore, a common connection point between the field effect transistor Q1 and the field effect transistor Q2 in the first inverter circuit is connected to the source electrode of the lower half bridge arm of the second inverter circuit IC4 through a first inductor and a first capacitor; and a common connection point between the field effect transistor Q3 and the field effect transistor Q4 in the first inverter circuit is connected to the source electrode of the lower half bridge arm of the second inverter circuit IC4 through a second inductor and a second capacitor. PWM signals output by the control circuit module are transmitted to the phase-shifting circuit module through the isolation circuit module, the conduction and the cut-off of the field effect transistors in each inverter circuit are controlled, and then the duty ratio of the PWM signals is adjusted, so that the output voltage and the current of the phase-shifting circuit unit are adjusted.
Furthermore, the working state control module comprises 4 working state control units, one end of each working state control unit is connected with the output end of the control circuit module, and the other end of each working state control unit is connected between the amplifying circuit unit and the discharging unit. More specifically, the operating state control unit is specifically a contactor, a coil of the contactor is connected with an I/O end of the control circuit module, and a contact of the contactor is connected between the amplifying circuit unit and the discharging unit. And when the control circuit module judges that the output power of a certain discharge unit reaches the preset power, the corresponding contactor is controlled to be disconnected, and the work is stopped. More specifically, if the user selects the wheel charging mode, the control circuit module controls the operating state control unit 1 to be turned on, other operating state control units are turned off, and only the discharging unit 1 is allowed to operate, when the control circuit module detects that the output power of the discharging unit 1 reaches the preset power, the operating state control unit 2 is controlled to be turned on, other operating state control units are turned off, and only the discharging unit 2 is allowed to operate, so that the wheel charging function is realized.
Furthermore, the amplifying circuit module comprises 4 amplifying units, and the amplifying circuit unit comprises an operational amplifying circuit, an isolation amplifying circuit, an integrated amplifying circuit and a push-pull circuit which are connected in sequence. More specifically, the power supply module supplies power to the operational amplifier circuit, the isolation amplifier circuit and the integrated amplifier circuit, and the operational amplifier circuit is connected with the output end of the phase shift circuit unit. The push-pull circuit takes the output voltage of the phase-shift circuit unit as voltage input, the input end of the push-pull circuit is connected with the integrated amplification circuit, and the output end of the push-pull circuit is connected with the discharge module, so that the cross-over distortion can be eliminated, and the high-power output of 30-40 kw is finally realized.
Further, the feedback module comprises 4 feedback units, the feedback units comprise 4 AD sampling modules, the AD sampling modules are used for collecting voltage and current values output by the amplifying circuit units and feeding the voltage and current values back to the control circuit module, and the control circuit module judges whether the current output power reaches preset power or not so as to further adjust the output PWM wave signals.
Further, the module that discharges includes 4 each discharge units, and the discharge unit includes 4 different rifle that charges of maximum output power to charge for 4 electric automobile simultaneously, and can adjust the output of different rifle that charges in real time according to user's demand of charging, improved charge efficiency.
Furthermore, the power module rectifies and stabilizes the input commercial power, and outputs different direct-current voltages to supply power for the feedback module, the main control module, the control circuit module, the amplifying circuit module, the isolation circuit module and the data input module.
Example 2
The system of the present embodiment is the same as the system of the present embodiment, and it should be further described that the system of the present embodiment includes a rectifying unit, a phase-shifting circuit unit, an amplifying circuit unit, a voltage dividing module, 4 paths of operating state control units, and 4 discharging units, where the voltage dividing module includes 4 paths of voltage dividing units, and each voltage dividing unit is composed of a plurality of adjustable resistors to divide voltage and further adjust output power to meet charging requirements of different users.
The system discharge module comprises 4 discharge units so as to meet the simultaneous charging requirement of 4 electric vehicles; furthermore, a control circuit module of the system controls the phase-shifting circuit module to adjust the voltage and the current, a feedback module collects the current voltage and current parameters and feeds the current parameters back to the main control module, and the output power of the system is further adjusted, so that the discharge units output the same or different power, and the uniform charging function is realized; the control circuit module controls the working state control unit to further change the working state of each discharge unit, and the wheel charging function is achieved.
The above detailed description is for the purpose of describing the invention in detail, and it should not be construed that the detailed description is limited to the description, and it will be apparent to those skilled in the art that various modifications and substitutions can be made without departing from the spirit of the invention.
Claims (10)
1. The utility model provides a fill system based on high-power flexible distribution crowd of electric automobile which characterized in that: the system comprises a main control module, a control circuit module, a working state control module and a feedback module; the system also comprises a rectification module, a phase-shift circuit module and a discharge module which are sequentially connected, wherein the discharge module comprises a plurality of discharge units, and the working state control module comprises a plurality of working state control units;
the main control module is bidirectionally connected with the control circuit module, the output end of the control circuit is connected with one end of the rectifying module, the phase-shift circuit module and the working state control module, and the other end of the working state control module is connected between the phase-shift circuit module and the charging module circuit; the output end of the phase shift circuit module is connected with the feedback module, and the output end of the feedback module is connected with the main control module.
2. The high-power flexible distribution group charging system based on the electric automobile according to claim 1, characterized in that: the main control module is a DSP control module, and the control circuit module is an FPGA control circuit module.
3. The high-power flexible distribution group charging system based on the electric automobile according to claim 1, characterized in that: the output end of the control circuit module is connected with the phase-shifting circuit module through the isolation circuit module, and the output end of the control circuit module is connected with the rectifying module through the driving circuit module.
4. The high-power flexible distribution group charging system based on the electric automobile according to claim 1, characterized in that: the phase shift circuit module comprises a plurality of phase shift circuit units, the phase shift circuit units comprise a plurality of phase shift circuits, the phase shift circuits comprise a plurality of series-connected inverter circuits and a plurality of filter circuits, the inverter circuits comprise a first inverter circuit and at least two second inverter circuits, the first inverter circuit comprises a complete H bridge formed by four field effect transistors, and the second inverter circuit comprises a half bridge formed by two field effect transistors.
5. The high-power flexible distribution group charging system based on the electric automobile according to claim 4, characterized in that: the rectification module comprises a plurality of PWM rectification units, and the output ends of the PWM rectification units are connected with the inverter circuit.
6. The high-power flexible distribution group charging system based on the electric automobile according to claim 1, characterized in that: the feedback module comprises a plurality of feedback units, and each feedback unit comprises a plurality of AD sampling modules and is used for collecting output voltage and current parameters of the phase-shift circuit module and transmitting the output voltage and current parameters to the main control module.
7. The high-power flexible distribution group charging system based on the electric automobile according to claim 1, characterized in that: the discharging unit comprises a plurality of charging guns with different maximum output powers and is used for charging the electric automobile.
8. The high-power flexible distribution group charging system based on the electric automobile according to claim 1, characterized in that: the system also comprises an amplifying circuit module, wherein the output end of the phase-shifting circuit module is connected with the amplifying circuit module, and the output end of the amplifying circuit module is connected with the discharging module;
the amplifying module comprises a plurality of amplifying circuit units, and the amplifying circuit units comprise an operational amplifying circuit, an isolation amplifying circuit, an integrated amplifying circuit and a push-pull circuit which are sequentially connected.
9. The high-power flexible distribution group charging system based on the electric automobile according to claim 1, characterized in that: the system also comprises a data input module, wherein the output end of the data input module is connected with the main control module and used for adjusting the voltage and the current values output by the phase-shift circuit module according to the charging demand information input by a user.
10. The high-power flexible distribution group charging system based on the electric automobile according to claim 1, characterized in that: the system also comprises a power supply module, wherein the output end of the power supply module is connected with the main control module, the control circuit module and the feedback module.
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| CN201911400393.4A CN111055717B (en) | 2019-12-30 | 2019-12-30 | High-power flexible distribution group charging system based on electric automobile |
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| CN201911400393.4A CN111055717B (en) | 2019-12-30 | 2019-12-30 | High-power flexible distribution group charging system based on electric automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112356726A (en) * | 2020-11-04 | 2021-02-12 | 西安蓝豆新能源科技有限公司 | Alternating current time-sharing alternate charging device and method |
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| CN111055717B (en) | 2021-11-05 |
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