CN201708573U - Modularization control based electric automobile charger - Google Patents
Modularization control based electric automobile charger Download PDFInfo
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- CN201708573U CN201708573U CN2010201749081U CN201020174908U CN201708573U CN 201708573 U CN201708573 U CN 201708573U CN 2010201749081 U CN2010201749081 U CN 2010201749081U CN 201020174908 U CN201020174908 U CN 201020174908U CN 201708573 U CN201708573 U CN 201708573U
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Abstract
The utility model discloses a modularization control based electric automobile charger, which comprises at least one AC-DC link path and a control system, wherein the AC-DC link path comprises an input rectification circuit, a power factor correcting circuit, an IGBT bridge type inverter circuit, a high frequency isolation transformer and an output rectification circuit which are sequentially connected, and the IGBT bridge type inverter circuit is connected with an IGBT protection circuit and an IGBT drive circuit which are located on an independent PCB. The utility model has the advantages of strong expansibility, convenient trouble removal, convenient maintenance and the like.
Description
Technical field
The utility model relates to a kind of field of electric control, especially relates to a kind of modularization control system of electric car charger.
Background technology
The control system of electric car charger is being brought into play very crucial effect in charging process; traditional AC-DC link all comprises the IGBT bridge inverter main circuit; this circuit often needs to be provided with IGBT protective circuit and IGBT drive circuit; for many AC-DC links situation that inserts electrical network and series connection output in parallel; if IGBT protective circuit and IGBT drive circuit are located on the motherboard; then autgmentability is very limited; change the quantity of AC-DC link if desired; then need to change motherboard, and be not easy to very much troubleshooting of faults and maintenance.
Summary of the invention
The purpose of this utility model is: provide a kind of autgmentability better, and be convenient to the control system of electric automobile of fixing a breakdown and safeguarding.
The purpose of this utility model is achieved in that
A kind of electric car charger based on modularization control; this charger comprises at least one AC-DC link and control system; this AC-DC link comprises input rectification circuit, circuit of power factor correction, IGBT bridge inverter main circuit, high-frequency isolation transformer and the output rectification circuit that is linked in sequence; described IGBT bridge inverter main circuit is connected with IGBT protective circuit and IGBT drive circuit, and described IGBT protective circuit and IGBT drive circuit are located at independently on the pcb board.
Because IGBT protective circuit and IGBT drive circuit are located at independently on the pcb board; the independent pcb board that IGBT protective circuit and IGBT drive circuit are set of each IGBT bridge inverter main circuit configuration; therefore; if increase or reduce the quantity of IGBT bridge inverter main circuit; the perhaps inverter mode of switching full-bridge and half-bridge; then only need the pcb board of increase and decrease corresponding setting IGBT protective circuit and IGBT drive circuit, and do not need to change motherboard, and be convenient to investigate fault and maintenance more.
As the improvement of technique scheme, further technical scheme of the present utility model is as follows:
Above-mentioned control system comprises main control unit, IGBT drive circuit and MCU control unit, this main control unit is connected to described AC-DC link, this MCU control unit is connected to described main control unit and IGBT drive circuit, this IGBT drive circuit is connected to described AC-DC link, described main control unit is gathered the operational data of this AC-DC link, and be sent to described MCU control unit, to the IGBT drive circuit, this IGBT drive circuit is controlled the operating state of this AC-DC link to this MCU control unit according to the control command that receives according to the operational data sending controling instruction that receives.
Main control unit is used to gather the operational data of AC-DC link, analysis by the MCU control unit, and sending controling instruction, be sent to the IGBT drive circuit then, this IGBT drive circuit is according to the operating state of the control command control AC-DC link that receives, by the foregoing circuit structure, make the operating state of AC-DC link be under the monitoring of MCU control unit, the MCU control unit is according to the real-time working state of AC-DC link, send corresponding control command to the IGBT drive circuit, by the operating state of this IGBT drive circuit control AC-DC link, like this, just realized the intellectuality control of automobile charger.
Above-mentioned AC-DC link further comprises input rectification circuit, circuit of power factor correction, IGBT bridge inverter main circuit, high-frequency isolation transformer and the output rectification circuit that is linked in sequence, and described IGBT drive circuit is connected to described IGBT bridge inverter main circuit.
Become direct current behind electric main process input rectification circuit and the circuit of power factor correction, through becoming high-frequency ac behind the IGBT bridge inverter main circuit, become direct current through high-frequency isolation transformer and output rectification circuit then again.The IGBT drive circuit is connected to the IGBT bridge inverter main circuit, and controls the inversion parameter of this IGBT bridge inverter main circuit.
Above-mentioned main control unit further comprises: input protection circuit; protective circuit; pwm control circuit; the PID regulating circuit; output sampling amplifying circuit; and output protection circuit; connect output sampling amplifying circuit between described output filter circuit and the IGBT bridge inverter main circuit in turn; the PID regulating circuit; pwm control circuit and IGBT drive circuit; form the controlling of sampling loop; described MCU control unit receives the sampled data of described output sampling amplifying circuit; and send instructions to the PID regulating circuit, via the PID regulating circuit; pwm control circuit and IGBT drive circuit are controlled described IGBT bridge inverter main circuit.
The working method in controlling of sampling loop is: output sampling amplifying circuit is gathered the voltage of output voltage values and current value and storage battery, and the data of gathering are sent to MCU control unit and closed loop regulation circuit simultaneously, simultaneously, the MCU control unit is sent to closed loop regulation circuit with output voltage values and the current value of setting, closed loop regulation circuit is compared the output voltage values and the current value of reality with output voltage values and the current value set, make fine setting and output signal to pwm control circuit according to comparison result, pwm control circuit carries out pulse-width modulation according to the signal that receives, form square wave train, and be transferred to the IGBT drive circuit, by IGBT drive circuit control IGBT bridge inverter main circuit.
This mode has realized the sampling of output circuit, and makes analysis according to sampled data, and the output parameter of control AC-DC link, has realized the real-time control of AC-DC link output state.
The input of above-mentioned AC-DC link is parallel with auxiliary power circuit, and civil power is connected to described protective circuit via this auxiliary power circuit and input protection circuit; The output of described AC-DC link is connected to described protective circuit through output protection circuit; Described IGBT bridge inverter main circuit is connected to described protective circuit through the IGBT protective circuit, and the output of this protective circuit is connected to described MCU control unit.
Protective circuit one has three tunnel inputs:
The first via is imported through auxiliary power circuit and input protection circuit from electric main;
The second the road imports through output protection circuit from the output of AC-DC link;
Third Road is imported through the IGBT protective circuit from the IGBT bridge inverter main circuit.
The output of protective circuit is connected to the MCU control unit, and like this, the MCU control unit just can be monitored input circuit, and the state of output circuit and IGBT bridge inverter main circuit is realized the real-time guard to circuit.
Above-mentioned MCU control unit also is connected with and is provided with and display circuit, this setting and display circuit and the two-way communication of described MCU control unit, this setting and display circuit receive user instruction, and being sent to described MCU control unit, this MCU control unit is controlled the operating state of described AC-DC link by the user instruction that receives.
The input that circuit is connected to the MCU control unit is set, is used to receive user instruction, display circuit is connected to the output of MCU control unit, is used for output system information.
Above-mentioned MCU control unit is provided with the CAN-BUS bus interface.
The CAN-BUS bus interface be used for on-line communication and with the communicating by letter of superior system.
Description of drawings
Fig. 1 is an AC-DC link schematic diagram of the present utility model;
Fig. 2 is the AC-DC link serial connection schematic diagram of a specific embodiment of the utility model;
Fig. 3 is a control system schematic diagram of the present utility model;
Fig. 4 is an anti-reverse and anti-return system schematic of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
As shown in Figure 1, the AC-DC link of present embodiment comprises input rectification circuit, circuit of power factor correction, IGBT bridge inverter main circuit, high-frequency isolation transformer and the output rectification circuit that is linked in sequence.
As shown in Figure 2, present embodiment is formed by three AC-DC links, 1 serial connection, and the output of AC-DC link 1 also is connected with output filter circuit.
Adopt the mode of many AC-DC links series connection output, can effectively avoid the output current that the outputs in parallel of many AC-DC links may cause or the phenomenon of spread of voltage.
Article three, the 1 series connection output of AC-DC link can obtain constant current preferably and constant voltage effect.
As shown in Figure 3, the control system of present embodiment comprises main control unit 2, IGBT drive circuit and MCU control unit, main control unit 2 is connected to AC-DC link 1, the MCU control unit is connected to main control unit 2 and IGBT drive circuit, the IGBT drive circuit is connected to AC-DC link 1, the operational data that main control unit 2 is gathered this AC-DC link 1, and be sent to the MCU control unit, to the IGBT drive circuit, this IGBT drive circuit is controlled the operating state of this AC-DC link 1 to this MCU control unit according to the control command that receives according to the operational data sending controling instruction that receives.
Become direct current behind electric main process input rectification circuit and the circuit of power factor correction, through becoming high-frequency ac behind the IGBT bridge inverter main circuit, become direct current through high-frequency isolation transformer and output rectification circuit then again.The IGBT drive circuit is connected to the IGBT bridge inverter main circuit, and controls the inversion parameter of this IGBT bridge inverter main circuit.
The main control unit of present embodiment further comprises: input protection circuit; protective circuit; pwm control circuit; the PID regulating circuit; output sampling amplifying circuit; and output protection circuit; connect output sampling amplifying circuit between output filter circuit and the IGBT bridge inverter main circuit in turn; the PID regulating circuit; pwm control circuit and IGBT drive circuit; form the controlling of sampling loop; the MCU control unit receives the sampled data of output sampling amplifying circuit; and send instructions to the PID regulating circuit, via the PID regulating circuit; pwm control circuit and IGBT drive circuit are controlled described IGBT bridge inverter main circuit.
This mode has realized the sampling of output circuit, and makes analysis according to sampled data, and the output parameter of control AC-DC link, has realized the real-time control of AC-DC link output state.
The output of the IGBT bridge inverter main circuit of present embodiment is connected with the IGBT protective circuit, and the input of AC-DC link is parallel with auxiliary power circuit, and civil power is connected to described protective circuit via this auxiliary power circuit and input protection circuit; The output of AC-DC link is connected to described protective circuit through output protection circuit; The IGBT bridge inverter main circuit is connected to described protective circuit through the IGBT protective circuit, and the output of this protective circuit is connected to described MCU control unit.
Protective circuit one has three tunnel inputs:
The first via is imported through auxiliary power circuit and input protection circuit from electric main;
The second the road imports through output protection circuit from the output of AC-DC link;
Third Road is imported through the IGBT protective circuit from the IGBT bridge inverter main circuit.
The output of protective circuit is connected to the MCU control unit, and like this, the MCU control unit just can be monitored input circuit, and the state of output circuit and IGBT bridge inverter main circuit is realized the real-time guard to circuit.
The output of the AC-DC link of present embodiment connects a diode D and a controllable switch S, and the positive pole of this diode D is connected to the positive pole of output filter circuit output, and this controllable switch S is controlled by control system.
Because the electric current irreversible property of diode can effectively prevent current reflux, the while gate-controlled switch can be controlled under the correct situation of battery polar just closed, thereby prevents danger.
The output of the AC-DC link of present embodiment is connected to the MCU control unit by an output voltage detecting circuit, the output of this MCU control unit is connected to described gate-controlled switch by a switch on and off control circuit, this MCU control unit receives the detected output voltage signal of described output voltage detecting circuit, and issuing instructions to described switch on and off control circuit according to this voltage signal, this switch on and off control circuit is according to the switching of the described gate-controlled switch of commands for controlling that receives.
Output voltage detecting circuit detects the polarity of the storage battery that connects, simultaneously data are sent to the MCU control unit, under the correct situation of MCU control unit judgement accumulator polarity, just issue instructions to gate-controlled switch, with the gate-controlled switch closure, otherwise gate-controlled switch is in off-state always, can't finish charging process.
The MCU control unit of present embodiment also is connected with and is provided with and display circuit, this setting and display circuit and the two-way communication of described MCU control unit, this setting and display circuit receive user instruction, and being sent to the MCU control unit, this MCU control unit is controlled the operating state of AC-DC link by the user instruction that receives.
The input that circuit is connected to the MCU control unit is set, is used to receive user instruction, display circuit is connected to the output of MCU control unit, is used for output system information.
The MCU control unit of present embodiment is provided with the CAN-BUS bus interface.
The CAN-BUS bus interface be used for on-line communication and with the communicating by letter of superior system, constitute a topological network that constitutes by Multistage Control terminal and charging device terminal.
Of particular note: be a kind of execution mode that provides in conjunction with particular content as mentioned above, can not assert that concrete enforcement of the present utility model is confined to these explanations.All approximate, identical with the utility model structure, device etc., or, all should be considered as protection range of the present utility model for making some technology deduction or replace under the utility model design prerequisite.
Claims (6)
1. electric car charger based on modularization control; this charger comprises at least one AC-DC link and control system; this AC-DC link comprises input rectification circuit, circuit of power factor correction, IGBT bridge inverter main circuit, high-frequency isolation transformer and the output rectification circuit that is linked in sequence; described IGBT bridge inverter main circuit is connected with IGBT protective circuit and IGBT drive circuit, it is characterized in that: described IGBT protective circuit and IGBT drive circuit are located at independently on the pcb board.
2. a kind of electric car charger according to claim 1 based on modularization control, it is characterized in that: described control system comprises main control unit, IGBT drive circuit and MCU control unit, this main control unit is connected to described AC-DC link, this MCU control unit is connected to described main control unit and IGBT drive circuit, this IGBT drive circuit is connected to described AC-DC link, described main control unit is gathered the operational data of this AC-DC link, and be sent to described MCU control unit, to the IGBT drive circuit, this IGBT drive circuit is controlled the operating state of this AC-DC link to this MCU control unit according to the control command that receives according to the operational data sending controling instruction that receives.
3. a kind of electric car charger according to claim 2 based on modularization control; it is characterized in that: described main control unit further comprises: input protection circuit; protective circuit; pwm control circuit; the PID regulating circuit; output sampling amplifying circuit; and output protection circuit; connect output sampling amplifying circuit between described output filter circuit and the IGBT bridge inverter main circuit in turn; the PID regulating circuit; pwm control circuit and IGBT drive circuit; form the controlling of sampling loop; described MCU control unit receives the sampled data of described output sampling amplifying circuit; and send instructions to the PID regulating circuit, via the PID regulating circuit; pwm control circuit and IGBT drive circuit are controlled described IGBT bridge inverter main circuit.
4. a kind of electric car charger according to claim 3 based on modularization control, it is characterized in that: the input of described AC-DC link is parallel with auxiliary power circuit, and civil power is connected to described protective circuit via this auxiliary power circuit and input protection circuit; The output of described AC-DC link is connected to described protective circuit through output protection circuit; Described IGBT bridge inverter main circuit is connected to described protective circuit through the IGBT protective circuit, and the output of this protective circuit is connected to described MCU control unit.
5. according to each described a kind of electric car charger of claim 1-4 based on modularization control, it is characterized in that: described MCU control unit also is connected with and is provided with and display circuit, this setting and display circuit and the two-way communication of described MCU control unit should be provided with and display circuit receives user instruction, and being sent to described MCU control unit, this MCU control unit is controlled the operating state of described AC-DC link by the user instruction that receives.
6. according to each described a kind of electric car charger based on modularization control of claim 1-4, it is characterized in that: described MCU control unit is provided with the CAN-BUS bus interface.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201749081U CN201708573U (en) | 2010-04-29 | 2010-04-29 | Modularization control based electric automobile charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201749081U CN201708573U (en) | 2010-04-29 | 2010-04-29 | Modularization control based electric automobile charger |
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| Publication Number | Publication Date |
|---|---|
| CN201708573U true CN201708573U (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201749081U Expired - Lifetime CN201708573U (en) | 2010-04-29 | 2010-04-29 | Modularization control based electric automobile charger |
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| Country | Link |
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| CN (1) | CN201708573U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231559A (en) * | 2011-07-08 | 2011-11-02 | 沈翠凤 | Self-adaptive rapid charging system for electric vehicle |
| CN106068593A (en) * | 2015-06-01 | 2016-11-02 | 广东欧珀移动通信有限公司 | Charging circuit and mobile terminal |
| CN106602565A (en) * | 2017-02-17 | 2017-04-26 | 四川大尔电气有限责任公司 | Electric vehicle charging station power supply system based on solid-state transformer |
-
2010
- 2010-04-29 CN CN2010201749081U patent/CN201708573U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231559A (en) * | 2011-07-08 | 2011-11-02 | 沈翠凤 | Self-adaptive rapid charging system for electric vehicle |
| CN102231559B (en) * | 2011-07-08 | 2014-04-09 | 沈翠凤 | Self-adaptive rapid charging system for electric vehicle |
| CN106068593A (en) * | 2015-06-01 | 2016-11-02 | 广东欧珀移动通信有限公司 | Charging circuit and mobile terminal |
| CN106068593B (en) * | 2015-06-01 | 2018-06-12 | 广东欧珀移动通信有限公司 | Charging circuit and mobile terminal |
| US10819121B2 (en) | 2015-06-01 | 2020-10-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging circuit and mobile terminal |
| US10938228B2 (en) | 2015-06-01 | 2021-03-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charging circuit and mobile terminal |
| CN106602565A (en) * | 2017-02-17 | 2017-04-26 | 四川大尔电气有限责任公司 | Electric vehicle charging station power supply system based on solid-state transformer |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |