CN202231473U - Direct-current charger with high voltage and large current - Google Patents
Direct-current charger with high voltage and large current Download PDFInfo
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- CN202231473U CN202231473U CN2011203695254U CN201120369525U CN202231473U CN 202231473 U CN202231473 U CN 202231473U CN 2011203695254 U CN2011203695254 U CN 2011203695254U CN 201120369525 U CN201120369525 U CN 201120369525U CN 202231473 U CN202231473 U CN 202231473U
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Abstract
The embodiment of the utility model discloses a direct-current charger with a high voltage and a large current, comprising an APFC (Active Power Factor Correction) rectifier module, a charging module and a master control module, wherein the APFC rectifier module improves an output power factor of a charging system greatly; a DC/AC (Direct Current/Alternating Current) conversion module of the charging module, by the control of the master control module, can realize zero voltage switch-on and zero current switch-off of an IGBT (Insulated Gate Bipolar Translator); the switch power consumption is close to zero, so that the temperature rising of a power device UGBT in the DC/AC conversion module is very low, thereby improving the service life and the reliability of the direct-current charger; a high-frequency transformer of a boosting module of the charging module is used for boosting positive and negative high-voltage pulses from the DC/AC conversion module; and the DC/AC conversion module of the charging module converts an alternating current from the boosting module into a charging current of a power storage battery. Therefore, the direct-current charger with the high voltage and the large current disclosed by the embodiment of the utility model has the characteristics of reliability and effectiveness.
Description
Technical field
The utility model relates to the power technology field, relates in particular to a kind of high-voltage great-current dc charging motor.
Background technology
Characteristics such as charger is to adopt the high frequency electric source technology, and the Intelligent Dynamic adjustment charging technique of uses advanced has the charge efficiency height, and is simple to operate, in light weight, and volume is little.
Existing domestic and international charging electric vehicle machine is generally realized high-voltage great-current output through following dual mode:
A kind of is to be boosted through Industrial Frequency Transformer by the alternating current of electrical network to obtain HVDC after the rectification, charge to power accumulator through conversion, but there are shortcomings such as output capacity is little, output current is little in this kind method;
Another kind is to adopt several charging modules to be composed in series, and there is the uneven hidden danger of pressing of each charging module in this kind method, presses if each charging module is uneven, then possibly cause the formation of system's circulation, and then make system crash
The utility model content
The utility model embodiment provides a kind of high-voltage great-current dc charging motor, is used to improve the reliability and the validity of high-voltage great-current charging system.
For solving the problems of the technologies described above, the utility model embodiment provides following technical scheme:
A kind of novel high-pressure heavy DC charger comprises:
Be used for the three-phase alternating current APFC rectification module that carries out APFC APFC (Active Power Factor Correction) rectification to input, above-mentioned APFC rectification module is by single tube insulated gate bipolar transistor IGBT module construction;
The charging module that is connected with the output of above-mentioned APFC rectification module,
Wherein, above-mentioned charging module comprises:
The voltage transition that is used for above-mentioned APFC rectification module output is the DC/AC conversion module of positive or negative high voltage pulse, and above-mentioned DC/AC conversion module is by full-bridge IGBT module construction;
Be connected with above-mentioned DC/AC conversion module, be used for boost module that the positive or negative high voltage pulse of above-mentioned DC/AC conversion module output is boosted, above-mentioned boost module is made up of high frequency transformer;
Be connected with above-mentioned boost module, be used for the alternating current of above-mentioned boost module output is changed into the AC/DC conversion module of the charging current of power accumulator;
Above-mentioned dc charging motor also comprises: be connected with above-mentioned charging module with above-mentioned APFC rectification module, be used for providing to the DC/AC conversion module of above-mentioned APFC rectification module, above-mentioned charging module respectively the main control module of pulse width modulation (PWM) drive signal.
Therefore; To APFC rectification module, DC/AC conversion module PWM is provided drive signal respectively by main control module in the high-voltage great-current dc charging motor of the utility model embodiment; Can realize the control to the duty ratio of the output signal of telecommunication of each module, wherein, the APFC rectification module has adopted the APFC technology that the three-phase alternating current of input is carried out the APFC rectification; Greatly improve the output power factor of charging system; The DC/AC conversion module is made up by IGBT, and it can realize that under the control of main control module IGBT is that no-voltage is opened zero current and closed, and the switch power consumption is near zero; Therefore the power device IGBT temperature rise in the DC/AC conversion module is very low; Improved the useful life and the reliability of dc charging motor, boosted, and the alternating current of boost module output has been changed into the charging current of power accumulator by the AC/DC conversion module through the positive or negative high voltage pulse that the high frequency transformer of boost module is exported the DC/AC conversion module; To sum up, the high-voltage great-current dc charging motor among the utility model embodiment has the characteristics of reliability and validity.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Example structure sketch map of high-voltage great-current dc charging motor dc charging motor that Fig. 1 provides for the utility model embodiment;
Another example structure sketch map of high-voltage great-current dc charging motor that Fig. 2 provides for the utility model embodiment;
Embodiment circuit theory diagrams of APFC rectification circuit that Fig. 3 provides for the utility model embodiment;
Embodiment circuit theory diagrams of DC/AC translation circuit that Fig. 4 provides for the utility model embodiment;
Embodiment circuit theory diagrams of booster circuit that Fig. 5 provides for the utility model embodiment;
Embodiment circuit theory diagrams of AC/DC translation circuit that Fig. 6 provides for the utility model embodiment;
Another embodiment circuit theory diagrams of AC/DC translation circuit that Fig. 7 provides for the utility model embodiment;
Example structure sketch map of main control module that Fig. 8 provides for the utility model embodiment;
The main interface of the charging sketch map of the human-computer interaction module that Fig. 9 provides for the utility model embodiment;
Figure 10 is provided with the interface sketch map for the parameter of the human-computer interaction module that the utility model embodiment provides;
The charging circuit original graph that Figure 11 forms for two charging modules that the utility model embodiment provides.
Embodiment
The utility model embodiment provides a kind of high-voltage great-current dc charging motor.
For making that utility model purpose, characteristic, the advantage of the utility model can be more obvious and understandable; To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; Obviously, described embodiment only is the utility model part embodiment, but not whole embodiment.
Describe in the face of a kind of high-voltage great-current dc charging motor among the utility model embodiment down, see also Fig. 1, the high-voltage great-current dc charging motor 100 among the utility model embodiment comprises:
Wherein, APFC rectification module 101 is used for the three-phase alternating current of input is carried out the APFC rectification; In the utility model embodiment, the APFC rectification module is by single tube insulated gate bipolar transistor (IGBT, Insulated Gate Bipolar Transistor) module construction.
Wherein, charging module 102 comprises:
The voltage transition that is used for 101 outputs of APFC rectification module is the DC/AC conversion module 1021 of positive or negative high voltage pulse, and in the utility model embodiment, DC/AC conversion module 1021 is by full-bridge IGBT module construction;
Be connected with DC/AC conversion module 1021, be used for boost module 1022 that the positive or negative high voltage pulse of DC/AC conversion module output is boosted, boost module 1022 is made up of high frequency transformer;
Be connected with boost module 1022, be used for the alternating current of boost module output is changed into the AC/DC conversion module 1023 of the charging current of power accumulator;
In the utility model embodiment, main control module 103 is made up by digital signal processor (DSP, Digital Signal Processing), and certainly, main control module 103 also can be made up by other processor, does not limit here.
In the utility model embodiment; Dc charging motor 100 can be realized by a charging module 102; Also can be by two or more charging modules 102 through being connected in parallel; And the output dc bus of shared APFC rectification module 101 realizes, when dc charging motor comprises two or more charging module 102, and can be through in AC/DC conversion module 1023, inserting two filter capacitor plates; The output voltage of AC/DC conversion module is all pressed through above-mentioned two filter capacitors are firm and hard, thereby the circulation that effectively suppresses between the charging module forms at present.
Therefore; To APFC rectification module, DC/AC conversion module PWM is provided drive signal respectively by main control module in the high-voltage great-current dc charging motor of the utility model embodiment, can realizes control, wherein the duty ratio of the output signal of telecommunication of each module; The APFC rectification module has adopted the APFC technology that the three-phase alternating current of importing is carried out the APFC rectification; Greatly improve the output power factor of charging system, the DC/AC conversion module is made up by IGBT, and it can realize that under the control of main control module IGBT is that no-voltage is opened zero current and closed; The switch power consumption is near zero; Therefore the power device IGBT temperature rise in the DC/AC conversion module is very low, has improved the useful life and the reliability of dc charging motor, boosts through the positive or negative high voltage pulse that the high frequency transformer of boost module is exported the DC/AC conversion module; And change the alternating current of boost module output the charging current of power accumulator into by the AC/DC conversion module, can realize HVDC output effectively by single charging module.To sum up, the dc charging motor among the utility model embodiment has the characteristics of reliability and validity.
See also Fig. 2, in the utility model embodiment, high-voltage great-current dc charging motor 200 comprises:
APFC rectification module 201, charging module 202, main control module 203 and human-computer interaction module 204.
Wherein, APFC rectification module 201, the composition 26S Proteasome Structure and Function of charging module 202 and main control module 203 can with reference among Fig. 1 to APFC rectification module 101, the description of charging module 102 and main control module 103 is repeated no more here.
In the utility model embodiment, main control module 203 also is used for the parameter information of charging process is gathered, and parameter information for example comprises charging current parameter, power accumulator voltage parameter, charging interval parameter etc.
In the utility model embodiment, human-computer interaction module 204 is connected with main control module 203 through the serial digital PORT COM, and being used for provides Man Machine Interface and parameter information that main control module 203 is collected shows to the user.
In the utility model embodiment; Human-computer interaction module 203 also can pass through (the CAN of controller local area network; Controller Area Network) bus and power accumulator management system (BMS; Battery Management System) connects, obtain and show the detected power accumulator state information of BMS.
Therefore; High-voltage great-current dc charging motor among the utility model embodiment also comprises human-computer interaction module, and human-computer interaction module provides Man Machine Interface for the user, simplifies user's operating process; In addition; Human-computer interaction module is through serial digital PORT COM and main control module exchange message, and the parameter information that main control module collects is shown, makes the user can know working condition and the charging voltage in the charging process, the current information of dc charging motor more intuitively.
The circuit theory diagrams of the APFC rectification module among the utility model embodiment, DC/AC conversion module, boost module and AC/DC conversion module can be respectively like Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6.
In Fig. 3; The APFC rectification module is by 3 radio-frequency rectors (like the L1-L3 among Fig. 3); 6 single tube IGBT modules (like the Q1-Q6 among Fig. 3); 3 noninductive absorption electric capacity (like the C1-C3 among Fig. 3), 6 filter capacitors (like the E1-E6 among Fig. 3), and 2 power-type resistance (like the R1-R2 among Fig. 3) are formed.Main control module can be imported 6 PWM drive signals through the base stage and the emitter of Q1-Q6 gate pole to the APFC rectification module respectively.After the APFC rectification module carries out rectification to the three-phase alternating current of input, with direct current deliver on the dc bus output (as the output of the DC among Fig. 3+with DC output-).In the utility model embodiment, the model of above-mentioned single tube IGBT module for example can be FZ600R12KE3, certainly, also can adopt the single tube IGBT module of other model, does not limit here.
In Fig. 4, the DC/AC conversion module is made up of 1 electric capacity E7,13,2 bimodulus piece IGBT of the resistance R that is used for discharging (like the Q7-Q8 of Fig. 4), noninductive absorption electric capacity (like the C4-C7 of figure) and 1 capacitor board ZVS that is used for energy storage.The positive and negative direct current of APFC rectification module output flows into (like DC+ Fig. 4 and DC-) from positive terminal and the negative pole end of electric capacity E7 respectively; 4 pin and 5 pin of 4 pin and 5 pin that main control module can be through Q7,6 pin of Q7 and 7 pin, Q8; And 6 pin of Q8 and 7 pin are respectively to DC/AC conversion module input A, B, C and four PWM drive signals of D, realize that no-voltage opens the positive or negative high voltage pulse that no-voltage is closed phase shift output different duty.In the utility model embodiment, the model of above-mentioned bimodulus piece IGBT for example can be FF400R12KE3, certainly, also can adopt the bimodulus piece IGBT of other model, does not limit here.
In Fig. 5, boost module is made up of 1 high frequency transformer, the former limit N of high frequency transformer
0Two ends are connected with the output of DC/AC conversion module respectively, the secondary N of high frequency transformer
1And N
2Symmetry, i.e. N
1The number of turn and N
2Equal turn numbers, N
1The number of turn greater than N
0The number of turn, the voltage of DC/AC conversion module input is boosted realizing.
In Fig. 6; The AC/DC conversion module is piled (M1-M2), 4 fast recovery diodes (like the D1-D4 among Fig. 6), 2 resonant capacitances (like the C9-C12 among Fig. 6), 2 blocks of filter capacitor plates (like the E3-E4 among Fig. 6) and 2 radio-frequency rectors (like the L1-L2 among Fig. 6) by 2 full-bridge rectification bridges and is formed the secondary N of the high frequency transformer among Fig. 5
1And N
2Can be connected with b, c and d with a respectively, the high-tension electricity input AC/DC conversion module after boost module is boosted is among the utility model embodiment; The AC/DC conversion module has adopted the passive clamping technology; Utilize filter capacitor plate E3-E4 all to press, this AC/DC conversion module can be applicable under the scene of a charging module, also can be applicable under the scene of a plurality of charging module parallel connections; Can realize the charging module current-sharing of a plurality of parallel connections automatically, all press that the circulation that effectively suppresses between the charging module forms.The ac high-voltage that the AC/DC conversion module is imported boost module is exported to the power accumulator power supply after changing direct voltage into, and the direct voltage of its output is 1.2* (n
1/ n
0) * A
Former limit* B, wherein, n
1The secondary number of turn of expression boost module medium-high frequency transformer, n
0The former limit number of turn of expression boost module medium-high frequency transformer, A
Former limitThe amplitude on the former limit of expression boost module medium-high frequency transformer, B representes the positive or negative high voltage duty of ratio of DC/AC conversion module output.
In the utility model embodiment, can be further protective circuit be set at the output of AC/DC conversion module, with the fail safe and the reliability of further raising dc charging motor, be illustrated in figure 7 as the AC/DC conversion module that adds protective circuit; Wherein, SI1 is the current Hall transducer, is used for realizing output current is fed back; F1 is a dc fast speed fuse, and KM1 and KM2 are D.C. contactor, and resistance R 3 is connected with KM2; Dc charging motor is in when startup stage, and KM1 breaks off, KM2 is closed, R3 preliminary filling electric current; When the precharge of R3 flows to when reaching certain value, KM1 is closed, and KM2 breaks off.
The structured flowchart of main control module 80 can be as shown in Figure 8; Main control module 80 is made up by dsp chip 81; Peripheral circuit is formed by the PWM drive signal and amplifying circuit 82, CPLD (CPLD; Complex Programmable Logic Device) 83, feedback signal processing circuit 84, communication interface 85 form, wherein, main control module 80 can carry out communication through communication interface 85 and human-computer interaction module 90.
The main interface of the charging of the human-computer interaction module among the utility model embodiment can be as shown in Figure 9; The user can be known parameters such as the operating state (like charge mode, charging capacity, charging voltage, charging current etc.) of current dc charging motor, the current state of power accumulator (like the temperature of power accumulator, current dump energy etc.) and fault message from this main objective interface ground that charges; The user also can stop power accumulator being charged through " stopping charging " button control dc charging motor of clicking on this main interface of charging; Also can check the details of this power accumulator group through " checking power accumulator group details " button of clicking on this main interface of charging; When dc charging motor does not start; " parameter setting " entering parameter that the user also can click on this main interface of charging is provided with the interface; This parameter is provided with the interface can be shown in figure 10, and the user is provided with the interface through this parameter can carry out the setting of relevant parameter, like charge mode, charge mode, charging interval etc.
Need to prove; High-voltage great-current dc charging motor among the utility model embodiment is also composed in parallel by plural charging module; Figure 11 is the charging circuit topology diagram of the high-voltage great-current dc charging motor is made up of charging module 1101 and charging module 1102, and wherein, DC+ and DC-are the voltage that rectification module is exported; Charging module 1101 is connected in parallel with charging module 1102; And the dc bus of the shared rectification module of input, the cathode output end of charging module 1102 is connected with the cathode output end of charging module 1101, and the cathode output end of charging module 1102 is connected with the cathode output end of charging module 1101.Be appreciated that; The charging circuit topological diagram that the individual charging module of N (N is more than or equal to 2) composes in parallel all can be with reference to the connected mode of Figure 11; Be the dc bus of the shared rectification module of input of N charging module, the cathode output end of N charging module links to each other, and the cathode output end of N charging module links to each other; When the device parameters of N charging module was consistent, the direct voltage that the charging circuit that N charging module composes in parallel is exported was N*1.2* (n
1/ n
0) * A
Former limit* B, wherein, n
1The secondary number of turn of expression boost module medium-high frequency transformer, n
0The former limit number of turn of expression boost module medium-high frequency transformer, A
Former limitThe amplitude on the former limit of expression boost module medium-high frequency transformer, B representes the positive or negative high voltage duty of ratio of DC/AC conversion module output.It is thus clear that,, the charging circuit that N charging module composes in parallel can realize that N is doubly to the output current size of single charging module.
Therefore; In the dc charging motor of the utility model embodiment by main control module respectively to the control of the duty ratio of the output signal of telecommunication of APFC rectification module; Wherein, the APFC rectification module has adopted the APFC technology that the three-phase alternating current of importing is carried out the APFC rectification, greatly improves the output power factor of charging system; The DC/AC conversion module is made up by IGBT; It can realize that under the control of main control module IGBT is that no-voltage is opened zero current and closed, and the switch power consumption is near zero, so the power device IGBT temperature rise in the DC/AC conversion module is very low; The useful life and the reliability of dc charging motor have been improved; High frequency transformer through boost module boosts to the positive or negative high voltage pulse of DC/AC conversion module output, and changes the alternating current of boost module output the charging current of power accumulator into by the AC/DC conversion module, can realize heavy DC output effectively by single charging module.Further; Dc charging motor among the utility model embodiment also comprises human-computer interaction module, and human-computer interaction module provides Man Machine Interface for the user, simplifies user's operating process; In addition; Human-computer interaction module is through serial digital PORT COM and main control module exchange message, and the parameter information that main control module collects is shown, makes the user can know working condition and the charging voltage in the charging process, the current information of dc charging motor more intuitively.To sum up, the dc charging motor among the utility model embodiment has reliability, validity, characteristics such as easy and simple to handle.
More than a kind of high-voltage great-current dc charging motor that the utility model provided has been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the utility model embodiment; The part that on embodiment and range of application, all can change, to sum up, this description should not be construed as the restriction to the utility model.
Claims (5)
1. a high-voltage great-current dc charging motor is characterized in that, comprising:
Be used for the three-phase alternating current APFC rectification module that carries out APFC APFC rectification to input, said APFC rectification module is by single tube insulated gate bipolar transistor IGBT module construction;
The charging module that is connected with the output of said APFC rectification module,
Wherein, said charging module comprises:
The voltage transition that is used for said APFC rectification module output is the DC/AC conversion module of positive or negative high voltage pulse, and said DC/AC conversion module is by full-bridge IGBT module construction;
Be connected with said DC/AC conversion module, be used for boost module that the positive or negative high voltage pulse of said DC/AC conversion module output is boosted, said boost module is made up of high frequency transformer;
Be connected with said boost module, be used for the alternating current of said boost module output is changed into the AC/DC conversion module of the charging current of power accumulator;
Said dc charging motor also comprises: be connected with said charging module with said APFC rectification module, be used for providing to the DC/AC conversion module of said APFC rectification module, said charging module respectively the main control module of pulse width modulation (PWM) drive signal.
2. dc charging motor according to claim 1 is characterized in that,
Comprise at least two said charging modules;
Said at least two charging modules are connected in parallel, and the output dc bus of shared said APFC rectification module.
3. dc charging motor according to claim 1 and 2 is characterized in that,
Said main control module also is used for the parameter information of charging process is gathered;
Said dc charging motor also comprises:
Through the human-computer interaction module that the serial digital PORT COM is connected with said main control module, said human-computer interaction module is used for Man Machine Interface being provided and the said parameter information that said main control module collects being shown to the user.
4. dc charging motor according to claim 1 and 2 is characterized in that,
Said main control module is made up by digital signal processor DSP.
5. dc charging motor according to claim 2 is characterized in that,
Said AC/DC conversion module comprises the output voltage that is used for said AC/DC conversion module to carry out filtering and all presses two filter capacitor plates handling.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203695254U CN202231473U (en) | 2011-09-29 | 2011-09-29 | Direct-current charger with high voltage and large current |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203695254U CN202231473U (en) | 2011-09-29 | 2011-09-29 | Direct-current charger with high voltage and large current |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611171A (en) * | 2011-09-29 | 2012-07-25 | 株洲市达能科技有限公司 | High-pressure large-current direct-current charger |
| CN105656690A (en) * | 2016-03-08 | 2016-06-08 | 成都国蓉科技有限公司 | Data transmission method between optimizers in solar base station |
| WO2016192007A1 (en) * | 2015-06-01 | 2016-12-08 | 广东欧珀移动通信有限公司 | Charging circuit and mobile terminal |
| CN109494853A (en) * | 2018-11-27 | 2019-03-19 | 江苏万帮德和新能源科技股份有限公司 | A kind of connection control system of the high-tension electricity electronic transformer of charging |
| CN109560714A (en) * | 2018-12-29 | 2019-04-02 | 中车大连电力牵引研发中心有限公司 | Charger and it includes power device |
-
2011
- 2011-09-29 CN CN2011203695254U patent/CN202231473U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611171A (en) * | 2011-09-29 | 2012-07-25 | 株洲市达能科技有限公司 | High-pressure large-current direct-current charger |
| CN102611171B (en) * | 2011-09-29 | 2015-04-08 | 株洲市达能科技有限公司 | High-pressure large-current direct-current charger |
| WO2016192007A1 (en) * | 2015-06-01 | 2016-12-08 | 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 |
| CN105656690A (en) * | 2016-03-08 | 2016-06-08 | 成都国蓉科技有限公司 | Data transmission method between optimizers in solar base station |
| CN109494853A (en) * | 2018-11-27 | 2019-03-19 | 江苏万帮德和新能源科技股份有限公司 | A kind of connection control system of the high-tension electricity electronic transformer of charging |
| CN109560714A (en) * | 2018-12-29 | 2019-04-02 | 中车大连电力牵引研发中心有限公司 | Charger and it includes power device |
| CN109560714B (en) * | 2018-12-29 | 2024-08-09 | 中车大连电力牵引研发中心有限公司 | Charger and power device comprising same |
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