CN203434886U - Combined positive and negative pulse quick-charging digital power supply system for electric vehicle - Google Patents
Combined positive and negative pulse quick-charging digital power supply system for electric vehicle Download PDFInfo
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- CN203434886U CN203434886U CN201320540206.4U CN201320540206U CN203434886U CN 203434886 U CN203434886 U CN 203434886U CN 201320540206 U CN201320540206 U CN 201320540206U CN 203434886 U CN203434886 U CN 203434886U
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Abstract
The utility model discloses a combined positive and negative pulse quick-charging digital power supply system for electric vehicles. The system comprises a power-frequency AC input power grid, a main circuit, a control circuit and an electric vehicle battery load, wherein an input end of the main circuit is connected with the power-frequency AC input power grid, and an output end of the main circuit is connected with the electric vehicle battery load; the main circuit comprises an input rectification filtering module, a high-frequency inversion module, a power transformation module, an output rectification filtering module and a positive and negative pulse generating module which are electrically connected in sequence; and the control circuit comprises a DSP digitalized control module, a fault protection module, a current/voltage sampling and signal processing module, an MOSFET high-frequency driving module and an IGBT driving module. Through adoption of the combined positive and negative pulse quick-charging digital power supply system, the output power and charging efficiency of a pulse charging power supply are effectively improved. The combined positive and negative pulse quick-charging digital power supply system has the advantages of high output power, high charging efficiency, fast charging speed, high reliability and the like, and is particularly suitable for high-efficiency high-speed charging of the electric vehicles.
Description
Technical field
The utility model relates to electric vehicle rapid charging field, particularly a kind of electric automobile positive negative pulse stuffing combination quick charge digitlization power-supply system.
Background technology
At present, the used for electric vehicle storage battery of China is mostly lead acid accumulator, this be mainly due to lead acid accumulator possess skills maturation, cost is low, battery capacity is large, follow the advantages such as load good output, memory-less effect.Although the technology of storage battery self has had no small progress in recent years; but as its energy, the development of supplementary charger is very slow again; restriction due to various technical conditions; the charging method adopting all fails effectively to defer to the physical chemistry rule of inside battery mostly; make whole charging process exist serious overcharging and the phenomenon such as gassing; charge efficiency is low, and quick charge technology still fails to be solved so far.
Charging electric vehicle power supply, is mainly to adopt high-frequency power electronic switch to replace controllable silicon at present, improves switching speed and charge efficiency, reduces the volume of transformer and filter, saves raw material.But along with the raising of switching frequency and the shortening of switch periods, under conventional P WM control mode, switching device is operated in hard switching state, the electric current that the Dead Time that each synchronous conducting of switching tube stays produces and voltage stack loss, the existence of switching loss has limited the raising of inverter power density, severe inhibition the raising of switching frequency, electric energy actuating force to fast and stable charging, assurance electric automobile causes great obstacle, has limited miniaturization and the lightweight of converter.Meanwhile, when switching tube is operated in hard switching state, the suffered switch stress of power device is large, also can cause very high di/dt and du/dt, thereby produce large electromagnetic interference, brings electromagnetic environmental pollution.Existing charging electric vehicle technology mainly has following defect:
(1) during for, high-power charging, poor performance, charging system are unstable, and power output is little, and charge efficiency is low, and charging rate is slow;
(2) do not consider the gassing polarization phenomena in battery charging process, cause actual charging curve to run counter to theoretical charging curve, thereby cause the waste of the low and electric energy of charge efficiency;
(3) response speed is slow, easily produces electromagnetic environmental pollution;
(4) control precision is low, and reliability is low, and volume is large, Heavy Weight.
Utility model content
The shortcoming and deficiency that in order to overcome prior art, exist, the utility model provides a kind of electric automobile positive negative pulse stuffing combination quick charge digitlization power-supply system.
The utility model adopts following technical scheme:
A positive negative pulse stuffing combination quick charge digitlization power-supply system, comprises industrial frequency AC input electrical network, main circuit, control circuit and batteries of electric automobile load; The input of described main circuit is connected with industrial frequency AC input electrical network, and the output of main circuit is connected with batteries of electric automobile load;
Described main circuit comprises input rectifying filtration module, high-frequency inversion module, power voltage changing module, output rectification filter module and the positive negative pulse stuffing generation module of electrical connection successively;
Described control circuit comprises DSP Digital Control module, error protection module, current-voltage sampling and signal processing module, MOSFET high-frequency drive module, IGBT driver module;
Described DSP Digital Control module is connected with output, the input of MOSFET high-frequency drive module and the input of IGBT driver module of output, current-voltage sampling and the signal processing module of error protection module respectively;
The input of described error protection module is connected with industrial frequency AC input electrical network; the input of described current-voltage sampling and signal processing module is connected with the output of output rectification filter module; the output of described MOSFET high-frequency drive module is connected with the input of high-frequency inversion module, and the output of described IGBT driver module is connected with the input of positive negative pulse stuffing generation module.
Described DSP Digital Control module comprises digital signal processor, and described digital signal processor adopts TMS320F2812 chip.
The embedded task manager of described digital signal processor and timer, described task manager comprises pwm unit, described pwm unit produces four road pulse-width signals, the PWM phase shift modulation of controlling main circuit, described timer is realized the switching of positive negative pulse stuffing by timer cycle interruption.
Described error protection module comprises interconnective over-voltage detection circuit, undervoltage detection circuit, over-current detection circuit, excess temperature testing circuit and AND circuit.
Described positive negative pulse stuffing generation module comprises positive pulse output circuit and negative pulse output circuit, described positive pulse output circuit is comprised of IGBT switching tube and batteries of electric automobile load, and described negative pulse output circuit is comprised of IGBT switching tube, electric discharge exclusion and batteries of electric automobile load.
Described high-frequency inversion module comprises converter bridge switching parts pipe group.
Described MOSFET high-frequency drive module is interconnected to constitute by pulsed drive transformer, MOSFET formula totem pushing structure.
Operation principle of the present utility model:
The utility model adopts voltage-type full-bridge phase-shift soft switch main circuit, and by digital PI control algolithm and timer cycle interruption, the current/voltage of realizing respectively charge power supply regulates and positive negative pulse stuffing Polarity Control.
Single phase industrial frequence alternating current is after through input rectifying filtration module, rectification is smooth direct current electricity, again by high-frequency inversion module, then by power voltage changing module, output rectification filter module, flow in positive negative pulse stuffing generation module, DSP Digital Control module is controlled opening of this module I GBT pipe and is turn-offed acquisition positive negative pulse stuffing charging current by IGBT driver module, finally flows into batteries of electric automobile to be charged (lead acid accumulator), meanwhile, DSP Digital Control module detects electric current and the voltage signal of the output of output rectification filter module according to current-voltage sampling and signal processing module, the signal detecting and given relevant parameter are compared, after the PI control algolithm computing of DSP Digital Control module, issue signal of pwm unit of the embedded task manager of DSP Digital Control module, so pwm unit produces four tunnel phase-shift PWM signals, Gai Si road phase-shift PWM signal is amplified and is gone to control turning on and off of high-frequency inversion module switch mosfet pipe by MOSFET high-frequency drive module, thereby obtain high-frequency high-voltage, this high-frequency high-voltage becomes required current/voltage through overpower voltage changing module with output rectification filter module converts again, flow into positive negative pulse stuffing generation module, DSP Digital Control module is calculated the periodic quantity of timer cycle interruption by given sequential, and according to the low and high level output of given sequential procedure change assigned I/O mouth, thereby by IGBT driver module, amplify the opening and turn-offing of IGBT switching tube remove to control positive negative pulse stuffing generation module, thereby obtain positive negative impulse current, and realize the charging to cell load according to correlation timing, overvoltage in described error protection module, under-voltage, overcurrent and thermal-shutdown circuit detect single phase industrial frequence voltage, primary current and radiator temperature, the voltage detecting, electric current and temperature signal, give error protection module, as there is the phenomenon of overvoltage, under-voltage, overcurrent and excess temperature, error protection module will give DSP Digital Control module a low level fault guard signal, DSP Digital Control module produces low level PWM by the switching tube of MOSFET high-frequency drive module shuts down high-frequency inversion module, to protect main circuit.
The beneficial effects of the utility model:
(1) power output is large, and volume is little, lightweight; The utility model adopts high-power full-bridge converter to obtain powerful output, thereby make power density large, power output is large, realizes the DSP digitlization efficient high-speed of electric car charger and control, the charging system volume of having realized high-power charging is little, lightweight.
(2) charge efficiency is high, and charging rate is fast; The utility model adopts reliable and stable PWM soft switch technique greatly to improve energy conversion efficiency, and charge efficiency is high; Adopt intelligent charging technology to adjust in real time charging curve by positive negative pulse stuffing combined charging, reach optimal charge effect, charging rate is fast.
(3) system stability, fast response time, control precision is high, and performance is good, and reliability is high; This system be take digital signal processor DSP as core, digital Control Technology is applied in full-bridge inverting system, by software programming, make system realize stable, reliable high-power output, in addition, the utility model has also adopted the digital Control Technology of current/voltage feedback, adopted the charging of DSP technology and Switching Power Supply, made the dynamic characteristic of system good, control precision is high, system stability, safe during charging, reliability is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the circuit theory diagrams of main circuit of the present utility model;
Fig. 3 is the circuit theory diagrams of MOSFET high-frequency drive module of the present utility model;
Fig. 4 is the circuit theory diagrams of IGBT driver module of the present utility model;
Fig. 5 is the circuit theory diagrams of positive negative pulse stuffing generation module of the present utility model;
Fig. 6 is the structural representation of DSP Digital Control module of the present utility model;
Fig. 7 is the control flow chart of DSP Digital Control module of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, a kind of electric automobile positive negative pulse stuffing combination quick charge digitlization power-supply system, comprises industrial frequency AC input electrical network, main circuit, control circuit and batteries of electric automobile load; The input of described main circuit is connected with industrial frequency AC input electrical network, and the output of main circuit is connected with batteries of electric automobile load; Described industrial frequency AC input electrical network is 220V alternating current.
Described main circuit comprises input rectifying filtration module 101, high-frequency inversion module 102, power voltage changing module 103, output rectification filter module 104 and the positive negative pulse stuffing generation module 105 of electrical connection successively;
Described control circuit comprises DSP Digital Control module 108, error protection module 107, current-voltage sampling and signal processing module 106, MOSFET high-frequency drive module 109, IGBT driver module 110;
Described DSP Digital Control module 108 is connected with output, the input of MOSFET high-frequency drive module 109 and the input of IGBT driver module 110 of output, current-voltage sampling and the signal processing module 106 of error protection module 107 respectively;
The input of described error protection module 107 is connected with industrial frequency AC input electrical network;
The input of described current-voltage sampling and signal processing module 106 is connected with the output of output rectification filter module 104, described current-voltage sampling and signal processing module 106 are current/voltage transducer, and current-voltage sampling and signal processing module 106 acquisition system electric currents and voltage signal are changed through digital signal processor and calculated and regulate pwm signal phase shifting angle with electric current and the voltage of control system by A/D.
The output of described MOSFET high-frequency drive module is connected with the input of high-frequency inversion module.
The output of described IGBT driver module is connected with the input of positive negative pulse stuffing generation module.
Described error protection module 107 comprises interconnective over-voltage detection circuit, undervoltage detection circuit, over-current detection circuit, excess temperature testing circuit and AND circuit, detects industrial frequency AC input voltage, is voltage check device; Detection of primary over-current signal is Hall current sensor; Detecting excess temperature signal, is temperature relay;
Described error protection module is by detecting electric current and the voltage of charging electric vehicle power-supply system, and whether temperature is in normal range (NR), feeds back signal to DSP Digital Control module.
Described DSP Digital Control module is changed by A/D, the electric current collecting and voltage signal are delivered in digital signal processor, digital signal processor carries out closed-loop control by PI algorithm to the electric current of main circuit and voltage, produce the phase-shift PWM waveform needing, through the turn-on and turn-off time of MOSFET high-frequency drive module controls power device switch mosfet pipe, to reach the object of controlling electric current and voltage.
Simultaneously, described DSP Digital Control module is by timer cycle interruption, the timer periodicity counting to get is delivered in digital signal processor, digital signal processor ordered pair assigned I/O port when given carries out the conversion of low and high level, thereby opening and turn-offing by IGBT driver module power ratio control device IGBT, to reach the object that produces positive negative impulse current, realize Digital Control;
Described positive negative pulse stuffing generation module regulates in real time to positive negative pulse stuffing, by IGBT driver module, the low and high level of assigned I/O port output is amplified, and controls opening and shutting off of IGBT pipe, thereby realizes the output of positive pulse electric current and negative pulse electric current;
Described MOSFET high-frequency drive module drives high-frequency inversion module the switching time by power ratio control device switch mosfet pipe;
Described IGBT driver module is opened and is turn-offed driving positive negative pulse stuffing generation module by power ratio control device IGBT switching tube;
As shown in Figure 2, described main circuit adopts voltage-type full-bridge phase-shifted soft switch converter, its topological structure consists of input rectifying filtration module, high-frequency inversion module, power voltage changing module, output rectification filter module, positive negative pulse stuffing generation module, wherein V1-A and V1-B are input rectifying diode, V1～V4 is 4 switch mosfet pipes, on each switching tube with parasitic diode and parasitic capacitance, L5 is resonant inductance, V14～V17 is output rectifier diode, and inductance L 6, capacitor C 23～C33 form output filter circuit.The brachium pontis that V1 and V3 form is leading-bridge, the brachium pontis that V2 and V4 form is lagging leg, and 2 power tubes of each brachium pontis become 180 ° of complementary conductings, and the angle of flow between two brachium pontis differs a phase place, be phase shifting angle, by regulating this phase shifting angle just can regulation output electric current and voltage.In high-frequency converter loop, the parasitic capacitance of master power switch pipe and the stray inductance of isolating transformer, leakage inductance and resonant inductance etc. have formed a LC resonant tank, in device for power switching switching process, realize the change of current of no-voltage resonance, make it be operated in soft on off state, switching loss is low, and the electromagnetic stress of device significantly reduces.
As shown in Figure 3, described MOSFET high-frequency drive module is interconnected to constitute by pulsed drive transformer, MOSFET formula totem pushing structure.The totem pillar pushing structure that the former limit of described high-frequency drive module has adopted high speed MOSFETN1b～N4b to form, the driving pulse PWM1 that can send over DSP digital control module～PWM4 realizes and switches fast and strengthen driving power.Drive circuit secondary has adopted voltage-stabiliser tube D9b～D10b, D16b～D17b, D23b～D24b, D30b～D31b to carry out voltage stabilizing clamper to driving pulse, with the former limit of the too high damage converter of the driving pulse amplitude translation circuit high-voltage MOSFET pipe V1～V4 that guarantees to be converted to through driving transformer T1b and T2b; Capacitor C 7b～C10b accelerates to drive to high-voltage MOSFET pipe V1～V4, with eliminate as far as possible open that MOSFET the Miller effect constantly brings open time delay adverse effect; The repid discharge loop that D13b and V1b, D20b and V2b, D27b and V3b, D34b and V4b form can, along turn-offing after the acceleration pulse of driving pulse turn-off time, be eliminated and turn-off the secondary conducting that MOSFET the Miller effect causes constantly.
As shown in Figure 4, described IGBT driver module mainly consists of TLP250 opto-coupler chip, due to the I/O mouth output of DSP Digital Control module is the square-wave signal of 3.3V, can not meet the power requirement that drives IGBT, and cannot realize the isolation of control circuit and main circuit, therefore the utility model adopts the TLP250 high-speed photoelectric coupler of Japanese Toshiba to form IGBT drive circuit, and the I/O that can send over DSP Digital Control module drives signal to realize to switch fast and strengthen driving power.The I/O of DSP Digital Control module 108 drives the moving signal output part of two-way and is connected with 2 pins of 2 TLP250 respectively, and the output of TLP250 is extremely connected with G, the E of 2 IGBT switching tubes of positive negative pulse stuffing generation module respectively.Like this, the I/O signal of being exported to the 3.3V of TLP250 by DSP Digital Control module 108 does not need through level conversion, only need just can directly drive the IGBT in positive negative pulse stuffing generation module 105 by IGBT driver module 110; When the I/O output signal of DSP Digital Control module 108 is high level, by IGBT driver module 110, the G of IGBT, E interpolar obtain the driving signal of one+15V and are open-minded; When the I/O of DSP Digital Control module 108 is output as low level, by IGBT driver module 110, the G of IGBT, E interpolar obtain the driving signal of one-7V and turn-off, and so just can meet well the requirement of quick IGBT switching tube.
As shown in Figure 5, positive negative pulse stuffing generation module comprises positive pulse output circuit and negative pulse output circuit, described positive pulse output circuit consists of IGBT switching tube and batteries of electric automobile load, and described negative pulse output circuit consists of IGBT switching tube, electric discharge exclusion and batteries of electric automobile load.
The utility model produces timer cycle interruption by DSP digital control module 108, and realize according to the sequential of procedure stipulation the output low and high level conversion that positive negative pulse stuffing is controlled I/O port, after the amplification of IGBT driver module 110, realize the control to positive negative pulse stuffing.In positive pulse, produce the stage, DSP digital control module 108 is controlled I/O port I/O1 output high level and I/O2 output low level and is amplified through IGBT driver module 110, thereby control, open IGBT pipe V1 and turn-off IGBT pipe V2, realize the charging of positive pulse electric current to cell load.In negative pulse, produce the stage, DSP digital control module 108 is controlled I/O port I/O1 output low level and I/O2 output high level and is amplified through IGBT driver module, thereby control, turn-off IGBT pipe V1 and open IGBT pipe V2, cell load discharges in short-term by electric discharge exclusion, instantaneous relase is discharging current significantly, forms negative pulse discharge electric current, thereby eliminates the gassing polarization phenomena of battery, efficiently utilize charging current, rate reduces the wastage.
As shown in Figure 6, DSP Digital Control module comprises digital signal processor, described digital signal processor adopts TMS320F2812, and its basic structure comprises pwm signal output module, RS232/485 and eCAN communication module, human-computer interface module LCD interface, memory module RAM and FLASH, digital I/O mouth, A/D analog input.The analog signal that A/D samples is into delivered to the A/D ALT-CH alternate channel of DSP Digital Control module 108, DSP Digital Control module 108 realizes A/D by software algorithm and changes, and exports four tunnel phase-shift PWM signals, after the 109 isolation amplifications of MOSFET high-frequency drive module, main circuit is carried out to phase shift modulation.Adopted timer cycle interruption and underflow to interrupt herein, after timer cycle interruption triggers, in cycle interruption service routine, the comparison match value of original increasing counting is changed to and subtracts the matching value that counting needs, in underflow down trigger, the original comparison match value that subtracts counting is changed to the comparison match value that next cycle increasing counting needs in underflow interrupt service routine, realize full-bridge phase-shift soft switch and control.DSP Digital Control module 108 realizes Timer Controlling sequential by initialize program simultaneously, by timer cycle interruption, realize the low and high level of I/O port and change, thereby and amplify positive negative pulse stuffing generation module is carried out to the switching of positive negative pulse stuffing through IGBT driver module.Adopted timer cycle interruption herein, when timer cycle count is during to set-point, carry out the operation of sequential procedure regulation, thereby control I/O port, export opening and turn-offing of corresponding low and high level control IGBT switching tube, thereby realize generation and the switching of positive negative pulse stuffing.
As shown in Figure 7; be mainly the control with output current and voltage magnitude and positive negative impulse current of reading that realizes A/D transformation result and timer cycle interruption cycle count value, realize that phase shifting angle is adjustable, the modulation of the phase shifting angle of driving pulse, the polar modulation of pulse, current/voltage control and error protection.The operation principle of control system program is: by charging current and the voltage of output are carried out to PI algorithm, charging current and voltage obtain value of feedback I through electric current and voltage feedback circuit detection
fand U
f, value of feedback and set-point I
gand U
gcompare and obtain deviation e; E is as the input value of control system, control system produces phase-shift PWM signal according to input value e according to certain control algolithm, phase-shift PWM signal, as control signal, is controlled the time that turns on and off of main circuit power switch, controls in real time charging current and the voltage magnitude of charger.The low and high level that control system program realizes I/O port by timer cycle interruption is simultaneously changed, thereby and amplify positive negative pulse stuffing generation module is carried out to the switching of positive negative pulse stuffing through IGBT driver module, thereby realize reversal and the duration of positive pulse and negative pulse.
The control sequential that positive negative pulse stuffing of the present utility model produces is: the burst length is adjustable continuously from 1s～10s, and burst length and corresponding Dead Time, discharge time change in proportion, the low and high level control time of corresponding I/O port I/O1, I/O2 also changes in proportion.Concrete operations are as follows: after power supply start 3s, automatically detect actual output current, if now find that electric current is less than 1.5A, think in idle mode, time delay is automatic cut-off power after one minute.If now find that electric current is greater than 1.5A, start so to enter normal the first pre-charging stage.First stage adopts the first preliminary filling of fixing 5A direct current 3 minutes with activated batteries, and this Phase I/O1 maintains high level, I/O2 output low level.Second stage is that the large electric current quick charge of positive pulse and negative pulse are repaired the battery stage, and within 3 minutes, preliminary filling finishes, and electric current starts to be lifted to from 5A preliminary filling electric current the current value that pulse current is corresponding, and this Phase I/O1 maintains high level, I/O2 output low level.After 1s pulse current finishes, enter 10ms Dead Time, in Dead Time, the equal output low level of I/O1 and I/O2 is turn-offed IGBT pipe V1 and V2 simultaneously; The dead band stage finishes, and V2 is open-minded for IGBT pipe, enters the negative pulse discharge stage, the 30ms that holds time, and this Phase I/O2 maintains high level, I/O1 output low level.The negative pulse discharge stage finishes, and again enters 30ms Dead Time, and in Dead Time, the equal output low level of I/O1 and I/O2 is turn-offed IGBT pipe V1 and V2 simultaneously, waits for that pulse current arrives again, thereby completes one-period.In whole battery charging process, sample circuit continues charging current to detect in real time, when detecting when actual pulse electric current is less than 5A, can think that battery is full of substantially, thereby enter phase III floating charge, this Phase I/O1 maintains high level, I/O2 output low level, and this stage forces the electric current of a 5A of output to carry out floating charge 3 minutes, power supply automatic shutdown after 3 minutes, control system prompting battery is full of.
Above-described embodiment is preferably execution mode of the utility model; but execution mode of the present utility model is not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection range of the present utility model.
Claims (7)
1. an electric automobile positive negative pulse stuffing combination quick charge digitlization power-supply system, is characterized in that, comprises industrial frequency AC input electrical network, main circuit, control circuit and batteries of electric automobile load; The input of described main circuit is connected with industrial frequency AC input electrical network, and the output of main circuit is connected with batteries of electric automobile load;
Described main circuit comprises input rectifying filtration module, high-frequency inversion module, power voltage changing module, output rectification filter module and the positive negative pulse stuffing generation module of electrical connection successively;
Described control circuit comprises DSP Digital Control module, error protection module, current-voltage sampling and signal processing module, MOSFET high-frequency drive module, IGBT driver module;
Described DSP Digital Control module is connected with output, the input of MOSFET high-frequency drive module and the input of IGBT driver module of output, current-voltage sampling and the signal processing module of error protection module respectively;
The input of described error protection module is connected with industrial frequency AC input electrical network; the input of described current-voltage sampling and signal processing module is connected with the output of output rectification filter module; the output of described MOSFET high-frequency drive module is connected with the input of high-frequency inversion module, and the output of described IGBT driver module is connected with the input of positive negative pulse stuffing generation module.
2. a kind of electric automobile positive negative pulse stuffing combination quick charge digitlization power-supply system according to claim 1, is characterized in that, described DSP Digital Control module comprises digital signal processor, and described digital signal processor adopts TMS320F2812 chip.
3. a kind of electric automobile positive negative pulse stuffing according to claim 2 combines quick charge digitlization power-supply system, it is characterized in that, the embedded task manager of described digital signal processor and timer, described task manager comprises pwm unit, and described pwm unit produces four road pulse-width signals.
4. a kind of electric automobile positive negative pulse stuffing according to claim 1 combines quick charge digitlization power-supply system; it is characterized in that, described error protection module comprises interconnective over-voltage detection circuit, undervoltage detection circuit, over-current detection circuit, excess temperature testing circuit and AND circuit.
5. a kind of electric automobile positive negative pulse stuffing according to claim 1 combines quick charge digitlization power-supply system, it is characterized in that, described positive negative pulse stuffing generation module comprises positive pulse output circuit and negative pulse output circuit, described positive pulse output circuit is comprised of IGBT switching tube and batteries of electric automobile load, and described negative pulse output circuit is comprised of IGBT switching tube, electric discharge exclusion and batteries of electric automobile load.
6. a kind of electric automobile positive negative pulse stuffing combination quick charge digitlization power-supply system according to claim 1, is characterized in that, described high-frequency inversion module comprises converter bridge switching parts pipe group.
7. a kind of electric automobile positive negative pulse stuffing combination quick charge digitlization power-supply system according to claim 1, is characterized in that, described MOSFET high-frequency drive module is interconnected to constitute by pulsed drive transformer, MOSFET formula totem pushing structure.
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| CN201320540206.4U CN203434886U (en) | 2013-08-30 | 2013-08-30 | Combined positive and negative pulse quick-charging digital power supply system for electric vehicle |
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| CN201320540206.4U CN203434886U (en) | 2013-08-30 | 2013-08-30 | Combined positive and negative pulse quick-charging digital power supply system for electric vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427702A (en) * | 2013-08-30 | 2013-12-04 | 华南理工大学 | Digitization power system capable of achieving positive and negative pulse combination quick-acting charging of electric car |
| CN111409497A (en) * | 2020-04-29 | 2020-07-14 | 浙江万马新能源有限公司 | Charging pile with pulse charging function |
-
2013
- 2013-08-30 CN CN201320540206.4U patent/CN203434886U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427702A (en) * | 2013-08-30 | 2013-12-04 | 华南理工大学 | Digitization power system capable of achieving positive and negative pulse combination quick-acting charging of electric car |
| CN111409497A (en) * | 2020-04-29 | 2020-07-14 | 浙江万马新能源有限公司 | Charging pile with pulse charging function |
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