CN103427702A - Digitization power system capable of achieving positive and negative pulse combination quick-acting charging of electric car - Google Patents
Digitization power system capable of achieving positive and negative pulse combination quick-acting charging of electric car Download PDFInfo
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Abstract
The invention discloses a digitization power system capable of achieving positive and negative pulse combination quick-acting charging of an electric car. The digitization power system comprises a power frequency alternating-current input power grid, a main circuit, a control circuit and an electric car battery load. The input end of the main circuit is connected with the power frequency alternating-current input power grid, and the output end of the main circuit is connected with the electric car battery load. The main circuit comprises an input rectification filtration module, a high frequency inverting module, a power voltage transformation module, an output rectification filtration module and a positive and negative pulse generation module which are electrically connected in sequence. The control circuit comprises a DSP digital control module, a fault protection module, a current voltage sampling and signal processing module, an MOSFET high frequency driver module and an IGBT driver module. The digitization power system effectively improves the output power and the charging efficiency of a pulse current charging source, and has the advantages of being large in output power, high in charging efficiency, high in charging speed, high in reliability and particularly suitable for efficient high-speed electric car charging.
Description
Technical field
The present invention relates to the 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 adopted 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 the quick charge technology still fails to be solved so far.
The charging electric vehicle power supply, be mainly to adopt the 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 the 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.Simultaneously, when switching tube is operated in the 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 electric vehicle charging power 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.
Summary of the invention
The shortcoming and deficiency that in order to overcome prior art, exist, the invention provides a kind of electric automobile positive negative pulse stuffing combination quick charge digitlization power-supply system.
The present invention adopts following technical scheme:
A kind of electric automobile positive negative pulse stuffing combination quick charge digitlization power-supply system, comprise 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 the 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 the 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, control the PWM phase shift modulation of main circuit, described timer is realized the switching of positive negative pulse stuffing by the 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 invention:
The present invention adopts voltage-type full-bridge phase-shift soft switch main circuit, by digital PI control algolithm and timer cycle interruption, realizes that respectively the current/voltage of charge power supply is regulated and the positive negative pulse stuffing Polarity Control.
The single phase industrial frequence alternating current is after through the input rectifying filtration module, rectification is the smooth direct current electricity, again by the high-frequency inversion module, then by power voltage changing module, output rectification filter module, flow in the positive negative pulse stuffing generation module, DSP Digital Control module is controlled opening of this module I GBT pipe and turn-offs acquisition positive negative pulse stuffing charging current by the 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 detected 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, this four tunnels phase-shift PWM signal amplifies and goes 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 the overpower voltage changing module with the output rectification filter module converts again, flow into the positive negative pulse stuffing generation module, DSP Digital Control module is calculated the periodic quantity of timer cycle interruption by given sequential, and export according to the low and high level of given sequential procedure change assigned I/O mouth, thereby amplify opening and turn-offing of the IGBT switching tube remove to control the positive negative pulse stuffing generation module by the IGBT driver 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, give the error protection module voltage detected, electric current and temperature signal, as the phenomenon of overvoltage, under-voltage, overcurrent and excess temperature appears, the 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, with the protection main circuit.
Beneficial effect of the present invention:
(1) power output is large, and volume is little, lightweight; The present invention adopts high-power full-bridge converter to obtain powerful output, thereby makes power density large, and power output is large, realizes that the DSP digitlization efficient high-speed of electric car charger is controlled, and has realized that the charging system volume of high-power charging is little, lightweight.
(2) charge efficiency is high, and charging rate is fast; The present invention adopts reliable and stable PWM soft switch technique greatly to improve energy conversion efficiency, and charge efficiency is high; Adopt the intelligent charging technology to adjust in real time charging curve by the positive negative pulse stuffing combined charging, reach the 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 the full-bridge inverting system, by software programming, make system realize stable, reliable high-power output, in addition, the present invention 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.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the circuit theory diagrams of main circuit of the present invention;
Fig. 3 is the circuit theory diagrams of MOSFET high-frequency drive module of the present invention;
Fig. 4 is the circuit theory diagrams of IGBT driver module of the present invention;
Fig. 5 is the circuit theory diagrams of positive negative pulse stuffing generation module of the present invention;
Fig. 6 is the structural representation of DSP Digital Control module of the present invention;
Fig. 7 is the control flow chart of DSP Digital Control module of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are 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, comprise 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 the batteries of electric automobile load; Described industrial frequency AC input electrical network is the 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 the 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 electric current and the voltage of pwm signal phase shifting angle with 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 the industrial frequency AC input voltage, is voltage check device; The detection of primary over-current signal is Hall current sensor; Detecting the 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 temperature feeds back signal to DSP Digital Control module whether in normal range (NR).
Described DSP Digital Control module is changed by A/D, the electric current and the voltage signal that collect are delivered in digital signal processor, digital signal processor carries out closed-loop control by the PI algorithm to electric current and the voltage of main circuit, produce the phase-shift PWM waveform needed, through the turn-on and turn-off time of MOSFET high-frequency drive module controls power device switch mosfet pipe, to reach the purpose of controlling electric current and voltage.
Simultaneously, described DSP Digital Control module is by the timer cycle interruption, the timer periodicity counted 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 purpose that produces positive negative impulse current, realize Digital Control;
Described positive negative pulse stuffing generation module is regulated in real time to positive negative pulse stuffing, and the low and high level by the IGBT driver module to assigned I/O port output amplifies, 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 the high-frequency inversion module switching time by power ratio control device switch mosfet pipe;
Described IGBT driver module is opened and turn-offs driving positive negative pulse stuffing generation module by power ratio control device IGBT switching tube;
As shown in Figure 2, described main circuit adopts the 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 the 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 the 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, just can regulation output electric current and voltage by regulating this phase shifting angle.In the high-frequency converter loop, the stray inductance of the parasitic capacitance of master power switch pipe and isolating transformer, leakage inductance and resonant inductance etc. have formed a LC resonant tank, realize the change of current of no-voltage resonance in the device for power switching switching process, 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 MOSFET N1b～N4b to form, the driving pulse PWM1 that can send over the DSP digital control module～PWM4 realizes switching fast and strengthening driving power.The drive circuit secondary has adopted voltage-stabiliser tube D9b～D10b, D16b～D17b, D23b～D24b, D30b～D31b to carry out the 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 that process driving transformer T1b and T2b are converted to; 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 the 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 the MOSFET the Miller effect causes constantly.
As shown in Figure 4, described IGBT driver module mainly consists of the TLP250 opto-coupler chip, due to the output of the I/O mouth of DSP Digital Control module is the square-wave signal of 3.3V, can not meet the power requirement that drives IGBT, and can't realize the isolation of control circuit and main circuit, therefore the present invention adopts the TLP250 high-speed photoelectric coupler of Japanese Toshiba to form the IGBT drive circuit, and the I/O that can send over DSP Digital Control module drives signal to realize switching fast and strengthening 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 extremely is 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, the 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 present invention produces the timer cycle interruption by DSP digital control module 108, and realizes the output low and high level conversion of positive negative pulse stuffing control I/O port according to the sequential of procedure stipulation, after the amplification of IGBT driver module 110, realizes the control to positive negative pulse stuffing.Produce the stage in positive pulse, 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, open IGBT pipe V1 and turn-off IGBT pipe V2 thereby control, realize the charging of positive pulse electric current to cell load.Produce the stage in negative pulse, 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 the IGBT driver module, turn-off IGBT pipe V1 and open IGBT pipe V2 thereby control, cell load discharges in short-term by the electric discharge exclusion, instantaneous relase is discharging current significantly, forms the 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 the A/D conversion by software algorithm, 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 the timer cycle interruption triggers, in the cycle interruption service routine, the original comparison match value that increases counting is changed to and subtract the matching value that counting needs, in the underflow down trigger, the original comparison match value that subtracts counting is changed to the comparison match value that next cycle increases the counting needs in the underflow interrupt service routine, realize full-bridge phase-shift soft switch control.DSP Digital Control module 108 realizes the Timer Controlling sequential by initialize program simultaneously, realize the low and high level conversion of I/O port by the timer cycle interruption, thereby and amplify the positive negative pulse stuffing generation module is carried out to the switching of positive negative pulse stuffing through the IGBT driver module.Adopted the timer cycle interruption herein, when the timer cycle count during to set-point, carry out the operation of sequential procedure regulation, thereby control the 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: carry out the PI algorithm by charging current and voltage to output, 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 the phase-shift PWM signal according to input value e according to certain control algolithm, the 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 control system program realizes the low and high level conversion of I/O port by the timer cycle interruption simultaneously, thereby and amplify the positive negative pulse stuffing generation module is carried out to the switching of positive negative pulse stuffing through the 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 invention 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: automatically detect actual output current after power supply start 3s, 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, the 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, the I/O2 output low level.After the 1s pulse current finishes, enter the 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 the IGBT pipe, enters the negative pulse discharge stage, the 30ms that holds time, and this Phase I/O2 maintains high level, the I/O1 output low level.The negative pulse discharge stage finishes, and again enters the 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 is detected in real time, can think that when detecting when the actual pulse electric current is less than 5A battery is full of substantially, thereby enter the phase III floating charge, this Phase I/O1 maintains high level, the 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 present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
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 the 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 the 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, described pwm unit produces four road pulse-width signals, control the PWM phase shift modulation of main circuit, described timer is realized the switching of positive negative pulse stuffing by the timer cycle interruption.
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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| CN104917270A (en) * | 2015-06-11 | 2015-09-16 | 华南理工大学 | High-power digital variable-frequency positive-negative pulse quick-charging system based on energy feedback |
| CN104935063A (en) * | 2015-06-18 | 2015-09-23 | 电子科技大学 | Positive and negative pulse charging converter for storage battery |
| CN105186626A (en) * | 2015-10-09 | 2015-12-23 | 安徽师范大学 | DSP-based digital electric automobile charging method |
| CN105207286A (en) * | 2015-08-31 | 2015-12-30 | 胡久伦 | Rgc intelligent charger |
| CN106564393A (en) * | 2016-07-26 | 2017-04-19 | 华南理工大学 | High-power intelligent quick-charge electric source system for electric automobile and control method |
| CN106655872A (en) * | 2017-02-14 | 2017-05-10 | 华南理工大学 | Series transformer type LLC positive and negative pulse double-battery charging power system |
| CN107379995A (en) * | 2017-08-01 | 2017-11-24 | 华北电力大学 | Quick charging system of electric vehicle and method |
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| CN113937864A (en) * | 2021-11-04 | 2022-01-14 | 东莞光亚智能科技有限公司 | Serial-type positive and negative pulse formation capacity-sharing power supply system |
| WO2023060896A1 (en) * | 2021-10-14 | 2023-04-20 | 宁德时代新能源科技股份有限公司 | Charging device, charging control method, power management system and storage medium |
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| CN104917270A (en) * | 2015-06-11 | 2015-09-16 | 华南理工大学 | High-power digital variable-frequency positive-negative pulse quick-charging system based on energy feedback |
| CN104917270B (en) * | 2015-06-11 | 2017-06-06 | 华南理工大学 | High power digital frequency conversion positive negative pulse stuffing quick charging system based on energy feedback |
| CN104935063A (en) * | 2015-06-18 | 2015-09-23 | 电子科技大学 | Positive and negative pulse charging converter for storage battery |
| CN104935063B (en) * | 2015-06-18 | 2017-01-25 | 电子科技大学 | Positive and negative pulse charging converter for storage battery |
| CN105207286A (en) * | 2015-08-31 | 2015-12-30 | 胡久伦 | Rgc intelligent charger |
| CN105186626A (en) * | 2015-10-09 | 2015-12-23 | 安徽师范大学 | DSP-based digital electric automobile charging method |
| CN106564393B (en) * | 2016-07-26 | 2023-08-25 | 华南理工大学 | High-power intelligent rapid charging power supply system of electric automobile and control method |
| CN106564393A (en) * | 2016-07-26 | 2017-04-19 | 华南理工大学 | High-power intelligent quick-charge electric source system for electric automobile and control method |
| CN106655872A (en) * | 2017-02-14 | 2017-05-10 | 华南理工大学 | Series transformer type LLC positive and negative pulse double-battery charging power system |
| CN106655872B (en) * | 2017-02-14 | 2023-05-23 | 华南理工大学 | Series transformer type LLC positive and negative pulse double-battery charging power supply system |
| CN107379995A (en) * | 2017-08-01 | 2017-11-24 | 华北电力大学 | Quick charging system of electric vehicle and method |
| CN107415761A (en) * | 2017-09-02 | 2017-12-01 | 重庆佩特电气有限公司 | A kind of power model for Electric Transit quick charge stake |
| WO2023060896A1 (en) * | 2021-10-14 | 2023-04-20 | 宁德时代新能源科技股份有限公司 | Charging device, charging control method, power management system and storage medium |
| EP4195448A4 (en) * | 2021-10-14 | 2023-12-20 | Contemporary Amperex Technology Co., Limited | Charging device, charging control method, power management system and storage medium |
| CN113937864A (en) * | 2021-11-04 | 2022-01-14 | 东莞光亚智能科技有限公司 | Serial-type positive and negative pulse formation capacity-sharing power supply system |
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Application publication date: 20131204 |