CN107742917B - Three-phase PFC (Power factor correction) rectifying device with voltage boosting and reducing functions for high-power charging pile of electric automobile and control method - Google Patents

Three-phase PFC (Power factor correction) rectifying device with voltage boosting and reducing functions for high-power charging pile of electric automobile and control method Download PDF

Info

Publication number
CN107742917B
CN107742917B CN201710898931.1A CN201710898931A CN107742917B CN 107742917 B CN107742917 B CN 107742917B CN 201710898931 A CN201710898931 A CN 201710898931A CN 107742917 B CN107742917 B CN 107742917B
Authority
CN
China
Prior art keywords
module
voltage
diode
current
phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710898931.1A
Other languages
Chinese (zh)
Other versions
CN107742917A (en
Inventor
张立炎
徐铮
全书海
陈启宏
谢长君
石英
黄亮
邓坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan University of Technology WUT
Original Assignee
Wuhan University of Technology WUT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan University of Technology WUT filed Critical Wuhan University of Technology WUT
Priority to CN201710898931.1A priority Critical patent/CN107742917B/en
Publication of CN107742917A publication Critical patent/CN107742917A/en
Application granted granted Critical
Publication of CN107742917B publication Critical patent/CN107742917B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/022Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters characterised by the type of converter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30Constructional details of charging stations
    • B60L53/31Charging columns specially adapted for electric vehicles
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/027Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters with safety or indicating device
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage
    • H02J7/042Regulation of charging current or voltage the charge cycle being controlled in response to a measured parameter
    • H02J7/045Regulation of charging current or voltage the charge cycle being controlled in response to a measured parameter in response to voltage or current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage
    • H02J7/06Regulation of charging current or voltage using discharge tubes or semiconductor devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/2173Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a biphase or polyphase circuit arrangement
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage
    • H02J7/06Regulation of charging current or voltage using discharge tubes or semiconductor devices
    • H02J2007/10Regulation of charging current or voltage using discharge tubes or semiconductor devices using semiconductor devices only
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20Charging or discharging characterised by the power electronics converter
    • H02M1/0012
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations

Abstract

The invention relates to a three-phase PFC (power factor correction) rectifying device of an electric automobile high-power charging pile with a voltage boosting and reducing function and a control method, wherein the device comprises a rectifying module, a voltage boosting and reducing module, a sampling module, a hardware voltage and current detection module, a comparator module, a DSP (digital signal processor) module and a switching tube driving module with protection; wherein: three-phase power grid voltage passes through pin output UA、UB、UCAnd the rectifying module and the voltage boosting and reducing module form a three-phase eight-switch Buck-Boost rectifier. The three-phase eight-switch Buck-Boost rectifier is used as a main topology of the circuit, double closed-loop control is adopted, so that the input current of the three-phase eight-switch Buck-Boost rectifier is close to a sine wave and is in the same phase with the input voltage, the power factor is approximate to 1, the structure is simple, the size is small, the power factor of a network side is high, the charging efficiency is high, the direct current side Buck-Boost type topology can flexibly adjust the output voltage according to the type of an electric automobile at the output end, different requirements on the output voltage are met, and different types of electric automobiles can be rapidly charged.

Description

Three-phase PFC (Power factor correction) rectifying device with voltage boosting and reducing functions for high-power charging pile of electric automobile and control method
Technical Field
The invention relates to the technical field of electric vehicle battery charging, in particular to a three-phase PFC (power factor correction) rectifying device with a voltage boosting and reducing function for a high-power charging pile of an electric vehicle and a control method.
Technical Field
Along with the development of human beings, people have to pay attention to the increasingly prominent energy and environmental problems, and electric automobiles take electric energy as power, so that the problem of pollution caused by exhaust emission of fuel automobiles can be solved, and the consumption of fossil energy can be reduced. Therefore, the method is gradually favored, the number of electric automobiles in China only accounts for 0.2 percent of the total number of automobiles, the development prospect is great, and the convenient and quick charging facility can greatly promote the popularization and the promotion of the electric automobiles.
Charging facilities of the electric automobile at present can be roughly classified into four types according to application occasions: (1) the charging method comprises the following steps of vehicle-mounted emergency charging (2), family or public place charging (3), charging pile charging (4) and charging station charging. The vehicle-mounted emergency charging is usually a contact charger with simple structure and convenient control, and can also be an induction charger. The vehicle-mounted charger is completely designed according to the type of the vehicle-mounted charger, and is high in pertinence. The other three types of charging devices can be collectively called off-board charging, namely ground charging, and the off-board charging device is equivalent to a car gas station and can charge any electric car needing charging. The charging facilities can be divided into ac charging and dc charging again according to the charging voltage. Compared with alternating current charging, direct current charging has high efficiency, and the direct current charging also becomes the first choice of public charging facilities in the future. However, the charging method has higher requirements on equipment and safety, and is more controversial at present. In comparison, standard customization of dc charging is relatively complex. The distance standardization is more problematic in dc charging, which involves the problem of high-voltage charging.
The high-power direct-current charging pile has a great development prospect because of high charging efficiency and short charging time. Although the development of a rectifier and a control method of a high-power dc charging post has been advanced with the development of power electronics technology, there are still many problems to be solved. For example, the conventional high-power dc charging pile has the following defects:
(1) the volume is too big, and traditional direct current fills electric pile and passes through transformer or full-bridge DC/DC circuit adjustment output voltage, and the structure is heavy, and is bulky, with high costs.
(2) Unable nimble adjustment output voltage, electric car's charging voltage generally is 300V ~ 400V, and electric bus's charging voltage generally is more than 600V, and traditional direct current fills electric pile can't carry out the service of charging to the electric automobile of different grade type simultaneously, has reduced direct current and has filled electric pile's utilization ratio, is unfavorable for electric automobile's popularization, has reduced direct current and has filled electric pile's economic nature.
(3) Charging efficiency is low, and traditional direct current fills electric pile input harmonic current very abundant, and net side power factor is low, and is polluted greatly to the electric wire netting, can not satisfy electromagnetic compatibility for charging efficiency greatly reduced.
Disclosure of Invention
The invention mainly aims to provide a three-phase PFC (power factor correction) rectifying device and a control method of a high-power charging pile of an electric automobile with a voltage boosting and reducing function, aiming at the defects of overlarge volume, incapability of flexibly adjusting output voltage and low charging efficiency in the prior art, so as to overcome the defects in the prior art. The three-phase PFC rectification system of the Boost-Buck integrated high-power charging pile of the electric automobile adopts a three-phase eight-switch Buck-Boost rectifier as a main topology of a circuit, adopts double closed-loop control, enables the input current of the three-phase eight-switch Buck-Boost rectifier to be close to a sine wave and to be in phase with the input voltage, has a power factor of approximately 1, is simple in structure, small in size, high in power factor of a network side and high in charging efficiency, can flexibly adjust the output voltage according to the type of the electric automobile at the output end, meets different requirements on the output voltage, and can quickly charge different types of electric automobiles.
In order to achieve the purpose, the invention provides a three-phase PFC (power factor correction) rectifying device of a high-power charging pile of an electric automobile with a voltage boosting and reducing function, which comprises a rectifying module, a voltage boosting and reducing module, a sampling module, a hardware voltage and current detection module, a comparator module, a DSP (digital signal processor) module and a switch tube driving module with protection; wherein: three-phase power grid voltage passes through pin output UA、UB、UCConnected with a rectifying module, the rectifying module and the lifting deviceThe pressing module forms a three-phase eight-switch Buck-Boost rectifier, and the circuit structure is as follows:
first inductance Lf1One end of the first inductor is connected with a first input port a of the three-phase rectifier and a second inductor Lf2One end of the first inductor is connected with a second input port b of the three-phase rectifier and a third inductor Lf3One end of the three-phase rectifier is connected with a third input port c of the three-phase rectifier;
a first capacitor Cf1And a first inductor Lf1A low pass filter forming a first input port a, and a second capacitor Cf2And a second inductor Lf2A low pass filter forming a second input port b, and a third capacitor Cf3And a third inductor Lf3A low-pass filter constituting the third input port c; first inductance Lf1The other end of the first inductor L is connected with the anode of the first diode and the cathode of the fourth diode, and the second inductor Lf2The other end of the first inductor is connected with the anode of the second diode and the cathode of the fifth diode, and a third inductor Lf3The other end of the first diode is connected with the anode of the third diode and the cathode of the sixth diode;
first inductance Lf1And a switching tube SapSource electrode and switch tube SanIs connected to the drain of the second inductor Lf2And a switching tube SbpSource electrode and switch tube SbnIs connected to the drain of the third inductor Lf3And a switching tube ScpSource electrode and switch tube ScnThe drain electrodes of the two electrodes are connected; switch tube SpThe drain electrode of the first diode is connected with the cathodes of the second diode and the third diode, and the switching tube SpThe source electrode of the first diode is connected with the cathodes of the seventh diode, the eighth diode and the ninth diode; switch tube SnThe source electrode of the first diode is connected with the anodes of the fourth diode, the fifth diode and the sixth diode, and the switching tube SnThe drain electrode of the first diode is connected with the anodes of the twelfth diode, the eleventh diode and the twelfth diode;
one end of the inductor L1, the cathodes of the seventh diode, the eighth diode, the ninth diode and the thirteenth diode, and the switching tube SpIs connected with the source electrode of the switching tube SnThe drain electrode of the third diode, the anode of the eleventh diode and the anode of the twelfth diode, and a capacitor C1Connecting; the capacitor C1 is connected with the output end; the capacitor C1, the discharge resistor R1 and the switch K1 form a discharge loop.
The three-phase PFC rectifying device is adopted to charge the high-power direct-current charging pile of the electric automobile by constant current and constant voltage, and the charging is carried out by constant current in the first stage; and when the voltage reaches a preset value, the second stage is carried out to carry out constant voltage charging. When the output end is over-voltage, under-voltage, over-current and over-temperature, the DSP processor module immediately sets the duty ratio to zero, the switch tube driving module with protection immediately outputs a negative pressure driving signal to turn off the eight switch tubes, the three-phase Buck-Boost rectifier stops working, the switch K1 is controlled to be closed, and the capacitor C1 is discharged through a discharge loop formed by C1 and R1.
In addition, the invention provides a control method of the three-phase PFC rectifying device of the electric vehicle charging pile with the voltage boosting and reducing function, which comprises the following specific control steps:
s1, the DSP processor module judges whether the pre-charging is needed, if so, the step S2 is carried out, and if not, the step S3 is directly carried out;
s2, the DSP processor module outputs eight paths of PWM waves to enable Sp、SnConduction, Sap、San、Sbp、Sbn、Scp、ScnDisconnecting, carrying out uncontrolled rectification through the rectification module, pre-charging the output capacitor C1, and entering step S4 when the set value is reached;
s3, the sampling module inputs the voltage and the current collected by the alternating current side into the DSP processor module;
s4, the DSP processor module carries out operation of a three-phase static coordinate system/a two-phase rotating coordinate system on the alternating-current side voltage value and the alternating-current side current value acquired by the alternating-current side, and obtains a power grid voltage angular frequency omega (k) and a phase theta (k) through a digital phase-locked loop function;
s5, performing a constant current charging mode;
s5.1, in the constant-current control mode, the comparator module outputs current IoutAnd a reference current IrefCalculating to obtain an output value E2, and inputting the output value E2 into the DSP processor module through an input end I-14;
s5.2, calculating to obtain duty ratio through space vector pulse width modulation, and generating eight paths of PWM waves;
s5.3, inputting the eight paths of PWM waves into a switching tube driving module with protection, generating eight paths of driving signals, acting on the on-off of a switching tube of a three-phase eight-switch Buck-Boost rectifier, and charging in a constant current mode;
s5.4, inputting the voltage and the current of the output end into a hardware voltage and current detection module, judging the working mode at the moment, inputting the judgment result into a comparator module, and when the voltage and the current of the output end are detected to reach a preset value, switching the system into a second stage to carry out constant voltage charging;
s6, performing a constant voltage charging mode;
s6.1, under the constant voltage control mode, the comparator module outputs a voltage UoutAnd a reference voltage UrefCalculating to obtain an output value E1, and inputting the output value E1 into the DSP processor module through an input end I-15;
s6.2, calculating to obtain duty ratio through space vector pulse width modulation, and generating eight paths of PWM waves;
s6.3, inputting the eight paths of PWM waves into a switching tube driving module with protection, generating eight paths of driving signals, acting on the on-off of a switching tube of a three-phase eight-switch Buck-Boost rectifier, and charging in a constant voltage mode;
s6.4, the DSP processor module judges whether the work is finished, and when the device needs to work continuously, the step S5.3 is carried out; when the work is finished, the next step is carried out;
s6.5, the DSP processor module sets the duty ratio to zero, the switching tube driving module with protection outputs a negative pressure driving signal instantly to turn off eight switching tubes, the three-phase Buck-Boost rectifier stops working, meanwhile, the switch K1 is controlled to be closed, and the capacitor C1 is discharged through a discharging loop formed by C1 and R1.
Compared with the prior art, the invention has the following advantages:
1. the traditional three-phase Buck-Boost rectifier is improved, and eight switching tubes are controlled by the technology of a switching power supply, so that the power loss of the switching tubes is effectively reduced, and the power factor is high;
2. the semiconductor diode with low forward conduction voltage drop and low reverse leakage current is adopted, so that the loss of the switching tube is reduced;
3. the charging device has the advantages of simple structure, small volume, convenience in use and operation, high charging efficiency, small harmonic interference, high working stability and reliability, strong practicability and convenience in popularization and use;
4. the output end adopts the Buck-Boost topological structure to realize the flexible boosting and voltage-reducing output of the output direct-current voltage, the large-scale automobile charging voltage is met, the electric automobiles of different types can be rapidly charged, the utilization rate of the charging pile is improved, and the economical efficiency of the charging pile is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a three-phase PFC rectifier device of a high-power charging pile of an electric vehicle with a voltage step-up and step-down function according to the present invention.
Fig. 2 is a flowchart of a control method of the three-phase PFC rectifier device according to the present invention.
In the figure, 100-a rectifying module, 110-a buck-boost module, 120-a sampling module, 130-a hardware voltage and current detection module, 140-a comparator module, 150-a DSP processor module and 160-a switch tube driving module with protection.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical scheme of the invention is specifically explained in the following with reference to the attached drawings:
as shown in fig. 1, the three-phase PFC rectification system of an electric vehicle high-power charging pile with a voltage step-up and step-down function according to an embodiment of the present invention includes a rectification module 100, a voltage step-up and step-down module 110, a sampling module 120, a hardware voltage and current detection module 130, a comparator module 140, a DSP processor module 150, and a switching tube driving module 160 with protection.
In the embodiment, the output power of the device can reach 66KW, the three-phase alternating current voltage is 380V, the frequency is 50HZ, constant-current constant-voltage charging is adopted, and constant current charging is adopted in the first stage; when the voltage reaches a preset value, the second stage is carried out to carry out constant voltage charging, and the current is gradually reduced; when the charging current reaches zero, the battery is fully charged.
In this embodiment, the three-phase grid voltage is output through the pin UA、UB、UCThe three-phase Buck-Boost rectifier is connected with the three-phase Buck-Boost rectifier, and the circuit structure of the three-phase Buck-Boost rectifier is as follows:
first inductance Lf1One end of the first inductor is connected with a first input port a of the three-phase rectifier and a second inductor Lf2One end of the first inductor is connected with a second input port b of the three-phase rectifier and a third inductor Lf3One end of the three-phase rectifier is connected with a third input port c of the three-phase rectifier;
a first capacitor Cf1And a first inductor Lf1A low pass filter forming a first input port a, and a second capacitor Cf2And a second inductor Lf2A low pass filter forming a second input port b, and a third capacitor Cf3And a third inductor Lf3A low-pass filter constituting the third input port c;
first inductance Lf1The other end of the first inductor L is connected with the anode of the first diode and the cathode of the fourth diode, and the second inductor Lf2The other end of the first inductor is connected with the anode of the second diode and the cathode of the fifth diode, and a third inductor Lf3The other end of the first diode is connected with the anode of the third diode and the cathode of the sixth diode; first inductance Lf1And a switching tube SapSource electrode and switch tube SanIs connected to the drain of the second inductor Lf2And a switching tube SbpSource electrode and switch tube SbnIs connected to the drain of the third inductor Lf3And a switching tube ScpSource electrode and switch tube ScnThe drain electrodes of the two electrodes are connected;
switch tube SpThe drain electrode of the first diode is connected with the cathodes of the second diode and the third diode, and the switching tube SpAnd the source of the second diode is connected with the cathodes of the seventh diode, the eighth diode and the ninth diode. Switch tube SnThe source electrode of the first diode is connected with the anodes of the fourth diode, the fifth diode and the sixth diode, and the switching tube SnDrain electrode of (1), the twelfth pole tube and the fourth pole tubeAnodes of the eleventh diode and the twelfth diode are connected;
one end of the inductor L1, the cathodes of the seventh diode, the eighth diode, the ninth diode and the thirteenth diode, and the switching tube SpIs connected with the source electrode of the switching tube SnThe anode of the twelfth diode, the anode of the eleventh diode and the anode of the twelfth diode are connected with a capacitor C1; the capacitor C1 is connected with the output end, and the capacitor C1, the discharge resistor R1 and the switch K1 form a discharge loop.
In the present embodiment, the first inductor Lf1The other end of the first inductor L is also respectively connected with a first voltage detector, a first current detector and a second inductor Lf2The other end of the first inductor is also respectively connected with a second voltage detector, a second current detector and a third inductor Lf3The other end of the first current detector is connected with a first voltage detector and a first current detector respectively; the voltage values U respectively detected by the first voltage detector, the second voltage detector and the third voltage detectorA、UB、UCAnd the first, second and third current detectors detect the current value IA、IB、ICRespectively input to the sampling module through input terminals I-1, I-2, I-3, I-4, I-5 and I-6 of the sampling module 120, and an output sampling value U of the sampling moduleA(k)、UB(k)、UC(k)、IA(k)、IB(k)、IC(k) The output end current, the output end voltage, the reference current and the reference voltage are respectively input into a comparator module 120 through input ends I-20, I-21, I-22 and I-23 of the comparator module, the output end current and the output end voltage are respectively input into a hardware voltage current detection module 130 through input ends I-18 and I-19, the voltage and current detection result J1 is input into the DSP processor module 150 through the input end I-16, when the conditions of overvoltage, undervoltage and overcurrent occur, the DSP processor module immediately sets the duty ratio to zero, and the switch tube driver with protection drivesThe dynamic module outputs a negative-pressure driving signal immediately, the eight switching tubes are turned off, the three-phase Buck-Boost rectifier stops working, the switch K1 is controlled to be closed, and the capacitor C1 is discharged through a discharging loop formed by C1 and R1.
In the embodiment, temperature detection is input into the DSP processor module 150 through an input end I-17, when the temperature is detected to be too high, the DSP processor module controls the cooling fan to start working through an output end O-7, meanwhile, the DSP processor module immediately sets the duty ratio to zero, the switch tube driving module with protection immediately outputs a negative pressure driving signal, eight switch tubes are turned off, the three-phase Buck-Boost rectifier stops working, meanwhile, the switch K1 is controlled to be closed, and the capacitor C1 is discharged through a discharging loop formed by C1 and R1.
In the present embodiment, the hardware voltage/current detection module 130 inputs a signal to the comparator module 140 through the input terminal I-24, and switches the operation state of the comparator module 140 to be the constant voltage control mode or the constant current control mode. In the constant voltage control mode, the comparator module 120 outputs the voltage UoutAnd a reference voltage UrefThe operation results in output value E1, which is input to DSP processor module 150 via input I-15. In the constant current control mode, the comparator module 120 outputs a current IoutAnd a reference current IrefThe operation results in output value E2, which is input to DSP processor module 150 via input I-14. When the voltage level of the output capacitor C1 reaches a set value and no overvoltage, undervoltage, overcurrent or overtemperature exists in the DSP processor module, the duty ratio of the PWM modulation wave is calculated through a space vector pulse width modulation algorithm according to data input into the DSP processor module, and eight-path gating pulse G is generatedpwm1、Gpwm2、Gpwm3、Gpwm4、Gpwm5、Gpwm6、Gpwm7、Gpwm8The signals are input into a switch tube module 160 with protection through output ports O-11, O-12, O-13, O-14, O-15, O-16, O-17 and O-18 to generate eight paths of driving signals which act on a switch tube S through output ports G1, G2, G3, G4, G5, G6, G7 and G8 respectivelyP、Sn、Sap、San、Sbp、Sbn、Scp、ScnThe on-off time of the rectifier is controlled, and the purpose of rectifying and voltage regulating is achieved.
The electric automobile that takes the buck-boost function fills electric pile three-phase PFC fairing through the aforesaid concrete control step includes:
step S100, start;
step S110, initializing each module of the three-phase PFC rectifying system;
step S120, detecting the voltage value of the charged electric automobile by an output end voltage detection device;
step S130, the DSP processor module 150 judges whether the pre-charging is needed, if so, the step S140 is carried out, and if not, the step S150 is directly carried out;
in step S140, the DSP processor module 150 outputs eight PWM waves to enable Sp、SnConduction, Sap、San、Sbp、Sbn、Scp、ScnDisconnecting, carrying out uncontrolled rectification through the rectification module 100, pre-charging the output capacitor C1, and connecting to the step S150 when a set value is reached;
step S150, the sampling module 120 inputs the voltage and the current collected at the AC side into the DSP processor module 150;
step S160, the DSP processor module 150 performs an operation of the three-phase stationary coordinate system/two-phase rotating coordinate system on the ac side voltage value and current value collected at the ac side, and obtains the grid voltage angular frequency ω (k) and the phase θ (k) through the digital phase-locked loop function;
step S170, performing a constant current charging mode;
step S180, in the constant current control mode, the comparator module 120 outputs the current IoutAnd a reference current IrefCalculating to obtain an output value E2, and inputting the output value E2 into the DSP processor module 150 through an input end I-14;
step S190, calculating a duty ratio through space vector pulse width modulation, and generating eight paths of PWM waves;
step S200, inputting eight paths of PWM waves into a switching tube driving module 160 with protection, generating eight paths of driving signals, acting on the on-off of a switching tube of a three-phase eight-switch Buck-Boost rectifier, and charging in a constant current mode;
step S210, inputting the voltage and current of the output end to the hardware voltage and current detection module 130, judging the working mode at the moment, inputting the judgment result to the comparator module 140, and when the voltage of the output end is detected to reach a preset value, the system shifts to the second stage for constant voltage charging;
step S220, a constant voltage charging mode is carried out;
step S230, in the constant voltage control mode, the comparator module 120 outputs the voltage UoutAnd a reference voltage UrefCalculating to obtain an output value E1, and inputting the output value E1 into the DSP processor module 150 through an input end I-15;
step S240, calculating a duty ratio through space vector pulse width modulation, and generating eight paths of PWM waves;
step S250, inputting eight paths of PWM waves into a switching tube driving module 160 with protection, generating eight paths of driving signals, acting on the on-off of a switching tube of a three-phase eight-switch Buck-Boost rectifier, and charging in a constant voltage mode;
step S260, the DSP processor module 150 judges whether the work is finished, and when the device needs to work continuously, the step S220 is executed;
step S270, the DSP processor module 150 sets the duty ratio to zero, the switch tube driving module with protection outputs a negative pressure driving signal instantly, eight switch tubes are turned off, the three-phase Buck-Boost rectifier stops working, meanwhile, the switch K1 is controlled to be closed, and the capacitor C1 is discharged through a discharging loop formed by C1 and R1;
step S280 ends.
The technical solution of the present invention will be described in detail with reference to the following examples.
Taking charging for the Beiqi EV electric vehicle as an example, the following operations are carried out according to the control steps:
firstly, initializing each module of a high-power direct-current charging pile program;
further, detecting that the load voltage needing to be output is 320V, setting the load voltage as reference voltage, inputting the reference voltage into the DSP processor, outputting the power to be 16KW, obtaining reference output current to be 50A according to the output voltage and the output power, and inputting the reference output current into the DSP processor;
further, the DSP judges that the system is charged without pre-charging;
further, the voltage and the current on the alternating current side are input into a DSP (digital signal processor) through a sampling module, the direct current voltage and the current on the direct current side of the rectifier are input into the DSP, the operation of a three-phase static coordinate system/a two-phase rotating coordinate system is carried out, and the grid voltage angular frequency omega (k) and the phase theta (k) are obtained through a digital phase-locked loop function;
further, the voltage and the current of an output end are input into a hardware voltage and current detection module, the system adopts constant current and constant voltage charging, the constant current 50A is used for charging in the first stage, meanwhile, the voltage, the current of the output end, the reference voltage and the reference current are input into a comparator module, the comparison result is input into a DSP processor through the calculation of the comparator module, the voltage grade of an output capacitor C1 is detected to reach a set value, and no overvoltage, undervoltage, overcurrent and overtemperature is generated in the DSP processor module;
further, when the voltage at the output end is detected to reach a preset value of 320V, the constant voltage charging is carried out in the second stage, the current is gradually reduced, the voltage at the output end, the current at the output end, the reference voltage and the reference current are input into a comparator module, the comparison result is input into a DSP processor through calculation of the comparator module, when the voltage level of the output capacitor C1 is detected to reach a set value and no overvoltage, undervoltage, overcurrent or overtemperature is detected in the DSP processor module, the duty ratio is calculated through a space vector pulse width modulation algorithm through processing calculation according to data input into the DSP processor module, eight paths of PWM waves are generated and input into a switching tube driving module with protection, eight paths of driving signals are generated, the on-off of a switching tube of the three-phase eight-switch Buck-Boost rectifier is acted, and the constant voltage mode charging is carried out;
further, the DSP processor module judges whether the work is finished, when the work needs to be continued, the steps are repeated, when the charging is finished, the DSP processor module sets the duty ratio to zero, the switching tube driving module with protection outputs a negative pressure driving signal instantly, the eight switching tubes are turned off, the three-phase Buck-Boost rectifier stops working, meanwhile, the switch K1 is controlled to be closed, and the capacitor C1 is discharged through a discharging loop formed by C1 and R1;
and finishing charging.

Claims (7)

1. The utility model provides a take high-power three-phase PFC fairing of filling electric pile that fills of electric automobile of buck-boost function which characterized in that, includes rectifier module, buck-boost module, sampling module, hardware voltage current detection module, comparator module, DSP processor module, takes the switch tube drive module of protection, and their connection is: the left end of the rectification module is connected with a three-phase power grid, and the right end of the rectification module is connected with the buck-boost module; the left end of the buck-boost module is connected with the rectifying module, and the right end of the buck-boost module is connected with the load; the sampling module collects current and voltage in the rectifying module and transmits the current and voltage to the DSP processing module; the hardware voltage and current detection module collects the current and voltage in the buck-boost module and transmits the current and voltage to the comparator module and the DSP processor module; the comparator module compares the collected current voltage in the voltage boosting and reducing module with a given current voltage value and transmits a comparison result to the DSP module; wherein: three-phase power grid voltage passes through pin output UA、UB、UCThe three-phase eight-switch Buck-Boost rectifier is connected with the rectifying module, the rectifying module and the Buck-Boost module form a three-phase eight-switch Buck-Boost rectifier, and the circuit structure of the rectifying module is as follows:
first inductance Lf1The left end of the three-phase rectifier is connected with a first input port a of the three-phase rectifier and a second inductor Lf2The left end of the three-phase rectifier is connected with a second input port b of the three-phase rectifier and a third inductor Lf3The left end of the three-phase rectifier is connected with a third input port c of the three-phase rectifier;
a first capacitor Cf1And a first inductor Lf1A low pass filter forming a first input port a, and a second capacitor Cf2And a second inductor Lf2A low-pass filter forming a second input port b, aThree capacitors Cf3And a third inductor Lf3A low-pass filter constituting the third input port c; first inductance Lf1The other end of the first inductor L is connected with the anode of the first diode and the cathode of the fourth diode, and the second inductor Lf2The other end of the first inductor is connected with the anode of the second diode and the cathode of the fifth diode, and a third inductor Lf3The other end of the first diode is connected with the anode of the third diode and the cathode of the sixth diode;
first inductance Lf1Is connected with the switch tube SapSource electrode and switch tube SanIs connected to the drain of the second inductor Lf2Is connected with the switch tube SbpSource electrode and switch tube SbnIs connected to the drain of the third inductor Lf3Is connected with the switch tube ScpSource electrode and switch tube ScnThe drain electrodes of the two electrodes are connected; switch tube SpThe drain electrode of the first diode is connected with the cathodes of the second diode and the third diode, and the switching tube SpThe source electrode of the first diode is connected with the cathodes of the seventh diode, the eighth diode and the ninth diode; switch tube SnThe source electrode of the first diode is connected with the anodes of the fourth diode, the fifth diode and the sixth diode, and the switching tube SnThe drain electrode of the first diode is connected with the anodes of the twelfth diode, the eleventh diode and the twelfth diode; switch tube SapIs connected with the anode of a seventh diode, a switching tube SbpIs connected with the anode of the eighth diode, and a switching tube ScpIs connected with the anode of the ninth diode; switch tube SanIs connected with the cathode of the twelfth polar tube, and a switching tube SbnIs connected with the cathode of the eleventh diode, and a switching tube ScnThe source of the first diode is connected with the cathode of the twelfth diode;
the upper end of the inductor L1, the cathodes of the seventh diode, the eighth diode, the ninth diode and the thirteenth diode, and the switching tube SpIs connected with the source electrode of the switching tube SnThe anode of the twelfth diode, the anode of the eleventh diode and the anode of the twelfth diode are connected with a capacitor C1; the capacitor C1 is connected with the output end; the anode of the thirteenth diode and the positive end of the capacitor C1 are connected with the output end; the resistor R1 is connected in series with the switch K1 and then connected in parallel with the capacitor C1Forming a discharge circuit.
2. The three-phase PFC rectifying device of the high-power charging pile of the electric automobile with the voltage boosting and reducing function as claimed in claim 1, is characterized in that: the switch tube SP、Sn、Sap、San、Sbp、Sbn、Scp、ScnMOS tube or IGBT tube; the first to thirteenth diodes are semiconductor diodes having a low forward conduction voltage drop and a low reverse leakage current.
3. The three-phase PFC rectifying device of the high-power charging pile of the electric automobile with the voltage boosting and reducing function as claimed in claim 1, is characterized in that: first inductance Lf1The other end of the first inductor L is also respectively connected with a first voltage detector, a first current detector and a second inductor Lf2The other end of the first inductor is also respectively connected with a second voltage detector, a second current detector and a third inductor Lf3The other end of the first current detector is connected with a first voltage detector and a first current detector respectively;
the voltage values U respectively detected by the first voltage detector, the second voltage detector and the third voltage detectorA、UB、UCAnd the first, second and third current detectors detect the current value IA、IB、ICRespectively connected with input ends I-1, I-2, I-3, I-4, I-5 and I-6 of sampling module, and the output sampling value U of sampling moduleA(k)、UB(k)、UC(k)、IA(k)、IB(k)、IC(k) Are respectively connected with the input ends I-7, I-8, I-9, I-10, I-11 and I-12 of the DSP processor module 150 through the output ends O-1, O-2, O-3, O-4, O-5 and O-6.
4. The three-phase PFC rectifying device of the high-power charging pile of the electric automobile with the voltage boosting and reducing function as claimed in claim 1, is characterized in that: the temperature detection module is connected with the input end I-17 of the DSP processor module, and the DSP processor module is connected with the cooling fan through the output port O-7; the actual output current and the actual output voltage are respectively connected with the input ends I-18 and I-19 of the hardware voltage and current detection module and are also respectively connected with the input ends I-20 and I-21 of the comparator module, and the reference voltage and the reference current are respectively connected with the ports I-22 and I-23 of the comparator module; the output result of the hardware voltage and current detection module is respectively connected with the input end I-16 of the DSP processor module and the input end I-24 of the comparator module through the output end O-10 and the output end O-11, and the output result of the comparator module is connected with the input ends I-14 and I-15 of the DSP processor module through the output ends O-8 and O-9.
5. The three-phase PFC rectifying device of the high-power charging pile of the electric automobile with the voltage boosting and reducing function as claimed in claim 1, is characterized in that: DSP processor module outputs eight paths of PWM waves Gpwm1、Gpwm2、Gpwm3、Gpwm4、Gpwm5、Gpwm6、Gpwm7、Gpwm8The output signals are respectively output to the input ends I-25, I-26, I-27, I-28, I-29, I-30, I-31 and I-32 of the switching tube driving module 160 with protection through the output ends O-12, O-13, O-14, O-15, O-16, O-17, O-18 and O-19; the DSP processor module is connected with a switch K1 through an output end O-19; the driving signals generated by the switch tube driving module with protection act on the switch tube S through output terminals G1, G2, G3, G4, G5, G6, G7 and G8 respectivelyp、Sn、Sap、San、Sbp、Sbn、Scp、Scn
6. The three-phase PFC rectifying device of the high-power charging pile of the electric automobile with the voltage boosting and reducing function as claimed in claim 1, is characterized in that: DSP processor module 150 controls switch tube Sp、Sn、Sap、San、Sbp、Sbn、Scp、ScnK1, and turning off the switch tube S when detecting overvoltage, overcurrent and overtemperature of the systemp、Sn、Sap、San、Sbp、Sbn、Scp、ScnThe three-phase eight-switch Buck-Boost rectifier stops working, and simultaneously controls the switch K1 to be closed, and the three-phase eight-switch Buck-Boost rectifier is formed by C1 and R1The discharge loop discharges the capacitor C1; and the DSP processor module controls the starting and stopping of the cooling fan according to the temperature detection result.
7. The method of controlling a three-phase PFC rectifier device of claim 1, comprising:
s1, the DSP processor module judges whether the pre-charging is needed, if so, the step S2 is carried out, and if not, the step S3 is directly carried out;
s2, the DSP processor module outputs eight paths of PWM waves to enable Sp、SnConduction, Sap、San、Sbp、Sbn、Scp、ScnDisconnecting, carrying out uncontrolled rectification through the rectification module, pre-charging the output capacitor C1, and entering step S4 when the set value is reached;
s3, the sampling module inputs the voltage and the current collected by the alternating current side into the DSP processor module;
s4, the DSP processor module carries out operation of a three-phase static coordinate system/a two-phase rotating coordinate system on the alternating-current side voltage value and the alternating-current side current value acquired by the alternating-current side, and obtains a power grid voltage angular frequency omega (k) and a phase theta (k) through a digital phase-locked loop function;
s5, performing a constant current charging mode;
s5.1, in the constant-current control mode, the comparator module outputs current IoutAnd a reference current IrefCalculating to obtain an output value E2, and inputting the output value E2 into the DSP processor module through an input end I-14;
s5.2, calculating to obtain duty ratio through space vector pulse width modulation, and generating eight paths of PWM waves;
s5.3, inputting the eight paths of PWM waves into a switching tube driving module with protection, generating eight paths of driving signals, acting on the on-off of a switching tube of a three-phase eight-switch Buck-Boost rectifier, and charging in a constant current mode;
s5.4, inputting the voltage and the current of the output end into a hardware voltage and current detection module, judging the working mode at the moment, inputting the judgment result into a comparator module, and when the voltage and the current of the output end are detected to reach a preset value, switching the system into a second stage to carry out constant voltage charging;
s6, performing a constant voltage charging mode;
s6.1, under the constant voltage control mode, the comparator module outputs a voltage UoutAnd a reference voltage UrefCalculating to obtain an output value E1, and inputting the output value E1 into the DSP processor module through an input end I-15;
s6.2, calculating to obtain duty ratio through space vector pulse width modulation, and generating eight paths of PWM waves;
s6.3, inputting the eight paths of PWM waves into a switching tube driving module with protection, generating eight paths of driving signals, acting on the on-off of a switching tube of a three-phase eight-switch Buck-Boost rectifier, and charging in a constant voltage mode;
s6.4, the DSP processor module judges whether the work is finished, and when the device needs to work continuously, the step S5.3 is carried out; when the work is finished, the next step is carried out;
s6.5, the DSP processor module sets the duty ratio to zero, the switching tube driving module with protection outputs a negative pressure driving signal instantly to turn off eight switching tubes, the three-phase Buck-Boost rectifier stops working, meanwhile, the switch K1 is controlled to be closed, and the capacitor C1 is discharged through a discharging loop formed by C1 and R1.
CN201710898931.1A 2017-09-28 2017-09-28 Three-phase PFC (Power factor correction) rectifying device with voltage boosting and reducing functions for high-power charging pile of electric automobile and control method Active CN107742917B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710898931.1A CN107742917B (en) 2017-09-28 2017-09-28 Three-phase PFC (Power factor correction) rectifying device with voltage boosting and reducing functions for high-power charging pile of electric automobile and control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710898931.1A CN107742917B (en) 2017-09-28 2017-09-28 Three-phase PFC (Power factor correction) rectifying device with voltage boosting and reducing functions for high-power charging pile of electric automobile and control method

Publications (2)

Publication Number Publication Date
CN107742917A CN107742917A (en) 2018-02-27
CN107742917B true CN107742917B (en) 2020-04-03

Family

ID=61236227

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710898931.1A Active CN107742917B (en) 2017-09-28 2017-09-28 Three-phase PFC (Power factor correction) rectifying device with voltage boosting and reducing functions for high-power charging pile of electric automobile and control method

Country Status (1)

Country Link
CN (1) CN107742917B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3079684B1 (en) * 2018-03-27 2020-03-13 Renault S.A.S DEVICE AND METHOD FOR CHARGING AN ELECTRIC BATTERY
DE102019102550A1 (en) * 2019-02-01 2020-08-06 Infineon Technologies Austria Ag PERFORMANCE CONVERTER AND PERFORMANCE CONVERSION PROCESS
CN110203095A (en) * 2019-05-10 2019-09-06 湖南科技大学 The matched quick charge stake of the driving electric locomotive of super capacitor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1599222A (en) * 2003-09-19 2005-03-23 株式会社三社电机制作所 Electroplate supply unit
CN102916440B (en) * 2012-09-20 2015-01-07 中国电力科学研究院 Battery energy storage system based power conversion system and control method thereof
CN105871244A (en) * 2016-05-06 2016-08-17 钛白金科技(深圳)有限公司 Single-phase AC-DC/DC-AC dual-purpose circuit and three-phase AC-DC/DC-AC dual-purpose circuit
CN105932755A (en) * 2016-04-21 2016-09-07 武汉理工大学 Electric automobile high-power DC charging machine/pile three-phase PFC rectification device and control method thereof
CN106130147A (en) * 2016-07-29 2016-11-16 武汉理工大学 The vehicle-mounted charger of electric automobile of a kind of buck one and control method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1599222A (en) * 2003-09-19 2005-03-23 株式会社三社电机制作所 Electroplate supply unit
CN102916440B (en) * 2012-09-20 2015-01-07 中国电力科学研究院 Battery energy storage system based power conversion system and control method thereof
CN105932755A (en) * 2016-04-21 2016-09-07 武汉理工大学 Electric automobile high-power DC charging machine/pile three-phase PFC rectification device and control method thereof
CN105871244A (en) * 2016-05-06 2016-08-17 钛白金科技(深圳)有限公司 Single-phase AC-DC/DC-AC dual-purpose circuit and three-phase AC-DC/DC-AC dual-purpose circuit
CN106130147A (en) * 2016-07-29 2016-11-16 武汉理工大学 The vehicle-mounted charger of electric automobile of a kind of buck one and control method

Also Published As

Publication number Publication date
CN107742917A (en) 2018-02-27

Similar Documents

Publication Publication Date Title
CN107742917B (en) Three-phase PFC (Power factor correction) rectifying device with voltage boosting and reducing functions for high-power charging pile of electric automobile and control method
KR101284331B1 (en) Recharge systen for green car and method thereof
CN104272571B (en) Power conversion device
CN202435108U (en) Charging cabinet
CN202721450U (en) Fully controllable energy feedback device
CN203632572U (en) Current transformer and photovoltaic power generation and electricity system
JP2020532943A (en) Electric vehicle power hub and its operating mode
CN106549434A (en) Integrated bidirectional battery charger is generated with rechargeable energy
CN106655417B (en) Charging control method and charging control device for electric automobile and electric automobile
CN105932755B (en) Electric car high power DC charger/stake three-phase PFC fairing and control method
CN103117642A (en) Control system and method of liquid level control (LLC) resonant converter
CN104734553B (en) Current transformer, photovoltaic hair electric system and its control method
CN108964450B (en) Composite circuit for connecting DC power supply to AC power supply
CN103057435A (en) Electromobile high integration density control system
Pandey et al. PFC-SEPIC converter-fed half-bridge LLC resonant converter for e-bike charging applications
CN107139738B (en) Charging equalization method and alternating current-direct current dual-purpose charging pile
CN106515503A (en) Charging and discharging method for electric automobile and charger
CN103269113B (en) Low-voltage electromobile driving governor and charging method
CN110557038A (en) full-MOS tube voltage regulator of motorcycle of full-wave synchronous rectification
Kaneko et al. Switching-frequency ripple current reduction of DC-link capacitor for a single-phase charger
CN106130147B (en) A kind of electric automobile and vehicle-mounted charger and control method of buck one
CN108429453B (en) Vehicle-mounted high-voltage inversion conversion device and control method
CN209738833U (en) Electric automobile integrated system that charges
CN210867175U (en) Controller
Ghosh et al. A manitoba converter based Bi-directional on-board charger for plug-in electric vehicles

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant