CN210970736U - Charging management system of charging pile - Google Patents
Charging management system of charging pile Download PDFInfo
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- CN210970736U CN210970736U CN201921533843.2U CN201921533843U CN210970736U CN 210970736 U CN210970736 U CN 210970736U CN 201921533843 U CN201921533843 U CN 201921533843U CN 210970736 U CN210970736 U CN 210970736U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The utility model provides a charging management system for a charging pile, which can carry out conventional charging on an energy storage battery at the electricity consumption peak period by arranging the energy storage battery; when the rapid charging is to be realized, the electric automobile can be charged through the energy storage battery and the alternating current power grid at the same time, the transformation of the power grid is not needed, only the energy storage battery pack needs to be added, and the rapid charging requirements of the electric automobiles with different capacities can be met by changing the capacity of the energy storage battery, so that the capacity requirement on a distribution transformer is reduced, and the capital investment for the transformation of the power grid is reduced; through setting up Buck converter and two-way half-bridge type converter, can charge to electric motor car group battery through the Buck converter, can realize two directions through two-way half-bridge type converter and charge, a direction is that the electric wire netting charges to energy storage battery, and another direction is that energy storage battery charges to electric motor car group battery.
Description
Technical Field
The utility model relates to a battery charge-discharge field especially relates to a fill electric pile charge management system.
Background
The charging pile is special power equipment for providing battery power support for the electric automobile, and provides charging service of corresponding voltage grades for various electric automobiles by utilizing a charging interface specified in national standards. At present, the types of charging piles are mainly alternating current charging piles and direct current charging piles. The alternating current charging pile is a charging pile in a conventional slow charging mode, a 220V or 380V alternating current power supply is provided from the outside, and a vehicle-mounted battery is charged by a vehicle-mounted charger, so that the charging mode is low in installation cost, the charging can be carried out by fully utilizing the electricity utilization valley time, the charging cost is reduced, and the service life of the battery is prolonged; but the charging time is too long; the direct current charging pile is a charging pile in a quick charging mode, alternating current and direct current conversion is completed by an off-board charger, and then the on-board battery is directly charged through a special direct current charging interface. Therefore, for solving the above problem, the utility model provides a fill electric pile charge management system can realize quick charge and offset a large amount of electric pile access influences to the electric wire netting that fill.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a fill electric pile charge management system can realize quick charge and offset a large amount of electric pile access influences to the electric wire netting that fill.
The technical scheme of the utility model is realized like this: the utility model provides a charging management system of a charging pile, which comprises a rectifying and filtering circuit, a processor, an electric vehicle battery pack, an energy storage battery, a Buck converter, a bidirectional half-bridge converter and a plurality of switch driving circuits;
the input end of the rectifying and filtering circuit is electrically connected with the power grid, the output end of the rectifying and filtering circuit is electrically connected with the input end of the Buck converter and the input end of the bidirectional half-bridge type converter respectively, the output end of the Buck converter is electrically connected with the input end of the electric vehicle battery pack, the output end of the bidirectional half-bridge type converter is electrically connected with the input end of the energy storage battery, the input ends of the switch driving circuits are electrically connected with the PWM (pulse width modulation) ports of the processor in a one-to-one correspondence mode, and the output ends of the switch driving circuits are electrically connected with the Buck converter and the bidirectional half-bridge.
On the basis of the above technical solution, preferably, the rectifying and filtering circuit includes: the EMI filter circuit, the step-down transformer and the full-bridge rectifier circuit are electrically connected in sequence;
the input end of the EMI filter circuit is electrically connected with the power grid, the output end of the EMI filter circuit is electrically connected with the input end of the full-bridge rectifier circuit through the step-down transformer, and the output end of the full-bridge rectifier circuit is electrically connected with the input end of the Buck converter and the input end of the bidirectional half-bridge type converter respectively.
On the basis of the technical scheme, the device preferably further comprises a multi-path voltage detection circuit and a multi-path current detection circuit;
the input end of the multi-path voltage detection circuit is electrically connected with the output end of the Buck converter and the output end of the bidirectional half-bridge converter respectively, and the output ends of the multi-path voltage detection circuit are electrically connected with the PWM ports of the processor in a one-to-one correspondence manner;
the input end of the multi-path current detection circuit is electrically connected with the output end of the Buck converter and the output end of the bidirectional half-bridge converter respectively, and the output ends of the multi-path current detection circuit are electrically connected with the PWM ports of the processor in a one-to-one correspondence mode.
On the basis of the technical scheme, preferably, the Buck converter comprises a MOS transistor Q1, resistors R7-R9, capacitors C9-C13, an inductor L3, a diode D2 and a diode D3;
the drain of the MOS transistor Q1 is electrically connected to the output end of the full-bridge rectifier circuit, one end of the capacitor C9, one end of the resistor R7 and the anode of the diode D2, the other end of the resistor R7 is electrically connected to the source of the MOS transistor Q1 through the capacitor C10, the cathode of the diode D2 is electrically connected to the source of the MOS transistor Q1, the gate of the MOS transistor Q1 is electrically connected to the output end of the switch driving circuit, the source of the MOS transistor Q1 is electrically connected to the cathode of the diode D3, one end of the resistor R8 and one end of the inductor L, the other end of the capacitor C9 and the anode of the diode D3 are electrically connected to the neutral line, the other end of the resistor R8 is electrically connected to the neutral line through the capacitor C11, the other end of the inductor L is electrically connected to one end of the capacitor C12, one end of the C13, one end of the resistor R9 and the anode of the battery pack of the electric vehicle, the other end of the capacitor C12, the other end of the resistor R363636.
Further preferably, the MOS transistor Q2, the MOS transistor Q3, the resistors R10-R12, the capacitors C14-C18, the inductor L4, the diode D4 and the diode D5;
the drain of the MOS transistor Q2 is electrically connected to the output end of the full-bridge rectifier circuit, one end of the capacitor C18, one end of the resistor R12 and the anode of the diode D5, the other end of the resistor R12 is electrically connected to the source of the MOS transistor Q2 through the capacitor C17, the cathode of the diode D5 is electrically connected to the source of the MOS transistor Q2, the gate of the MOS transistor Q2 is electrically connected to the output end of the switch driving circuit, the source of the MOS transistor Q2 is electrically connected to the drain of the MOS transistor Q3, the resistor R11, the anode of the diode D4 and one end of the inductor L, the cathode of the diode D4 is electrically connected to the other end of the resistor R4, the source of the MOS transistor Q4 is electrically connected to the neutral line, the gate of the MOS transistor Q4 is electrically connected to the output end of the other switch driving circuit, the other end of the resistor R4 is electrically connected to the neutral line through the capacitor C4, the other end of the inductor R4 is electrically connected to the cathode of the capacitor C4, the energy storage resistor R4 and the cathode of the energy storage battery 4.
Further preferably, the switch driving circuit comprises a PC923 driving chip, resistors R19-R22, a capacitor C21 and a diode D10;
the PWM port of the processor is electrically connected with the anode of the PC923 driving chip through a resistor R19, one end of a resistor R20 and one end of a capacitor C21 are respectively electrically connected with the anode of the PC923 driving chip, the other end of the resistor R20 and the other end of the capacitor C21 are both grounded, the output end of the PC923 driving chip is electrically connected with the gate of the MOS transistor Q1, the MOS transistor Q2 or the MOS transistor Q3 through a resistor R21, the cathode of the diode D10 is electrically connected with the output end of the PC923 driving chip, and the anode of the diode D10 is electrically connected with one end of the resistor R22.
Further preferably, the processor is a TMS320F28335 chip;
the pin PWM _ IN1 of the TMS320F28335 chip is electrically connected with the anode of the PC923 driver chip.
The utility model discloses a fill electric pile charge management system has following beneficial effect for prior art:
(1) by arranging the energy storage battery, the energy storage battery can be charged conventionally in the electricity consumption low peak period; when the rapid charging is to be realized, the electric automobile can be charged through the energy storage battery and the alternating current power grid at the same time, the transformation of the power grid is not needed, only the energy storage battery pack needs to be added, and the rapid charging requirements of the electric automobiles with different capacities can be met by changing the capacity of the energy storage battery, so that the capacity requirement on a distribution transformer is reduced, and the capital investment for the transformation of the power grid is reduced;
(2) by arranging the Buck converter and the bidirectional half-bridge converter, the electric vehicle battery pack can be charged through the Buck converter, and the charging in two directions can be realized through the bidirectional half-bridge converter, wherein one direction is that the electric network charges the energy storage battery, and the other direction is that the energy storage battery charges the electric vehicle battery pack;
(3) by arranging the RCD absorption circuit in the Buck converter and the bidirectional half-bridge converter, the peak voltage between the MOS tube turn-off moment and the diode reverse cut-off moment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural diagram of a charging management system of a charging pile of the present invention;
fig. 2 is a circuit diagram of a rectifying and filtering circuit in a charging management system of a charging pile of the present invention;
fig. 3 is a circuit diagram of a Buck converter in the charging management system of the charging pile of the present invention;
fig. 4 is a circuit diagram of a bidirectional half-bridge converter in a charging management system of a charging pile of the present invention;
fig. 5 is a circuit diagram of a switch driving circuit in the charging pile charging management system of the present invention;
fig. 6 is a circuit diagram of a voltage detection circuit in the charging management system of the charging pile of the present invention;
fig. 7 is the utility model relates to a fill electric pile charge management system in current detection circuit's circuit diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1, the utility model discloses a fill electric pile charge management system, it includes rectifier filter circuit, electric motor car group battery, energy storage battery, Buck converter, two-way half-bridge type converter, a plurality of switch drive circuit, multichannel voltage detection circuit and current detection circuit. The rectification filter circuit comprises an EMI filter circuit, a step-down transformer and a full-bridge rectification circuit. In this embodiment, the input terminal of the EMI filter circuit is electrically connected to the power grid, the output terminal of the EMI filter circuit is electrically connected to the input terminal of the full-bridge rectifier circuit through the step-down transformer, the output terminal of the full-bridge rectifier circuit is electrically connected to the input terminal of the Buck converter, the input terminal of the voltage current detection circuit and the input terminal of the bidirectional half-bridge type converter, the output terminal of the Buck converter is electrically connected to the input terminal of the electric vehicle battery pack, the output terminal of the voltage current detection circuit is electrically connected to the processor, the output terminal of the bidirectional half-bridge type converter is electrically connected to the input terminal of the energy storage battery, the input terminals of the switch driving circuits are electrically connected to the PWM ports of the processor in a one-to-one correspondence manner, the output terminals of the switch driving circuits are electrically connected to the Buck converter and the bidirectional half-bridge type converter, and the input terminals of the multi, the output ends of the multi-path voltage detection circuit are respectively electrically connected with the PWM ports of the processor in a one-to-one correspondence manner; the input end of the multi-path current detection circuit is electrically connected with the output end of the Buck converter and the output end of the bidirectional half-bridge converter respectively, and the output ends of the multi-path current detection circuit are electrically connected with the PWM ports of the processor in a one-to-one correspondence mode.
The rectifying and filtering circuit converts alternating current voltage with positive and negative changes into unidirectional pulsating voltage by utilizing unidirectional conductivity of the diode, and the rectifying diode is periodically switched on and off under the action of an alternating current power supply to enable a load to obtain pulsating direct current. Since the rectifying and filtering circuit is common knowledge in the field, it is the basis for designing the power supply. Therefore, in the present embodiment, a commonly used rectifying and filtering circuit is adopted, and the improvement of the rectifying and filtering circuit is not involved. In this embodiment, the rectifying-filtering circuit includes: the EMI filter circuit, the step-down transformer and the full-bridge rectifier circuit are electrically connected in sequence; the input end of the EMI filter circuit is electrically connected with the power grid, the output end of the EMI filter circuit is electrically connected with the input end of the full-bridge rectifier circuit through the step-down transformer, and the output end of the full-bridge rectifier circuit is electrically connected with the input end of the Buck converter and the input end of the bidirectional half-bridge type converter respectively. The circuit diagram of the rectifying and filtering circuit is shown in fig. 2, wherein the resistor Rl, the resistor R2 and the resistor R3 are three voltage dependent resistors, and the function of the three voltage dependent resistors is to prevent the instantaneous high voltage in the power grid from damaging the working devices. When the incoming line voltage is too high, the resistance value of the voltage dependent resistor is rapidly reduced, and the voltage of the power grid can fall on the wire and the voltage dependent resistor, so that the incoming line voltage is not too high, and the overvoltage protection function of the equipment is realized. The EMI filter circuit comprises a common-mode interference and differential-mode interference suppression circuit in order to improve the stability and safety of system operation, wherein the common-mode interference is an interference signal transmitted between a wire and the ground and belongs to asymmetric interference; the differential mode interference is an interference signal transmitted between two wires and belongs to symmetric interference. The capacitors C1 and C2 are differential mode suppression capacitors, and the capacitors C3 and C4 are common mode suppression capacitors.
As shown in FIG. 3, the Buck converter comprises an MOS tube Q, a resistor R-R, a capacitor C-C, an inductor 3, a diode D and a diode D, wherein a drain electrode of the MOS tube Q is electrically connected with an output end of a full-bridge rectification circuit, one end of the capacitor C, one end of the resistor R and an anode of the diode D respectively, the other end of the resistor R is electrically connected with a source electrode of the MOS tube Q through the capacitor C, a cathode electrode of the diode D is electrically connected with a source electrode of the MOS tube Q, a grid electrode of the MOS tube Q is electrically connected with an output end of a switch driving circuit, a source electrode of the MOS tube Q is electrically connected with a cathode electrode of the diode D, one end of the resistor R and one end of the inductor 3 respectively, the other end of the capacitor C and an anode of the diode D are electrically connected with a zero line respectively, the other end of the resistor R is electrically connected with the zero line through the capacitor C, the other end of the inductor 3 is electrically connected with one end of the capacitor C, one end of the resistor R and one end of the battery pack respectively, the other end of the capacitor C is electrically connected with the capacitor C, the anode of the capacitor C, the resistor R and the capacitor R is connected with the capacitor C, the resistor R is connected with the capacitor C, the capacitor C is connected with the capacitor C, the resistor R, the capacitor C is connected with the resistor R, the capacitor C, the resistor.
As shown in FIG. 4, the bidirectional half-bridge converter comprises a MOS tube Q2, a MOS tube Q3, a resistor R3-R3, a capacitor C3-C3, an inductor 3, a diode D3 and a diode D3, wherein a drain of the MOS tube Q3 is electrically connected with an output end of the full-bridge rectifier circuit, one end of the capacitor C3, one end of the resistor R3 and an anode of the diode D3, the other end of the resistor R3 is electrically connected with a source of the MOS tube Q3 through the capacitor C3, a cathode of the diode D3 is electrically connected with a source of the MOS tube Q3, a gate of the MOS tube Q3 is electrically connected with an output end of the switch driving circuit, a source of the MOS tube Q3 is electrically connected with a drain of the MOS tube Q3, a source of the MOS tube Q3, an anode of the diode D3 and one end of the inductor 3, a cathode of the diode D3 is electrically connected with a drain of the resistor R3, a drain of the MOS tube Q3, a source of the MOS tube Q3, a drain of the diode D3 is electrically connected with a drain of the capacitor C3, a drain of the capacitor C3 is electrically connected with one end of the capacitor C3, a drain of the capacitor C3, a drain of the other end of the capacitor C3, a resistor, a drain of the other end of the capacitor C of the.
The energy storage battery can be charged conventionally in the electricity consumption low peak period; when realizing quick charge, can charge for electric automobile simultaneously through energy storage battery and alternating current electric wire netting, need not reform transform the electric wire netting, only need increase the group battery for the energy storage, can satisfy different capacity electric automobile's quick charge requirement through the capacity that changes energy storage battery, reduced the capacity demand to distribution transformer, reduced the fund input of electric wire netting transformation. In the power grid electricity consumption valley period, if the SOC of the energy storage battery and the SOC of the electric vehicle battery are both very small, the energy storage battery and the electric vehicle battery are charged through the power grid; only when its SOC is large, the feedback of both energies needs to be considered.
And the switch driving circuit drives the MOS tube. In the present embodiment, as shown in fig. 7, the switch driving circuit includes a PC923 driving chip, resistors R19-R22, a capacitor C21, and a diode D10; specifically, the PWM port of the processor is electrically connected to the anode of the PC923 driver chip through a resistor R19, one end of a resistor R20 and one end of a capacitor C21 are electrically connected to the anode of the PC923 driver chip, the other end of the resistor R20 and the other end of the capacitor C21 are both grounded, the output end of the PC923 driver chip is electrically connected to the gate of the MOS transistor Q1, the MOS transistor Q2 or the MOS transistor Q3 through a resistor R21, the cathode of the diode D10 is electrically connected to the output end of the PC923 driver chip, and the anode of the diode D10 is electrically connected to one end of the resistor R22. The PC923 driving chip is a typical MOSFET/IGBT special driving circuit chip. The PWM wave output by the processor reaches the MOS tube through the PC923 driving chip, and then drives the MOS tube.
The voltage detection circuit and the current detection circuit respectively collect the voltage and the current of the output ends of the Buck converter and the bidirectional half-bridge converter and send collected signals to the processor. In this embodiment, the improvement of the voltage detection circuit and the current detection circuit is not involved, so the voltage detection circuit and the current detection circuit adopt the traditional voltage detection circuit and current detection circuit, the circuit diagram of the voltage detection circuit is shown in fig. 5, and the circuit diagram of the current detection circuit is shown in fig. 6, wherein the output ends of the voltage detection circuit and the current detection circuit are respectively electrically connected with the analog signal input end of the analog-to-digital conversion functional pin of the processor.
In this embodiment, the processor is a TMS320F28335 chip, which functions to output PWM waves to the PC923 driver chip. Specifically, the PWM _ IN1 pin of the TMS320F28335 chip is electrically connected to the anode of the PC923 driver chip.
The working principle of the embodiment is as follows: alternating current on a power grid is rectified and filtered by the rectifying and filtering circuit to be changed into stable direct current, the switch driving circuit drives MOS (metal oxide semiconductor) tubes in the Buck converter and the bidirectional half-bridge converter to be conducted respectively, a charging channel is opened, and direct current signals supply power to an electric vehicle battery pack and an energy storage battery through the Buck converter and the bidirectional half-bridge converter respectively. In the power consumption valley period of the power grid, if the SOC of the energy storage battery and the SOC of the electric vehicle battery are both very small, the energy storage battery pack is charged through the power grid, in the power consumption peak period, the energy storage battery pack is not charged all the time, further increase of power consumption load is avoided, if the capacity of the energy storage battery pack is lower than 20%, the electric vehicle is charged normally only through the power grid, and quick charging cannot be realized; if the voltage is higher than 20%, the system can adjust the output power and the object of the energy storage battery pack according to the capacity level of the battery of the electric vehicle and the size of the household load, realize different charging rates of the electric vehicle, and can feed redundant electric energy back to the power grid to reduce the voltage of the power grid in a peak load state.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a fill electric pile charge management system, its includes rectification filter circuit, treater and electric motor car group battery, its characterized in that: the bidirectional half-bridge type converter also comprises an energy storage battery, a Buck converter, a bidirectional half-bridge type converter and a plurality of switch driving circuits;
the input end of the rectifying and filtering circuit is electrically connected with a power grid, the output end of the rectifying and filtering circuit is electrically connected with the input end of the Buck converter and the input end of the bidirectional half-bridge type converter respectively, the output end of the Buck converter is electrically connected with the input end of the electric vehicle battery pack, the output end of the bidirectional half-bridge type converter is electrically connected with the input end of the energy storage battery, the input ends of the switch driving circuits are electrically connected with the PWM (pulse width modulation) ports of the processor in a one-to-one correspondence mode, and the output ends of the switch driving circuits are electrically connected with the Buck converter and the bidirectional half-bridge type.
2. The charging pile charging management system according to claim 1, characterized in that: the rectification filter circuit includes: the EMI filter circuit, the step-down transformer and the full-bridge rectifier circuit are electrically connected in sequence;
the input end of the EMI filter circuit is electrically connected with a power grid, the output end of the EMI filter circuit is electrically connected with the input end of the full-bridge rectifying circuit through the step-down transformer, and the output end of the full-bridge rectifying circuit is electrically connected with the input end of the Buck converter and the input end of the bidirectional half-bridge type converter respectively.
3. The charging pile charging management system according to claim 1, characterized in that: the device also comprises a multi-path voltage detection circuit and a current detection circuit;
the input ends of the multiple voltage detection circuits are respectively and electrically connected with the output end of the Buck converter and the output end of the bidirectional half-bridge converter, and the output ends of the multiple voltage detection circuits are respectively and electrically connected with the PWM ports of the processor in a one-to-one correspondence manner;
the input end of the multi-path current detection circuit is electrically connected with the output end of the Buck converter and the output end of the bidirectional half-bridge converter respectively, and the output end of the multi-path current detection circuit is electrically connected with the PWM ports of the processor in a one-to-one correspondence mode.
4. The charging pile charging management system according to claim 1, wherein the Buck converter comprises a MOS transistor Q1, resistors R7-R9, capacitors C9-C13, an inductor L3, a diode D2 and a diode D3;
the drain of the MOS transistor Q1 is electrically connected to the output end of the full-bridge rectifier circuit, one end of the capacitor C9, one end of the resistor R7 and the anode of the diode D2, the other end of the resistor R7 is electrically connected to the source of the MOS transistor Q1 through the capacitor C10, the cathode of the diode D2 is electrically connected to the source of the MOS transistor Q1, the gate of the MOS transistor Q1 is electrically connected to the output end of the switch driving circuit, the source of the MOS transistor Q1 is electrically connected to the cathode of the diode D3, one end of the resistor R8 and one end of the inductor L, the other end of the capacitor C9 and the anode of the diode D3 are electrically connected to the neutral line, the other end of the resistor R8 is electrically connected to the neutral line through the capacitor C11, the other end of the inductor L is electrically connected to one end of the capacitor C12, one end of the C13, one end of the resistor R9 and the anode of the battery pack of the electric vehicle, the other end of the capacitor C12, the other end of the resistor R9 and the.
5. The charging pile charging management system according to claim 4, wherein the bidirectional half-bridge type converter comprises a MOS transistor Q2, a MOS transistor Q3, resistors R10-R12, capacitors C14-C18, an inductor L4, a diode D4 and a diode D5;
the drain of the MOS transistor Q2 is electrically connected to the output end of the full-bridge rectifier circuit, one end of the capacitor C18, one end of the resistor R12 and the anode of the diode D5, the other end of the resistor R12 is electrically connected to the source of the MOS transistor Q2 through the capacitor C17, the cathode of the diode D5 is electrically connected to the source of the MOS transistor Q2, the gate of the MOS transistor Q2 is electrically connected to the output end of the switch driving circuit, the source of the MOS transistor Q2 is electrically connected to the drain of the MOS transistor Q3, the resistor R11, the anode of the diode D4 and one end of the inductor L, the cathode of the diode D4 is electrically connected to the other end of the resistor R4, the source of the MOS transistor Q4 is electrically connected to the neutral line, the gate of the MOS transistor Q4 is electrically connected to the output end of the other switch driving circuit, the other end of the resistor R4 is electrically connected to the neutral line through the capacitor C4, the cathode of the inductor C4, the other end of the capacitor C4, the anode of the capacitor C4, the energy storage resistor R4 and the cathode of the battery 4 are electrically connected to the other end of the energy storage battery 4.
6. The charging pile charging management system according to claim 4 or 5, characterized in that: the switch driving circuit comprises a PC923 driving chip, resistors R19-R22, a capacitor C21 and a diode D10;
the PWM mouth of treater passes through resistance R19 and PC923 driver chip's positive pole electric connection, resistance R20's one end and electric capacity C21's one end respectively with PC923 driver chip's positive pole electric connection, resistance R20's the other end and electric capacity C21's the other end all ground connection, PC923 driver chip's output passes through resistance R21 and MOS pipe Q1, MOS pipe Q2 or MOS pipe Q3's grid electric connection, diode D10's negative pole and PC923 driver chip's output electric connection, diode D10's anodal and resistance R22's one end electric connection.
7. The charging pile charging management system according to claim 6, characterized in that: the processor is a TMS320F28335 chip;
the pin PWM _ IN1 of the TMS320F28335 chip is electrically connected with the anode of the PC923 drive chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921533843.2U CN210970736U (en) | 2019-09-16 | 2019-09-16 | Charging management system of charging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921533843.2U CN210970736U (en) | 2019-09-16 | 2019-09-16 | Charging management system of charging pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210970736U true CN210970736U (en) | 2020-07-10 |
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| CN201921533843.2U Active CN210970736U (en) | 2019-09-16 | 2019-09-16 | Charging management system of charging pile |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060962A (en) * | 2020-09-25 | 2020-12-11 | 吴百发 | Multi-power-supply intelligent quick-charging energy management system |
| CN114179643A (en) * | 2021-10-29 | 2022-03-15 | 深圳市科华恒盛科技有限公司 | Bidirectional charging pile |
| CN114597539A (en) * | 2022-03-04 | 2022-06-07 | 山东大学 | Low-temperature heating-charging integrated topology for power battery of electric automobile and control method |
| CN115622105A (en) * | 2022-11-09 | 2023-01-17 | 国网河南省电力公司济源供电公司 | Charging and discharging system of energy storage type electric automobile charging pile |
| WO2023125826A1 (en) * | 2021-12-30 | 2023-07-06 | 奥动新能源汽车科技有限公司 | Bidirectional charging management system and battery supervision device thereof |
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2019
- 2019-09-16 CN CN201921533843.2U patent/CN210970736U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060962A (en) * | 2020-09-25 | 2020-12-11 | 吴百发 | Multi-power-supply intelligent quick-charging energy management system |
| CN114179643A (en) * | 2021-10-29 | 2022-03-15 | 深圳市科华恒盛科技有限公司 | Bidirectional charging pile |
| CN114179643B (en) * | 2021-10-29 | 2024-02-09 | 深圳市科华恒盛科技有限公司 | Bidirectional charging pile |
| WO2023125826A1 (en) * | 2021-12-30 | 2023-07-06 | 奥动新能源汽车科技有限公司 | Bidirectional charging management system and battery supervision device thereof |
| CN114597539A (en) * | 2022-03-04 | 2022-06-07 | 山东大学 | Low-temperature heating-charging integrated topology for power battery of electric automobile and control method |
| CN115622105A (en) * | 2022-11-09 | 2023-01-17 | 国网河南省电力公司济源供电公司 | Charging and discharging system of energy storage type electric automobile charging pile |
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