CN118182212B - Charging pile energy control method and system - Google Patents
Charging pile energy control method and system Download PDFInfo
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- CN118182212B CN118182212B CN202410574672.7A CN202410574672A CN118182212B CN 118182212 B CN118182212 B CN 118182212B CN 202410574672 A CN202410574672 A CN 202410574672A CN 118182212 B CN118182212 B CN 118182212B
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000004146 energy storage Methods 0.000 claims abstract description 48
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 25
- 229910052710 silicon Inorganic materials 0.000 claims description 25
- 239000010703 silicon Substances 0.000 claims description 25
- 239000003990 capacitor Substances 0.000 claims description 11
- 101000908580 Homo sapiens Spliceosome RNA helicase DDX39B Proteins 0.000 description 22
- 102100021298 b(0,+)-type amino acid transporter 1 Human genes 0.000 description 22
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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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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Abstract
The invention discloses a charging pile energy control method and a charging pile energy control system, wherein the charging pile energy control method comprises an energy storage module, a rectifying module and a power supply module, wherein the power supply module is used for outputting alternating current to the rectifying module and inputting the alternating current to the energy storage module after the alternating current is rectified by the rectifying module.
Description
Technical Field
The invention relates to the technical field of energy control of charging piles, in particular to a method and a system for controlling energy of a charging pile.
Background
Publication No.: CN114448068a discloses an energy storage type charging pile system and an energy control method thereof. The system can perform charging conversion between the municipal power supply system and the two energy storage systems in a high-low electricity price period. However, since the municipal power grid has a limit on the maximum power supply current of the site, the maximum energy storage parameter of each charging pile or battery needs to be distributed according to whether the energy storage parameter of the battery meets the standard and the actual use quantity parameter, so as to prevent the reduction of the charging efficiency caused by the parameter change.
Disclosure of Invention
The invention aims to provide a charging pile energy control system, which comprises an energy storage module, a rectifying module and a power supply module, wherein the power supply module is used for outputting alternating current to the rectifying module and inputting the alternating current to the energy storage module after rectifying by the rectifying module, and the charging pile energy control system is characterized in that the energy storage module comprises an energy storage regulation and control unit and an energy storage distribution unit, the number of the energy storage distribution units is consistent with the sum of the numbers of energy storage batteries BAT1 forming a battery pack in a plurality of charging piles, each battery BAT1 corresponds to and is connected with one energy storage distribution unit for balanced distribution, the energy storage regulation and control unit is used for inputting reference distribution signals to the plurality of energy storage distribution units, and the energy storage distribution units charge the batteries BAT1 based on the signals.
Further, the energy storage regulation unit comprises a first resistor R1, a second resistor R2, a third resistor R3, a first digital potentiometer U1, a third operational amplifier U3, a fifth digital potentiometer U5, a sixth operational amplifier U6, a first connector P1 and a second connector P2, one end of the first resistor R1 is connected with one end of the third resistor R3 and the inverting end of the sixth operational amplifier U6, the output end of the sixth operational amplifier U6 is connected with the other end of the third resistor R3 and the first connector P1, the other end of the first resistor R1 is connected with one end of the second resistor R2, the output end of the third operational amplifier U3, the other end of the second resistor R2 is connected with the inverting end of the third operational amplifier U3, the tenth pin of the fifth digital potentiometer U5 and the eleventh pin of the fifth digital potentiometer U5, the fourth pin of the fifth digital potentiometer U5 is connected with a power supply, the twelfth pin of the fifth digital potentiometer U1 is connected with the first pin of the fifth digital potentiometer U1, the inverting end of the fifth digital potentiometer U1 and the fifth digital potentiometer U3, the tenth pin of the fifth digital potentiometer U5 is connected with the inverting end of the fifth digital potentiometer U1, and the fifth digital potentiometer U5 is connected with the inverting end of the fifth digital potentiometer U1.
Further, the energy storage regulation unit further comprises an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a seventeenth resistor R17, a ninth operational amplifier U9, a tenth resistor R10, a third connector P3, a fourth connector P4 and a first gear switch ZL1, one end of the eighth resistor R8, a fourth pin of the tenth digital potentiometer U10 are connected with a power supply, the other end of the eighth resistor R8, an inverting end of the ninth operational amplifier U9 and a twelfth pin of the tenth digital potentiometer U10 are connected, the non-inverting end of the ninth operational amplifier U9 and one end of the tenth resistor R10 are connected with a third connector P3, the output end of the ninth operational amplifier U9 and one end of the ninth resistor R9, a fifth pin of the fifth digital potentiometer U5 and a fifth pin of the tenth digital potentiometer U10 are connected, the third pin of the tenth digital potentiometer U10 and one end of the seventeenth resistor R17 are connected, the other end of the fifth digital potentiometer U5 and the third pin of the tenth digital potentiometer U5 are connected, and the other end of the ninth resistor R9, the tenth end of the tenth digital potentiometer U10 and the tenth resistor R10 and the other end of the tenth digital potentiometer U10 are connected with the tenth digital potentiometer U10.
Further, the energy storage regulation unit further comprises a sixth resistor R6, a seventh resistor R7, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a sixteenth resistor R16, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a second operational amplifier U2, a fourth operational amplifier U4, an eleventh controllable silicon U11, a twelfth inverter U12, a thirteenth controllable silicon U13, a fourteenth AND gate U14, a fifteenth operational amplifier U15, a first MOS transistor Q1, a second triode Q2, a third triode Q3, a first capacitor C1, wherein the drain electrode of the first MOS transistor Q1, the collector electrode of the second triode Q2, the collector electrode of the third triode Q3 are connected with a power supply, the base electrode of the third triode Q3 is connected with the output end of the twelfth inverter U12, the input end of the twelfth inverter U12 is connected with the base electrode of the second triode Q2, and the output end of the ninth operational amplifier U9, the emitter of the second triode Q2 is connected with one end of an eighteenth resistor R18 and the control electrode of a thirteenth silicon controlled rectifier U13, the source of the first MOS tube Q1 is connected with the anode of an eleventh silicon controlled rectifier U11 and the anode of the thirteenth silicon controlled rectifier U13, the grid of the first MOS tube Q1 is connected with one end of the eleventh resistor R11 and the output end of a fourth operational amplifier U4, the emitter of the third triode Q3 is connected with one end of a nineteenth resistor R19 and the control electrode of the eleventh silicon controlled rectifier U11, the cathode of the thirteenth silicon controlled rectifier U13 is connected with one end of a sixteenth resistor R16, the first input end of a fourteenth and gate U14, the cathode of the eleventh silicon controlled rectifier U11 is connected with one end of a twentieth resistor R20 and the second input end of the fourteenth and gate U14, the output end of the fourteenth and gate U14 is connected with the third pin of a tenth digital potentiometer U10, the inverting end of the fourth operational amplifier U4 is connected with one end of the twelfth resistor R12 and the output end of the second operational amplifier U2, the inverting end of the second operational amplifier U2 is connected with the other end of the twelfth resistor R12, one end of a thirteenth resistor R13 is connected, the same-phase end of a second operational amplifier U2 is connected with one end of a seventh resistor R7, one end of a first capacitor C1 is connected, the other end of the first capacitor C1 is connected with one end of a sixth resistor R6, the opposite-phase end of a fifteenth operational amplifier U15 is connected with the output end of the fifteenth operational amplifier U15, the same-phase end of the fifteenth operational amplifier U15 is connected with a third connector P3, the other end of the sixth resistor R6, the other end of the seventh resistor R7, the other end of an eleventh resistor R11, the other end of the thirteenth resistor R13, the other end of a sixteenth resistor R16, the other end of an eighteenth resistor R18, the other end of a nineteenth resistor R19, the other end of a twentieth resistor R20 and the ground end are connected.
Further, the energy storage distribution unit comprises a fourth resistor R4, a fifth resistor R5, a twenty-first resistor R21, a twenty-second resistor R22, a sixteenth inverter U16, a seventeenth digital potentiometer U17, an eighteenth digital potentiometer U18, a nineteenth operational amplifier U19, a fourth triode Q4, a fifth connector P5, a sixth connection end P6, a seventh connector P7 and a first relay RL1, wherein a collector of the fourth triode Q4, the seventeenth digital potentiometer U17, a first pin of the eighteenth digital potentiometer U18 and a power supply are connected, one end of the fourth triode Q4 and one end of the twenty-first resistor R21 are connected with the input end of the sixteenth inverter U16, the other end of the twenty-first resistor R21 is connected with a sixth connection end P6, an emitter of the fourth triode Q4 and one end of the first relay RL1 are connected with one end of the coil, one end of the first relay RL1 and one end of the seventeenth digital potentiometer U17 are connected with one end P5, the other end of the seventeenth relay RL1 and one end of the seventeenth digital potentiometer U17 are connected with one end of the seventeenth resistor U17, the other end of the seventeenth resistor U17 and the seventeenth resistor R1 and the seventeenth resistor R17 are connected with one end of the seventeenth resistor U17, the twenty-first end of the twenty-first resistor R17 is connected with the seventeenth resistor R17, the twenty-first end of the twenty-first resistor R21 is connected with the seventeenth resistor R16, the twenty-first end of the twenty-first resistor R21 is connected with the seventeenth end of the seventeenth resistor R17, the seventeenth resistor R21, the seventeenth end is connected with the seventeenth resistor is connected with the seventeenth end of the seventeenth resistor R17, the seventeenth resistor is connected with the seventeenth resistor, the second pin of the eighteenth digital potentiometer U18, the fifth pin of the eighteenth digital potentiometer U18, the other end of the coil of the first relay RL1, the negative electrode of the battery BAT1 and the grounding end are connected.
Further, the energy storage regulation unit further comprises a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a twenty-seventh resistor R27 and a twenty-eighth resistor R28, wherein one end of the twenty-eighth resistor R28 is connected with a power supply, the other end of the twenty-eighth resistor R28 is connected with the first gear switch ZL1, one end of the twenty-third resistor R23 is connected with the first gear switch ZL1, the other end of the twenty-third resistor R23 is connected with one end of the twenty-fourth resistor R24, the first gear switch ZL1, the other end of the twenty-fourth resistor R24 is connected with one end of the twenty-fifth resistor R25, the first gear switch ZL1, the other end of the twenty-fifth resistor R25 is connected with one end of the twenty-sixth resistor R26, the first gear switch ZL1, the other end of the twenty-sixth resistor R26 is connected with the twenty-seventh resistor R27, the first gear switch ZL1, and the twenty-seventh resistor R27 is connected with the other end of the first gear switch ZL 1.
Furthermore, the energy storage regulation and control unit further comprises a fourteenth resistor R14 and a fifteenth resistor R15, one end of the fourteenth resistor R14 is connected with a power supply, the other end of the fourteenth resistor R14 is connected with one end of the fifteenth resistor R15 and the same-phase end of the fourth operational amplifier U4, and the other end of the fifteenth resistor R15 is connected with a grounding end.
Furthermore, the alternating current provided by the power supply module is three-phase alternating current, and the rectification module is three-phase half-bridge rectification.
Further, the energy control method comprises the following steps,
S1: the maximum supply current available from the current grid is obtained,
S2: generating a reference distribution signal according to the number of batteries in the charging pile and the maximum supply current,
S3: acquiring the current energy storage parameters of the battery and the actual number of the charging piles to be used, adjusting the voltage of the reference distribution signal,
S4: the actual charging current parameter of the battery is controlled at the maximum supply current that can be provided in dependence on the voltage parameter of the reference distribution signal.
Compared with the prior art, the invention has the beneficial effects that:
The invention carries out balanced distribution on the batteries in the charging pile through the energy storage regulation and control unit, and synthesizes and automatically corresponds to the voltage of the reference distribution signal according to the number of the batteries in the charging pile which is actually put into use, so as to ensure that the energy storage distribution unit carries out balanced energy storage on the batteries. In addition, after the regulation and control of the number of the charging piles are completed or the automatic corresponding completion is achieved, the stable output of the reference distribution signal is ensured, so that the occurrence of fluctuation condition is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the prior art and the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an overall structure provided by the present invention.
Fig. 2 is a schematic diagram of a circuit structure of an energy storage control unit according to the present invention.
Fig. 3 is a schematic diagram of a gear switch structure provided by the invention.
Fig. 4 is a schematic diagram of a circuit structure of an energy storage distribution unit according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, it being understood that the following text is only intended to describe one or more specific embodiments of the invention and is not intended to limit the scope of the invention as defined in the appended claims.
In the present invention, the second connector P2 and the first digital potentiometer U1 are used for collecting the maximum current signal allowed to be output by the rectifying module, the signal is input to the inverting terminal of the third operational amplifier U3 through the fifth digital potentiometer U5, the fifth digital potentiometer U5 is a common resistor in this embodiment, the resistance configuration corresponds to the actual number of the batteries BAT1, if the number of the batteries BAT1 is X, the amplitude of the reference distribution signal distributed to each energy storage distribution unit is I/x=the second resistor R2/the fifth digital potentiometer U5, the signal is input to the first resistor R1 after being operated by the third operational amplifier U3, and the first resistor R1, the third resistor R3 and the sixth operational amplifier U6 invert the signal input by the first resistor R1 to generate the reference distribution signal to the first connector P1, so that the current output by the rectifying module is distributed in an equalizing manner according to the number of the batteries BAT1, after the first connector P1 and the seventh connector P7 are connected, the energy storage distribution unit can control the battery BAT1 to charge the actual current according to the obtained reference distribution signal, and realize equalizing the battery BAT 1. Considering that the connection between the battery BAT1 and the rectifying module is required to be closed when the actual number of the battery BAT1 in the charging pile is regulated or the battery energy storage parameter reaches the standard, and correspondingly readjusting the amplitude of the reference distribution signal to enable the reference distribution signal to correspond to the number of the actually connected battery BAT1, in order to facilitate the automatic correspondence of the system during the regulation of the number, the amplitude of the reference distribution signal is ensured to keep corresponding to the number of the actually used battery BAT1, in this embodiment, the fifth digital potentiometer U5 is a digital resistor and the tenth digital potentiometer U10 is additionally arranged to detect the reference voltage of the corresponding number of the battery BAT1, wherein the reference voltage of the corresponding number of the battery BAT1 is provided by the fourth connector P4, the first gear switch ZL1 and the twenty-third resistor R23 to twenty-eighth resistor R28, and the first gear switch ZL1 knob is fluctuated during the regulation of the number of the charging pile, changing the connection state between the twenty-third resistor R23 and the twenty-seventh resistor R27 and the twenty-eighth resistor R28, connecting the fourth connector P4 and the third connector P3, obtaining the reference voltage corresponding to the quantity of the batteries BAT1 by the third connector P3, feeding the reference voltage back to the same phase end of the ninth operational amplifier U9, comparing the voltage at the front ends of the eighth resistor R8 and the twelfth pin of the tenth digital potentiometer U10 sampled by the inverting end of the ninth operational amplifier U9, outputting the corresponding adjusting signal to the fifth pin of the tenth digital potentiometer U10 by the output end of the ninth operational amplifier U9, forming a loop by the third pin of the tenth digital potentiometer U10 through the seventeenth resistor R17, synchronously adjusting the resistance value of the fifth digital potentiometer U5 until the reference voltage is adjusted to the quantity of the batteries BAT1 in the charging pile which is actually put into use after the output signal of the ninth operational amplifier U9 jumps, automatically corresponding to the reference distributing signal output by the sixth operational amplifier U6, therefore, the energy storage distribution unit can still perform balanced regulation and control.
On the basis, in order to avoid output fluctuation caused by the non-regulated state and the regulated state, the automatic corresponding function needs to be ensured to be capable of entering the standby state after the dynamic regulation is finished to ensure stable operation, so that the control logic and the detection parameters of the system need to be optimized to keep the reference distribution signal to enter the stable state after the regulation is finished, thereby avoiding the output fluctuation, in the embodiment, the third connector P3 feeds back the input signal to the same phase end of the fifteenth operational amplifier U15 and feeds back the input signal to the first capacitor C1 after the fifteenth operational amplifier U15 is followed, the first capacitor C1 is coupled and fed back to the second operational amplifier U2 for negative feedback output, when the input of the third connector P3 is unchanged in the initial state, the first capacitor C1 is decoupled through the seventh resistor R7, the second operational amplifier U2 is not output, the in-phase end of the fourth operational amplifier U4 is provided with reference voltage through a power supply, the output signal of the output end is fed back to the grid electrode of the first MOS tube Q1, the power supply signal of the drain end of the first MOS tube Q1 is input to the anode of the thirteenth controllable silicon U13 and the anode of the eleventh controllable silicon U11 through the source electrode of the first MOS tube Q1, when the signal output by the ninth operational amplifier U9 is simultaneously fed back to the twelfth inverter U12 and the second triode Q2, the ninth operational amplifier U9 is assumed to be in a level output state at the moment, the second triode Q2 is cut off, the twelfth inverter U12 outputs a signal to the third triode Q3, the collector power supply signal of the third triode Q3 is fed back to the control electrode of the eleventh silicon controlled rectifier U11 after being pulled up by the nineteenth resistor R19, the eleventh silicon controlled rectifier U11 is conducted, the power supply signal is input to the fourteenth AND gate U14 after being looped by the first MOS tube Q1, the eleventh silicon controlled rectifier U11 and the twentieth resistor R20 and regulated by the tenth digital potentiometer U10, when the output of the ninth operational amplifier U9 jumps, the twelfth inverter U12 is cut off, the second triode Q2 is conducted, the collector power supply signal of the second triode Q2 is input to the control electrode of the thirteenth silicon controlled rectifier U13 after being looped by the eighteenth resistor R18, the thirteenth controllable silicon U13 is conducted, the power supply signal at the drain end of the first MOS transistor Q1 is fed back to the fourteenth AND gate U14 after passing through the thirteenth controllable silicon U13 and the sixteenth resistor R16 loop, the signals are received by the first input end and the second input end of the fourteenth AND gate U14 and then output to the third pins of the tenth digital potentiometer U10 and the fifth digital potentiometer U5, the tenth digital potentiometer U10 and the fifth digital potentiometer U5 are dynamically regulated to enter a standby state so as to stabilize the reference distribution signal output by the first connector P1, when the input voltage of the third connector P3 is changed, the output change of the fifteenth operational amplifier U15 enables the first capacitor C1 to be time-lag due to the seventh resistor R7, The voltage is fed back to the same phase end of the second operational amplifier U2, the output of the second operational amplifier U2 enables the fourth operational amplifier U4 to be cut off, the first MOS tube Q1 is cut off, the thirteenth silicon controlled rectifier U13 and the eleventh silicon controlled rectifier U11 are cut off, the fourteenth AND gate U14 is not output, the tenth digital potentiometer U10 and the fifth digital potentiometer U5 enter a dynamic regulation state again, when the third connector P3 is changed, the first capacitor C1 is decoupled through the seventh resistor R7 and then the fourth operational amplifier U4 outputs the first MOS tube Q1 to be conducted, the twelfth inverter U12 and the second triode Q2 detect the current output and jump output of the ninth operational amplifier U9 until the fourteenth AND gate U14 outputs the tenth digital potentiometer U10 and the fifth digital potentiometer U5 enter a standby state again, the first connector P1 output remains stable in the standby state. In the energy storage distribution unit, a fifth connector P5 is connected with a rectifying module, a sixth connection end P6 inputs a charging signal based on the energy storage parameter of the battery BAT1 and whether the battery BAT1 is put into use, a seventh connector P7 receives a reference distribution signal, when the energy storage parameter of the battery BAT1 does not reach the standard and is in a state of being put into use, the charging signal is input to the sixth connection end P6, one path of the charging signal is fed back to the base electrode of a fourth triode Q4, the fourth triode Q4 is conducted, the rectifying module charges the battery BAT1, an eighteenth digital potentiometer U18 samples a corresponding current charging current signal of the battery BAT1 and compares the current charging current signal with the reference distribution signal to control a nineteenth operational amplifier U19 to output a regulating signal corresponding to the seventeenth digital potentiometer U17, so that the charge current obtained by the battery BAT1 coincides with the charge current obtained by the other batteries BAT 1.
The invention carries out balanced distribution on the batteries in the charging piles through the energy storage regulation and control unit, and automatically corresponds to the voltage of the reference distribution signal according to the number of the charging piles which are actually put into use, so as to ensure that the energy storage distribution unit carries out balanced energy storage on the batteries. In addition, after the regulation and control of the number of the charging piles are completed or the automatic corresponding completion is achieved, the stable output of the reference distribution signal is ensured, so that the occurrence of fluctuation condition is avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The charging pile energy control system comprises an energy storage module, a rectifying module and a power supply module, wherein the power supply module is used for outputting alternating current to the rectifying module and inputting the alternating current to the energy storage module after being rectified by the rectifying module;
The energy storage regulation and control unit comprises a first resistor, a second resistor, a third resistor, a first digital potentiometer, a third operational amplifier, a fifth digital potentiometer, a sixth operational amplifier, a first connector and a second connector, wherein one end of the first resistor is connected with one end of the third resistor and the inverting end of the sixth operational amplifier, the output end of the sixth operational amplifier is connected with the other end of the third resistor and the first connector, the other end of the first resistor is connected with one end of the second resistor and the output end of the third operational amplifier, the other end of the second resistor is connected with the inverting end of the third operational amplifier, the tenth pin of the fifth digital potentiometer and the eleventh pin of the fifth digital potentiometer are connected, the fourth pin of the fifth digital potentiometer, the first pin of the first digital potentiometer and the third pin of the first digital potentiometer are connected, the fourth pin of the first digital potentiometer is connected with the second connector, the second pin of the first digital potentiometer, the fifth pin of the first digital potentiometer, the same-phase end of the third operational amplifier, the fifth pin of the fifth digital potentiometer and the sixth digital potentiometer are connected with the same-phase end of the first digital potentiometer and the sixth digital potentiometer;
The energy storage regulation and control unit further comprises an eighth resistor, a ninth resistor, a tenth resistor, a seventeenth resistor, a ninth operational amplifier, a tenth digital potentiometer, a third connector, a fourth connector and a first gear switch, wherein one end of the eighth resistor, a fourth pin of the tenth digital potentiometer are connected with a power supply, the other end of the eighth resistor, an inverting end of the ninth operational amplifier is connected with a twelfth pin of the tenth digital potentiometer, an in-phase end of the ninth operational amplifier is connected with one end of the tenth resistor, the third connector, an output end of the ninth operational amplifier is connected with one end of the ninth resistor, a fifth pin of the fifth digital potentiometer and a fifth pin of the tenth digital potentiometer, one end of the tenth digital potentiometer is connected with one end of the seventeenth resistor, a third pin of the fifth digital potentiometer, the other end of the ninth resistor, the other end of the tenth resistor, the other end of the seventeenth resistor, a sixth pin of the tenth digital potentiometer, an eleventh pin of the tenth digital potentiometer, a fourteenth pin of the tenth digital potentiometer and a ground terminal are connected;
The energy storage regulation unit also comprises a sixth resistor, a seventh resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a sixteenth resistor, an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a second operational amplifier, a fourth operational amplifier, an eleventh silicon controlled rectifier, a twelfth inverter, a thirteenth silicon controlled rectifier, a fourteenth AND gate, a fifteenth operational amplifier, a first MOS tube, a second triode, a third triode and a first capacitor, wherein the drain electrode of the first MOS tube, the collector electrode of the second triode, the collector electrode of the third triode are connected with a power supply, the base electrode of the third triode is connected with the output end of the twelfth inverter, the input end of the twelfth inverter is connected with the base electrode of the second triode and the output end of the ninth operational amplifier, the emitter of the second triode is connected with one end of the eighteenth resistor and the control electrode of the thirteenth silicon controlled rectifier, the source electrode of the first MOS tube is connected with the anode of the eleventh silicon controlled rectifier and the anode of the thirteenth silicon controlled rectifier, the grid electrode of the first MOS tube is connected with one end of an eleventh resistor and the output end of a fourth operational amplifier, the emitter electrode of the third triode is connected with one end of a nineteenth resistor, one end of the thirteenth silicon controlled rectifier is connected with the first input end of a gate, the cathode of the eleventh silicon controlled rectifier is connected with one end of a twenty resistor, the fourteenth end of the fourteenth resistor is connected with the second input end of the gate, the output end of the fourteenth gate is connected with the third pin of a tenth digital potentiometer, the inverting end of the fourth operational amplifier is connected with one end of the twelfth resistor and the output end of the second operational amplifier, the inverting end of the second operational amplifier is connected with the other end of the twelfth resistor and one end of the thirteenth resistor, the in-phase end of the second operational amplifier is connected with one end of a seventh resistor and one end of a first capacitor, the other end of the first capacitor is connected with one end of the sixth resistor, the inverting terminal of the fifteenth operational amplifier is connected with the output terminal of the fifteenth operational amplifier, the non-inverting terminal of the fifteenth operational amplifier is connected with the third connector, and the other end of the sixth resistor, the other end of the seventh resistor, the other end of the eleventh resistor, the other end of the thirteenth resistor, the other end of the sixteenth resistor, the other end of the eighteenth resistor, the other end of the nineteenth resistor, the other end of the twentieth resistor and the grounding terminal are connected;
The energy storage distribution unit comprises a fourth resistor, a fifth resistor, a twenty-first resistor, a twenty-second resistor, a sixteenth inverter, a seventeenth digital potentiometer, an eighteenth digital potentiometer, a nineteenth operational amplifier, a fourth triode, a fifth connector, a sixth connection end, a seventh connector and a first relay, wherein a collector of the fourth triode, a fourth pin of the seventeenth digital potentiometer, a first pin of the eighteenth digital potentiometer are connected with a power supply, a base of the fourth triode is connected with one end of the twenty-first resistor, an input end of the sixteenth inverter is connected with the other end of the twenty-first resistor, the other end of the twenty-first resistor is connected with the sixth connection end, an emitter of the fourth triode is connected with one end of a coil of the first relay, one end of the first relay is connected with the fifth connector, the other end of the first relay is connected with a twelfth pin of the seventeenth digital potentiometer, a third pin of the seventeenth digital potentiometer is connected with one end of the twenty-second resistor, an output end of the sixteenth inverter is connected with the output end of the seventeenth digital potentiometer, the seventeenth pin of the seventeenth digital potentiometer is connected with the fifth resistor, an output end of the ninth operational amplifier is connected with the output end of the nineteenth resistor, the nineteenth resistor is connected with the inverting end of the nineteenth operational amplifier, the base of the nineteenth digital potentiometer is connected with the seventeenth pin of the seventeenth resistor, the seventeenth pin is connected with the seventeenth pin of the seventeenth resistor, the seventeenth resistor is connected with the seventeenth pin, the digital potentiometer is connected with the seventeenth pin, the digital potentiometer is connected with the seventeenth pin of the seventeenth resistor, the seventeenth resistor, the battery cathode is connected with the grounding end;
The energy storage regulation and control unit further comprises a twenty-third resistor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor and a twenty-eighth resistor, one end of the twenty-eighth resistor is connected with a power supply, the other end of the twenty-eighth resistor is connected with a first gear switch, one end of the twenty-third resistor is connected with the first gear switch, the other end of the twenty-third resistor is connected with one end of the twenty-fourth resistor and the first gear switch, the other end of the twenty-fourth resistor is connected with one end of the twenty-fifth resistor and the first gear switch, the other end of the twenty-fifth resistor is connected with one end of the twenty-sixth resistor and the first gear switch, the other end of the twenty-sixth resistor is connected with one end of the twenty-seventh resistor and the first gear switch, and the other end of the twenty-seventh resistor is connected with the first gear switch and a fourth connector.
2. The energy control system of the charging pile according to claim 1, wherein the energy storage regulation unit further comprises a fourteenth resistor and a fifteenth resistor, one end of the fourteenth resistor is connected with a power supply, the other end of the fourteenth resistor is connected with one end of the fifteenth resistor and the same-phase end of the fourth operational amplifier, and the other end of the fifteenth resistor is connected with a ground end.
3. The charging pile energy control system according to claim 1, wherein the alternating current provided by the power supply module is three-phase alternating current, and the rectifying module is three-phase half-bridge rectifying.
4. A charging pile energy control method, which is characterized by being applied to the charging pile energy control system according to any one of claims 1-3, comprising the following steps,
S1: the maximum supply current available from the current grid is obtained,
S2: generating a reference distribution signal according to the number of batteries in the charging pile and the maximum supply current,
S3: acquiring the current energy storage parameters of the battery and the actual number of the charging piles to be used, adjusting the voltage of the reference distribution signal,
S4: the actual charging current parameter of the battery is controlled at the maximum supply current that can be provided in dependence on the voltage parameter of the reference distribution signal.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054791A (en) * | 2017-11-21 | 2018-05-18 | 深圳市沃特玛电池有限公司 | Energy-storage battery equalizing charge system |
| CN113715660A (en) * | 2021-10-09 | 2021-11-30 | 深圳市中蓝绿源科技有限公司 | Intelligent charging pile |
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| US11958372B2 (en) * | 2019-11-26 | 2024-04-16 | Fermata Energy Llc | Device for bi-directional power conversion and charging for use with electric vehicles |
| CN114597994A (en) * | 2022-03-03 | 2022-06-07 | 苏州汇川联合动力***有限公司 | Equalizing circuit, charging circuit and vehicle-mounted charger |
| CN219446767U (en) * | 2023-04-27 | 2023-08-01 | 南阳金冠智能开关有限公司 | Control circuit of energy storage charging pile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054791A (en) * | 2017-11-21 | 2018-05-18 | 深圳市沃特玛电池有限公司 | Energy-storage battery equalizing charge system |
| CN113715660A (en) * | 2021-10-09 | 2021-11-30 | 深圳市中蓝绿源科技有限公司 | Intelligent charging pile |
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