WO2023125511A1 - 电源管理系统、换电站及其电源管理方法、装置 - Google Patents

电源管理系统、换电站及其电源管理方法、装置 Download PDF

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Publication number
WO2023125511A1
WO2023125511A1 PCT/CN2022/142256 CN2022142256W WO2023125511A1 WO 2023125511 A1 WO2023125511 A1 WO 2023125511A1 CN 2022142256 W CN2022142256 W CN 2022142256W WO 2023125511 A1 WO2023125511 A1 WO 2023125511A1
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WIPO (PCT)
Prior art keywords
power
rechargeable battery
power supply
supply
charger
Prior art date
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PCT/CN2022/142256
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English (en)
French (fr)
Inventor
张建平
赵政浩
陈志民
陆文成
Original Assignee
奥动新能源汽车科技有限公司
上海电巴新能源科技有限公司
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Application filed by 奥动新能源汽车科技有限公司, 上海电巴新能源科技有限公司 filed Critical 奥动新能源汽车科技有限公司
Publication of WO2023125511A1 publication Critical patent/WO2023125511A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Definitions

  • the invention relates to a power management system, a power exchange station and a power management method and device thereof.
  • the management and control equipment (including the control cabinet in the station, the power exchange equipment, the communication cabinet, the monitoring and communication equipment, etc., and other necessary equipment for power exchange) are used to realize the charging and exchange of electric vehicles and the storage of battery exchange data.
  • the mains supply power to the management and control equipment. If the mains power fails, the management and control equipment will not be able to charge and replace the electric vehicles, and may also cause the loss of battery replacement data, resulting in losses.
  • the present invention provides a power management system, a power exchange station and its power management method and device, which can use the rechargeable battery in the exchange station to supply power to the electric equipment when the incoming power supply stops supplying power to the electric equipment in the exchange station, maintaining Normal operation of the power station.
  • a power management system which is applied to a power exchange station, and is used to supply power to electrical equipment in the power exchange station;
  • the power management system includes a controller, a bidirectional charger and a first rechargeable battery, the A bidirectional charger is electrically connected to the controller and the first rechargeable battery, respectively;
  • the controller When the incoming power supply of the substation stops supplying power to the electrical equipment, the controller sends a power supply request command to the bidirectional charger;
  • the two-way charger When receiving the power supply request instruction, the two-way charger releases the electric energy of the first rechargeable battery connected to the two-way charger to supply power to the electric device.
  • the two-way charger can release the electric energy of the first rechargeable battery to supply power to the electrical equipment.
  • the electrical equipment in the power station supplies power, maintains the normal operation of the swap station, and provides users with reliable power swap services.
  • the power management system further includes a switch; the switch is respectively connected to the bidirectional charger, the electrical equipment and the incoming power supply,
  • the bidirectional charger sends a trip signal to the switch after receiving the power supply request instruction, and the switch disconnects the connection between the electrical equipment and the incoming power supply after receiving the trip signal.
  • the two-way charger sends a trip signal to the switch after receiving the power supply request command to disconnect the electrical equipment from the incoming power supply, so as to facilitate the smooth connection between the two-way charger and the electrical equipment.
  • the switch disconnects the electrical equipment from the incoming power supply, it feeds back an off-grid confirmation signal to the two-way charger, and the two-way charger receives the off-grid confirmation signal. After the signal is released, the electric energy of the first rechargeable battery connected to the two-way charger is released to supply power to the electric equipment.
  • the two-way charger controls the two-way charger to supply power to the electrical equipment when it receives the off-grid confirmation signal, instead of supplying power to the electrical equipment after receiving the power supply request command, so as to avoid the electrical equipment from being connected to the power supply.
  • the invalid connection between the two-way charger and the electrical equipment caused by the line power supply not being disconnected.
  • the power management system further includes an uninterruptible power supply, the uninterruptible power supply is respectively connected to the incoming power supply and the bidirectional charger, and when the incoming power supply stops supplying power to the electric device , the uninterruptible power supply supplies power to the bidirectional charger.
  • the uninterruptible power supply UPS Uninterruptible Power Supply
  • UPS Uninterruptible Power Supply
  • the controller pre-stores the power supply priority of each of the electric devices, and when the power supply capacity of the first rechargeable battery does not meet the power requirements of all electric devices, the controller controls the The two-way charger supplies power to the electric devices whose power supply priority is higher.
  • the power management system includes a plurality of the first rechargeable batteries, and when the current power supply capacity of the first rechargeable batteries does not meet the power demand of the electric device, the controller detects whether There is the first rechargeable battery with the remaining power greater than the power threshold; if there is the first rechargeable battery with the remaining power greater than the power threshold, switch the first rechargeable battery with the remaining power greater than the power threshold as the electric device powered by.
  • the power management system includes a plurality of bidirectional chargers, and each charger corresponds to a first rechargeable battery.
  • a plurality of two-way chargers are set in one-to-one correspondence with the plurality of first rechargeable batteries, which can improve the switching efficiency among the plurality of first rechargeable batteries, so as to better meet the power consumption demand of the electric equipment.
  • a power exchange station which includes a one-way charger, a second rechargeable battery, and the power management system described in any one of the above, the second rechargeable battery and the one-way charger connected, the one-way charger and the two-way charger are connected in parallel to the incoming power supply.
  • the power supply for the electrical equipment in the swap station can still maintain the normal operation of the swap station, providing users with reliable power swap services.
  • the controller is further configured to detect whether there is a second rechargeable battery with a remaining power greater than a power threshold when the power supply capability of the first rechargeable battery does not meet the power demand of the electric device;
  • the second rechargeable battery can prolong the power supply time for the electric equipment, waiting for the incoming power supply to restore the power supply for the electric equipment.
  • a power management method of a power exchange station which is applied to any one of the above-mentioned power exchange stations, and the power management method of the power exchange station includes the following steps:
  • the bidirectional charger is controlled to release the electric energy of the first rechargeable battery connected to it to supply power to the electrical equipment.
  • the two-way charger can release the electric energy of the first rechargeable battery to supply power to the electrical equipment.
  • the electrical equipment in the power station supplies power, maintains the normal operation of the swap station, and provides users with reliable power swap services.
  • step of controlling the two-way charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric device further includes:
  • the switching switch After receiving the tripping signal, the switching switch disconnects the electrical equipment from the incoming power supply.
  • the two-way charger sends a trip signal to the switch after receiving the power supply request command to disconnect the electrical equipment from the incoming power supply, so as to facilitate the smooth connection between the two-way charger and the electrical equipment.
  • the step further includes:
  • the two-way charger After receiving the off-grid confirmation signal, the two-way charger executes the step of releasing the electric energy of the first rechargeable battery connected to the two-way charger to supply power to the electrical equipment.
  • the two-way charger controls the two-way charger to supply power to the electrical equipment when it receives the off-grid confirmation signal, instead of supplying power to the electrical equipment after receiving the power supply request command, so as to avoid the electrical equipment from being connected to the power supply.
  • the invalid connection between the two-way charger and the electrical equipment caused by the line power supply not being disconnected.
  • step of controlling the two-way charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric device further includes:
  • the uninterruptible power supply is triggered to supply power to the bidirectional charger.
  • the uninterruptible power supply UPS can ensure the normal communication and use of the two-way charger, and avoid the failure of the two-way charger to supply power to the electrical equipment due to the failure of the two-way charger.
  • step of controlling the two-way charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric device further includes:
  • step of controlling the two-way charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric device further includes:
  • step of controlling the two-way charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric device further includes:
  • the second rechargeable battery can prolong the power supply time for the electric equipment, waiting for the incoming power supply to restore the power supply for the electric equipment.
  • a power management device for a power exchange station which is applied to the power exchange station described in any one of the above, and the power management device includes:
  • the detection module is used to detect whether the incoming power supply stops supplying power to the electrical equipment in the swap station;
  • the control module is used to control the two-way charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric equipment when the incoming power supply stops supplying power to the electric equipment in the substation.
  • the two-way charger can release the electric energy of the first rechargeable battery to supply power to the electrical equipment.
  • the electrical equipment in the power station supplies power, maintains the normal operation of the swap station, and provides users with reliable power swap services.
  • an electronic device including a memory, a processor, and a computer program stored on the memory and operable on the processor.
  • the processor executes the computer program, it realizes the power supply described in any one of the above Management method.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the power management method described in any one of the foregoing is implemented.
  • the positive and progressive effect of the present invention lies in: in the embodiment of the present invention, when the incoming power supply stops supplying power to the electric equipment, the two-way charger can release the electric energy of the first rechargeable battery to supply power to the electric equipment, that is, in the whole station of the power station In the event of a power outage, it can still supply power to the electrical equipment in the swap station, maintain the normal operation of the swap station, and provide users with reliable power swap services.
  • FIG. 1 is a block diagram of a power management system provided by an exemplary embodiment of the present invention
  • FIG. 2 is a block diagram of another power management system provided by an exemplary embodiment of the present invention.
  • Fig. 3 is a schematic structural diagram of a power station provided by an embodiment of the present invention.
  • Fig. 4 is a flow chart of a power management method of a battery swapping station provided by an exemplary embodiment of the present invention
  • Fig. 5 is a schematic diagram of modules of a power management device of a power exchange station provided by an exemplary embodiment of the present invention
  • Fig. 6 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present invention.
  • FIG. 1 is a schematic diagram of modules of a power management system provided by an exemplary embodiment of the present invention.
  • the power management system is applied to a power exchange station and is used to supply power to electrical equipment in the power exchange station; the power management system includes a controller 11,
  • the bidirectional charger 12 and the first rechargeable battery 13 are electrically connected to the controller 11 and the first rechargeable battery 13 respectively.
  • the bidirectional charger 12 can switch between the charging mode and the discharging mode. When in the charging mode, the bidirectional charger 12 can charge the first rechargeable battery 13. When in the discharging mode, the bidirectional charger 12 can release the power of the first rechargeable battery 13. The electrical energy supplies power to electrical equipment.
  • the bidirectional charger 12 includes a rectifier circuit and an inverter circuit. By controlling the PWM (Pulse Width Modulation, pulse width modulation technology) of each switching device in the rectifier circuit and the inverter circuit, the mode switching of the bidirectional charger 12 can be realized. The process will not be repeated here.
  • PWM Pulse Width Modulation, pulse width modulation technology
  • Electrical equipment can include, but is not limited to, control cabinets in the station, power exchange equipment, battery transfer equipment, communication cabinets, monitoring and communication equipment, and other necessary equipment for power exchange.
  • the two-way charger 12 stores the electric energy of the incoming power in the first rechargeable battery 13 to ensure that the remaining power of the first rechargeable battery 13 is greater than the power threshold, so that it has When the incoming power supply stops supplying power to the electrical equipment, it can supply power to the electrical equipment to ensure the normal operation of the power station.
  • the incoming power supply may include, but is not limited to, a power grid (providing mains power) and a micro-grid.
  • the power threshold can be set according to the actual situation.
  • the controller 11 sends a power supply request command to the bidirectional charger 12 .
  • the two-way charger 12 receives the power supply request instruction, it releases the electric energy of the first rechargeable battery 13 connected to the two-way charger 12 to supply power to the electric equipment.
  • the two-way charger when the incoming power supply stops supplying power to the electrical equipment, the two-way charger can release the electric energy of the first rechargeable battery to supply power to the electrical equipment, that is, in the case of a power failure of the entire station, the two-way charger can still Provide power to the electrical equipment in the swap station, maintain the normal operation of the swap station, and provide users with reliable power swap services.
  • the number of two-way chargers in the power management system is not limited to one, and the number of two-way chargers can be set according to actual needs, and each two-way charger corresponds to a first rechargeable battery.
  • Set multiple bidirectional chargers which can be flexibly configured to better meet the power consumption needs of electric equipment.
  • the power management system further includes a switch 14; the switch 14 is respectively connected to the bidirectional charger 12, the electric device 2 and the incoming power supply 3, and after the bidirectional charger 12 receives the power supply request instruction A trip signal is sent to the switch 14, and the switch 14 disconnects the connection between the electrical equipment 2 and the incoming power supply 3 after receiving the trip signal.
  • the bidirectional charger 12 After receiving the power supply request command, the bidirectional charger 12 sends a trip signal to the switch to disconnect the electrical equipment from the incoming power supply, so that the bidirectional charger 12 can be smoothly connected to the electrical equipment.
  • the off-grid confirmation signal is fed back to the two-way charger 12, and the two-way charger 12 releases the two-way charger 12 after receiving the off-grid confirmation signal.
  • the electric energy of the connected first rechargeable battery 13 supplies power to the electrical equipment.
  • the two-way charger 12 When the two-way charger 12 receives the off-grid confirmation signal, it controls the two-way charger 12 to supply power to the electric equipment instead of supplying power to the electric equipment after receiving the power supply request command, so that the electric equipment and the incoming power supply can be avoided.
  • the invalid connection between the two-way charger 12 and the electric device caused by not disconnecting the connection.
  • the power management system also includes an uninterruptible power supply (UPS), the uninterruptible power supply is respectively connected to the incoming power supply and the bidirectional charger, and when the incoming power supply stops supplying power to the electrical equipment, the uninterruptible power supply supplies power to the bidirectional charger .
  • UPS uninterruptible power supply
  • the uninterruptible power supply UPS can ensure the normal communication and use of the two-way charger, and prevent the two-way charger 12 from losing power and unable to communicate normally, resulting in failure to supply power to the electrical equipment.
  • the controller pre-stores the power supply priority of each electric device, and when the power supply capacity of the first rechargeable battery does not meet the power demand of all electric devices, the controller controls the two-way charger to sort the power supply priority The front part is powered by electrical equipment. Therefore, when the power supply capacity of the rechargeable battery is not enough to supply power to all electrical equipment, the important loads are given priority to supply power to ensure that the important loads can operate normally.
  • the priority of the electrical equipment included in the power exchange station from high to low is: control cabinet, communication cabinet, power exchange equipment, battery transfer equipment, monitoring and communication equipment, lighting equipment, gates, exhaust fans, industrial air conditioners , billboard
  • the controller 11 controls the two-way charger 12 to provide the control cabinet, communication cabinets, power replacement equipment, battery transfer equipment, monitoring and communication equipment, and no longer supply power to lighting equipment, gates, exhaust fans, industrial air conditioners, and billboards.
  • Power supply requirements can be characterized by, but not limited to, the following parameters: voltage, power, current, power supply duration, etc.
  • the power supply capability can be characterized by, but not limited to, the following parameters: remaining power, output power, output current, output voltage, and the like.
  • the power management system includes a plurality of first rechargeable batteries 13.
  • the controller 11 detects whether there is a remaining power greater than the power The first rechargeable battery 13 with a threshold value; if there is a first rechargeable battery 13 with a remaining power greater than the power threshold, switch the first rechargeable battery 13 with a remaining power greater than the power threshold to supply power to the electric device.
  • the power threshold can be set by itself according to the actual situation.
  • Fig. 3 is a schematic structural diagram of a power exchange station provided by an embodiment of the present invention.
  • the power exchange station includes a one-way charger, a second rechargeable battery, and a power management system provided by any of the above-mentioned embodiments.
  • the second rechargeable battery and the one-way charging The one-way charger and the two-way charger are connected in parallel to the incoming power supply.
  • the power exchange station also includes control cabinets, power exchange equipment, battery transfer equipment, communication cabinets, monitoring and communication equipment, lighting equipment and other electrical equipment and UPS.
  • the second rechargeable battery is a rechargeable battery for being installed on the electric vehicle to provide electric energy for the electric vehicle, and the one-way charger is connected to the incoming power supply to charge the second rechargeable battery.
  • the incoming power supply may include, but is not limited to, a power grid (providing mains power) and a micro-grid.
  • bidirectional chargers and first rechargeable batteries in the battery swapping station is not limited to one shown in the figure, and multiple bidirectional chargers and first rechargeable batteries can also be provided, and each bidirectional charger corresponds to a first rechargeable battery.
  • Rechargeable Battery Rechargeable Battery
  • the controller sends a power supply request command to the two-way charger.
  • the two-way charger After receiving the power supply request command, the two-way charger sends a trip signal to the switch, and the switch automatically turns off after receiving the trip signal. Open the connection between the electrical equipment and the two-way charger and the incoming power supply or issue a trip prompt to remind the operation and maintenance personnel to disconnect the electrical equipment and the two-way charger and the incoming power supply, and switch the switch to feedback the off-grid confirmation signal after disconnection
  • the two-way charger releases the electric energy of the first rechargeable battery connected to the two-way charger to supply power to the electrical equipment.
  • the first rechargeable battery connected to the two-way charger is used as a power supply to provide power for the work of at least one of the electrical equipment in the power exchange station, such as the control cabinet, power exchange equipment, communication cabinet, UPS, monitoring and communication equipment, and lighting equipment. , forming a loop, and the substation enters the emergency backup state.
  • the two-way charger and the electrical equipment are disconnected from the incoming power supply and also disconnected from the one-way charger, and the electric energy of the first rechargeable battery is only used to supply power to the electrical equipment, thus contributing In order to prolong the power supply time of the electric equipment, except for stopping charging the second rechargeable battery in the power station, other equipments are working normally, and the power exchange station is in normal operation.
  • the controller sends a stop power supply command to the two-way charger, and the two-way charger stops supplying power to the electric equipment when receiving the stop power supply command , and send a closing signal to the switch, and the switch will automatically close after receiving the closing signal to use the connection between the electrical equipment and the incoming power supply or send a closing prompt to remind the operation and maintenance personnel to close the switch.
  • the emergency power backup function of the swap station is turned off, the incoming power supply supplies power to the electrical equipment in the swap station, and the swap station resumes normal operation.
  • the bidirectional charger can switch to the charging mode to charge the first rechargeable battery.
  • the controller is further configured to detect whether there is a second rechargeable battery with a remaining power greater than a power threshold when the power supply capability of the first rechargeable battery does not meet the power demand of the electric device. If there is a second rechargeable battery with a remaining power greater than the power threshold, switch the second rechargeable battery to supply power to the electric device.
  • the power threshold can be set by itself according to the actual situation.
  • the power threshold corresponding to the second rechargeable battery may be the same as or different from the power threshold corresponding to the first rechargeable battery.
  • the controller when the controller determines that the power supply capacity of the first rechargeable battery does not meet the power demand of the electric device and there is a second rechargeable battery with a remaining power greater than the power threshold, the controller sends a switching prompt to remind the operation and maintenance personnel
  • the bidirectional charger is switched to be connected to the second rechargeable battery whose remaining power is greater than the power threshold.
  • the replacement battery when the power supply capacity of the first rechargeable battery does not meet the power demand of the electric equipment, the replacement battery is used to supply power for the electric equipment, which can prolong the power supply time of the electric equipment and wait for the incoming power supply. Restore power to electrical equipment.
  • first control the second rechargeable battery with a remaining power greater than the power threshold and the one-way Disconnect the charger then transfer it to the location where the two-way charger is located through the battery replacement equipment or battery transfer equipment, and then control it to connect with the two-way charger, so that the two-way charger releases the second rechargeable battery to the electric device powered by.
  • a backup bidirectional charger is set in advance.
  • the second rechargeable battery When the remaining power is greater than the second rechargeable battery with a power threshold, disconnect the second rechargeable battery from the one-way charger and transfer it to the position where the backup two-way charger is located, and then connect the second rechargeable battery to the backup two-way charger. After the second rechargeable battery is connected to the backup two-way charger and begins to discharge, disconnect the first rechargeable battery from the two-way charger, or directly switch the two-way charger connected to the first rechargeable battery to charge the first rechargeable battery .
  • the controller also monitors the status of the first rechargeable battery and the second rechargeable battery in the swap station, and if thermal runaway occurs in the first rechargeable battery and/or the second rechargeable battery, thermal runaway will occur
  • the first rechargeable battery and/or the second rechargeable battery are determined to be the problem battery, and the problem battery is taken out, so as to avoid more serious losses of the problem battery due to thermal runaway in the replacement station under special circumstances.
  • FIG. 4 is a flow chart of a power management method of a battery swapping station provided by an exemplary embodiment of the present invention, which is applied to the battery swapping station provided by any of the above embodiments.
  • the power management process will be described below with reference to FIGS. 1 to 3 .
  • the power management method of the power exchange station includes the following steps:
  • Step 401 detecting whether the incoming power supply stops supplying power to the electrical equipment in the power exchange station.
  • Step 402 When the incoming power supply stops supplying power to the electric equipment in the power exchange station, control the bidirectional charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric equipment.
  • the two-way charger when the incoming power supply stops supplying power to the electrical equipment, the two-way charger can release the electric energy of the first rechargeable battery to supply power to the electrical equipment, that is, in the case of a power failure of the entire station, the two-way charger can still Provide power to the electrical equipment in the swap station, maintain the normal operation of the swap station, and provide users with reliable power swap services.
  • the step of controlling the two-way charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric equipment also includes: triggering the two-way charger to send a trip signal to the switching switch; after receiving the trip signal, switching the switch Disconnect electrical equipment from incoming power.
  • the bidirectional charger after receiving the power supply request command, the bidirectional charger sends a trip signal to the switch to disconnect the electrical equipment from the incoming power supply, so as to facilitate the smooth connection between the bidirectional charger and the electrical equipment. Moreover, when the two-way charger and the electrical equipment are disconnected from the incoming power supply, they are also disconnected from the one-way charger, and the electric energy of the first rechargeable battery is only used to supply power to the electrical equipment, thereby helping to extend the power supply to the electrical equipment. duration.
  • the switch after the step of switching the switch to disconnect the electrical equipment from the incoming power supply, it further includes: triggering the switch to send an off-grid confirmation signal to the two-way charger; after receiving the off-grid confirmation signal, the two-way charger executes A step of releasing the electric energy of the first rechargeable battery connected to the bidirectional charger to supply power to the electric equipment.
  • the two-way charger only controls the two-way charger to supply power to the electric device when it receives the off-grid confirmation signal, instead of supplying power to the electric device after receiving the power supply request instruction, so that the electric device can be avoided
  • the step before the step of controlling the two-way charger to release the electric energy of the first rechargeable battery connected thereto to supply power to the electric device, the step further includes: triggering an uninterruptible power supply to supply power to the two-way charger.
  • the uninterruptible power supply UPS can ensure the normal communication and use of the two-way charger, and prevent the two-way charger from being powered off and unable to communicate normally, resulting in failure to supply power to the electric equipment.
  • the step of controlling the two-way charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric device further includes: detecting whether the power supply capability of the first rechargeable battery meets the power demand of all electric devices; If the power supply capacity of the first rechargeable battery does not meet the power consumption demands of all electric equipment, then obtain the pre-stored power supply priority of each electric equipment; control the two-way charger to supply power to some electric equipment with higher power supply priority.
  • the important electrical equipment when the power supply capacity of the rechargeable battery is not enough to supply power to all the electrical equipment, the important electrical equipment is given priority to supply power to ensure the normal operation of the important electrical equipment.
  • the step of controlling the two-way charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric device further includes: detecting whether the current power supply capacity of the first rechargeable battery meets the power demand of the electric device ; If the current power supply capacity of the first rechargeable battery does not meet the power demand of the electric device, detect whether there is a first rechargeable battery with a remaining power greater than the power threshold; if there is a first rechargeable battery with a remaining power greater than the power threshold, then switch The first rechargeable battery whose remaining power is greater than the power threshold provides power for the electric device.
  • the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric device further includes: detecting whether the power supply capability of the first rechargeable battery meets the power demand of the electric device; The power supply capacity of the first rechargeable battery does not meet the power demand of the electric device, and detects whether there is a second rechargeable battery with a remaining power greater than the power threshold; if there is a second rechargeable battery with a remaining power greater than the power threshold, switch the second rechargeable battery Supply power to electrical equipment.
  • the second rechargeable battery can prolong the duration of supplying power to the electric device, and wait for the incoming power supply to resume supplying power to the electric device.
  • the present invention also provides an embodiment of a power management device for the power exchange station.
  • Fig. 5 is a block diagram of a power management device of a power exchange station provided by an exemplary embodiment of the present invention, which is applied to any one of the above-mentioned power exchange stations, and the power management device includes:
  • the detection module 51 is used to detect whether the incoming power supply stops supplying power to the electrical equipment in the power exchange station;
  • the control module 52 is used to control the bidirectional charger to release the electric energy of the first rechargeable battery connected to it to supply power to the electric equipment in the substation when the incoming power supply stops supplying power to the electric equipment in the substation.
  • the power management device further includes:
  • a trigger module configured to trigger the bidirectional charger to send a trip signal to the switch
  • the receiving module is configured to, after receiving the trip signal, disconnect the switch from the electrical equipment to the incoming power supply.
  • the trigger module is also used to trigger the switch to send an off-grid confirmation signal to the bidirectional charger;
  • the two-way charger After receiving the off-grid confirmation signal, the two-way charger executes the step of releasing the electric energy of the first rechargeable battery connected to the two-way charger to supply power to the electrical equipment.
  • the trigger module is also used to trigger the uninterruptible power supply to supply power to the bidirectional charger.
  • a detection module configured to detect whether the power supply capacity of the first rechargeable battery meets the power consumption requirements of all electric equipment
  • the control module to control the two-way charger to supply power to the Power consumers described in the top priority section.
  • a detection module configured to detect whether the current power supply capacity of the first rechargeable battery meets the power demand of the electric device; if the current power supply capacity of the first rechargeable battery does not meet the power demand of the electric device Detecting whether there is the first rechargeable battery with the remaining power greater than the power threshold; if there is the first rechargeable battery with the remaining power greater than the power threshold, then calling the control module to switch the first rechargeable battery with the remaining power greater than the power threshold supply power to the electric device.
  • a detection module configured to detect whether the power supply capacity of the first rechargeable battery meets the power demand of the electric device; if the power supply capacity of the first rechargeable battery does not meet the power demand of the electric device, detect whether there is A second rechargeable battery with a remaining power greater than the power threshold; if there is a second rechargeable battery with a remaining power greater than the power threshold, call the control module to switch the second rechargeable battery to supply power to the electric device.
  • the device embodiment since it basically corresponds to the method embodiment, for related parts, please refer to the part description of the method embodiment.
  • the device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of the present invention. It can be understood and implemented by those skilled in the art without creative effort.
  • Fig. 6 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present invention, and shows a block diagram of an exemplary electronic device 60 suitable for implementing the embodiments of the present invention.
  • the electronic device 60 shown in FIG. 6 is only an example, and should not limit the functions and scope of use of this embodiment of the present invention.
  • the electronic device 60 may be in the form of a general-purpose computing device, for example, it may be a server device.
  • Components of the electronic device 60 may include, but are not limited to: at least one processor 61 , at least one memory 62 , and a bus 63 connecting different system components (including the memory 62 and the processor 61 ).
  • the bus 63 includes a data bus, an address bus and a control bus.
  • the memory 62 may include a volatile memory, such as a random access memory (RAM) 621 and/or a cache memory 622 , and may further include a read only memory (ROM) 623 .
  • RAM random access memory
  • ROM read only memory
  • Memory 62 may also include a program tool 625 (or utility) having a set (at least one) of program modules 624, such program modules 624 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include the realization of the network environment.
  • program tool 625 or utility
  • program modules 624 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include the realization of the network environment.
  • the processor 61 executes various functional applications and data processing by running computer programs stored in the memory 62 , such as the methods provided in any of the above-mentioned embodiments.
  • Electronic device 60 may also communicate with one or more external devices 64 (eg, keyboards, pointing devices, etc.). Such communication may occur through input/output (I/O) interface 65 . Also, the model-generating electronic device 60 may also communicate with one or more networks (eg, a local area network (LAN), a wide area network (WAN) and/or a public network such as the Internet) via a network adapter 66 . As shown, network adapter 66 communicates with other modules of model generation electronics 60 via bus 63 .
  • networks eg, a local area network (LAN), a wide area network (WAN) and/or a public network such as the Internet
  • model generation electronics 60 including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID ( disk array) systems, tape drives, and data backup storage systems.
  • An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the method provided in any of the foregoing embodiments is implemented.
  • the readable storage medium may more specifically include but not limited to: portable disk, hard disk, random access memory, read-only memory, erasable programmable read-only memory, optical storage device, magnetic storage device or any of the above-mentioned the right combination.
  • the embodiment of the present invention can also be implemented in the form of a program product, which includes program code, and when the program product runs on the terminal device, the program code is used to make the terminal device Execute the method for realizing any one of the foregoing embodiments.
  • the program code for executing the present invention can be written in any combination of one or more programming languages, and the program code can be completely executed on the user equipment, partially executed on the user equipment, or used as an independent
  • the package executes, partly on the user device and partly on the remote device, or entirely on the remote device.

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Abstract

一种电源管理系统、换电站及其电源管理方法、装置。电源管理系统应用于换电站，用于为所述换电站内的用电设备（2）供电；电源管理系统包括控制器（11）、双向充电机（12）和第一充电电池（13），双向充电机（12）分别与控制器（11）和第一充电电池（13）电连接；当换电站的进线电源（3）停止给用电设备（2）供电时，控制器（11）发送供电请求指令至双向充电机（12）；双向充电机（12）在接收到所述供电请求指令时，释放与双向充电机（12）连接的第一充电电池（13）的电能给用电设备（2）供电。从而在进线电源（3）停止给用电设备（2）供电时，依然能给换电站内的用电设备（2）供电，维持换电站正常运营。

Description

电源管理系统、换电站及其电源管理方法、装置
本申请要求申请日为2021/12/30的中国专利申请2021116591656的优先权。本申请引用上述中国专利申请的全文。
技术领域
本发明涉及一种电源管理系统、换电站及其电源管理方法、装置。
背景技术
换电站中通过管控设备(包括站内控制柜、换电设备、通讯柜、监控通讯设备等及其他换电所需必要设备)实现为电动汽车充换电以及换电数据保管，现有技术中通过市电给管控设备供电，若市电失电，会导致管控设备无法为电动汽车充换电，还可能造成换电数据的丢失，造成损失。
发明内容
本发明提供一种电源管理系统、换电站及其电源管理方法、装置，能够在进线电源停止给换电站内的用电设备供电时，利用换电站内的充电电池给用电设备供电，维持换电站的正常运营。
本发明是通过下述技术方案来解决上述技术问题：
第一方面，提供一种电源管理系统，应用于换电站，用于为所述换电站内的用电设备供电；所述电源管理系统包括控制器、双向充电机和第一充电电池，所述双向充电机分别与所述控制器和所述第一充电电池电连接；
当换电站的进线电源停止给所述用电设备供电时，所述控制器发送供电请求指令至所述双向充电机；
所述双向充电机在接收到所述供电请求指令时，释放与所述双向充电机连接的第一充电电池的电能给所述用电设备供电。
本方案中，在进线电源停止给用电设备供电时，双向充电机能够释放第一充电电池的电能给用电设备供电，也即在换电站整站断电的情况下，依然能给换电站内的用电设备供电，维持换电站正常运营，为用户提供可靠的换电服务。
可选地，所述电源管理系统还包括切换开关；所述切换开关分别与所述双向充电机、所述用电设备及所述进线电源连接，
所述双向充电机接收到所述供电请求指令后向所述切换开关发送跳闸信号，所述切换开关在接收到所述跳闸信号后断开所述用电设备与所述进线电源的连接。
本方案中，双向充电机接收到供电请求指令后向切换开关发送跳闸信号，以断开用电设备与进线电源的连接，从而便于双向充电机能与用电设备顺利连接。
可选地，所述切换开关在断开所述用电设备与所述进线电源的连接后，反馈离网确认信号至所述双向充电机，所述双向充电机接收到所述离网确认信号后释放与所述双向充电机连接的第一充电电池的电能给所述用电设备供电。
本方案中，双向充电机在接收到离网确认信号时，才控制双向充电机给用电设备供电供电，而不是接收到供电请求指令即给用电设备供电，从而可以避免用电设备与进线电源未断开连接导致的双向充电机与用电设备的无效连接。
可选地，所述电源管理系统还包括不间断电源，所述不间断电源分别与所述进线电源和所述双向充电机连接，当所述进线电源停止给所述用电设备供电时，所述不间断电源给所述双向充电机供电。
本方案中，不间断电源UPS(Uninterruptible Power Supply)能够确保双向充电机的正常通信和使用，避免双向充电机失电无法正常通信而导致无法给用电设备供电。
可选地，所述控制器内预存各所述用电设备的供电优先级，当所述第一充电电池的供电能力不满足所有用电设备的用电需求时，所述控制器控制所述双向充电机给所述供电优先级排序靠前的部分所述用电设备供电。
本方案中，在充电电池的供电能力不足够为所有的用电设备供电时，优先给重要的负载供电，确保重要的负载能够正常运行。
可选地，所述电源管理系统包括多个所述第一充电电池，在当前的所述第一充电电池的供电能力不满足所述用电设备的用电需求时，所述控制器检测是否存在剩余电量大于电量阈值的所述第一充电电池；若存在剩余电量大于电量阈值的所述第一充电电池，则切换该剩余电量大于电量阈值的所述第一充电电池为所述用电设备供电。
本方案中，通过设置多个第一充电电池可以延长给用电设备供电的时长，等待进线电源恢复给用电设备供电。
可选地，所述电源管理系统包括多个双向充电机，各个充电机均对应一个第一充电电池。
本方案中，设置多个双向充电机分别与多个第一充电电池一一对应，可以提高多个第一充电电池之间的切换效率，以更好的满足用电设备的用电需求。
第二方面，提供一种换电站，所述换电站包括单向充电机、第二充电电池，以及上述 任一项所述的电源管理系统，所述第二充电电池与所述单向充电机连接，所述单向充电机与所述双向充电机并联连接于进线电源。
该换电站中，在进线电源停止给用电设备供电时，换电站内的用电设备供电依然能够维持换电站正常运营，为用户提供可靠的换电服务。
可选地，所述控制器还用于在所述第一充电电池的供电能力不满足所述用电设备的用电需求时，检测是否存在剩余电量大于电量阈值的第二充电电池；
若存在剩余电量大于电量阈值的第二充电电池，则切换所述第二充电电池给所述用电设备供电。
本方案中，第二充电电池可以延长给用电设备供电的时长，等待进线电源恢复给用电设备供电。
第三方面，提供一种换电站的电源管理方法，应用于上述任一项所述的换电站，所述换电站的电源管理方法包括以下步骤：
检测进线电源是否停止给换电站内的用电设备供电；
当进线电源停止给换电站内的用电设备供电时，控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电。
本方案中，在进线电源停止给用电设备供电时，双向充电机能够释放第一充电电池的电能给用电设备供电，也即在换电站整站断电的情况下，依然能给换电站内的用电设备供电，维持换电站正常运营，为用户提供可靠的换电服务。
可选地，所述控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电的步骤之前还包括：
触发所述双向充电机发送跳闸信号给切换开关；
接收到所述跳闸信号后，所述切换开关断开所述用电设备与所述进线电源的连接。
本方案中，双向充电机接收到供电请求指令后向切换开关发送跳闸信号，以断开用电设备与进线电源的连接，从而便于双向充电机能与用电设备顺利连接。
可选地，所述切换开关断开所述用电设备与所述进线电源的连接的步骤之后还包括：
触发所述切换开关发送离网确认信号至所述双向充电机；
所述双向充电机接收到所述离网确认信号后，执行释放与所述双向充电机连接的第一充电电池的电能给所述用电设备供电的步骤。
本方案中，双向充电机在接收到离网确认信号时，才控制双向充电机给用电设备供电供电，而不是接收到供电请求指令即给用电设备供电，从而可以避免用电设备与进线电源未断开连接导致的双向充电机与用电设备的无效连接。
可选地，所述控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电的步骤之前还包括：
触发不间断电源给所述双向充电机供电。
本方案中，不间断电源UPS能够确保双向充电机的正常通信和使用，避免双向充电机失电导致无法给用电设备供电。
可选地，所述控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电的步骤之后还包括：
检测所述第一充电电池的供电能力是否满足所有用电设备的用电需求；
若所述第一充电电池的供电能力不满足所有用电设备的用电需求，则获取预存的各所述用电设备的供电优先级；
控制所述双向充电机给所述供电优先级排序靠前的部分所述用电设备供电。
本方案中，在充电电池的供电能力不足够为所有的用电设备供电时，优先给重要的用电设备供电，确保重要的用电设备能够正常运行。
可选地，所述控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电的步骤之后还包括：
检测当前的所述第一充电电池的供电能力是否满足用电设备的用电需求；
若当前的所述第一充电电池的供电能力不满足所述用电设备的用电需求，检测是否存在剩余电量大于电量阈值的所述第一充电电池；
若存在剩余电量大于电量阈值的所述第一充电电池，则切换该剩余电量大于电量阈值的所述第一充电电池为所述用电设备供电。
本方案中，通过设置多个第一充电电池可以延长给用电设备供电的时长，等待进线电源恢复给用电设备供电。
可选地，所述控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电的步骤之后还包括：
检测所述第一充电电池的供电能力是否满足用电设备的用电需求；
若所述第一充电电池的供电能力不满足所述用电设备的用电需求，检测是否存在剩余电量大于电量阈值的第二充电电池；
若存在剩余电量大于电量阈值的第二充电电池，则切换所述第二充电电池给所述用电设备供电。
本方案中，第二充电电池可以延长给用电设备供电的时长，等待进线电源恢复给用电设备供电。
第四方面，提供一种换电站的电源管理装置，应用于上述任一项所述的换电站，所述电源管理装置包括：
检测模块，用于检测进线电源是否停止给换电站内的用电设备供电；
控制模块，用于当进线电源停止给换电站内的用电设备供电时，控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电。
本方案中，在进线电源停止给用电设备供电时，双向充电机能够释放第一充电电池的电能给用电设备供电，也即在换电站整站断电的情况下，依然能给换电站内的用电设备供电，维持换电站正常运营，为用户提供可靠的换电服务。
第五方面，提供一种电子设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现上述任一项所述的电源管理方法。
第六方面，提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述任一项所述的电源管理方法。
在符合本领域常识的基础上，上述各优选条件，可任意组合，即得本发明各较佳实例。
本发明的积极进步效果在于：本发明实施例中，在进线电源停止给用电设备供电时，双向充电机能够释放第一充电电池的电能给用电设备供电，也即在换电站整站断电的情况下，依然能给换电站内的用电设备供电，维持换电站正常运营，为用户提供可靠的换电服务。
附图说明
图1为本发明一示例性实施例提供的一种电源管理系统的模块示意图；
图2为本发明一示例性实施例提供的另一种电源管理系统的模块示意图；
图3为本发明实施例提供的一种换电站的结构示意图；
图4为本发明一示例性实施例提供的一种换电站的电源管理方法的流程图；
图5为本发明一示例性实施例提供的一种换电站的电源管理装置的模块示意图；
图6为本发明一示例实施例示出的一种电子设备的结构示意图。
具体实施方式
下面通过实施例的方式进一步说明本发明，但并不因此将本发明限制在所述的实施例范围之中。
图1为本发明一示例性实施例提供的一种电源管理系统的模块示意图，该电源管理系统应用于换电站，用于为换电站内的用电设备供电；电源管理系统包括控制器11、双向充电机12和第一充电电池13，双向充电机12分别与控制器11和第一充电电池13电连接。
双向充电机12能够在充电模式和放电模式之间切换，处于充电模式时，双向充电机12能够给第一充电电池13充电，处于放电模式时，双向充电机12能够释放第一充电电池13的电能给用电设备供电。双向充电机12包括整流电路和逆变电路，通过控制整流电路和逆变电路中各个开关器件的PWM(Pulse Width Modulation，脉冲宽度调制技术)，即能实现双向充电机12的模式切换，具体实现过程，此处不予赘述。
用电设备可以但不局限于包括站内控制柜、换电设备、电池转运设备、通讯柜、监控通讯设备等换电所需必要设备。
当换电站的进线电源为用电设备正常供电时，双向充电机12将进线电源的电能存储于第一充电电池13，以确保第一充电电池13的剩余电量大于电量阈值，使其具有在进线电源停止给用电设备供电时能够给用电设备供电以确保换电站正常运行。其中，进线电源可以但不限于包括电网(提供市电)、微电网。电量阈值可以根据实际情况自行设置。
当换电站的进线电源停止给用电设备供电时，控制器11发送供电请求指令至双向充电机12。双向充电机12在接收到供电请求指令时，释放与双向充电机12连接的第一充电电池13的电能给用电设备供电。
本发明实施例中，在进线电源停止给用电设备供电时，双向充电机能够释放第一充电电池的电能给用电设备供电，也即在换电站整站断电的情况下，依然能给换电站内的用电设备供电，维持换电站正常运营，为用户提供可靠的换电服务。
需要说明的是，电源管理系统中双向充电机的数量不限于1个，双向充电机的数量可以根据实际需求设置多个，每个双向充电机均对应一个第一充电池。设置多个双向充电机，可以灵活配置，更好的满足用电设备的用电需求。
在一个实施例中，参见图2，电源管理系统还包括切换开关14；切换开关14分别与双向充电机12、用电设备2及进线电源3连接，双向充电机12接收到供电请求指令后向切换开关14发送跳闸信号，切换开关14在接收到跳闸信号后断开用电设备2与进线电源3的连接。
双向充电机12接收到供电请求指令后向切换开关发送跳闸信号，以断开用电设备与进线电源的连接，从而便于双向充电机12能与用电设备顺利连接。
在一个实施例中，切换开关在断开用电设备与进线电源的连接后，反馈离网确认信 号至双向充电机12，双向充电机12接收到离网确认信号后释放与双向充电机12连接的第一充电电池13的电能给用电设备供电。
双向充电机12在接收到离网确认信号时，才控制双向充电机12给用电设备供电供电，而不是接收到供电请求指令即给用电设备供电，从而可以避免用电设备与进线电源未断开连接导致的双向充电机12与用电设备的无效连接。
在一个实施例中，电源管理系统还包括不间断电源UPS，不间断电源分别与进线电源和双向充电机连接，当进线电源停止给用电设备供电时，不间断电源给双向充电机供电。不间断电源UPS能够确保双向充电机的正常通信和使用，避免双向充电机12失电无法正常通信而导致无法给用电设备供电。
在一个实施例中，控制器内预存各用电设备的供电优先级，当第一充电电池的供电能力不满足所有用电设备的用电需求时，控制器控制双向充电机给供电优先级排序靠前的部分用电设备供电。从而，在充电电池的供电能力不足够为所有的用电设备供电时，优先给重要的负载供电，确保重要的负载能够正常运行。
举例来说，假设换电站包含的用电设备中优先级从高到低依次为：控制柜、通讯柜、换电设备、电池转运设备、监控通讯设备、照明设备、闸机、排风扇、工业空调、广告牌，当第一充电电池13的供电能力不满足所有用电设备的用电需求，只满足5台用电设备的用电需求，则控制器11控制双向充电机12给控制柜、通讯柜、换电设备、电池转运设备、监控通讯设备供电，不再给照明设备、闸机、排风扇、工业空调及广告牌供电。
其中，用电设备的优先级可以根据实际情况自行设置。供电需求可以但不限于通过以下参数表征：电压、功率、电流、供电时长等。供电能力可以但不限于通过以下参数表征：剩余电量、输出功率、输出电流、输出电压等。
在一个实施例中，电源管理系统包括多个第一充电电池13，在当前的第一充电电池13的供电能力不满足用电设备的用电需求时，控制器11检测是否存在剩余电量大于电量阈值的第一充电电池13；若存在剩余电量大于电量阈值的第一充电电池13，则切换该剩余电量大于电量阈值的第一充电电池13为用电设备供电。其中，电量阈值可以根据实际情况自行设置。通过设置多个第一充电电池13可以延长给用电设备供电的时长，等待进线电源恢复给用电设备供电。
图3为本发明实施例提供的一种换电站的结构示意图，换电站包括单向充电机、第二充电电池，以及上述任一实施例提供的电源管理系统，第二充电电池与单向充电机连接，单向充电机与双向充电机并联连接于进线电源。除此之外，换电站还包括控制柜、换电设备、电池转运设备、通讯柜、监控通讯设备、照明设备等用电设备和UPS。
第二充电电池为用于安装至电动车辆上为电动车辆提供电能的换电电池，单向充电机连接进线电源为第二充电电池充电。进线电源可以但不限于包括电网(提供市电)、微电网。
需要说明的是，换电站中双向充电机和第一充电电池的数量不限于图中示出的各一个，还可以设置多个双向充电机和第一充电电池，各个双向充电机对应一个第一充电电池。
下面结合图3，介绍换电站的工作原理。
当确定进线电源停止给用电设备供电时，控制器发送供电请求指令至双向充电机，双向充电机接收到供电请求指令后向切换开关发送跳闸信号，切换开关在接收到跳闸信号后自动断开用电设备及双向充电机与进线电源的连接或者发出跳闸提示以提醒运维人员断开用电设备及双向充电机与进线电源的连接，断开连接之后切换开关反馈离网确认信号至双向充电机，双向充电机接收到离网确认信号后释放与双向充电机连接的第一充电电池的电能给用电设备供电。此时，与双向充电机连接的第一充电电池作为电源为换电站内的控制柜、换电设备、通讯柜、UPS、监控通讯设备、照明设备中的至少之一用电设备的工作提供电力，形成回路，换电站进入紧急备电状态。
具体地，切换开关断开后，双向充电机和用电设备与进线电源断开的同时也与单向充电机断开连接，第一充电电池的电能仅为用电设备供电，从而有助于延长给用电设备供电的时长，换电站除停止为第二充电电池充电以外，其它设备均正常工作，换电站正常进行换电运营。
当进线电源的供电恢复正常的时候，也即进线电源为用电设备正常供电，控制器发送停止供电指令至双向充电机，双向充电机在接收到停止供电指令时停止给用电设备供电，并发送闭合信号至切换开关，切换开关在接收到闭合信号后自动闭合以使用电设备与进线电源的连接或者发出闭合提示以提醒运维人员闭合开关。此时，换电站紧急备电功能关闭，进线电源给换电站内的用电设备供电，换电站恢复正常工作。同时，双向充电机可切换至充电模式为第一充电电池充电。
在一个实施例中，控制器还用于在第一充电电池的供电能力不满足用电设备的用电需求时，检测是否存在剩余电量大于电量阈值的第二充电电池。若存在剩余电量大于电量阈值的第二充电电池，则切换第二充电电池给用电设备供电。
其中，电量阈值可以根据实际情况自行设置。第二充电电池对应的电量阈值与第一充电电池对应的电量阈值可以相同，也可以不同。
在一个实施例中，控制器在确定第一充电电池的供电能力不满足用电设备的用电需 求且存在剩余电量大于电量阈值的第二充电电池时，则发出切换提示，以提示运维人员将双向充电机切换为与剩余电量大于电量阈值的第二充电电池连接。本实施例中，当第一充电电池的供电能力不满足用电设备的用电需求时，将换电电池用于为用电设备供电，可以延长给用电设备供电的时长，等待进线电源恢复给用电设备供电。
具体地，在确定第一充电电池的供电能力不满足用电设备的用电需求且存在剩余电量大于电量阈值的第二充电电池时，先控制剩余电量大于电量阈值的第二充电电池与单向充电机断开连接，再通过换电设备或电池转运设备将其转运至双向充电机所在的位置处，然后控制其与双向充电机连接，以使双向充电机释放第二充电电池给用电设备供电。进一步地，为避免由第一充电电池切换至第二充电电池的过程中发生断电，预先设置一备用双向充电机，当第一充电电池的供电能力不满足用电设备的用电需求且存在剩余电量大于电量阈值的第二充电电池时，将第二充电电池与单向充电机断开并转运至备用双向充电机所在的位置处后，先将第二充电电池与备用双向充电机连接，第二充电电池与备用双向充电机连接好并开始放电后再断开第一充电电池与双向充电机的连接，或直接将与第一充电电池连接的双向充电机切换至为第一充电电池充电。
在一个实施例中，控制器还对换电站内的第一充电电池和第二充电电池的状态进行监控，若发生第一充电电池和/或第二充电电池出现热失控情况，将出现热失控情况的第一充电电池和/或第二充电电池确定为问题电池，并取出问题电池，避免特殊情况下换电站因热失控的问题电池发生更严重的损失。
图4为本发明一示例性实施例提供的一种换电站的电源管理方法的流程图，应用于上述任一实施例提供的换电站，下面结合图1～3介绍电源管理过程。参见图4，该换电站的电源管理方法包括以下步骤：
步骤401、检测进线电源是否停止给换电站内的用电设备供电。
步骤402、当进线电源停止给换电站内的用电设备供电时，控制双向充电机释放与其连接的第一充电电池的电能给用电设备供电。
本发明实施例中，在进线电源停止给用电设备供电时，双向充电机能够释放第一充电电池的电能给用电设备供电，也即在换电站整站断电的情况下，依然能给换电站内的用电设备供电，维持换电站正常运营，为用户提供可靠的换电服务。
在一个实施例中，控制双向充电机释放与其连接的第一充电电池的电能给用电设备供电的步骤之前还包括：触发双向充电机发送跳闸信号给切换开关；接收到跳闸信号后，切换开关断开用电设备与进线电源的连接。
本发明实施例中，双向充电机接收到供电请求指令后向切换开关发送跳闸信号，以 断开用电设备与进线电源的连接，从而便于双向充电机能与用电设备顺利连接。并且，双向充电机和用电设备与进线电源断开的同时也与单向充电机断开连接，第一充电电池的电能仅为用电设备供电，从而有助于延长给用电设备供电的时长。
在一个实施例中，切换开关断开用电设备与进线电源的连接的步骤之后还包括：触发切换开关发送离网确认信号至双向充电机；双向充电机接收到离网确认信号后，执行释放与双向充电机连接的第一充电电池的电能给用电设备供电的步骤。
本发明实施例中，双向充电机在接收到离网确认信号时，才控制双向充电机给用电设备供电供电，而不是接收到供电请求指令即给用电设备供电，从而可以避免用电设备与进线电源未断开连接导致的双向充电机与用电设备的无效连接。
在一个实施例中，控制双向充电机释放与其连接的第一充电电池的电能给用电设备供电的步骤之前还包括：触发不间断电源给双向充电机供电。
本发明实施例中，不间断电源UPS能够确保双向充电机的正常通信和使用，避免双向充电机失电无法正常通信而导致无法给用电设备供电。
在一个实施例中，控制双向充电机释放与其连接的第一充电电池的电能给用电设备供电的步骤之后还包括：检测第一充电电池的供电能力是否满足所有用电设备的用电需求；若第一充电电池的供电能力不满足所有用电设备的用电需求，则获取预存的各用电设备的供电优先级；控制双向充电机给供电优先级排序靠前的部分用电设备供电。
本发明实施例中，在充电电池的供电能力不足够为所有的用电设备供电时，优先给重要的用电设备供电，确保重要的用电设备能够正常运行。
在一个实施例中，控制双向充电机释放与其连接的第一充电电池的电能给用电设备供电的步骤之后还包括：检测当前的第一充电电池的供电能力是否满足用电设备的用电需求；若当前的第一充电电池的供电能力不满足用电设备的用电需求，检测是否存在剩余电量大于电量阈值的第一充电电池；若存在剩余电量大于电量阈值的第一充电电池，则切换该剩余电量大于电量阈值的第一充电电池为用电设备供电。
本发明实施例中，通过设置多个第一充电电池可以延长给用电设备供电的时长，等待进线电源恢复给用电设备供电。
在一个实施例中，控制双向充电机释放与其连接的第一充电电池的电能给用电设备供电的步骤之后还包括：检测第一充电电池的供电能力是否满足用电设备的用电需求；若第一充电电池的供电能力不满足用电设备的用电需求，检测是否存在剩余电量大于电量阈值的第二充电电池；若存在剩余电量大于电量阈值的第二充电电池，则切换第二充电电池给用电设备供电。
本发明实施例中，第二充电电池可以延长给用电设备供电的时长，等待进线电源恢复给用电设备供电。
与前述换电站的电源管理方法实施例相对应，本发明还提供了换电站的电源管理装置的实施例。
图5为本发明一示例性实施例提供的一种换电站的电源管理装置的模块示意图，应用于上述任一项所述的换电站，电源管理装置包括：
检测模块51，用于检测进线电源是否停止给换电站内的用电设备供电；
控制模块52，用于当进线电源停止给换电站内的用电设备供电时，控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电。
可选地，电源管理装置还包括：
触发模块，用于触发所述双向充电机发送跳闸信号给切换开关；
接收模块，用于接收到所述跳闸信号后，所述切换开关断开所述用电设备与所述进线电源的连接。
可选地，触发模块，还用于触发所述切换开关发送离网确认信号至所述双向充电机；
所述双向充电机接收到所述离网确认信号后，执行释放与所述双向充电机连接的第一充电电池的电能给所述用电设备供电的步骤。
可选地，触发模块，还用于触发不间断电源给所述双向充电机供电。
可选地，还包括：
检测模块，用于检测所述第一充电电池的供电能力是否满足所有用电设备的用电需求；
若所述第一充电电池的供电能力不满足所有用电设备的用电需求，则获取预存的各所述用电设备的供电优先级，并调用控制模块控制所述双向充电机给所述供电优先级排序靠前的部分所述用电设备供电。
可选地，还包括：
检测模块，用于检测当前的所述第一充电电池的供电能力是否满足用电设备的用电需求；若当前的所述第一充电电池的供电能力不满足所述用电设备的用电需求，检测是否存在剩余电量大于电量阈值的所述第一充电电池；若存在剩余电量大于电量阈值的所述第一充电电池，则调用控制模块切换该剩余电量大于电量阈值的所述第一充电电池为所述用电设备供电。
可选地，还包括：
检测模块，用于检测所述第一充电电池的供电能力是否满足用电设备的用电需求； 若所述第一充电电池的供电能力不满足所述用电设备的用电需求，检测是否存在剩余电量大于电量阈值的第二充电电池；若存在剩余电量大于电量阈值的第二充电电池，则调用控制模块切换所述第二充电电池给所述用电设备供电。
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本发明方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
图6为本发明一示例实施例示出的一种电子设备的结构示意图，示出了适于用来实现本发明实施方式的示例性电子设备60的框图。图6显示的电子设备60仅仅是一个示例，不应对本发明实施例的功能和使用范围带来任何限制。
如图6所示，电子设备60可以以通用计算设备的形式表现，例如其可以为服务器设备。电子设备60的组件可以包括但不限于：上述至少一个处理器61、上述至少一个存储器62、连接不同系统组件(包括存储器62和处理器61)的总线63。
总线63包括数据总线、地址总线和控制总线。
存储器62可以包括易失性存储器，例如随机存取存储器(RAM)621和/或高速缓存存储器622，还可以进一步包括只读存储器(ROM)623。
存储器62还可以包括具有一组(至少一个)程序模块624的程序工具625(或实用工具)，这样的程序模块624包括但不限于：操作系统、一个或者多个应用程序、其它程序模块以及程序数据，这些示例中的每一个或某种组合中可能包括网络环境的实现。
处理器61通过运行存储在存储器62中的计算机程序，从而执行各种功能应用以及数据处理，例如上述任一实施例所提供的方法。
电子设备60也可以与一个或多个外部设备64(例如键盘、指向设备等)通信。这种通信可以通过输入/输出(I/O)接口65进行。并且，模型生成的电子设备60还可以通过网络适配器66与一个或者多个网络(例如局域网(LAN)，广域网(WAN)和/或公共网络，例如因特网)通信。如图所示，网络适配器66通过总线63与模型生成的电子设备60的其它模块通信。应当明白，尽管图中未示出，可以结合模型生成的电子设备60使用其它硬件和/或软件模块，包括但不限于：微代码、设备驱动器、冗余处理器、外部磁盘驱动阵列、RAID(磁盘阵列)系统、磁带驱动器以及数据备份存储系统等。
应当注意，尽管在上文详细描述中提及了电子设备的若干单元/模块或子单元/模块， 但是这种划分仅仅是示例性的并非强制性的。实际上，根据本发明的实施方式，上文描述的两个或更多单元/模块的特征和功能可以在一个单元/模块中具体化。反之，上文描述的一个单元/模块的特征和功能可以进一步划分为由多个单元/模块来具体化。
本发明实施例还提供一种计算机可读存储介质，其上存储有计算机程序，所述程序被处理器执行时实现上述任一实施例所提供的方法。
其中，可读存储介质可以采用的更具体可以包括但不限于：便携式盘、硬盘、随机存取存储器、只读存储器、可擦拭可编程只读存储器、光存储器件、磁存储器件或上述的任意合适的组合。
在可能的实施方式中，本发明实施例还可以实现为一种程序产品的形式，其包括程序代码，当所述程序产品在终端设备上运行时，所述程序代码用于使所述终端设备执行实现上述任一实施例的方法。
其中，可以以一种或多种程序设计语言的任意组合来编写用于执行本发明的程序代码，所述程序代码可以完全地在用户设备上执行、部分地在用户设备上执行、作为一个独立的软件包执行、部分在用户设备上部分在远程设备上执行或完全在远程设备上执行。
虽然以上描述了本发明的具体实施方式，但是本领域的技术人员应当理解，这仅是举例说明，本发明的保护范围是由所附权利要求书限定的。本领域的技术人员在不背离本发明的原理和实质的前提下，可以对这些实施方式做出多种变更或修改，但这些变更和修改均落入本发明的保护范围。

Claims (19)

  1. 一种电源管理系统，其特征在于，应用于换电站，用于为所述换电站内的用电设备供电；所述电源管理系统包括控制器、双向充电机和第一充电电池，所述双向充电机分别与所述控制器和所述第一充电电池电连接；
    当换电站的进线电源停止给所述用电设备供电时，所述控制器发送供电请求指令至所述双向充电机；
    所述双向充电机在接收到所述供电请求指令时，释放与所述双向充电机连接的第一充电电池的电能给所述用电设备供电。
  2. 根据权利要求1所述的电源管理系统，其特征在于，所述电源管理系统还包括切换开关；所述切换开关分别与所述双向充电机、所述用电设备及所述进线电源连接，
    所述双向充电机接收到所述供电请求指令后向所述切换开关发送跳闸信号，所述切换开关在接收到所述跳闸信号后断开所述用电设备与所述进线电源的连接。
  3. 根据权利要求2所述的电源管理系统，其特征在于，所述切换开关在断开所述用电设备与所述进线电源的连接后，反馈离网确认信号至所述双向充电机，所述双向充电机接收到所述离网确认信号后释放与所述双向充电机连接的第一充电电池的电能给所述用电设备供电。
  4. 根据权利要求1-3中任一项所述的电源管理系统，其特征在于，所述电源管理系统还包括不间断电源，所述不间断电源分别与所述进线电源和所述双向充电机连接，当所述进线电源停止给所述用电设备供电时，所述不间断电源给所述双向充电机供电。
  5. 根据权利要求1-4中任一项所述的电源管理系统，其特征在于，所述控制器内预存各所述用电设备的供电优先级，当所述第一充电电池的供电能力不满足所有用电设备的用电需求时，所述控制器控制所述双向充电机给所述供电优先级排序靠前的部分所述用电设备供电。
  6. 根据权利要求1-5中任一项所述的电源管理系统，其特征在于，所述电源管理系统包括多个所述第一充电电池，在当前的所述第一充电电池的供电能力不满足所述用电设备的用电需求时，所述控制器检测是否存在剩余电量大于电量阈值的所述第一充电电池；若存在剩余电量大于电量阈值的所述第一充电电池，则切换该剩余电量大于电量阈值的所述第一充电电池为所述用电设备供电。
  7. 根据权利要求6所述的电源管理系统，其特征在于，所述电源管理系统包括多个双向充电机，各个充电机均对应一个第一充电电池。
  8. 一种换电站，其特征在于，所述换电站包括单向充电机、第二充电电池，以及如权利要求1-7中任一项所述的电源管理系统，所述第二充电电池与所述单向充电机连接，所述单向充电机与所述双向充电机并联连接于进线电源。
  9. 根据权利要求8所述的换电站，其特征在于，所述控制器还用于在所述第一充电电池的供电能力不满足所述用电设备的用电需求时，检测是否存在剩余电量大于电量阈值的第二充电电池；
    若存在剩余电量大于电量阈值的第二充电电池，则切换所述第二充电电池给所述用电设备供电。
  10. 一种换电站的电源管理方法，应用于权利要求8或9所述的换电站，其特征在于，所述换电站的电源管理方法包括以下步骤：
    检测进线电源是否停止给换电站内的用电设备供电；
    当进线电源停止给换电站内的用电设备供电时，控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电。
  11. 根据权利要求10所述的换电站的电源管理方法，其特征在于，所述控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电的步骤之前还包括：
    触发所述双向充电机发送跳闸信号给切换开关；
    接收到所述跳闸信号后，所述切换开关断开所述用电设备与所述进线电源的连接。
  12. 根据权利要求11所述的换电站的电源管理方法，其特征在于，所述切换开关断开所述用电设备与所述进线电源的连接的步骤之后还包括：
    触发所述切换开关发送离网确认信号至所述双向充电机；
    所述双向充电机接收到所述离网确认信号后，执行释放与所述双向充电机连接的第一充电电池的电能给所述用电设备供电的步骤。
  13. 根据权利要求11或12所述的换电站的电源管理方法，其特征在于，所述控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电的步骤之前还包括：
    触发不间断电源给所述双向充电机供电。
  14. 根据权利要求10-13中任一项所述的换电站的电源管理方法，其特征在于，所述控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电的步骤之后还包括：
    检测所述第一充电电池的供电能力是否满足所有用电设备的用电需求；
    若所述第一充电电池的供电能力不满足所有用电设备的用电需求，则获取预存的各所述用电设备的供电优先级；
    控制所述双向充电机给所述供电优先级排序靠前的部分所述用电设备供电。
  15. 根据权利要求10-14中任一项所述的换电站的电源管理方法，其特征在于，所述控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电的步骤之后还包括：
    检测当前的所述第一充电电池的供电能力是否满足用电设备的用电需求；
    若当前的所述第一充电电池的供电能力不满足所述用电设备的用电需求，检测是否存在剩余电量大于电量阈值的所述第一充电电池；
    若存在剩余电量大于电量阈值的所述第一充电电池，则切换该剩余电量大于电量阈值的所述第一充电电池为所述用电设备供电。
  16. 根据权利要求10-15中任一项所述的电源管理方法，其特征在于，所述控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电的步骤之后还包括：
    检测所述第一充电电池的供电能力是否满足用电设备的用电需求；
    若所述第一充电电池的供电能力不满足所述用电设备的用电需求，检测是否存在剩余电量大于电量阈值的第二充电电池；
    若存在剩余电量大于电量阈值的第二充电电池，则切换所述第二充电电池给所述用电设备供电。
  17. 一种换电站的电源管理装置，应用于权利要求8或9所述的换电站，其特征在于，所述电源管理装置包括：
    检测模块，用于检测进线电源是否停止给换电站内的用电设备供电；
    控制模块，用于当进线电源停止给换电站内的用电设备供电时，控制双向充电机释放与其连接的第一充电电池的电能给所述用电设备供电。
  18. 一种电子设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述计算机程序时实现权利要求10至16中任一项所述的电源管理方法。
  19. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现权利要求10至16中任一项所述的电源管理方法。
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CN115117997A (zh) * 2021-12-30 2022-09-27 奥动新能源汽车科技有限公司 电源管理系统、换电站及其电源管理方法、装置
CN115117953A (zh) * 2021-12-30 2022-09-27 奥动新能源汽车科技有限公司 双向充电机、供电系统、电源管理方法及装置

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