CN217282355U - Power management system and power conversion station - Google Patents
Power management system and power conversion station Download PDFInfo
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- CN217282355U CN217282355U CN202123442550.3U CN202123442550U CN217282355U CN 217282355 U CN217282355 U CN 217282355U CN 202123442550 U CN202123442550 U CN 202123442550U CN 217282355 U CN217282355 U CN 217282355U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The utility model discloses a power management system, trade power station. The power supply management system is applied to the power exchanging station and used for supplying power to the electric equipment in the power exchanging station; the power management system comprises a controller, a bidirectional charger and a first charging battery, wherein the bidirectional charger is electrically connected with the controller and the first charging battery respectively; when an incoming line power supply of the power conversion station stops supplying power to the electric equipment, the controller sends a power supply request instruction to the bidirectional charger; when the bidirectional charger receives the power supply request instruction, the electric energy of the first charging battery connected with the bidirectional charger is released to supply power to the electric equipment. Therefore, when the incoming line power supply stops supplying power to the electric equipment, the electric equipment in the power exchanging station can still be supplied with power, and normal operation of the power exchanging station is maintained.
Description
Technical Field
The utility model relates to a power management system, trade power station.
Background
Realize for electric automobile fills and trades the electricity and trade electric data to keep through management and control equipment (including control cabinet in the station, trade electric equipment, communication cabinet, control communication equipment etc. and other trade the required essential equipment of electricity) in trading the power station, supply power for management and control equipment through the commercial power among the prior art, if the commercial power loses the electricity, can lead to management and control equipment can't fill for electric automobile and trade the electricity, still can cause to trade losing of electric data, cause the loss.
SUMMERY OF THE UTILITY MODEL
The utility model provides a power management system, trade the power station can stop when trading the consumer in the power station for the inlet wire power supply, utilize to trade the rechargeable battery in the power station for the consumer power supply, maintain the normal operation that trades the power station.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
in a first aspect, a power management system is provided, which is applied to a power exchanging station and used for supplying power to electric equipment in the power exchanging station; the power management system comprises a controller, a bidirectional charger and a first charging battery, wherein the bidirectional charger is respectively and electrically connected with the controller and the first charging battery;
when an incoming line power supply of the power conversion station stops supplying power to the electric equipment, the controller sends a power supply request instruction to the bidirectional charger;
and when the bidirectional charger receives the power supply request instruction, the bidirectional charger releases the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment.
In the scheme, when the incoming line power supply stops supplying power to the electric equipment, the bidirectional charger can release the electric energy of the first charging battery to supply power to the electric equipment, namely, under the condition that the whole power station of the power changing station is powered off, the electric equipment in the power changing station can still be supplied with power, the normal operation of the power changing station is maintained, and reliable power changing service is provided for users.
Optionally, the power management system further comprises a switch; the change-over switch is respectively connected with the bidirectional charger, the electric equipment and the incoming line power supply,
and the bidirectional charger sends a tripping signal to the selector switch after receiving the power supply request instruction, and the selector switch disconnects the power utilization equipment from the incoming line power supply after receiving the tripping signal.
In the scheme, the bidirectional charger sends a tripping signal to the change-over switch after receiving the power supply request instruction so as to disconnect the connection between the electric equipment and the incoming line power supply, and therefore the bidirectional charger can be smoothly connected with the electric equipment.
Optionally, the change-over switch feeds back an off-grid confirmation signal to the bidirectional charger after disconnecting the electrical equipment from the incoming line power supply, and the bidirectional charger releases electric energy of a first rechargeable battery connected with the bidirectional charger to supply power to the electrical equipment after receiving the off-grid confirmation signal.
According to the scheme, the bidirectional charger is controlled to supply power to the electric equipment when receiving the off-grid confirmation signal, instead of supplying power to the electric equipment when receiving a power supply request instruction, so that invalid connection between the bidirectional charger and the electric equipment caused by non-disconnection between the electric equipment and an incoming line power supply can be avoided.
Optionally, the power management system further comprises an uninterruptible power supply, the uninterruptible power supply is connected with the incoming line power supply and the bidirectional charger respectively, and when the incoming line power supply stops supplying power to the electric equipment, the uninterruptible power supply supplies power to the bidirectional charger.
In the scheme, the Uninterruptible Power Supply (UPS) can ensure normal communication and use of the bidirectional charger, and the phenomenon that the bidirectional charger fails to normally communicate due to Power failure and cannot supply Power to electric equipment is avoided.
Optionally, the power management system further comprises a memory electrically connected to the controller; the power supply priority of each piece of electric equipment is prestored in the memory;
when the power supply capacity of the first charging battery does not meet the power consumption requirements of all the electric equipment, the controller sends a switching instruction to the bidirectional charger, so that the bidirectional charger is switched to be connected with the electric equipment with the power supply priority ranking close to the front.
In the scheme, when the power supply capacity of the rechargeable battery is not enough to supply power to all the electric equipment, the important load is preferentially supplied with power, and the normal operation of the important load is ensured.
Optionally, the power management system includes a plurality of first rechargeable batteries, and when the current power supply capacity of the first rechargeable battery does not meet the power consumption requirement of the electrical equipment, the controller is further configured to obtain the remaining power of each first rechargeable battery, and send a switching instruction to the bidirectional charger, so that the bidirectional charger is switched to be connected with the first rechargeable battery with the remaining power greater than the power threshold.
In this scheme, can prolong the time of supplying power for the consumer through setting up a plurality of first rechargeable battery, wait for the inlet wire power to resume and supply power for the consumer.
Optionally, the power management system includes a plurality of bidirectional chargers, and each charger corresponds to one first rechargeable battery.
In this scheme, set up a plurality of two-way charger respectively with a plurality of first rechargeable battery one-to-one, can improve the switching efficiency between a plurality of first rechargeable battery to the better power consumption demand that satisfies consumer.
The second aspect provides a power changing station, which comprises a one-way charger, a second rechargeable battery and any one of the power management systems, wherein the second rechargeable battery is connected with the one-way charger, and the one-way charger and the two-way charger are connected in parallel to an incoming line power supply.
In the power switching station, when the incoming line power supply stops supplying power to the electric equipment, the power supply of the electric equipment in the power switching station can still maintain the normal operation of the power switching station, and reliable power switching service is provided for users.
Optionally, the controller is further configured to detect whether there is a second rechargeable battery with a remaining power amount greater than a power amount threshold when the power supply capability of the first rechargeable battery does not meet the power consumption requirement of the power consumption device;
and if a second rechargeable battery with the residual electric quantity larger than the electric quantity threshold exists, switching the second rechargeable battery to supply power to the electric equipment.
In this scheme, second rechargeable battery can prolong the time length of giving the consumer power supply, waits for the inlet wire power to resume and gives the consumer power supply.
In a third aspect, a power management method for a power swapping station is provided, which is applied to any one of the power swapping stations, and the power management method for the power swapping station includes the following steps:
detecting whether an incoming line power supply stops supplying power to electric equipment in a power conversion station or not;
when the incoming line power supply stops supplying power to the electric equipment in the power changing station, the bidirectional charger is controlled to release the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment.
In the scheme, when the incoming line power supply stops supplying power to the electric equipment, the bidirectional charger can release the electric energy of the first charging battery to supply power to the electric equipment, namely, under the condition that the whole power station of the power changing station is powered off, the electric equipment in the power changing station can still be supplied with power, the normal operation of the power changing station is maintained, and reliable power changing service is provided for users.
Optionally, before the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected thereto to supply power to the electric device, the method further includes:
triggering the bidirectional charger to send a trip signal to the change-over switch;
and after the tripping signal is received, the change-over switch disconnects the electric equipment from the incoming line power supply.
In the scheme, the bidirectional charger sends a tripping signal to the change-over switch after receiving the power supply request instruction so as to disconnect the connection between the electric equipment and the incoming line power supply, and therefore the bidirectional charger can be smoothly connected with the electric equipment.
Optionally, the step of disconnecting the electrical equipment from the incoming line power supply by the switch further includes:
triggering the change-over switch to send an off-grid confirmation signal to the bidirectional charger;
and after receiving the off-grid confirmation signal, the bidirectional charger executes the step of releasing the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment.
According to the scheme, the bidirectional charger is controlled to supply power to the electric equipment when receiving the off-grid confirmation signal, instead of supplying power to the electric equipment when receiving a power supply request instruction, so that invalid connection between the bidirectional charger and the electric equipment caused by non-disconnection between the electric equipment and an incoming line power supply can be avoided.
Optionally, before the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected thereto to supply power to the electric device, the method further includes:
and triggering an uninterruptible power supply to supply power to the bidirectional charger.
In the scheme, the UPS can ensure normal communication and use of the bidirectional charger, and the phenomenon that the bidirectional charger fails to supply power to the electric equipment due to power failure is avoided.
Optionally, after the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected thereto to supply power to the electric device, the method further includes:
detecting whether the power supply capacity of the first rechargeable battery meets the power utilization requirements of all power utilization equipment;
if the power supply capacity of the first rechargeable battery does not meet the power consumption requirements of all the electric equipment, acquiring the prestored power supply priority of each electric equipment;
and controlling the bidirectional charger to supply power to the electric equipment with the power supply priority ranked in the front.
In the scheme, when the power supply capacity of the rechargeable battery is not enough to supply power to all the electric equipment, the important electric equipment is preferentially supplied with power, and the normal operation of the important electric equipment is ensured.
Optionally, after the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected thereto to supply power to the electric device, the method further includes:
detecting whether the current power supply capacity of the first rechargeable battery meets the power utilization requirement of power utilization equipment;
if the current power supply capacity of the first rechargeable battery does not meet the power consumption requirement of the electric equipment, detecting whether the first rechargeable battery with the residual power larger than the power threshold exists;
and if the first rechargeable battery with the residual electric quantity larger than the electric quantity threshold exists, switching the first rechargeable battery with the residual electric quantity larger than the electric quantity threshold to supply power to the electric equipment.
In this scheme, can prolong the time of supplying power for the consumer through setting up a plurality of first rechargeable battery, wait for the inlet wire power to resume and supply power for the consumer.
Optionally, after the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected thereto to supply power to the electric device, the method further includes:
detecting whether the power supply capacity of the first rechargeable battery meets the power utilization requirement of the power utilization equipment;
if the power supply capacity of the first rechargeable battery does not meet the power utilization requirement of the electric equipment, detecting whether a second rechargeable battery with the residual electric quantity larger than an electric quantity threshold exists or not;
and if a second rechargeable battery with the residual electric quantity larger than the electric quantity threshold exists, switching the second rechargeable battery to supply power to the electric equipment.
In this scheme, second rechargeable battery can prolong the time of supplying power for the consumer, waits for the inlet wire power to resume and supplies power for the consumer.
In a fourth aspect, a power management device for a power swapping station is provided, which is applied to any one of the power swapping stations, and includes:
the detection module is used for detecting whether the incoming line power supply stops supplying power to the electric equipment in the power exchanging station;
and the control module is used for controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment when the incoming line power supply stops supplying power to the electric equipment in the power conversion station.
In this scheme, when the inlet wire power stops to supply power for the consumer, the electric energy that the two-way charger can release first rechargeable battery supplies power for the consumer, also under the circumstances that trades the whole outage of power station, still can supply power for the consumer in trading the power station, maintains and trades the normal operation of power station, provides reliable trade electric service for the user.
In a fifth aspect, an electronic device is provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the processor implements the power management method described in any one of the above.
In a sixth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the power management method of any of the above.
On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.
The utility model discloses an actively advance the effect and lie in: the embodiment of the utility model provides an in, when the inlet wire power stops to supply power for consumer, the electric energy that the two-way charger can release first rechargeable battery supplies power for consumer, also promptly under the circumstances of trading the whole outage in station, still can supply power for the consumer in trading the station, maintains and trades the normal operation in station, provides reliable electric service of trading for the user.
Drawings
Fig. 1 is a schematic block diagram of a power management system according to an exemplary embodiment of the present invention;
fig. 2 is a schematic block diagram of another power management system according to an exemplary embodiment of the present invention;
fig. 3 is a schematic structural diagram of a power swapping station provided in an embodiment of the present invention;
fig. 4 is a flowchart of a power management method for a power swapping station according to an exemplary embodiment of the present invention;
fig. 5 is a schematic block diagram of a power management device of a power swapping station according to 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.
Detailed Description
The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.
Fig. 1 is a schematic block diagram of a power management system according to an exemplary embodiment of the present invention, which is applied to a power exchanging station and used for supplying power to electrical devices in the power exchanging station; the power management system comprises a controller 11, a bidirectional charger 12 and a first charging battery 13, wherein the bidirectional charger 12 is electrically connected with the controller 11 and the first charging battery 13 respectively.
The bidirectional charger 12 can switch between a charging mode and a discharging mode, when the bidirectional charger 12 is in the charging mode, the bidirectional charger 12 can charge the first charging battery 13, and when the bidirectional charger 12 is in the discharging mode, the bidirectional charger 12 can release the electric energy of the first charging battery 13 to supply power to the electric equipment. The bidirectional charger 12 includes a rectification circuit and an inverter circuit, and mode switching of the bidirectional charger 12 can be realized by controlling PWM (Pulse Width Modulation) of each switching device in the rectification circuit and the inverter circuit, and a specific implementation process is not described herein.
The electric equipment can include, but is not limited to, essential equipment required for power conversion, such as a control cabinet in a station, power conversion equipment, battery transfer equipment, a communication cabinet, monitoring communication equipment and the like.
When the incoming line power supply of the power exchanging station normally supplies power to the electric equipment, the bidirectional charger 12 stores the electric energy of the incoming line power supply in the first charging battery 13 to ensure that the residual electric quantity of the first charging battery 13 is greater than the electric quantity threshold value, so that the power exchanging station can supply power to the electric equipment when the incoming line power supply stops supplying power to the electric equipment to ensure the normal operation of the power exchanging station. The incoming power source may include, but is not limited to, a power grid (providing commercial power), and a micro-grid. The electric quantity threshold value can be set according to the actual situation.
When the incoming line power supply of the power conversion station stops supplying power to the electric equipment, the controller 11 sends a power supply request instruction to the bidirectional charger 12. When receiving the power supply request instruction, the bidirectional charger 12 releases the electric energy of the first rechargeable battery 13 connected to the bidirectional charger 12 to supply power to the electric equipment.
The embodiment of the utility model provides an in, when the inlet wire power stops to supply power for consumer, the electric energy that the two-way charger can release first rechargeable battery supplies power for consumer, also promptly under the circumstances of trading the whole outage in station, still can supply power for the consumer in trading the station, maintains and trades the normal operation in station, provides reliable electric service of trading for the user.
It should be noted that the number of the bidirectional chargers in the power management system is not limited to 1, a plurality of bidirectional chargers can be set according to actual requirements, and each bidirectional charger corresponds to one first charging battery. The plurality of bidirectional chargers are arranged, so that flexible configuration can be realized, and the power consumption requirement of the electric equipment can be better met.
In one embodiment, referring to fig. 2, the power management system further comprises a diverter switch 14; the change-over switch 14 is respectively connected with the bidirectional charger 12, the electric equipment 2 and the incoming line power supply 3, the bidirectional charger 12 sends a trip signal to the change-over switch 14 after receiving a power supply request instruction, and the change-over switch 14 disconnects the electric equipment 2 from the incoming line power supply 3 after receiving the trip signal.
The bidirectional charger 12 sends a trip signal to the change-over switch after receiving the power supply request instruction so as to disconnect the connection between the electric equipment and the incoming line power supply, thereby facilitating the smooth connection between the bidirectional charger 12 and the electric equipment.
In one embodiment, the switch feeds back an off-grid confirmation signal to the bidirectional charger 12 after disconnecting the electric equipment from the incoming power supply, and the bidirectional charger 12 releases the electric energy of the first rechargeable battery 13 connected to the bidirectional charger 12 to supply power to the electric equipment after receiving the off-grid confirmation signal.
When the bidirectional charger 12 receives the off-grid confirmation signal, the bidirectional charger 12 is controlled to supply power to the electric equipment instead of supplying power to the electric equipment when receiving a power supply request instruction, so that invalid connection between the bidirectional charger 12 and the electric equipment caused by the fact that the electric equipment is not disconnected from the incoming line power supply can be avoided.
In one embodiment, the power management system further comprises an uninterruptible power supply UPS, the uninterruptible power supply is respectively connected with the incoming line power supply and the bidirectional charger, and when the incoming line power supply stops supplying power to the electric equipment, the uninterruptible power supply supplies power to the bidirectional charger. The UPS can ensure normal communication and use of the bidirectional charger, and avoid the situation that the bidirectional charger 12 fails to normally communicate due to power failure and cannot supply power to electric equipment.
In one embodiment, the controller prestores power supply priorities of all the electric equipment, and when the power supply capacity of the first rechargeable battery does not meet the power consumption requirements of all the electric equipment, the controller controls the bidirectional charger to supply power to the partial electric equipment with the power supply priorities ranked in the front. Therefore, when the power supply capacity of the rechargeable battery is not enough to supply power to all the electric equipment, the important load is preferentially supplied with power, and the normal operation of the important load is ensured.
In one embodiment, the power management system further comprises a memory electrically connected to the controller; the power supply priority of each electric device is prestored in the memory; when the power supply capacity of the first rechargeable battery does not meet the power consumption requirements of all the power consumption equipment, the controller sends a switching instruction to the bidirectional charger, so that the bidirectional charger is switched to be connected with the power consumption equipment with the power supply priority ranking front, and the power supply is supplied to the power consumption equipment with the power supply priority ranking front.
For example, suppose that the priorities of the electric devices included in the swapping station are as follows from high to low: the switch board, the communication cabinet, trade electric installation, the battery transportation equipment, control communication equipment, lighting apparatus, the floodgate machine, the exhaust fan, industrial air conditioner, the bill-board, when the power supply capacity of first rechargeable battery 13 can not satisfy all consumer's power consumption demand, only satisfy 5 consumer's power consumption demands, then controller 11 control two-way machine 12 that charges gives the switch board, the communication cabinet, trade electric installation, battery transportation equipment, the power supply of control communication equipment, no longer give lighting apparatus, the floodgate machine, the exhaust fan, industrial air conditioner and bill-board power supply.
The priority of the electric equipment can be set according to the actual situation. The power demand may be characterized by, but is not limited to, the following parameters: voltage, power, current, duration of power supply, etc. The power supply capability may be characterized by, but is not limited to, the following parameters: residual capacity, output power, output current, output voltage, etc.
In one embodiment, the power management system includes a plurality of first rechargeable batteries 13, and when the current power supply capacity of the first rechargeable batteries 13 does not meet the power demand of the electric device, the controller 11 detects whether there are first rechargeable batteries 13 with a remaining power amount greater than a power amount threshold; if the first rechargeable battery 13 with the residual capacity greater than the capacity threshold exists, the first rechargeable battery 13 with the residual capacity greater than the capacity threshold is switched to supply power to the electric equipment. Wherein, the electric quantity threshold value can be set according to actual conditions by oneself. The time for supplying power to the electric equipment can be prolonged by arranging the first rechargeable batteries 13, and the power supply of the electric equipment is recovered by waiting for the incoming line power supply. When the first rechargeable battery is switched, the controller sends a switching instruction to the bidirectional charger, and the bidirectional charger is switched to be connected with the first rechargeable battery with the residual electric quantity greater than the electric quantity threshold value when receiving the switching instruction.
Fig. 3 is the embodiment of the utility model provides a pair of structure schematic diagram of trading power station trades the power station and includes one-way machine, the second rechargeable battery that charges to and the power management system that any above-mentioned embodiment provided, the second rechargeable battery is connected with one-way machine that charges, one-way machine that charges and two-way machine parallel connection in inlet wire power that charges. In addition, trade the power station and still include consumer and UPS such as switch board, trade electric equipment, battery transportation equipment, communication cabinet, control communication equipment, lighting apparatus.
The second rechargeable battery is a battery replacement battery which is used for being installed on the electric vehicle to provide electric energy for the electric vehicle, and the unidirectional charger is connected with the incoming line power supply to charge the second rechargeable battery. Incoming power may include, but is not limited to, the electrical grid (providing utility power), the microgrid.
It should be noted that the number of the bidirectional chargers and the first rechargeable batteries in the battery charging station is not limited to one shown in the figure, and a plurality of bidirectional chargers and first rechargeable batteries may also be provided, where each bidirectional charger corresponds to one first rechargeable battery.
The working principle of the power swapping station is described below with reference to fig. 3.
When the incoming line power supply stops supplying power to the electric equipment, the controller sends a power supply request instruction to the bidirectional charger, the bidirectional charger sends a trip signal to the change-over switch after receiving the power supply request instruction, the change-over switch automatically disconnects the electric equipment and the bidirectional charger from the incoming line power supply or sends a trip prompt to remind operation and maintenance personnel to disconnect the electric equipment and the bidirectional charger from the incoming line power supply after receiving the trip signal, the change-over switch feeds back an off-grid confirmation signal to the bidirectional charger after disconnection, and the bidirectional charger releases electric energy of a first charging battery connected with the bidirectional charger to supply power to the electric equipment after receiving the off-grid confirmation signal. At the moment, the first charging battery connected with the bidirectional charger serves as a power supply to provide power for the work of at least one electric device in a control cabinet, a battery replacement device, a communication cabinet, a UPS, a monitoring communication device and a lighting device in the battery replacement station, a loop is formed, and the battery replacement station enters an emergency standby state.
Specifically, after the change-over switch is turned off, the bidirectional charger and the electric equipment are also turned off from the unidirectional charger while being turned off from the incoming line power supply, the electric energy of the first charging battery only supplies power to the electric equipment, so that the power supply time of the electric equipment is prolonged, other equipment normally works except for stopping charging the second charging battery in the power changing station, and the power changing station normally performs power changing operation.
When the power supply of the incoming line power supply is recovered to be normal, namely the incoming line power supply supplies power for the electric equipment normally, the controller sends a power supply stopping instruction to the bidirectional charger, the bidirectional charger stops supplying power for the electric equipment when receiving the power supply stopping instruction and sends a closing signal to the change-over switch, and the change-over switch is automatically closed after receiving the closing signal so as to connect the electric equipment with the incoming line power supply or send a closing prompt to remind operation and maintenance personnel to close the switch. At the moment, the emergency standby power function of the power exchanging station is closed, the incoming line power supply supplies power to the electric equipment in the power exchanging station, and the power exchanging station returns to normal work. Meanwhile, the bidirectional charger can be switched to a charging mode to charge the first rechargeable battery.
In one embodiment, the controller is further configured to detect whether there is a second rechargeable battery with a remaining capacity greater than the capacity threshold when the power supply capacity of the first rechargeable battery does not satisfy the power demand of the power consumption equipment. And if the second rechargeable battery with the residual electric quantity larger than the electric quantity threshold value exists, switching the second rechargeable battery to supply power to the electric equipment.
Wherein, the electric quantity threshold value can be set according to actual conditions by oneself. The electric quantity threshold corresponding to the second rechargeable battery may be the same as or different from the electric quantity threshold corresponding to the first rechargeable battery.
In one embodiment, when it is determined that the power supply capacity of the first rechargeable battery does not meet the power consumption requirement of the power consumption equipment and the second rechargeable battery with the residual capacity greater than the capacity threshold exists, the controller sends a switching prompt to prompt an operation and maintenance worker to switch the bidirectional charger to be connected with the second rechargeable battery with the residual capacity greater than the capacity threshold. In this embodiment, when the power consumption demand of consumer is not satisfied to first rechargeable battery's power supply capacity, will trade the electric battery and be used for supplying power for the consumer, can prolong the time length for the consumer power supply, wait for the inlet wire power to resume and supply power for the consumer.
Specifically, when it is determined that the power supply capacity of the first rechargeable battery does not meet the power consumption requirement of the electric equipment and a second rechargeable battery with the residual electric quantity greater than the electric quantity threshold exists, the second rechargeable battery with the residual electric quantity greater than the electric quantity threshold is controlled to be disconnected with the one-way charger, then the second rechargeable battery is transported to the position of the two-way charger through the battery replacement equipment or the battery transport equipment and then is controlled to be connected with the two-way charger, so that the two-way charger releases the second rechargeable battery to supply power to the electric equipment. Further, in order to avoid power failure in the process of switching from the first rechargeable battery to the second rechargeable battery, a standby bidirectional charger is preset, when the power supply capacity of the first rechargeable battery does not meet the power consumption requirement of the electric equipment and a second rechargeable battery with the residual electric quantity greater than the electric quantity threshold exists, the second rechargeable battery and the unidirectional charger are disconnected and are transported to the position of the standby bidirectional charger, the second rechargeable battery is connected with the standby bidirectional charger and starts to discharge, then the first rechargeable battery is disconnected with the bidirectional charger, or the bidirectional charger connected with the first rechargeable battery is directly switched to charge the first rechargeable battery. And when the second rechargeable battery is switched, the controller sends a switching instruction to the bidirectional charger, and the bidirectional charger is switched to be connected with the second rechargeable battery with the residual electric quantity greater than the electric quantity threshold value when receiving the switching instruction.
In one embodiment, the controller further monitors states of the first rechargeable battery and the second rechargeable battery in the power exchanging station, and if a thermal runaway condition occurs in the first rechargeable battery and/or the second rechargeable battery, the first rechargeable battery and/or the second rechargeable battery in the thermal runaway condition are determined as a problem battery, and the problem battery is taken out, so that more serious loss of the battery in the power exchanging station due to the thermal runaway problem is avoided under special conditions.
Fig. 4 is a flowchart of a power management method for a power swapping station according to an exemplary embodiment of the present invention, which is applied to the power swapping station provided in any of the above embodiments, and a power management process is described below with reference to fig. 1 to 3. Referring to fig. 4, the power management method for a power swapping station includes the following steps:
The embodiment of the utility model provides an in, when the inlet wire power stops to supply power for consumer, the electric energy that the two-way charger can release first rechargeable battery supplies power for consumer, also promptly under the circumstances of trading the whole outage in station, still can supply power for the consumer in trading the station, maintains and trades the normal operation in station, provides reliable electric service of trading for the user.
In one embodiment, the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment further comprises the following steps: triggering the bidirectional charger to send a trip signal to the change-over switch; and after the tripping signal is received, the change-over switch disconnects the electric equipment from the incoming line power supply.
The embodiment of the utility model provides an in, the trip signal is sent to change over switch after the bidirectional charging machine receives the power supply request instruction to the disconnection consumer is connected with the inlet wire power, thereby the bidirectional charging machine of being convenient for can be connected smoothly with the consumer. And the bidirectional charger and the electric equipment are disconnected from the unidirectional charger while being disconnected from the incoming line power supply, and the electric energy of the first rechargeable battery only supplies power to the electric equipment, so that the power supply time of the electric equipment is prolonged.
In one embodiment, the step of switching the switch to disconnect the powered device from the incoming power source further comprises: triggering a change-over switch to send an off-grid confirmation signal to a bidirectional charger; and after receiving the off-grid confirmation signal, the bidirectional charger executes the step of releasing the electric energy of the first charging battery connected with the bidirectional charger to supply power to the electric equipment.
The embodiment of the utility model provides an in, two-way charger is receiving when leaving the net affirmation signal, just controls two-way charger and supplies power for the consumer, rather than receiving the power supply request instruction and supply power for the consumer promptly to can avoid the two-way charger that consumer and inlet wire power supply not disconnected connection lead to and be connected with the invalid of consumer.
In one embodiment, the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment further comprises the following steps: and triggering the uninterruptible power supply to supply power to the bidirectional charger.
The embodiment of the utility model provides an in, uninterrupted power source UPS can ensure the normal communication and the use of two-way charger, avoids two-way charger to lose the unable normal communication of electricity and leads to unable for the consumer power supply.
In one embodiment, the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment further comprises the following steps: detecting whether the power supply capacity of the first rechargeable battery meets the power utilization requirements of all power utilization equipment; if the power supply capacity of the first rechargeable battery does not meet the power utilization requirements of all the power utilization equipment, acquiring the power supply priority of each pre-stored power utilization equipment; and controlling the bidirectional charger to supply power to the partial electric equipment with the power supply priority ranked in the front.
The embodiment of the utility model provides an in, when rechargeable battery's power supply ability is not enough for all consumer supplies power, preferentially give important consumer power supply, ensure important consumer can normal operating.
In one embodiment, the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment further comprises the following steps: detecting whether the current power supply capacity of the first rechargeable battery meets the power utilization requirement of the power utilization equipment; if the power supply capacity of the current first rechargeable battery does not meet the power consumption requirement of the electric equipment, detecting whether the first rechargeable battery with the residual power larger than the power threshold exists or not; and if the first rechargeable battery with the residual electric quantity larger than the electric quantity threshold exists, switching the first rechargeable battery with the residual electric quantity larger than the electric quantity threshold to supply power to the electric equipment.
The embodiment of the utility model provides an in, can prolong the time length for the consumer power supply through setting up a plurality of first rechargeable battery, wait for the inlet wire power to resume for the consumer power supply.
In one embodiment, the step of controlling the bidirectional charger to release the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment further comprises the following steps: detecting whether the power supply capacity of the first rechargeable battery meets the power utilization requirement of the power utilization equipment; if the power supply capacity of the first rechargeable battery does not meet the power consumption requirement of the electric equipment, detecting whether a second rechargeable battery with the residual electric quantity larger than an electric quantity threshold exists or not; and if the second rechargeable battery with the residual electric quantity larger than the electric quantity threshold value exists, switching the second rechargeable battery to supply power to the electric equipment.
The embodiment of the utility model provides an in, second rechargeable battery can prolong the time length for the consumer power supply, waits for the inlet wire power to resume for the consumer power supply.
Corresponding to the power management method embodiment of the aforesaid power station that trades, the utility model discloses the embodiment of the power management device of trading the power station is still provided.
Fig. 5 is a schematic block diagram of a power management device of a power swapping station according to an exemplary embodiment of the present invention, which is applied to any one of the power swapping stations, where the power management device includes:
the detection module 51 is configured to detect whether the incoming line power supply stops supplying power to the electrical equipment in the power swapping station;
the control module 52 is configured to control the bidirectional charger to release electric energy of the first rechargeable battery connected to the bidirectional charger to supply power to the electrical equipment when the incoming line power supply stops supplying power to the electrical equipment in the power conversion station.
Optionally, the power management device further comprises:
the trigger module is used for triggering the bidirectional charger to send a trip signal to the selector switch;
and the receiving module is used for receiving the tripping signal and then disconnecting the electric equipment from the incoming line power supply through the change-over switch.
Optionally, the triggering module is further configured to trigger the switch to send an off-grid confirmation signal to the bidirectional charger;
and after receiving the off-grid confirmation signal, the bidirectional charger executes the step of releasing the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment.
Optionally, the triggering module is further configured to trigger an uninterruptible power supply to supply power to the bidirectional charger.
Optionally, the method further comprises:
the detection module is used for detecting whether the power supply capacity of the first rechargeable battery meets the power consumption requirements of all power consumption equipment;
if the power supply capacity of the first rechargeable battery does not meet the power consumption requirements of all the electric equipment, the power supply priority of each electric equipment is obtained in advance, and a control module is called to control the bidirectional charger to supply power to the electric equipment with the power supply priority in the front ranking.
Optionally, the method further comprises:
the detection module is used for detecting whether the current power supply capacity of the first rechargeable battery meets the power utilization requirement of the power utilization equipment; if the current power supply capacity of the first rechargeable battery does not meet the power consumption requirement of the electric equipment, detecting whether the first rechargeable battery with the residual power larger than the power threshold exists; if the first rechargeable battery with the residual electric quantity larger than the electric quantity threshold exists, calling a control module to switch the first rechargeable battery with the residual electric quantity larger than the electric quantity threshold to supply power to the electric equipment.
Optionally, the method further comprises:
the detection module is used for detecting whether the power supply capacity of the first rechargeable battery meets the power utilization requirement of the power utilization equipment; if the power supply capacity of the first rechargeable battery does not meet the power utilization requirement of the electric equipment, detecting whether a second rechargeable battery with the residual electric quantity larger than an electric quantity threshold exists or not; and if a second rechargeable battery with the residual electric quantity larger than the electric quantity threshold exists, calling a control module to switch the second rechargeable battery to supply power to the electric equipment.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the invention. One of ordinary skill in the art can understand and implement without inventive effort.
Fig. 6 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present invention, which shows a block diagram of an exemplary electronic device 60 suitable for implementing an embodiment of the present invention. The electronic device 60 shown in fig. 6 is only an example, and should not bring any limitation to the functions and the application range of the embodiment of the present invention.
As shown in fig. 6, the electronic device 60 may be embodied in the form of a general purpose computing device, which may be, for example, a server device. The components of the electronic device 60 may include, but are not limited to: the at least one processor 61, the at least one memory 62, and a bus 63 connecting the various 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 volatile memory, such as Random Access Memory (RAM)621 and/or cache memory 622, and may further include Read Only Memory (ROM) 623.
The memory 62 may also include a program tool 625 (or utility tool) 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 of which, or some combination thereof, may comprise an implementation of a network environment.
The processor 61 executes various functional applications and data processing, such as the methods provided by any of the above embodiments, by running a computer program stored in the memory 62.
The electronic device 60 may also communicate with one or more external devices 64 (e.g., keyboard, pointing device, etc.). Such communication may be through an input/output (I/O) interface 65. Also, the model-generating electronic device 60 may also communicate with one or more networks (e.g., 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 the other modules of model-generated electronic device 60 over bus 63. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the 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, to name a few.
It should be noted that although in the above detailed description several units/modules or sub-units/modules of the electronic device are mentioned, such a division is merely exemplary and not mandatory. Indeed, according to embodiments of the invention, the features and functions of two or more units/modules described above may be embodied in one unit/module. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.
The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the method provided in any of the above embodiments.
More specific examples, among others, that the readable storage medium may employ may include, but are not limited to: a portable disk, a hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.
In a possible implementation manner, the embodiment of the present invention can also be implemented in the form of a program product, which includes program code for causing a terminal device to execute a method for implementing any of the embodiments described above when the program product runs on the terminal device.
Where program code for carrying out the invention is written in any combination of one or more programming languages, the program code may execute entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device, partly on a remote device or entirely on the remote device.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (9)
1. The power supply management system is applied to a power exchanging station and used for supplying power to electric equipment in the power exchanging station; the power management system comprises a controller, a bidirectional charger and a first charging battery, wherein the bidirectional charger is respectively and electrically connected with the controller and the first charging battery;
when an incoming line power supply of the power conversion station stops supplying power to the electric equipment, the controller sends a power supply request instruction to the bidirectional charger;
and when the bidirectional charger receives the power supply request instruction, the bidirectional charger releases the electric energy of the first rechargeable battery connected with the bidirectional charger to supply power to the electric equipment.
2. The power management system of claim 1, further comprising a diverter switch; the change-over switch is respectively connected with the bidirectional charger, the electric equipment and the incoming line power supply,
and the bidirectional charger sends a tripping signal to the selector switch after receiving the power supply request instruction, and the selector switch disconnects the power utilization equipment from the incoming line power supply after receiving the tripping signal.
3. The power management system according to claim 2, wherein the change-over switch feeds back an off-grid confirmation signal to the bidirectional charger after disconnecting the electrical equipment from the incoming power supply, and the bidirectional charger releases electric energy of a first rechargeable battery connected to the bidirectional charger to supply power to the electrical equipment after receiving the off-grid confirmation signal.
4. The power management system of claim 1, further comprising an uninterruptible power supply, wherein the uninterruptible power supply is 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.
5. The power management system of any of claims 1-4, further comprising a memory electrically connected to the controller; the power supply priority of each piece of electric equipment is prestored in the memory;
when the power supply capacity of the first rechargeable battery does not meet the power consumption requirements of all the electric equipment, the controller sends a switching instruction to the bidirectional charger, so that the bidirectional charger is switched to be connected with the electric equipment with the power supply priority ranking at the front.
6. The power management system of any of claims 1-4, wherein the power management system comprises a plurality of the first rechargeable batteries;
when the current power supply capacity of the first rechargeable battery does not meet the power consumption requirement of the electric equipment, the controller is further configured to acquire the remaining power of each first rechargeable battery and send a switching instruction to the bidirectional charger, so that the bidirectional charger is switched to be connected with the first rechargeable battery with the remaining power being greater than the power threshold.
7. The power management system of claim 6, wherein the power management system comprises a plurality of bidirectional chargers, each charger corresponding to a first rechargeable battery.
8. A power swapping station is characterized by comprising a one-way charger, a second rechargeable battery and the power management system as claimed in any one of claims 1 to 7, wherein the second rechargeable battery is connected with the one-way charger, and the one-way charger and the two-way charger are connected in parallel with an incoming power supply.
9. The charging station according to claim 8, wherein the controller is further configured to obtain a remaining power of each second rechargeable battery, and send a switching instruction to the bidirectional charger, so that the bidirectional charger is switched to be connected with the second rechargeable battery with the remaining power greater than the power threshold.
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| CN202123442550.3U CN217282355U (en) | 2021-12-30 | 2021-12-30 | Power management system and power conversion station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125511A1 (en) * | 2021-12-30 | 2023-07-06 | 奥动新能源汽车科技有限公司 | Power supply management system, battery swapping station and power supply management method and apparatus therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125511A1 (en) * | 2021-12-30 | 2023-07-06 | 奥动新能源汽车科技有限公司 | Power supply management system, battery swapping station and power supply management method and apparatus therefor |
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