CN110626205A - Charging equipment power distribution method, storage medium and system - Google Patents
Charging equipment power distribution method, storage medium and system Download PDFInfo
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- CN110626205A CN110626205A CN201910949809.1A CN201910949809A CN110626205A CN 110626205 A CN110626205 A CN 110626205A CN 201910949809 A CN201910949809 A CN 201910949809A CN 110626205 A CN110626205 A CN 110626205A
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- 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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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- 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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a charging equipment power distribution method, a storage medium and a system, wherein the method comprises the steps of obtaining the power supply capacity of a charging station and the rated charging capacity of a single charging equipment; determining a full load factor, the full load factor being greater than zero and less than one; determining the number of charging devices in the charging station according to the power supply capacity, the rated charging capacity and the full load factor, wherein the number of the charging devices is larger than the standardized number N; above, the normalized number N satisfies: n ═ PZ/PK|，PZFor the supply of power capacity, PKThe rated charging capacity of a single charging device. According to the scheme, the installation quantity of the charging piles in the charging station is increased, and more vehicles can be charged under the condition that most charging piles do not work at rated charging capacity, so that the power distribution work of a limited power grid can be realizedThe rate is clear, and more reasonable distribution charge capacity fills electric pile to each to can guarantee distribution power's maximum availability factor, guarantee the safe in utilization of configuration power again.
Description
Technical Field
The invention relates to the technical field of charging station design, in particular to a charging equipment power distribution method, a storage medium and a system.
Background
With the increasing popularization of new energy automobiles, the charging demand is more and more vigorous, and the construction of charging stations is more and more, but the electric power distribution of the charging stations generally has the capacity limitation, and the power distribution power of the power grid of one charging station cannot be randomly expanded. For a charging station, the capacity of the power supply has a maximum capacity, and the charging station then configures an appropriate number of charging devices according to the maximum capacity, which in the prior art solution is approximately equal to the product of the number of charging devices in the charging station and the charging rated power of each charging device. For example, the capacity of the power supply is 1250KVA, there are 12 charging devices with power of 100KVA, if there are 12 electric vehicles that are fully charged, it is just matched, but actually, not every electric vehicle is fully charged, and assuming that part of the charging devices use 60KVA for charging, the actual total power output by the charging devices is smaller than the power supply of the power supply, so there is a certain problem of low resource utilization. For an electric vehicle, the charging power during charging varies, for example, a 100KVA charging device, the output power of the charging post may be 10KVA at the beginning of charging the electric vehicle, and then rapidly increases to approximately 100KVA and maintains for a while, and then during the approximately full-charging phase, the power decreases to 30KVA and maintains for a while, and then decreases to 0 again. That is to say, it is inaccurate to determine whether the maximum capacity is exceeded or not according to the power supply capacity of the charging device (for example, charging pile), which may limit the starting and charging of other charging piles under the condition that the actual charging power does not reach the maximum capacity, and cause the resource idle waste.
Disclosure of Invention
The embodiment of the invention aims to provide a charging equipment power distribution method, a storage medium and a system, so as to solve the technical problem of low utilization rate of charging equipment in a charging station in the prior art.
Therefore, the invention provides a power distribution method of a charging device, which comprises the following steps:
acquiring the power supply capacity of a charging station and the rated charging capacity of a single charging device;
determining a full load coefficient, the full load coefficient being greater than zero and less than one;
determining the number of charging devices in the charging station according to the power supply capacity, the rated charging capacity and the full load factor, wherein the number of charging devices is greater than a standardized number N;
above, the normalized number N satisfies: n ═ PZ/PK|，PZFor said power supply capacity, PKThe rated charging capacity of a single charging device.
Optionally, in the above method for allocating power to charging devices, in the step of determining the number of charging devices in the charging station according to the power supply capacity, the rated charging capacity, and the full load factor, the number of charging devices is determined as follows: m ═ PZ/(Q×PK)|；
Wherein Q is the full load factor.
Optionally, in the above method for allocating power to a charging device, a full-load factor is determined, where the full-load factor is greater than zero and less than one, in the step:
the full load factor Q satisfies: q is more than 0.6 and less than 0.9.
Optionally, in the power distribution method for a charging device, the method further includes the following steps:
responding to a charging request of an idle charging device, and acquiring required power according to the charging request;
acquiring the sum of the current output power of all charging equipment which is performing charging;
and if the sum of the required power and the current output power exceeds the power supply capacity of the charging station, rejecting the charging request.
Optionally, in the power distribution method for a charging device, the method further includes the following steps:
responding to a charging request of an idle charging device, and acquiring required power according to the charging request;
acquiring the sum of the current output power of all charging equipment which is performing charging;
and if the sum of the required power and the current output power exceeds the power supply capacity of the charging station, reducing the current output power of at least one charging device to an output power lower limit threshold value so as to enable the sum of the required power and the current output power to be less than or equal to the power supply capacity of the charging station.
Optionally, in the above method for allocating power to charging devices, if the sum of the required power and the current output power exceeds the power supply capacity of the charging station, the step of decreasing the current output power of at least one charging device to an output power lower limit threshold so that the sum of the required power and the current output power is less than or equal to the power supply capacity of the charging station includes:
acquiring the electric quantity saturation degree of a vehicle battery corresponding to each charging device at the current moment;
and sequentially reducing the output power of the charging equipment corresponding to the vehicle battery with the highest electric quantity saturation degree to an output power lower limit threshold value until the sum of the required power and the current output power is less than or equal to the power supply capacity of the charging station.
Optionally, in the power distribution method for a charging device, the method further includes the following steps:
acquiring the sum of the current output power of all charging equipment which is performing charging;
and if the sum of the current output power exceeds the power supply capacity of the charging station, cutting off the charging operation of at least one charging device so as to enable the sum of the current output power to be within the range of the power supply capacity of the charging station.
Optionally, in the above method for allocating power to charging devices, if the sum of the current output powers exceeds the power supply capacity of the charging station, the step of disconnecting the charging operation of at least one charging device so that the sum of the current output powers is within the power supply capacity of the charging station includes:
acquiring the electric quantity saturation degree of a vehicle battery corresponding to each charging device;
and sequentially cutting off the charging equipment corresponding to the vehicle battery with the highest electric quantity saturation degree until the total current output power of the charging equipment which is performing charging is within the power supply capacity range of the charging station.
Optionally, in the power distribution method for a charging device, the method further includes the following steps:
acquiring the sum of the current output power of all charging equipment which is performing charging;
and if the current output power sum exceeds the power supply capacity of the charging station, reducing the current output power of at least one charging device to an output power lower limit threshold value so as to enable the current output power sum to be within the power supply capacity range of the charging station.
Optionally, in the above method for allocating power to charging devices, if the sum of the current output powers exceeds the power supply capacity of the charging station, the step of decreasing the current output power of at least one charging device to the lower threshold of the output power so that the sum of the current output powers is within the range of the power supply capacity of the charging station includes:
acquiring the electric quantity saturation degree of a vehicle battery corresponding to each charging device;
and sequentially cutting off the charging equipment corresponding to the vehicle battery with the highest electric quantity saturation degree until the sum of the current output power is within the power supply capacity range of the charging station.
The invention also provides a storage medium, wherein the storage medium stores program instructions, and a computer reads the program instructions and then executes the power distribution method of the charging equipment.
The invention also provides an electronic device, which comprises at least one processor and at least one memory, wherein program instructions are stored in the at least one memory, and the at least one processor reads the program instructions and then executes the charging device power distribution method.
Compared with the prior art, the technical scheme provided by the embodiment of the invention at least comprises the following steps
Has the advantages that:
the embodiment of the invention provides a charging equipment power distribution method and a storage mediumThe method comprises the steps of obtaining the power supply capacity of a charging station and the rated charging capacity of a single charging device; determining a full load coefficient, the full load coefficient being greater than zero and less than one; determining the number of charging devices in the charging station according to the power supply capacity, the rated charging capacity and the full load factor, wherein the number of charging devices is greater than a standardized number N; above, the normalized number N satisfies: n ═ PZ/PK|，PZFor said power supply capacity, PKThe rated charging capacity of a single charging device. By adopting the scheme, the installation quantity of the charging piles in the charging station is substantially increased, so that more vehicles can be charged under the condition that most of the charging piles do not work at rated charging capacity, the charging capacity can be more reasonably distributed to each charging pile under the condition of limited distribution power of a power grid, the maximum use efficiency of the distribution power can be ensured, and the use safety of the configured power can be ensured.
Drawings
Fig. 1 is a flowchart of a power distribution method of a charging device according to an embodiment of the present invention;
fig. 2 is a flowchart of a power distribution method of a charging device according to another embodiment of the present invention;
FIG. 3 is a schematic block diagram of the operational flow of a vehicle in a charging station when the vehicle requests a charging device to charge it;
fig. 4 is a flowchart of a power distribution method of a charging device according to another embodiment of the present invention;
fig. 5 is a schematic diagram of a hardware connection relationship of an electronic device according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or assembly referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The present embodiment provides a power distribution method for a charging device, which can be applied to a control system of an existing charging station, as shown in fig. 1, and includes the following steps:
s101: acquiring the power supply capacity of a charging station and the rated charging capacity of a single charging device; it can be determined at the beginning of designing the charging station.
S102: determining a full load coefficient, the full load coefficient being greater than zero and less than one; from historical empirical values it can be determined, for example, that the traffic flow, the charging demand, etc. of the location of the reference charging station is between 0.6 and 0.9, preferably between 0.7 and 0.8. Preferably, the number of charging devices is determined by: m ═ PZ/(Q×PK) L, |; wherein Q is the full load factor. Where | | | means taking an integer but truncating a decimal number, e.g. PZ/(Q×PK) When 13.5, the final result is 13.
S103: determining the number of charging devices in the charging station according to the power supply capacity, the rated charging capacity and the full load factor, wherein the number of charging devices is greater than a standardized number N; above, the subjectThe normalization number N satisfies: n ═ PZ/PK|，PZFor said power supply capacity, PKThe rated charging capacity of a single charging device. That is, the standardized number is a calculation method for obtaining the number of charging piles in the prior art, and the number of the charging devices finally obtained by using the scheme in the embodiment is higher than the calculation result.
As an example provided in the background section of the present application, assuming that the power supply capacity is 1250KVA, and the rated power of each charging device is 100KVA, the number of the power supply devices obtained in the present solution is greater than 12, for example, when Q is 0.8, the number of the charging devices obtained in the present solution is M ═ 1250/(0.8 × 100) | 15. By adding a certain amount of charging equipment, the number of the electric vehicles which are charged concurrently is increased, so that more electric vehicles can be charged simultaneously.
According to the technical scheme, the installation quantity of the charging piles in the charging station is increased, most charging piles do not work under the condition of rated charging capacity, more vehicles can be charged, and therefore limited power grid distribution power can be cleared, more reasonable charging capacity is distributed to each charging pile, the maximum use efficiency of the distribution power can be guaranteed, and the use safety of the configuration power is guaranteed.
On the basis of the above scheme, as shown in fig. 2, the charging device power allocation method may further include the following steps:
s104: responding to a charging request of an idle charging device, and acquiring required power according to the charging request; referring to fig. 3, in this step, since the electric vehicle requests to connect the charging gun to realize the charging operation, the charging device reports the charging power (charging power is charging output voltage × charging output current) currently required by the charging device to the ground cloud control background in real time, and the calculation process can be automatically calculated according to the battery capacity of the electric vehicle.
S105: acquiring the sum of the current output power of all charging equipment which is performing charging; that is, the cloud control background can count how many charging devices are working currently and how much the output power of each charging device is according to the charging data reported by each charging device in real time, so that the sum of the current output powers can be determined.
S106: and if the sum of the required power and the current output power exceeds the power supply capacity of the charging station, rejecting the charging request. For example, one may prompt: if the current power is insufficient, please try again later.
In the above scheme, since the number of the charging devices arranged in the charging station is essentially excessive, in order to avoid that all the charging devices exceed the power supply capacity of the charging station when working at the maximum output power, the newly added charging vehicles can be refused to be charged when the newly added charging requirements are excessive, and therefore, the stability and the safety in the charging process are ensured.
As an optional implementation manner, the method for allocating power to a charging device may further include the following steps:
s104', responding to a charging request of an idle charging device, and acquiring required power according to the charging request;
s105', acquiring the sum of the current output power of all charging devices which are performing charging;
and S106', if the sum of the required power and the current output power exceeds the power supply capacity of the charging station, reducing the current output power of at least one charging device to an output power lower limit threshold value so that the sum of the required power and the current output power is less than or equal to the power supply capacity of the charging station.
In the scheme, if the charging requirement of the newly-added charging vehicle can cause the sum of the output power of all the charging devices to exceed the power supply capacity of the charging station, the output power of part of the charging devices can be selectively reduced. For an electric vehicle, the charging power during charging varies, for example, a 100KVA charging device, the output power of the charging post may be 10KVA at the beginning of charging the electric vehicle, then rapidly ramp up to approximately 100KVA and maintain for a while, then during the approximately full-charging phase, the power may drop to 30KVA and maintain for a while, and then drop to 0 again. When the charging stage of the electric vehicle is in the last stage, that is, "the power will be reduced to 30KVA and maintained for a period of time", the charging speed is very slow, the time consumption is long, the charging efficiency is low, and the battery capacity of the electric vehicle is already charged to more than 80%, so that the output power of the charging device corresponding to the part of the vehicle can be preferably reduced to the lower limit threshold of the output power, which can be selected to be between 30% and 50%, preferably 50%, of the rated power, so that the charging operation can be performed on the newly added electric vehicle. Specifically, the charging device that reduces the output power may be selected to the output power lower limit threshold by:
s1: acquiring the electric quantity saturation degree of a vehicle battery corresponding to each charging device at the current moment; it can be determined from the degree of saturation of the vehicle battery which phase the vehicle battery is currently in.
S2: and sequentially reducing the output power of the charging equipment corresponding to the vehicle battery with the highest electric quantity saturation degree to an output power lower limit threshold value until the sum of the required power and the current output power is less than or equal to the power supply capacity of the charging station. As mentioned above, the lower threshold of the output power may be selected to be between 30% and 50%, preferably 50%, of the rated power. The higher the saturation level of the vehicle battery, the lower its charging efficiency, and at this point it may be powered down as long as the minimum power requirement is met. In this step, it is equivalent to that whether the current output power meets the requirement is compared every time the output power of one charging device is reduced, if the current output power does not meet the requirement, the output power of other charging devices is continuously reduced, and if the current output power meets the requirement, the newly-added electric vehicle is directly charged.
On the basis of the above scheme, as shown in fig. 4, the charging device power allocation method may further include the following steps:
s107: acquiring the sum of the current output power of all charging equipment which is performing charging; as described above, the cloud control background can count how many charging devices are currently operating and how much output power of each charging device is according to the charging data reported by each charging device in real time, so that the sum of the current output powers can be determined.
S108: and if the sum of the current output power exceeds the power supply capacity of the charging station, cutting off the charging operation of at least one charging device so as to enable the sum of the current output power to be within the range of the power supply capacity of the charging station. As mentioned above, for an electric vehicle, the charging power during charging varies, for example, a 100KVA charging device, the output power of the charging post may be 10KVA at the beginning of charging the electric vehicle, and then rapidly increases to approximately 100KVA and maintains for a while, and then during the approximately full-charging phase, the power decreases to 30KVA and maintains for a while, and then decreases to 0 again. When the charging stage of the electric vehicle is in the last stage, that is, "the power will drop to 30KVA and remain for a while", the charging speed is very slow, and at this time, the time consumption is long, the charging efficiency is low, and the battery capacity of the electric vehicle is already charged to more than 80%, so that it may be preferable to cut off the charging devices corresponding to the part of vehicles, so that the sum of the current output powers is within the power supply capacity range of the charging station. Specifically, the charging device to be switched off may be selected as follows:
s1': acquiring the electric quantity saturation degree of a vehicle battery corresponding to each charging device;
s2': and sequentially cutting off the charging equipment corresponding to the vehicle battery with the highest electric quantity saturation degree until the total current output power of the charging equipment which is performing charging is within the power supply capacity range of the charging station. As mentioned above, the higher the saturation level of the vehicle battery, the lower the charging efficiency, and the electric quantity of the vehicle battery is enough to meet the normal driving requirement of the vehicle, so that the charging device corresponding to the vehicle can be preferentially cut off.
As an alternative implementation, it can also be ensured that the sum of the output powers of the charging devices does not exceed the charging station supply capacity by:
acquiring the sum of the current output power of all charging equipment which is performing charging; if the sum of the current output powers exceeds the power supply capacity of the charging station, the current output power of at least one charging device is reduced to an output power lower limit threshold value so that the sum of the current output powers is within the power supply capacity range of the charging station, and the output power lower limit threshold value can be selected to be between 30% and 50% of the rated power, and is preferably 50%. That is, the total output power of the charging device can be reduced by reducing the output power of part of the charging device.
Preferably, the method for determining the charging device for reducing the output power to the lower limit threshold of the output power is as follows: acquiring the electric quantity saturation degree of a vehicle battery corresponding to each charging device; and sequentially cutting off the charging equipment corresponding to the vehicle battery with the highest electric quantity saturation degree until the sum of the current output power is within the power supply capacity range of the charging station. As previously mentioned, the higher the saturation level of the vehicle battery, the lower its charging efficiency, and at this time it may be powered down as long as the minimum power requirement is met. In this step, it is equivalent to compare whether the current output power meets the requirement every time the output power of one charging device is reduced, if not, the output power of other charging devices is continuously reduced, and if so, the operation can be performed according to the current power distribution mode.
By the scheme provided by the embodiment, the output power of each charging device which is being charged in the current charging station can be acquired in real time, and the output power is real-time and not the rated output power of the charging device, because the real-time output power can be changed according to the demand values of different electric vehicles. The output power of the charging equipment is adjusted according to the real-time output power change, the sum of the output power of all the charging equipment is ensured not to exceed the power supply capacity of the charging station, and therefore charging stability and safety are ensured.
Example 2
The present embodiment provides a storage medium, where program instructions are stored in the storage medium, and a computer reads the program instructions and then executes the method for allocating power to charging equipment according to any one of the technical solutions in embodiment 1.
Example 3
Fig. 5 is a schematic diagram of a hardware structure of an electronic device for executing a power distribution method of a charging device according to this embodiment, where the electronic device includes:
one or more processors 501 and a memory 502, with one processor 501 being an example in fig. 5. The apparatus performing the charging apparatus power allocation method may further include: an input device 503 and an output device 504. The processor 501, the memory 502, the input device 503 and the output device 504 may be connected by a bus or other means, and fig. 5 illustrates the connection by a bus as an example.
Memory 502, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. The processor 501 executes various functional applications and data processing of the server by running the nonvolatile software programs, instructions and modules stored in the memory 502, that is, the charging device power distribution method of the above method embodiment is realized.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the methods provided in the embodiments of the present application.
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 may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. A charging device power distribution method is characterized by comprising the following steps:
acquiring the power supply capacity of a charging station and the rated charging capacity of a single charging device;
determining a full load coefficient, the full load coefficient being greater than zero and less than one;
determining the number of charging devices in the charging station according to the power supply capacity, the rated charging capacity and the full load factor, wherein the number of charging devices is greater than a standardized number N;
above, the normalized number N satisfies: n ═ PZ/PK|，PZFor said power supply capacity, PKThe rated charging capacity of a single charging device.
2. The charging device power distribution method according to claim 1, wherein in the step of determining the number of charging devices in the charging station based on the power supply capacity, the rated charging capacity, and the full-load factor, the number of charging devices is determined by:
M＝|PZ/(Q×PK)|；
wherein Q is the full load factor.
3. The charging device power distribution method of claim 2, wherein a full-load factor is determined, the full-load factor being greater than zero and less than one in the step of:
the full load factor Q satisfies: q is more than 0.6 and less than 0.9.
4. The charging device power distribution method according to any one of claims 1 to 3, characterized by further comprising the steps of:
responding to a charging request of an idle charging device, and acquiring required power according to the charging request;
acquiring the sum of the current output power of all charging equipment which is performing charging;
and if the sum of the required power and the current output power exceeds the power supply capacity of the charging station, rejecting the charging request.
5. The charging device power distribution method according to any one of claims 1 to 3, characterized by further comprising the steps of:
responding to a charging request of an idle charging device, and acquiring required power according to the charging request;
acquiring the sum of the current output power of all charging equipment which is performing charging;
and if the sum of the required power and the current output power exceeds the power supply capacity of the charging station, reducing the current output power of at least one charging device to an output power lower limit threshold value so as to enable the sum of the required power and the current output power to be less than or equal to the power supply capacity of the charging station.
6. The method according to claim 5, wherein if the sum of the required power and the current output power exceeds the power supply capacity of the charging station, the step of reducing the current output power of at least one charging device to a lower output power threshold value so that the sum of the required power and the current output power is less than or equal to the power supply capacity of the charging station comprises:
acquiring the electric quantity saturation degree of a vehicle battery corresponding to each charging device at the current moment;
and sequentially reducing the output power of the charging equipment corresponding to the vehicle battery with the highest electric quantity saturation degree to an output power lower limit threshold value until the sum of the required power and the current output power is less than or equal to the power supply capacity of the charging station.
7. The charging device power distribution method according to any one of claims 1 to 3, characterized by further comprising the steps of:
acquiring the sum of the current output power of all charging equipment which is performing charging;
and if the sum of the current output power exceeds the power supply capacity of the charging station, cutting off the charging operation of at least one charging device so as to enable the sum of the current output power to be within the range of the power supply capacity of the charging station.
8. The charging device power distribution method according to claim 7, wherein, if the sum of the current output powers exceeds the power supply capacity of the charging station, the step of shutting down the charging operation of at least one charging device so that the sum of the current output powers is within the power supply capacity of the charging station comprises:
acquiring the electric quantity saturation degree of a vehicle battery corresponding to each charging device;
and sequentially cutting off the charging equipment corresponding to the vehicle battery with the highest electric quantity saturation degree until the total current output power of the charging equipment which is performing charging is within the power supply capacity range of the charging station.
9. The charging device power distribution method according to any one of claims 1 to 3, characterized by further comprising the steps of:
acquiring the sum of the current output power of all charging equipment which is performing charging;
and if the current output power sum exceeds the power supply capacity of the charging station, reducing the current output power of at least one charging device to an output power lower limit threshold value so as to enable the current output power sum to be within the power supply capacity range of the charging station.
10. The method according to claim 9, wherein if the sum of the current output powers exceeds the power supply capacity of the charging station, the step of reducing the current output power of at least one charging device to a lower output power threshold value so that the sum of the current output powers is within the power supply capacity of the charging station comprises:
acquiring the electric quantity saturation degree of a vehicle battery corresponding to each charging device;
and sequentially cutting off the charging equipment corresponding to the vehicle battery with the highest electric quantity saturation degree until the sum of the current output power is within the power supply capacity range of the charging station.
11. A storage medium, wherein the storage medium stores program instructions, and a computer reads the program instructions to execute the power distribution method of the charging device according to any one of claims 1 to 10.
12. An electronic device, comprising at least one processor and at least one memory, wherein at least one memory stores program instructions, and when the program instructions are read by at least one processor, the at least one processor performs the charging device power distribution method according to any one of claims 1 to 10.
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| CN202010506501.2A CN111516543B (en) | 2019-10-08 | 2019-10-08 | Charging equipment power distribution method, storage medium and system |
| CN201910949809.1A CN110626205B (en) | 2019-10-08 | 2019-10-08 | Charging equipment power distribution method, storage medium and system |
| CN202010509686.2A CN111645556B (en) | 2019-10-08 | 2019-10-08 | Charging equipment power distribution method, storage medium and system |
| CN202010507101.3A CN111516544B (en) | 2019-10-08 | 2019-10-08 | Charging equipment power distribution method, storage medium and system |
| PCT/CN2020/092882 WO2021068520A1 (en) | 2019-10-08 | 2020-05-28 | Charging-device power distribution method, storage medium, and system |
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| CN202010506501.2A Active CN111516543B (en) | 2019-10-08 | 2019-10-08 | Charging equipment power distribution method, storage medium and system |
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Also Published As
| Publication number | Publication date |
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| CN111516544B (en) | 2022-06-21 |
| CN111645556A (en) | 2020-09-11 |
| CN111516543B (en) | 2022-06-21 |
| CN111516543A (en) | 2020-08-11 |
| WO2021068520A1 (en) | 2021-04-15 |
| CN110626205B (en) | 2020-07-24 |
| CN111516544A (en) | 2020-08-11 |
| CN111645556B (en) | 2022-06-21 |
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