CN113580975A - Method for improving charging efficiency under complex power supply condition of charging station transformer - Google Patents
Method for improving charging efficiency under complex power supply condition of charging station transformer Download PDFInfo
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- CN113580975A CN113580975A CN202110942648.0A CN202110942648A CN113580975A CN 113580975 A CN113580975 A CN 113580975A CN 202110942648 A CN202110942648 A CN 202110942648A CN 113580975 A CN113580975 A CN 113580975A
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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
- B60L53/31—Charging columns specially adapted for 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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/63—Monitoring or controlling charging stations in response to network capacity
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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
- B60L53/66—Data transfer between charging stations and vehicles
- B60L53/665—Methods related to measuring, billing or payment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
- H02J3/144—Demand-response operation of the power transmission or distribution network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
- H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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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
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a method for improving charging efficiency under the condition of complex power supply of a charging station transformer, which comprises the following steps: s1: the charging pile management platform acquires the load of a non-charging area, and calculates the residual load of the current platform pile according to the capacity of the transformer; s2: and judging the calculated residual load, if the calculated residual load is less than 0, issuing the limited power of the charging pile by platform broadcasting, and otherwise, issuing the increased power of the charging pile by platform broadcasting. According to the method for improving the charging efficiency of the charging station transformer under the complex power supply condition, the idle loads of other lines of the transformer are fully utilized, the maximum output power of the charging pile is adjusted in real time through the management platform, the user can be ensured to be charged stably and continuously at a normal charging speed, meanwhile, the situation that a special person continuously manages the charging pile is not needed, and the situation that the transformer is overloaded for a long time to cause faults or fire disasters due to negligence of personnel can be avoided.
Description
Technical Field
The invention relates to the technical field of new energy electric vehicle charging station construction, in particular to a method for improving charging efficiency under the condition of complex power supply of a charging station transformer.
Background
With the rapid increase of the number of electric vehicles, the construction of charging stations falls into a bottleneck, and the construction of charging stations is restricted by the field and the capacity of transformers, so how to maximize the capacity of transformers to provide charging services for more vehicles is a problem worthy of consideration of operation managers.
In order to improve the utilization rate of a field and serve more vehicles at the same time in the market at present, piles are generally distributed as much as possible, and three solutions are provided in consideration of the problem of transformer capacity: firstly, the power of a single pile is reduced, and the total power of all piles is close to the chargeable power of a transformer; secondly, a person specially manages the charging stations, and the number of charging vehicles is limited when the power of the transformer is close to full load; thirdly, after detecting that the total charging power reaches the set power, the management platform adopts a queuing mechanism for the newly issued charging users;
the scheme can lead the charging speed of a user to be slow, and the rest capacity of the transformer cannot be effectively utilized when other loads or other pile ends of the transformer are idle, so that the efficiency is low;
the second scheme needs management of special persons, and the transformer is overloaded for a long time due to negligence of the personnel to cause faults or fire disasters;
the third scheme can not utilize other idle loads of the transformer and a queuing mechanism can cause the user experience to be poor;
therefore, a method for improving charging efficiency under the condition of complicated power supply of the charging station transformer needs to be designed for solving the problems.
Disclosure of Invention
The invention aims to provide a method for improving charging efficiency of a charging station transformer under a complex power supply condition, and aims to solve the problems that the charging speed of a user is reduced due to the fact that single pile power is reduced, the residual capacity of the transformer cannot be effectively utilized when other loads of the transformer or other pile ends of the transformer are idle, the efficiency is low, the labor cost of special management is high, the transformer is overloaded for a long time due to negligence of personnel to cause faults or fire disasters, other idle loads of the transformer cannot be utilized by a queuing mechanism, and user experience is poor due to the queuing mechanism.
In order to achieve the purpose, the invention provides the following technical scheme: a method for improving charging efficiency under a complex power supply condition of a charging station transformer comprises the following steps:
s1: the charging pile management platform acquires the load of a non-charging area, and calculates the residual load of the current platform pile according to the capacity of the transformer;
s2: and judging the calculated residual load, if the calculated residual load is less than 0, issuing the limited power of the charging pile by platform broadcasting, and otherwise, issuing the increased power of the charging pile by platform broadcasting.
Preferably, the technical scheme adopted by the method for improving the charging efficiency under the condition of complex power supply of the charging station transformer is as follows:
on site, electric meters are additionally arranged on main lines of other loads, a module is installed as a virtual pile to upload power information of the current load to a management platform, and the platform controls the charging piles through corresponding algorithms by comparing the total power of the current charging piles with the rated power of a transformer to balance the load of the transformer;
further, if the loads of the transformer except the charging pile of the platform are dispersed, the virtual pile can be added at each key point to collect power, and the platform carries out accumulation operation on different piles.
Preferably, the load of the transformer in S1 is divided into two major parts:
firstly, the charging pile part is directly communicated with a management platform, and the management platform can control the output power of the charging pile;
and the other loads represent uncontrollable loads of the management platform, including but not limited to domestic electricity or charging loads of other operators, an electric meter is additionally arranged on a main line or a related secondary line of the loads for collecting power, and the virtual pile is used for communicating a control panel of the charging pile with the electric meter and uploading power information to the management platform.
Preferably, the control flow for determining the calculated remaining load in S2 is:
the management platform acquires real-time power of the entity pile and the virtual pile through heartbeat messages of the charging pile, and calculates the real-time power of the entity pile and power of other piles stored in the database to obtain whether the power of the entity pile exceeds the maximum power of the current entity pile or not, so that tolerance coefficients are increased on the basis of the maximum power for preventing over-frequent adjustment;
then obtaining the actual working percentage of the entity piles according to the algorithm, storing the actual working percentage, and transmitting the actual working percentage to all the entity piles, wherein the power can be reduced to the required power by theoretically once adjustment;
when the excess power is vacated by other loads or the maximum power of the entity pile is improved due to the fact that part of car owners finish charging, the platform is triggered to judge the condition whether to improve the power, and when the power is improved to the limit of one hundred percent, the platform does not send a power improving request any more.
Compared with the prior art, the invention has the beneficial effects that: according to the method for improving the charging efficiency of the charging station transformer under the condition of complex power supply, the load utilization rate of the transformer can be improved to the maximum extent, the operation efficiency of a charging pile is improved, and the method contributes to the green new energy industry;
the idle load of other circuits of make full use of transformer, through the maximum output power of management platform real-time adjustment electric pile that fills, when guaranteeing that the user can the stable continuous charging of normal charge speed, do not need the incessant continuous management of special messenger, can avoid personnel's carelessness to lead to the transformer to transship the condition appearance that causes trouble or conflagration for a long time.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a block diagram of the modules of the present invention;
FIG. 3 is a flow chart of the algorithm control of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a method for improving charging efficiency of a charging station transformer under a complex power supply condition comprises the following steps:
s1: the charging pile management platform acquires the load of a non-charging area, and calculates the residual load of the current platform pile according to the capacity of the transformer;
s2: and judging the calculated residual load, if the calculated residual load is less than 0, issuing the limited power of the charging pile by platform broadcasting, and otherwise, issuing the increased power of the charging pile by platform broadcasting.
The technical scheme adopted by the method for improving the charging efficiency under the condition of complex power supply of the charging station transformer is as follows:
on site, electric meters are additionally arranged on main lines of other loads, a module is installed as a virtual pile to upload power information of the current load to a management platform, and the platform controls the charging piles through corresponding algorithms by comparing the total power of the current charging piles with the rated power of a transformer to balance the load of the transformer;
further, if the loads of the transformer except the charging pile of the platform are dispersed, the virtual pile can be added at each key point to collect power, and the platform carries out accumulation operation on different piles.
As shown in fig. 2, the load of the transformer in S1 is divided into two major parts:
firstly, the charging pile part is directly communicated with a management platform, and the management platform can control the output power of the charging pile;
and the other loads represent uncontrollable loads of the management platform, including but not limited to domestic electricity or charging loads of other operators, an electric meter is additionally arranged on a main line or a related secondary line of the loads for collecting power, and the virtual pile is used for communicating a control panel of the charging pile with the electric meter and uploading power information to the management platform.
As shown in fig. 3, the control flow for determining the calculated remaining load in S2 is:
the management platform acquires real-time power of the entity pile and the virtual pile through heartbeat messages of the charging pile, and calculates the real-time power of the entity pile and power of other piles stored in the database to obtain whether the power of the entity pile exceeds the maximum power of the current entity pile or not, so that tolerance coefficients are increased on the basis of the maximum power for preventing over-frequent adjustment;
then obtaining the actual working percentage of the entity piles according to the algorithm, storing the actual working percentage, and transmitting the actual working percentage to all the entity piles, wherein the power can be reduced to the required power by theoretically once adjustment;
when the excess power is vacated by other loads or the maximum power of the entity pile is improved due to the fact that part of car owners finish charging, the platform is triggered to judge the condition whether to improve the power, and when the power is improved to the limit of one hundred percent, the platform does not send a power improving request any more.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A method for improving charging efficiency under the condition of complex power supply of a charging station transformer is characterized by comprising the following steps: the method for improving the charging efficiency of the charging station transformer under the condition of complex power supply comprises the following steps:
s1: the charging pile management platform acquires the load of a non-charging area, and calculates the residual load of the current platform pile according to the capacity of the transformer;
s2: and judging the calculated residual load, if the calculated residual load is less than 0, issuing the limited power of the charging pile by platform broadcasting, and otherwise, issuing the increased power of the charging pile by platform broadcasting.
2. The method for improving charging efficiency in the complex power supply condition of the charging station transformer as claimed in claim 1, wherein: the technical scheme adopted by the method for improving the charging efficiency under the condition of complex power supply of the charging station transformer is as follows:
on site, electric meters are additionally arranged on main lines of other loads, a module is installed as a virtual pile to upload power information of the current load to a management platform, and the platform controls the charging piles through corresponding algorithms by comparing the total power of the current charging piles with the rated power of a transformer to balance the load of the transformer;
further, if the loads of the transformer except the charging pile of the platform are dispersed, the virtual pile can be added at each key point to collect power, and the platform carries out accumulation operation on different piles.
3. The method for improving charging efficiency in the complex power supply condition of the charging station transformer as claimed in claim 1, wherein: the load of the transformer in S1 is divided into two parts:
firstly, the charging pile part is directly communicated with a management platform, and the management platform can control the output power of the charging pile;
and the other loads represent uncontrollable loads of the management platform, including but not limited to domestic electricity or charging loads of other operators, an electric meter is additionally arranged on a main line or a related secondary line of the loads for collecting power, and the virtual pile is used for communicating a control panel of the charging pile with the electric meter and uploading power information to the management platform.
4. The method for improving charging efficiency in the complex power supply condition of the charging station transformer as claimed in claim 1, wherein: the control flow for determining the calculated remaining load in S2 is:
the management platform acquires real-time power of the entity pile and the virtual pile through heartbeat messages of the charging pile, and calculates the real-time power of the entity pile and power of other piles stored in the database to obtain whether the power of the entity pile exceeds the maximum power of the current entity pile or not, so that tolerance coefficients are increased on the basis of the maximum power for preventing over-frequent adjustment;
then obtaining the actual working percentage of the entity piles according to the algorithm, storing the actual working percentage, and transmitting the actual working percentage to all the entity piles, wherein the power can be reduced to the required power by theoretically once adjustment;
when the excess power is vacated by other loads or the maximum power of the entity pile is improved due to the fact that part of car owners finish charging, the platform is triggered to judge the condition whether to improve the power, and when the power is improved to the limit of one hundred percent, the platform does not send a power improving request any more.
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| CN202110942648.0A CN113580975A (en) | 2021-08-17 | 2021-08-17 | Method for improving charging efficiency under complex power supply condition of charging station transformer |
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| CN202110942648.0A CN113580975A (en) | 2021-08-17 | 2021-08-17 | Method for improving charging efficiency under complex power supply condition of charging station transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114506237A (en) * | 2022-03-16 | 2022-05-17 | 广西电力职业技术学院 | Power electronic transformer and control method thereof |
| CN115713326A (en) * | 2023-01-10 | 2023-02-24 | 佰聆数据股份有限公司 | Data-driven power supply service channel energy efficiency analysis method and device |
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| DE102019130337A1 (en) * | 2019-11-11 | 2021-05-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Load management system and method for regulating such a load management system |
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2021
- 2021-08-17 CN CN202110942648.0A patent/CN113580975A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110682823A (en) * | 2018-07-05 | 2020-01-14 | 邬超慧 | Charging control method and system for electric automobile |
| CN108923485A (en) * | 2018-07-13 | 2018-11-30 | 国网重庆市电力公司电力科学研究院 | A kind of residential area charging pile Poewr control method |
| DE102019130337A1 (en) * | 2019-11-11 | 2021-05-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Load management system and method for regulating such a load management system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506237A (en) * | 2022-03-16 | 2022-05-17 | 广西电力职业技术学院 | Power electronic transformer and control method thereof |
| CN114506237B (en) * | 2022-03-16 | 2023-10-24 | 广西电力职业技术学院 | Power electronic transformer and control method thereof |
| CN115713326A (en) * | 2023-01-10 | 2023-02-24 | 佰聆数据股份有限公司 | Data-driven power supply service channel energy efficiency analysis method and device |
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