CN111452649A - Public charging pile management method based on platform area load monitoring and prediction - Google Patents
Public charging pile management method based on platform area load monitoring and prediction Download PDFInfo
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- CN111452649A CN111452649A CN202010234004.1A CN202010234004A CN111452649A CN 111452649 A CN111452649 A CN 111452649A CN 202010234004 A CN202010234004 A CN 202010234004A CN 111452649 A CN111452649 A CN 111452649A
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- 238000007726 management method Methods 0.000 title claims abstract description 23
- 238000012544 monitoring process Methods 0.000 title claims abstract description 11
- 230000002159 abnormal effect Effects 0.000 claims abstract description 4
- 230000002035 prolonged effect Effects 0.000 claims description 3
- 230000001932 seasonal effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
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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
-
- 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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- 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
-
- 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
Abstract
The invention discloses a public charging pile management method based on platform area load monitoring and prediction, which comprises the following steps of: (1) the distribution automation system monitors real-time loads of respective transformer areas and predicts transformer loads of the transformer areas before the day (2) and analyzes chargeable time and chargeable capacity of the current transformer area; (3) pushing the analyzed day-ahead prediction platform chargeable information to a public charging pile management platform, and releasing the charging pile state by the public charging pile management platform; (4) when a rechargeable charging pile is selected, the distribution transformer terminal monitors the load of the distribution area in real time, and if the load is abnormal, the charging is finished; (6) the charging pile for limiting charging provides two options of adjusting the charging time period and prolonging the charging time. The method and the device can predict the station load in advance, realize information sharing, reduce the negative influence of the public charging pile on the safe and economic operation of the distribution station, and solve the problem that the charging load of the electric automobile is not matched with the power supply capacity of the distribution network.
Description
Technical Field
The invention belongs to the power grid technology, and particularly relates to a public charging pile management method based on platform load monitoring and prediction.
Background
With the development of the electric automobile industry, the disordered charging of the electric automobile brings great challenges to the safe, economic and reliable operation of a power grid. Taking a certain platform area as an example, the daily maximum load moment is 15: 00-16: 00, if the electric vehicle is not guided in the time interval, the electric vehicle goes to the public charging pile under the platform area to be charged, the problem of heavy load and even overload of a distribution transformer can occur, and the safe and economic operation of the platform area is seriously influenced. At present, the following problems exist in the management of the existing public charging piles: (1) the ordered charging method used by the public charging pile is mainly characterized in that when a charging event affects the safe and economic operation of distribution transformer in a distribution area, a mode of reducing charging power or suspending the charging event is adopted afterwards, the load of the distribution area is not predicted in advance, and the charging event cannot be actively avoided in peak time of the power load of the distribution area; (2) the distribution network automation and the public charging pile platform are independent respectively, effective information sharing integration is not available, and an information isolated island exists; (3) fill electric pile and appear suspending the charging incident because of the district capacity restriction, nevertheless can't inform next chargeable time quantum, the electric automobile of being not convenient for judges whether wait for or change other electric piles of filling.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a public charging pile management method based on platform area load monitoring and prediction, which can predict platform area load in advance, realize information sharing and inform the next chargeable time period when charging is limited.
The technical scheme is as follows: the method comprises the following steps:
(1) the distribution automation system monitors real-time loads of respective transformer areas and predicts the loads of transformers in the transformer areas before the day;
(2) based on the station area day-ahead distribution transformer load prediction, the distribution automation system analyzes the chargeable time and the chargeable capacity of the current station area;
(3) the distribution automation system pushes analyzed information of the chargeable time and the chargeable capacity of the forecast distribution area to a public charging pile management platform in the day ahead, and the public charging pile management platform issues charging piles in three states of 'idle', 'chargeable' or 'charging limit';
(4) if the electric automobile selects the rechargeable charging pile, the step (5) is carried out; if the charging pile is selected to be limited to charge, entering the step (6);
(5) when the electric automobile selects the 'chargeable' charging pile to charge, the transformer substation terminal monitors the load of the transformer substation in real time, and if the load is abnormal, the charging is finished;
(6) when the electric automobile selects the charging of the charging pile of the 'charging limit', the charging pile of the 'charging limit' provides two options: firstly, adjusting a charging time period and prompting a next chargeable time period; secondly, the charging power is reduced, and the charging time is prolonged.
In the step (1), the distribution automation system monitors the real-time load of each distribution area and predicts the day-ahead transformer load of the distribution area by using each distribution area distribution terminal.
In the step (1), the distribution automation system predicts the transformer load of the transformer in the transformer area before the day according to the historical load, the environment and the seasonal factors.
In the step (3), each charging pile is provided with a unique charging pile ID, and the charging pile equipment corresponding to the charging pile ID is identified between the distribution automation system and the public charging pile management platform.
In the step (5), if the real-time load of the distribution room during the charging period has large prediction deviation with the load before the day, the charging pile manages according to 'charging limit', and the step (6) is entered; the power utilization safety of the transformer area is guaranteed.
Has the advantages that: compared with the prior art, the invention has the beneficial effects that: (1) information sharing is realized between the distribution network automation system and the public charging pile management platform; (2) predicting the load of the transformer area in advance, and actively avoiding the charging at the peak time of the electric load of the transformer area; (3) when a charging suspension event occurs due to the capacity limitation of the platform area, the charging pile can inform the next chargeable time period, so that the electric automobile can conveniently select to continue waiting or replace other charging piles; (4) the problem of the electric automobile charging load is not matched with the power distribution network power supply capacity is solved.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and the attached drawing figures.
As shown in fig. 1, the method for managing a public charging pile based on platform load monitoring and prediction of the present invention includes the following steps:
(1) the distribution automation system monitors real-time loads of respective distribution areas by using distribution terminals of each distribution area, and predicts the loads of transformers in the distribution areas before the day according to factors such as historical loads, environment, seasons and the like;
(2) the method comprises the steps that based on distribution area day-ahead distribution transformer load prediction, a distribution automation system analyzes chargeable time and chargeable capacity of a current distribution area, and according to the principles of time error, valley filling and economy, when time error occurs, charging is staggered with the peak time period of distribution area electricity utilization, so that the charging load is prevented from being overlapped with the peak load of distribution area life and production, valley filling is carried out, charging is carried out in the valley time period of distribution area electricity utilization, the load valley of the distribution area is improved, the charging load is reasonably arranged, a distribution transformer is enabled to operate in an economic operation interval as much as possible, energy is saved, loss is reduced, the distribution area distribution transformer safe economic operation load rate interval is α (for example, 30%) to β (for example, 70%), the interval can be adjusted according to distribution performance, for example, in one day, 9:00-13:00 certain distribution area life and production load exceeds the distribution transformer rated capacity load rate β (for example, 70%), then the public charging pile limits charging service under the distribution area in the time period, the chargeable capacity is β Pr-P (t), wherein the rated capacity of distribution area day (p) (t) refers to the distribution area load prediction;
(3) distribution automation system predicts the chargeable time of platform district and chargeable capacity information propelling movement to public charging stake management platform in the future that analyzes, and each fills electric pile and all is furnished with unique electric pile ID that fills, through filling electric pile ID between distribution automation system and the public charging stake management platform to discern with the electric pile equipment that fills that corresponds. Therefore, the charging pile management platform not only issues whether the public charging pile is idle, but also issues whether the charging pile is chargeable or limited to charge so as to prevent disordered charging from influencing safe and economic operation of the platform area;
(4) if the electric automobile selects the rechargeable charging pile, the step (5) is carried out; if the charging pile is selected to be limited to charge, entering the step (6);
(5) when the electric automobile selects the 'chargeable' charging pile to charge, the transformer substation terminal monitors the load of the transformer substation in real time, and if the load is abnormal, the charging is finished; and (4) if the real-time load of the transformer area and the forecast deviation of the load before the day are large during charging, indicating that the load of the distribution transformer exceeds the available power limit value, managing the charging pile according to 'limited charging' for ensuring the power utilization safety of the transformer area, and entering the step (6).
(6) When the electric automobile selects the charging of the charging pile of the 'charging limit', the charging pile of the 'charging limit' provides two options: firstly, in order to avoid not exceeding the distribution variable available power limit of a distribution area, the charging time period is adjusted and the next chargeable time period is prompted; secondly, the charging power is reduced, and the charging time is prolonged. The electric vehicle selects one of them, and terminates.
According to the invention, the negative influence of the public charging pile on the safe and economic operation of the distribution network area can be reduced, the problem that the charging load of the electric automobile is not matched with the power supply capacity of the distribution network is solved, on one hand, the influence of large-scale random and disordered charging of the electric automobile on the power grid is reduced, on the other hand, the capacity of the power grid accessing to a charging facility is effectively improved, and more charging requirements of the electric automobile are met.
Claims (5)
1. A public charging pile management method based on platform area load monitoring and prediction is characterized by comprising the following steps:
(1) the distribution automation system monitors real-time loads of respective transformer areas and predicts the loads of transformers in the transformer areas before the day;
(2) based on the station area day-ahead distribution transformer load prediction, the distribution automation system analyzes the chargeable time and the chargeable capacity of the current station area;
(3) the distribution automation system pushes analyzed information of the chargeable time and the chargeable capacity of the forecast distribution area to a public charging pile management platform in the day ahead, and the public charging pile management platform issues charging piles in three states of 'idle', 'chargeable' or 'charging limit';
(4) if the electric automobile selects the rechargeable charging pile, the step (5) is carried out; if the charging pile is selected to be limited to charge, entering the step (6);
(5) when the electric automobile selects the 'chargeable' charging pile to charge, the transformer substation terminal monitors the load of the transformer substation in real time, and if the load is abnormal, the charging is finished;
(6) when the electric automobile selects the charging of the charging pile of the 'charging limit', the charging pile of the 'charging limit' provides two options: firstly, adjusting a charging time period and prompting a next chargeable time period; secondly, the charging power is reduced, and the charging time is prolonged.
2. The utility model discloses a public charging pile management method based on platform district load monitoring and prediction, characterized in that: in the step (1), the distribution automation system monitors the real-time load of each distribution area and predicts the day-ahead transformer load of the distribution area by using each distribution area distribution terminal.
3. The utility model discloses a public charging pile management method based on platform district load monitoring and prediction, characterized in that: in the step (1), the distribution automation system predicts the transformer load of the transformer in the transformer area before the day according to the historical load, the environment and the seasonal factors.
4. The utility model discloses a public charging pile management method based on platform district load monitoring and prediction, characterized in that: in the step (3), each charging pile is provided with a unique charging pile ID, and the charging pile equipment corresponding to the charging pile ID is identified between the distribution automation system and the public charging pile management platform.
5. The utility model discloses a public charging pile management method based on platform district load monitoring and prediction, characterized in that: in the step (5), if the real-time load of the distribution room during the charging period has large deviation with the forecast of the load before the day, the charging pile is managed according to 'charging limitation', and the step (6) is entered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010234004.1A CN111452649A (en) | 2020-03-30 | 2020-03-30 | Public charging pile management method based on platform area load monitoring and prediction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010234004.1A CN111452649A (en) | 2020-03-30 | 2020-03-30 | Public charging pile management method based on platform area load monitoring and prediction |
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| CN111452649A true CN111452649A (en) | 2020-07-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290532A (en) * | 2020-08-11 | 2021-01-29 | 国网浙江省电力有限公司双创中心 | Community comprehensive energy system based on electric power Internet of things |
| CN113335121A (en) * | 2021-05-26 | 2021-09-03 | 安徽工程大学 | Off-peak automatic charging method and system of shared charging pile |
| CN114056161A (en) * | 2021-10-26 | 2022-02-18 | 许继电源有限公司 | Charging pile ordered charging system and control method |
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| US20180147951A1 (en) * | 2015-05-08 | 2018-05-31 | Shandong University | Electric vehicle charging pile control system and method considering grid frequency safety |
| CN109980667A (en) * | 2019-02-13 | 2019-07-05 | 国电南瑞科技股份有限公司 | A kind of orderly charging method for electric car |
| CN110774929A (en) * | 2019-10-25 | 2020-02-11 | 上海电气集团股份有限公司 | Real-time control strategy and optimization method for orderly charging of electric automobile |
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2020
- 2020-03-30 CN CN202010234004.1A patent/CN111452649A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180147951A1 (en) * | 2015-05-08 | 2018-05-31 | Shandong University | Electric vehicle charging pile control system and method considering grid frequency safety |
| CN106849109A (en) * | 2017-03-15 | 2017-06-13 | 国网江苏省电力公司连云港供电公司 | A kind of urban distribution network load control method accessed for scale charging pile |
| CN109980667A (en) * | 2019-02-13 | 2019-07-05 | 国电南瑞科技股份有限公司 | A kind of orderly charging method for electric car |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290532A (en) * | 2020-08-11 | 2021-01-29 | 国网浙江省电力有限公司双创中心 | Community comprehensive energy system based on electric power Internet of things |
| CN112290532B (en) * | 2020-08-11 | 2023-10-17 | 国网浙江省电力有限公司双创中心 | Community comprehensive energy system based on electric power Internet of things |
| CN113335121A (en) * | 2021-05-26 | 2021-09-03 | 安徽工程大学 | Off-peak automatic charging method and system of shared charging pile |
| CN113335121B (en) * | 2021-05-26 | 2023-04-25 | 安徽工程大学 | Peak-shifting type automatic charging method and system for sharing charging pile |
| CN114056161A (en) * | 2021-10-26 | 2022-02-18 | 许继电源有限公司 | Charging pile ordered charging system and control method |
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Application publication date: 20200728 |
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