Charging control method suitable for electric vehicle charging station

A charging control method and technology for electric vehicles, which are applied in electric vehicle charging technology, charging stations for charging electric vehicles and mobile devices, etc. issues of balance

Active Publication Date: 2017-12-22
CEEC JIANGSU ELECTRIC POWER DESIGN INST
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Problems solved by technology

AC charging equipment is generally 7Kw, 220V single-phase power supply. In electric vehicle charging stations where a large number of AC charging piles are concentrated, if vehicles are charged randomly and disorderly, serious three-phase

Method used

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  • Charging control method suitable for electric vehicle charging station
  • Charging control method suitable for electric vehicle charging station
  • Charging control method suitable for electric vehicle charging station

Examples

Experimental program
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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] Such as figure 1 As shown, a charging control method suitable for an electric vehicle charging station includes the following steps:

[0048] Step 1: When vehicle k enters the venue, collect the admission time Estimated time of departure The remaining power SOC of the vehicle k , Expected power S Bk , charging load curve

[0049] Such as figure 2 As shown, step 2: Assume that vehicle k joins phase A, and from the current time t 0 need to wait Δt Ak time to start charging, then its charging load curve can be expressed as If the vehicle k reaches the expected power S when it leaves the field Bk , then Δt Ak need to meet Can be considered

[0050] Step 3: Reorder all queuing vehicles in phase A, and construct the charging waiting time of queuing vehicles as a vector Among them, N A The total number of vehicles in the waiting queue for phase ...

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Abstract

The invention discloses a charging control method suitable for an electric vehicle charging station. A certain number of alternating-current charging piles which supply power by using 220V single phase alternating current are arranged in the charging station, the entrance time, the remaining electric quantity, the estimated leaving time, the charging load curves and other information of entrance vehicles are collected, the collected charging load curves are added into load curves of all current phases, the optimal solution of each phase is obtained through an optimization algorithm, wherein the optimal solution of each phase is a charging queuing sequence, which enables the three-phase load balance degree highest, of all charging vehicles including new entrance vehicles in the whole station. The solution, in which the load balance degree is highest, in the optimal solutions of the three phases serves as the global optimal solution, charging facilities, which are connected with the phases corresponding to the entrance vehicles, are assigned to the entrance vehicles respectively, and the charging queuing sequence corresponding to the entrance vehicles is adopted to serve as the current queuing sequence of charging vehicles; optimization solving is conducted on each entrance vehicle. According to the charging control method, the charging time period of each vehicle is reasonably arranged, so that the three-phase load balance degree keeps optimal all the time.

Description

technical field [0001] The invention relates to a charging control method suitable for an electric vehicle charging station, belonging to the technical field of electric vehicle charging. Background technique [0002] Electric vehicle charging methods can be divided into AC charging and DC charging. The advantages of DC charging are high charging power and short charging time, but the charging equipment is expensive and causes great damage to the battery. Although AC charging takes a long time to charge, it does little damage to the battery. , and the equipment is relatively cheap. [0003] AC charging equipment can be configured in the electric vehicle charging station to provide slow charging service for electric vehicles with long-term parking conditions. AC charging equipment is generally 7Kw, 220V single-phase power supply. In electric vehicle charging stations where a large number of AC charging piles are concentrated, if vehicles are charged randomly and disorderly, ...

Claims

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Application Information

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IPC IPC(8): B60L11/18H02J7/00
CPCB60L53/63H02J7/0027Y02T10/70Y02T10/7072Y02T90/12Y02T90/16
Inventor 张曌王旗王尉苏麟卫银忠吴锁平王晓虎赵阳钱康闫安心秦华谈金龙王政高田济源
Owner CEEC JIANGSU ELECTRIC POWER DESIGN INST
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