摘要
分布式电源渗透率的快速增加使得低压配电网中出现严重的电压问题,而电动汽车(Electric Vehicle,EV)的广泛应用使得其参与电压控制成为了可能。提出了一种利用电动汽车的电池能量管理和分布式光伏阵列的无功、有功控制,来调节光伏发电渗透率较高的配电网中的电压。考虑到电动汽车电池容量和荷电状态(SoC)的不同,提出基于一致性算法的分布式控制策略来有效利用EV电池的有限存储容量。在此基础上,提出基于分布式光伏组件无功调节和有功调节的本地电压控制策略,并计算分布式光伏的无功与有功控制调节量。通过仿真分析,验证了文中所提的分布式一致性电压协同控制的有效性,可以有效缓解由反向潮流引起的电压升高,并补偿峰值负载导致的电压降落,消除由分布式电源大量接入带来的电压越限问题。
The rapid increase of penetration in distributed generation has caused serious voltage problems in low-voltage distribution networks.The widespread use of electric vehicles(EVs)has made it possible to participate in voltage control.This paper proposes a battery energy management using electric vehicles and reactive and active power control of distributed photovoltaic arrays to regulate the voltage with high permeability of photovoltaic power generation in the distribution networks.Firstly,considering the difference in battery capacity and state of charge(SoC)of electric vehicles,a distributed control strategy based on consensus algorithm is proposed to effectively utilize the limited storage capacity of EV batteries.On this basis,a local voltage control strategy based on reactive power regulation and active regulation of distributed photovoltaic modules is proposed.Through simulation analysis,the effectiveness of the proposed control scheme in this paper is verified,which can alleviate the voltage rise caused by the reverse power flow and compensate the voltage drop caused by the peak load.It can eliminate the voltage overrun brought by large-scale access by the distributed power supply.
作者
王晓梅
卢芳
卢京祥
杨思渊
艾芊
王家武
晋京
Wang Xiaomei;Lu Fang;Lu Jingxiang;Yang Siyuan;Ai Qian;Wang Jiawu;Jin Jing(Rizhao Power Supply Company of State Grid Electric Powe Company,Rizhao 276826,Shandong,China;School of Electronic Information and Electrical Engineering,Shanghai Jiaotong University,Shanghai 200240,China)
出处
《电测与仪表》
北大核心
2020年第11期101-107,134,共8页
Electrical Measurement & Instrumentation
关键词
电动汽车
分布式光伏
电压控制
一致性算法
主动配电网
electric vehicle
distributed photovoltaic
voltage control
consensus algorithm
active distribution network
作者简介
王晓梅(1968—),女,高级工程师,研究方向为电力科技环保管理。Email:may6769@sina.com;卢芳(1971—),女,高级工程师,研究方向为电网调度运行、电网运行与控制、继电保护;卢京祥(1972—),男,高级工程师,研究方向为电网运行管理。
