摘要
分布式电源(DG)发展迅速,给配电网带来的影响日益显著,其中对配电网电压的影响尤其明显。研究了配电网中DG的本地电压控制策略。首先,证明了配电网中DG接入点最容易出现电压越限,说明了本地电压控制的可行性。然后,提出了基于无功调节和有功调节的本地电压控制策略,推导出本地无功控制和本地有功控制的调节量表达式,得到调节量为节点电压测量值的线性函数,并给出本地电压控制策略的实现方法。最后,对IEEE 33节点配电系统进行算例分析,结果表明所提的本地电压控制策略可有效地消除DG接入带来的电压越限问题。
The quickly developed DG（Distributed Generation） brings great influence on the distribution network,especially on its voltage. The local voltage control of DGs in the distribution network is studied,which proves that the voltage violation occurs easily at the DG integration points,showing the feasibility of local voltage control. The strategy of local voltage control based on the reactive and active power regulations is proposed and the regulation expressions of local reactive and active power controls are deduced,which are the linear function of nodal voltage measurement. The implementation method of local voltage control strategy is given and the simulative results of IEEE 33-bus system indicate that the proposed strategy can effectively eliminate the voltage violation caused by the DG integration.
出处
《电力自动化设备》
EI
CSCD
北大核心
2016年第9期40-45,共6页
Electric Power Automation Equipment
关键词
分布式电源
本地控制
配电网
电压偏差
distributed power generation
local control
distribution network
voltage deviation
