文档介绍：第 33 卷第 13 期中国电机工程学报 May 5, 2013
150 2013 年 5 月 5 日 Proceedings of the CSEE ©2013 .
文章编号:0258-8013 (2013) 13-0150-07 中图分类号:TM 74 文献标志码:A 学科分类号:47040
考虑分布式电源随机特性的配电网
电压质量概率评估
张喆,李庚银,魏军强
(新能源电力系统区 102206)

Probabilistic Evaluation of Voltage Quality in works Considering the
Stochastic Characteristic of Distributed Generators
ZHANG Zhe, LI Gengyin, WEI Junqiang
(State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources (North China Electric Power
University), Changping District, Beijing 102206, China)
ABSTRACT: To evaluate the impact on the power quality of estimate method,2-PEM)的基础上,提出一种改进的 2 点估
distribution system by the stochastic power output of 计法,用以求解含分布式电源配电系统概率潮流
distributed generators and loads, this paper proposed a (probabilistic load flow,PLF),从而得到电压的概率统计值。
modified 2-point estimate (2-PEM) method based on the 然后结合半不变量理论与 Cornish-Fisher 级数展开得到其相
present 2-point estimate method, the probabilistic statistic 应的概率密度曲线以及含分布式电源节点的电压越限概率,
values of voltages would be derived via the solution of 对含有分布式电源的配电网电压质量进行概率评估。最后,
probabilistic load flow (PLF). Combing with theory of 采用改进的 IEEE 34 节点辐射型配电系统作为算例,通过计
semi-invariant and Cornish-Fisher series expansion, the 算并与通过 Monte-Carlo 仿真获取的离散的概率值相比较,
probabilistic evaluation for voltage quality of the distrib