一种新型的UPFC控制策略设计.pdfVIP

第 36 卷 第 1 期 继电器 Vol.36 No.1 2008 年 1 月 1 日 RELAY Jan. 1, 2008 一种新型的UPFC控制策略设计 1 2 侯 丽 ，鲁宝春 (1.黄山学院信息工程学院,安徽 黄山 245021; 2.辽宁工业大学信息工程学院,辽宁 锦州 121001) 摘要：针对给定的 UPFC 的控制目标，提出了一种在全论域范围内带有自调整因子的变间距模糊交互控制策略，并将其应用 于 UPFC 的控制系统设计中，减少了多个调整因子寻优的复杂性，克服了等间距模糊量化在提高系统稳态精度和提高系统的 动态性能之间存在的矛盾以及解耦控制在电力线运行点不确定的情况下很难做到精确解耦的缺点。并对含有 UPFC 的单机无 穷大系统进行了仿真研究，仿真结果表明所设计的UPFC控制系统可以有效地控制线路潮流、节点电压和UPFC直流侧电容电 压，并且响应速度快、超调小、控制精度高、鲁棒性强。 关键词: UPFC； 自调整； 变间距； 模糊交互控制 A new control strategy design of unified power flow controller 1 2 HOU Li , LU Bao-chun (1. Information Engineering College, Huangshan University, Huangshan 245021, China; (2.Information Engineering College, Liaoning University of Technology, Jinzhou 121001,China) Abstract: A variable spacing fuzzy mutual control strategy with self-adjusting factor is proposed in the whole field, which aims at the given control object of unified power flow controller in this paper. This strategy is applied to control system of unified power flow controller so as to reduce the complexity of many adjustments factor seeking superiority and overcome the conflict of equal spacing fuzzy quantification between improving stable state precision and the dynamic performance in the whole system as well as the shortcoming that decoupled control is difficult to precise decoupling when the running point of power line is uncertain. Simulation study is applied to a single generator infinity system and simulation result indicates that line power flow, node voltage and direct current side capac