摘要
目前对于静态电压稳定控制问题,一般采用连续潮流计算系统的静态电压稳定裕度,通过非线性最优潮流计算控制措施,计算量较大,不适合在线应用。本文提出一种通过减少系统薄弱支路功率提高静态电压稳定裕度的校正控制方法,并采用文献的方法快速计算静态电压稳定裕度,具有计算量小、速度快等特点。我国某实际的682节点973支路系统的算例表明本文方法简单、实用。
Presently, continuation power flow （CPF） and nonlinear optimal power flow （NOPF） are used in making control strategies to avoid voltage collapse, which is time consuming for on-line use. This paper deals with determination of corrective control strategies to keep voltage stability margin above some minimal value. The weak branches are identified using reactive power loss and a linear optimization model with the objective of decreasing the power flow at weak branches is performed. The method in reference [13] is used in calculating voltage stability margin, and is of small computational amount ＆ fast calculation. Case studies are presented on a real system to illustrate the usefulness of the proposed method.
出处
《陕西电力》
2008年第12期44-47,共4页
Shanxi Electric Power
关键词
电压稳定
校正控制
电力系统
voltage stability
corrective control
power systems
