基于等效电气距离的电压稳定性指标计算  

Voltage stability index based on equivalent electrical distance

作　　者：王剑 张壬寅 张蕾[3] 

机构地区：[1]山东山大电力技术有限公司,山东济南250061 [2]漳州电业局,福建漳州363000 [3]山东青年干部管理学院总务处,山东济南277102

出　　处：《山东大学学报（工学版）》2009年第6期130-134,共5页Journal of Shandong University（Engineering Science）

摘　　要：电力系统电压稳定问题的难点在于薄弱节点的确定和临界状态及其稳定裕度的求取.基于功率传输路径和静态等值的思想,采用局部电压稳定指标L确定电力系统薄弱节点,利用相对电距离计算电压稳定裕度,IEEE 39节点系统和山东电网的实际算例表明,该方法物理意义明确,计算速度比较快,适用于电压稳定性的在线检测.The main problem of static voltage stability in power systems is to determine the critical bus, the critical voltage and the voltage stability margin. Based on the power transmission path theory and the equivalent theory, the local voltage stability index was used to confirm the voltage stabihty bus, and the equivalent electrical distance was used to obtain the voltage stability margin. The practical results of IEEE 39 nodes system and Shandong power grid that this method was fast in computation and more suitable for on line voltage security monitor.

关 键 词：静态电压稳定 功率传输路径 等效电气距离 

分 类 号：TM712[电气工程—电力系统及自动化]