静态电压崩溃点的实用解法  

A practical method of tracing static voltage collapse point

作　　者：戴伟华[1] 熊宁[1] 李倡洪[1] 

机构地区：[1]南昌大学信息工程学院,江西南昌330029

出　　处：《继电器》2007年第5期25-28,共4页Relay

摘　　要：提出一种基于连续潮流求取电压稳定临界点的新方法,使其能够在考虑约束的情形下适用于任意形式的负荷增长方式,大大提高了求解精度。在求解临界点的过程中,以弱节点电压作为连续变量,先直接大步长降到临界点附近,再用小步长追踪临界点,这样大大减少了求解中间运行点的数量,使其更快地找到电压崩溃临界点。最后在IEEE14节点系统的计算证实了该方法的快速、有效性。A new method based on continuation power flow is proposed for tracing crisis point of voltage stability, which can deal with all kinds of increasing type of load and meet the demand of constraint of reactive power. Voltage which is regarded as continuous variable drop with large step length in order to approach to crisis point at first, then the crisis point is traced by small step length. In this case, the number of middle point between original point and crisis point is reduced largely and the crisis point is traced more quickly. At last, the validity andthe speed of this method is verified by calculation of IEEE 14 bus system.

关 键 词：稳定裕度 连续潮流 负荷增长方式 变步长 电压稳定临界点 

分 类 号：TM714.2[电气工程—电力系统及自动化]