摘要
静态电压稳定性判据dVL/dPL和dVL/dQL分别计及了负荷节点的有功变化和无功变化与节点电压变化的关系,并没有考虑负荷节点的有功和无功功率共同变化时与节点电压变化的关系。为此,提出等效灵敏度的概念,不仅物理概念更明确,算例表明基于dVL/dQL的等效灵敏度数值能更准确进行弱负荷节点排序。
The static voltage stability criterion dVL/dPL and dVL/dQL only takes load active power variations and load reactive power variations into account, respectively, neglecting the common effect of load power variations on load bus voltage variation. Therefore, a concept of equivalent sensitivity is proposed, which not only has more clear physical meaning, but also simulations show the value of equivalent sensitivity based on dVL/ dQL is best suitable to weak load buses ranking.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2009年第4期106-109,共4页
Proceedings of the CSU-EPSA