A corrective load shedding control scheme to prevent voltage collapse

作者：Cai Guanglin^*; Zhang Yongjun; Cai Zexiang; Yu Tao

来源：IPEC 2007 Meeting, Singapore, Singapore, 2007-12-03 to 2007-12-06.

• load shedding
• voltage stability
• optimal multiplier power flow
• sensitivity
• linear programming

This paper proposes a corrective load shedding algorithm to restore power flow solvability of system after severe contingencies. Firstly, contingency parameterization power flow is constructed to describe a set of multiple contingencies, including generator, HVDC link, ac line and transformer. The post-contingency critical point is quick determined by optimal multiplier power flow and a simple optimization-based outage parameter updating procedure. At the nose point, the sensitivity analysis is performed to select the most effective control measure. Then, the corrective load shedding sensitivity-based linear programming model is constructed to improve the stability margin. The numerical simulations on a practical 1621 buses system testify the proposed method can prevent system from voltage collapse effectively.

• 出版日期2007
• 单位华南理工大学