Study on emergency load shedding based on frequency and voltage stability

被引：0

作者：

Zhang, Zhichao ^{[1
,2
]}

Wang, Zengping ^{[1
]}

Fang, Panyu ^{[1
]}

机构：

[1] State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China

[2] College of Mechanical and Electronic Engineering, Shihezi University, Shihezi 832003, China

来源：

International Journal of Control and Automation | 2014年 / 7卷 / 02期

关键词：

Electric power plant loads - Electric load shedding;

D O I：

10.14257/ijca.2014.7.2.12

中图分类号：

学科分类号：

摘要：

Under frequency load shedding is widely used under emergency situations in the power system. It significantly ensures frequency stability of power system by dropping excessive loads at certain places. In order to improve the traditional UFLS schemes, the rate offrequency change is taken into consideration when calculating the quantity of active power imbalance in the power system. The measure factors of frequency change rate are analyzed and a new function is created to calculate the active power imbalance based on frequency and voltage. Moreover, a new method which utilizes frequency and voltage sensitivity to determine the location and corresponding quantity of load shedding is proposed. Voltagestability should be maintained at the time of recovering system frequency stability. The simulation results based on IEEE39 buses system show that the new self-adaptive scheme of load shedding is more reasonable and superior. © 2014 SERSC.

引用

页码：119 / 130