Rapid Real-time Discrimination Method of Transient Voltage Sability Based on Wide-area Response

2017 2nd Asia Conference on Power and Electrical Engineering

能源学;电工学

Hao, Xu^1 ; Gang, Wang^1

College of Electric Power, South China University of Technology, Guangdong Province, Guangzhou, China^1

关键词: Guangdong power grid;    Integration method;    Parameter variable;    Quantitative indicators;    Real time measurements;    Recognition accuracy;    Transient voltage stability;    Wide- area measurement systems (WAMS);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/199/1/012060/pdf
DOI  :  10.1088/1757-899X/199/1/012060

来源: IOP

【 摘 要 】

Quick identify of transient voltage stability of power system, which is based on real-time measurement information from wide-area measurement system (WAMS) is a hotspot issue of today's power engineering. This paper presents a method to early predict the transient voltage stability. The proposed technique uses disturbed voltage-time integral to construct the quantitative indicator which can achieve rapid real-time determination of transient voltage stability. In order to ensure the speed and accuracy of transient voltage stability determination, each of the key parameter variables in the integration method was set reasonably. The proposed method has been tested on a practical example of Guangdong power grid, the results verify that it can guarantee a high recognition accuracy rate while shortening the duration of determination.