Identification of voltage stability condition of a power system using measurements of bus variables

The Journal of Engineering

Durlav Hazarika¹  Bani Kanta Talukdar¹  Brajesh Mohan Gupta² 

[1] Department of EE, Assam Engineering College, Guwahati 781013, Assam, India;Department of EE, Girijananda Institute of Management and Technology, Guwahati 781017, Assam, India

关键词: voltage stability condition identification;    bus voltage magnitude;    power system;    electrical network;    current phasors measurements;    bus variables measurements;    voltage phasors measurements;    phasor measurement units;    online methods;    smart energy meter;    PMU-based method;    electrical waves;    PMU;    bus variables;    reactive power;    interconnected power system;    synchronisation;    voltage stability condition;    online monitoring;   

DOI  :  10.1049/joe.2014.0263

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

Several online methods were proposed for investigating the voltage stability condition of an interconnected power system using the measurements of voltage and current phasors at a bus. For this purpose, phasor measurement units (PMUs) are used. A PMU is a device which measures the electrical waves on an electrical network, using a common time source (reference bus) for synchronisation. This study proposes a method for online monitoring of voltage stability condition of a power system using measurements of bus variables namely – (i) real power, (ii) reactive power and (iii) bus voltage magnitude at a bus. The measurements of real power, reactive power and bus voltage magnitude could be extracted/captured from a smart energy meter. The financial involvement for implementation of the proposed method would significantly lower compared with the PMU-based method.

【 授权许可】

CC BY