Title :
PMU Configuration Scheme of Regional Power System and Dynamic Voltage Stability Online Evaluation of Substation
Author :
Niu, Dongxiao ; Liu, Zhuangzhi ; Yang, Honglei
Author_Institution :
North China Electr. Power Univ., Beijing, China
Abstract :
By use of power system analysis software BPA, the power flow of a certain regional power network was simulated; From this the nodes and zones with weak voltage stability were found out , and an optimal configuration scheme of pharos measurement units(PMUs) in this regional power network was proposed. By means of indentifying equivalent impedances with recursive least square method, the voltage stability of this regional power network was evaluated by dynamic simulation, so the correctness and effectiveness of the proposed optimal configuration scheme of pharos measurement units was validated. It was also pointed out that whether the nodal voltage was stable or not can be judged by the index of impedance modulus ratio.
Keywords :
least squares approximations; power system stability; substations; voltage regulators; PMU configuration scheme; dynamic voltage stability online evaluation; phasor measurement units; power flow; power system analysis software BPA; recursive least square method; regional power network; substation; voltage stability; Impedance; Measurement units; Phasor measurement units; Power system analysis computing; Power system dynamics; Power system measurements; Power system simulation; Power system stability; Substations; Voltage;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448971
