Analysis on Governor-side Supplemental Controller for Damping Inter-area Low Frequency Oscillation of Power Systems
Low frequency oscillation (LFO) is harmful to power system security and stability. Damping controller for the inter-area low frequency oscillation of large-scale interconnected power system is one of the focuses of power engineering. The traditional solutions for LFO are the power system stabilizers (PSSs) with local or global signals implemented on the excitations. Noticing that the impact of the prime mover and govern system on LFO was often neglected in previous research, this paper explores the governor-side damping controllers for LFO with wide area measurement system (WAMS). The impact of the governor-side supplemental controller on the damping coefficients of LFO is discussed. The simulation results and analysis, in the light of the classical two-area four-machine power system, by taking the remote signals such as rotor speed which are related to the inter-area LFO as the direct feedback states, show that the governor-side supplemental controller may effectively damp the inter-area oscillation, provided that the control strategic are properly set.
Low frequency oscillation Damping controller Wide Area Measurement System(WAMS) Governor Control
Pinghua AN Ancheng XUE Tianshu BI
Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control, Ministry of Education and School of Electrical & Electronic Engineering, North China Electric Power University, Bejing 102206, PRC
国际会议
The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)
沈阳
英文
1-6
2009-07-05（万方平台首次上网日期，不代表论文的发表时间）