Study on a New-Type Phase Adaptive Power System Stabilizer and Its Simulation

doi:10.11930/j.issn.1004-9649.201610053

Abstract

Abstract: The hysteretic characteristic of generator excitation system weakens generator damping, thereby increasing the risk of low frequency oscillation. Most typical power system stabilizer(PSS) models use multistage advance steps to compensate the hysteretic characteristics, which results in limited gains and insufficient damping of middle-low frequencies. A new PSS design idea is proposed in this paper, in which the input is a synthetic phasor of active power negative variation and rotating speed variation, and the phase advances automatically. It can solve the problem of multistage advance compensations. Theoretical analysis and simulation calculation have verified the adaptive phase ability of the new PSS and its ability for suppressing the low frequency oscillation, recovering from large-disturbance faults and the reverse regulating effects.

Key words: power system stabilizer, low frequency oscillation, phase adaptive ability, design idea, new type PSS, simulation research

CLC Number:

TM712

LU Cencen, WU Kuayu, WU Long, HAN Bing, SHEN Yijun, LU Haiqing. Study on a New-Type Phase Adaptive Power System Stabilizer and Its Simulation[J]. Electric Power, 2017, 50(9): 77-83.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201610053

https://www.electricpower.com.cn/EN/Y2017/V50/I9/77

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