Analysis of Multi-Machine Power System with PSS using Participation Factor Method

Jarapala Siva Naik, R. Thirumalaivasan, M. Janaki
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Abstract

The power system stabilizer (PSS) plays a key role in multi-machine power systems. The main objective of PSS is to provide damping of the rotor oscillations, whenever there is a transient disturbance. In this paper, eigenvalues and participation factor are used to identify the oscillatory modes in a multi-machine system without and with PSS. The transient simulation is carried out to validate the steady state model. The proposed methods runs for N-number of buses and M-number of generators. The study system comprises a 4-generators and 10-buses two area multi-machine system. The results obtained on the study system show that oscillatory response of speed deviation and rotor angle is well damped with PSS.
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基于参与因子法的PSS多机电力系统分析
电力系统稳定器在多机电力系统中起着至关重要的作用。PSS的主要目的是提供转子振荡的阻尼,无论何时存在瞬态扰动。本文利用特征值和参与因子来辨识无PSS和有PSS的多机系统的振动模态。通过瞬态仿真验证了稳态模型的有效性。所提出的方法在n个母线和m个发电机的情况下运行。研究系统包括4台发电机和10台母线两区多机系统。研究结果表明,PSS能很好地抑制转速偏差和转子角度的振荡响应。
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