摘要
提出了一种利用白噪声作为激励实现多机电力系统稳定器 ( PSS)协调优化的方法。这种方法可以在保留系统所有非线性特性的条件下 ,同时优化多个发电机的 PSS参数 ,减小被白噪声激励系统的目标函数值 ,提高系统阻尼 ,从而避免了针对某一频率设计 PSS参数时的局限性。实例仿真结果表明 ,在电力系统运行条件变化的很大范围内 ,运用这种方法设计的
A novel coordinate optimization method for optimizing PSS parameters in multi-machine power systems in terms of white noises is proposed. The method can improve the system damping by optimizing the PSS parameters, in which more than one generator are stimulated by white noises and simultaneously reverse the non-linearity of the system model. Furthermore. it avoids the limitation of conventional PSS design aiming at the single oscillation frequency. Simulation results show that the proposed method can improve system damping in a wide range of system operating conditions.
出处
《电力系统自动化》
EI
CSCD
北大核心
2001年第19期15-18,44,共5页
Automation of Electric Power Systems
关键词
电力系统稳定器
协调控制
非线性
优化
白噪声
多机系统
Computer simulation
Damping
Natural frequencies
Nonlinear control systems
System stability
White noise
