【摘要】 提出了灰狼优化算法与差分进化算法相结合的多机PSS参数设计方案。首先建立了发电机、励磁系统、PSS的线性化微分方程;其次构建了基于机电模式阻尼比的优化函数,通过DE-GWO算法进行迭代搜索,实现对不同运行方式下机电振荡模式阻尼系数的最大化寻优;最后在PSASP中搭建了云南电网滇西南地区部分电网,通过非线性时域仿真验证了基于DE-GWO优化算法的PSS在不同运行方式下抑制机电振荡的有效性和鲁棒性,提高了系统的阻尼。更多还原

【Abstract】 This paper proposes a PSS parameter design scheme of multi-machine combining grey wolf optimization algorithm and differential evolution algorithm.First,this paper establishes the linearized differential equations for generators,excitation systems and PSS.Then,this paper constructs an optimization function based on the damping ratio of electromechanical mode and maximizes the optimization of the damping coefficient of the electromechanical oscillation mode under different operating modes through the iterative search by DE-GWO algorithm.Finally,this paper builts some prower grids in the southwestern region of Yunnan Power Grid in PSASP and verifies the effectiveness and robustness of suppressing electromechanical oscillation in different operating modes of PSS optimized by DE-GWO algorithm through the nonlinear time domin simulation.更多还原