基于PSO的SVC附加阻尼控制器参数优化设计

Parameter Optimization Design of PSO-based SVC Additional Damping Controller

提出了1种静止无功补偿器SVC附加阻尼控制器的PSO优化设计方法,建立了含SVC多机系统的类似单机无穷大Phillips-Heffron模型,并结合粒子群算法PSO,对SVC附加阻尼控制器的相关参数进行了优化设计。该方法以最优控制原理为基础,综合考虑了SVC附加阻尼控制器与励磁系统的性能,将控制器的参数设计转化为带有不等式约束的优化问题。此外,通过Matlab/Simulink搭建了2机测试系统,进行了仿真验证。仿真结果表明,当系统遭遇不同的故障和扰动时,所设计的SVC附加阻尼控制器均能很好地抑制系统低频振荡,提高系统的暂态稳定性。

In this paper,a kind of optimization design method of particle swarm optimization（PSO）for additional damping controller（ADC）of static var compensator（SVC）is proposed. The similar PhillipsHeffron model of the single-machine infinite-bus including SVC multiple systems is set up and optimization design of related parameters of SVC additional damping controller is performed. In this method,the most optimization control principle is taken as a base,the performance of SVC additional damping controller and exciting system is considered comprehensively to convert the parameter design of the controller into the issue with constraint inequality. Moreover,2-machine testing system is set up through Matlab/Simulink and simulation verification is performed. It is shown by the simulation result that when the system encounters different fault and fluctuation, the designed SVC additional damping controller can suppress the low frequency oscillation of system well and improve transient stability of system.