摘要
Abstract
One of the most important functions of static synchronous series compensator (SSSC) is power oscillation damping system.Considering the change process of SSSC internal dynamics, namely the dynamic adjustment process among output voltage amplitude of controller, phase angle changes and the DC side capacitor, on this basis, the SSSC dynamic model is established.The control system transfer function is obtained by deriving the relationship of pulse width modulation coefficient with the amount of change in the electrical angular velocity variation, by controlling the parameters of the control system, and thus achieving SSSC controls, and optimization process of adjustment of parameters in control system achieves by artificial bee colony (ABC).The optimization method takes angular velocity difference as the goal, through continuous iterative update, and finally gets the optimal solution of parameters in control system.Built in MATLAB model, comparing with the conventional PI control simulation results, the proposed optimization method can effectively and quickly adjust control parameters, and then, regulate the SSSC equivalent injection voltage in a better way, which effectively improves the active power transmission capacity in transmission line, and suppresses the system power oscillation in a fast way.关键词
静止同步串联补偿器/控制系统传递函数/人工蜂群算法/阻尼功率振荡Key words
static synchronous series compensator/control system transfer function/artificial bee colony algorithm/damping power oscillation分类
信息技术与安全科学
