基于萤火虫算法的TCIPC功率振荡阻尼控制器的设计

Design of TCIPC power oscillation damping controller based on firefly algorithm

在研究可控相间功率控制器(TCIPC)基本原理的基础上,分析了电感、电容支路对带TCIPC联络线传输功率的调节作用及TCIPC阻尼系统功率振荡的机理,设计了一种TCIPC功率振荡阻尼控制器,提出了一种混合的萤火虫算法和模式搜索技术(h-FAPS),该技术综合萤火虫算法的全局搜索能力和模式搜索算法的局部搜索能力,实现了控制器的参数优化。为了解决使用远距离信号可能会影响控制器可靠性的缺点,采用由本地可测量的有功功率信号改进的远程速度偏差信号作为控制器的输入信号。搭建带TCIPC的单机无穷大系统简化模型进行仿真,仿真结果验证了控制器的有效性,该控制器在系统受到干扰后具有良好的阻尼性能,可以起到提高系统稳定性的作用。

Based on the research of the fundamental principle of thyristor controlled interphase power controller（ TCIPC）,this paper analyzed the control characteristic impacted by the inductor,capacitor branch of the link transmission power with TCIPC and mechanism of power oscillation in TCIPC damped system. A power oscillation damping controller with TCIPC was designed and a hybrid of firefly algorithm and pattern search（ h-FAPS） technique which integrated the global search ability of FA and local search ability of PS was proposed. The parameter optimization of the controller was realized. In order to solve the shortcoming that the use of long distance signal may affect the reliability of the controller,the improved remote speed deviation signal was the locally measurable line active power signal. The simplified model of the single machine infinite bus system with TCIPC was built. The simulation results verify the effectiveness of the controller,and it has good damping performance when the system is disturbed,so it can improve the stability of the system.