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柔性交流输电装置(flexible AC transmission system,FACTS)在提升电网安全稳定和运行效率方面发挥了重要的作用,研究多FACTS控制器间的交互影响及协调控制方法具有重要的现实意义。研究多静态同步补偿器(staticsynchronous compensator,STATCOM)在提升系统阻尼方面的协调控制问题,并针对多个STATCOM阻尼控制器之间存在的负交互影响,提出一种基于模式自适应直接搜索(mesh adaptive direct search,MADS)算法的多STATCOM阻尼控制器协调控制方法,该方法使用频域设计思想保证了控制器多运行方式下的鲁棒性,同时使用MADS算法保证多控制器的协调运行能力,最终实现多台STATCOM阻尼控制器的协调运行与控制。仿真结果验证了该方法的正确性以及在实际电网中应用的可行性。
Flexible AC transmission system (FACTS) plays an important role in improving the security, stability and operation efficiency of power grids. It is of great practical significance to study the interaction between multiple FACTS controllers and the coordinated control methods. In this paper, the coordinated control problem of staticsynchronous compensator (STATCOM) to improve the system damping is studied. Aiming at the negative interaction between many STATCOM damping controllers, a mesh adaptive direct search (MADS) algorithm for multi-STATCOM damping controller. This method uses the frequency-domain design idea to ensure the robustness of the controller under multi-operation mode. At the same time, MADS algorithm is used to ensure the coordinated operation of multi-controller. Finally, Achieve multi-station STATCOM damping controller coordinated operation and control. The simulation results verify the correctness of the method and the feasibility of the application in the actual power grid.