状态约束发电机励磁和SVC协调无源控制

Coordinated Passivity Controller Design for SVC and Generator Excitation with State Constraint

基于Backstepping方法和无源性理论设计了电力系统发电机励磁和静止无功补偿器的协调控制器。在设计过程中，没有对系统进行线性化，保留了电力系统的非线性特征，同时，考虑了电气阻尼参数不确定性和状态约束问题。控制器设计分两步完成，首先，利用Backstepping方法对无励磁控制系统SVC调节器的控制输入进行设计：然后，利用协调无源性方法。对发电机励磁控制电压进行控制器设计，从而保证整个系统功角和电压的双重稳定。最后。通过MATLAB仿真验证所设计的协调控制器的有效性。

In the paper, based on the Backstepping method and passivity theory, a coordinated controller for SVC and generator excitation is designed. In the design process, there is no linearization in order to retain the non-linear characteristic of the power system, while the parameter uncertainty and state constraints are taken into account. The controller is completed in two steps. Firstly, a non-excitation control system＇s SVC controller is designed by using the Backstepping method. Then, an excitation controller is designed by using the coordinated passivity approach. Thus, the stability of the overall system＇s angle and voltage is ensured. Finally, according to the MATLAB simulation results, the effectiveness of the control method can be verified.