讨论了 STATCOM的鲁棒非线性控制设计问题。利用直接反馈线性化技术 (DFL)把STATCOM非线性模型转换成线性模型 ,并利用鲁棒控制器的设计方法消除模型中不确定参数的影响。设计过程中只需要不确定参数的边界 ,所设计控制器简单、有效 ,并能保证系统在所有参数范围内的渐进稳定性。 3母线电力系统的仿真结果表明该控制器在系统具有不确定参数时能取得良好的电压调节性能 The robust nonlinear control design of STATCOM is discussed. The direct feedback linearization (DFL) is used to convert the STATCOM nonlinear model into a linear model and the robust controller design method is used to eliminate the influence of uncertain parameters in the model. In the design process, only the boundary of uncertain parameters is needed. The designed controller is simple and effective, and can guarantee the gradual stability of the system in all parameter ranges. The simulation results of 3-bus power system show that the controller can achieve good voltage regulation performance when the system has uncertain parameters