STATCOM鲁棒非线性控制

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。

NONLINEAR ROBUST CONTROL OF STATCOM

This paper is concerned with the robust nonlinear control of the static com pensator STATCOM . The Direct Feedback L inearization DFL technique is employed to transform the nonlinear m odel of the STATCOM system into a linear form.A robust controller design approach is used to deal with the param etric uncertainties.The proposed controller has a simple structure,performing with great robustness and effectiveness.It can ensure that the controlled system is asym ptotically stable within a wide range of system param eters,as long as the boundaries of the param eters are given.The simulation results obtained from a three- bus power system show that the controller can achieve good voltage regulation in the presence of parameter uncertainties.