双轴励磁同步发电机的微分反馈非线性最优励磁控制

本文在微分几何理论的基础上，提出了更简明、更适合工程用的面向多输入系统的微分反馈补偿物理精确线性化方法，解决了电力系统控制设计中的强非线性问题及鲁棒性问题，并据此推导了双轴励磁同步发电机的微分反馈非线性最优励磁控制规律。仿真结果表明，所设计的控制方式能较大幅度地提高系统的动态稳定性和暂态稳定性。

Derivation-Feedback Nonlinear Optimal Excitation Control of Dual-Excited Synchronous Generators

a novel practical and concise design method called physical exact linearization via derivation-feedback compensation, which is based on the differential geometric method, for multi-input nonlinear system is pressented in this paper. The method overcomes the difficulties in controller design caused by strong nonlinearity of the power system and the designed controllers are quite robust for the changeability of the operation point and the configuration of the power system. Using this approach,a derivation-feedback nonlinear optimal excitation controller (DNLOEC) of dual-excited synchronous generator is designed. The computer simulation results on a one-machine infinite-bus power system show that the proposed controller can largely improve both dynamic stability and transient stability of the power system.