Fuzzy Switched Active Disturbance Rejection Voltage Control of Generators With Load Switchings

This brief proposes the fuzzy switched active disturbance rejection controller (FSADRC) for generators with load switchings. First, to better reflect the working dynamics of generators, the switched Takagi-Sugeno (T-S) fuzzy models are established. Then, the FSADRC is designed, which can eliminate the load-switching effect on the system performance. By constructing the mode-dependent Lyapunov function, the stability is analyzed for the closed-loop system with the persistent dwell-time restriction. Subsequently, a new criterion is proposed to optimize the controller gains and ensure the
$L_{\infty}$
performance. Finally, superiorities are validated through the DC-link voltage control experiments.