Adaptive Perturbation Rejection Control for a Class of Converter Systems With Circuit Realization
针对脉宽调制DC-DC降压变换器，提出一种鲁棒自适应扰动抑制控制策略，抑制负载变化和外部扰动，并基于电路理论实现等效模拟控制电路，通过仿真和实验验证有效性。
This article is concerned with the robust adaptive control circuit design for pulse wide modulation (PWM)-based dc–dc buck converters with load variations and exogenous disturbances. A robust adaptive perturbation rejection control strategy is first developed to suppress time-varying and state-dependent perturbations, which are composed of load variations and disturbances. Then, equivalent analog control circuits of the adaptive control strategy are implemented on the basis of the circuit theory. Bounded tracking of the closed-loop converter system in the presence of perturbations is achieved based on the Lyapunov stability theorem. Simulations and experimental results are provided to validate the efficiency of the proposed adaptive perturbation rejection control strategy in a dc–dc buck converter system.