【摘要】 本文介绍了无源性系统理论及控制方法,并结合开关变换器脉动和非线性的特点,针对具体的Buck电路,求出储能函数、并根据输出反馈无源定理,构造了DC-DC开关变换器的非线性最优控制规律,仿真和实验,结果验证了控制策略的优良性。更多还原

【Abstract】 This paper presents the passivity system theory and the passive optimal control approach. Then, the storage function for the PWM DC-DCbuck converter is constructed by used of the output feedback passive theory. The nonlinear optimal control law under a type ofquadric-performance is obtained. Simulations and experiment with a buck converter have demonstrated the robustness of the controlstrategy and verified the theoretical predictions.更多还原