串联谐振变换器的最优轨迹控制

介绍了串联谐振变换器的最优轨迹控制法。首先分析了串联谐振变换器的4种工作模式,然后以谐振电感电流和谐振电容电压为状态变量,基于状态平面分析法推导了系统的最优轨迹控制法则。控制目的是使这两个状态变量跟踪他们期望的稳态轨迹,从而减少暂态振荡并在极短时间内达到稳态。实验结果表明,最优轨迹控制系统的暂态性能非常好。

Optimal Trajectory Control of Series Resonant Converter

The optimal trajectory control method of series resonant converter is introduced.Four operting modes are analyzed, the resonant inductor current and resonant capacitor voltage are taken as state variables and the optimal trajectory control law is derived from the state-plane analysis methed.The control goal is to force the state variables to track their desired trajectory.So the oscillation in transient process is reduced,and the steady state is achieved in minmum time.The experimental result shows that this method has superior performance especially under transient operation.