具有阻感负载的三相双向混合电压型整流器的研究

Study of Three-phase Bidirectional Hybrid Voltage Source Rectifier with Resistance-inductance Load

对一种三相混合电压型PWM整流器进行了研究。根据拓扑结构分别建立了Boost变换器的欧拉-拉格朗日EL(Euler-Lagrange)数学模型和PWM整流器的端口受控耗散哈密顿PCHD(port control hamiltonation with dissipation)模型。PCHD模型进行无源控制器设计不仅能进行阻尼注入,还能进行能量成型,无源控制器设计更为灵活。基于三相混合电压型整流器的无源性,采用一种外环采用PI控制,内环采用无源控制的无源混合控制方案。仿真验证了该无源混合控制器在整流器带阻感负载情况下运行的可行性。

Studied a three-phase hybrid voltage source rectifer with resistance-inductance load. According to thetopology,the euler-lagrange mathematical models of boost type DC-DC convertor and PCHD(port controlhamiltonation with dissipation)of PWM rectifier were designed. Designed the passive-based controller with PCHDmodel,which it not only could achieve damping-inject,but also could be energy shaping and be more flexible. Basedon the models′ passivity,a hybrid control strategy based on PI control on the voltage loop and passive control on thecurrent loop was proposed. The hybrid control strategy is proved feasible by the simulation result in the situation ofwith resistance-inductance load.