【摘要】 主要研究恒频移相控制全桥LC-LC串并联谐振逆变器的动态性能,采用相量建模法PDM(phasor-domain modeling)对其小信号模型进行分析,通过将时域量变换到相量域,可以得到谐振逆变器的相量域大信号模型,再加入小信号扰动后即可得到相量域的小信号模型。在此基础上,对采用相量建模法建立的大信号及小信号模型,进行了环路补偿设计。最后,搭建了一台输出功率为200 W的实验样机,实验结果验证了理论分析设计的正确性。更多还原

【Abstract】 In this paper, the dynamic performance of a full-bridge LC-LC series-parallel resonant inverter under constant-frequency phase shift modulation is studied. Its small signal model is analyzed using the phasor-domain modeling.By transforming the time-domain quantity into the phasor-domain, the phasor-domain large signal model of the resonant inverter can be obtained. In addition, small signal perturbations can be added to obtain the small signal model in the phasor-domain. On this basis, loop compensation design is carried out for the large-and small-signal models established using the phasor-domain modeling method. Finally, an experimental prototype with output power of 200 W was built, and experimental results verified the theoretical analysis and design.更多还原