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首页> 外文期刊>IEEE Transactions on Power Electronics >Dynamics analysis and controller synthesis for zero-voltage-transition PWM power converters
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Dynamics analysis and controller synthesis for zero-voltage-transition PWM power converters

机译:零电压过渡PWM功率转换器的动力学分析和控制器综合

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摘要

A small signal model for zero-voltage-transition pulse width modulation (ZVT-PWM) buck converters is proposed in this paper. It shows that the ZVT-PWM buck converter exhibits better dynamical behavior than the conventional PWM buck converter. Based on the derived model consisting of line voltage disturbances and load variations, /spl mu/-synthesis is applied for a robust controller design to achieve performance requirement. In addition, a classical controller and a sliding mode controller with modified integral variable structure are also designed for performance comparisons. Finally, simulation and experimental results are presented to verify the requirement for robust performance of ZVT-PWM converters.
机译:提出了一种零电压过渡脉冲宽度调制(ZVT-PWM)降压转换器的小信号模型。结果表明,与传统的PWM降压转换器相比,ZVT-PWM降压转换器具有更好的动态性能。基于由线电压干扰和负载变化组成的推导模型,/ spl mu /-综合用于鲁棒的控制器设计以达到性能要求。此外,还设计了具有改进的积分变量结构的经典控制器和滑模控制器以进行性能比较。最后,通过仿真和实验结果验证了ZVT-PWM转换器对鲁棒性能的要求。

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