首页> 外文期刊>Power Electronics, IET >Model following average-current-mode control with 1/∛s compensator for interleaved boost converters with improved dynamic response
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Model following average-current-mode control with 1/∛s compensator for interleaved boost converters with improved dynamic response

机译:具有1 / µs补偿器的平均电流模式控制模型,用于交错式升压转换器,具有改善的动态响应

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摘要

This study presents a model following average-current-mode (MFACM) control using a 1/√s compensator to improve robustness and dynamic response for multiphase boost converters. The proposed 1/√s compensator can maintain a constant phase boost of about 60° over two decades, which is attractive from the point of view of stability design when phase margin, gain margin, delay margin and modulus margin are taken into consideration. In addition, the MFACM control is shown to elevate perturbation rejection ability of converters by reducing closed-loop output impedance and closed-loop audio susceptibility, relative to traditional average-current-mode control methods with the almost same crossover frequency. Computer simulations and experimental results using a three-phase interleaved boost converter are shown close agreement between modelled estimates and measured values.
机译:这项研究提出了一种模型,该模型采用平均电流模式(MFACM)控制,使用1 /√s补偿器来改善多相升压转换器的鲁棒性和动态响应。提出的1 /√s补偿器可以在二十年内保持约60°的恒定相位升压,从稳定性设计的角度来看,当考虑相位裕度,增益裕度,延迟裕度和模量裕度时,这很有吸引力。此外,相对于具有几乎相同的交叉频率的传统平均电流模式控制方法,MFACM控制通过降低闭环输出阻抗和闭环音频敏感性来提高转换器的抗扰能力。使用三相交错式升压转换器进行的计算机仿真和实验结果表明,建模估算值和测量值之间具有紧密的一致性。

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