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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Bridgeless Triple-Mode Resonant AC–DC Converter: Dynamic Modeling and Controls
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Bridgeless Triple-Mode Resonant AC–DC Converter: Dynamic Modeling and Controls

机译:无桥式三型谐振AC-DC转换器:动态建模和控制

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摘要

This paper introduces the bridgeless triple-mode resonant ac-dc converter and presents its dynamic model and control technique. The proposed converter operates in triple mode: discontinuous-conduction mode (DCM), continuous-conduction mode (CCM), and missing resonance mode (MRM). It has the advantages of small number of required components, medium power capacity, and high efficiency, but it is difficult to control because DCM, CCM, and MRM have their own dynamic characteristics. To solve this control problem, the mode boundaries are first identified and, corresponding to each mode, the dynamic model is developed to design the controller. In each mode, we propose to add a repetitive controller (RC) with a phase-lead compensator to the conventional duty ratio plus feedback controller. The RC is used to suppress the deterministic periodic disturbances and the phase-lead compensator is used to compensate for the incurred phase lag. A 1-kW digitally controlled converter prototype is built and used to demonstrate the validity of the proposed modeling and control approach.
机译:本文介绍了无丝杠三型谐振AC-DC转换器,并呈现其动态模型和控制技术。所提出的转换器以三重模式运行:不连续导通模式(DCM),连续导通模式(CCM)和缺少谐振模式(MRM)。它具有所需的组件,中型电力容量和高效率的优点,但难以控制,因为DCM,CCM和MRM具有自己的动态特性。为了解决这个控制问题,首先识别模式边界,并且对应于每个模式,动态模型开发用于设计控制器。在每种模式中,我们建议将重复控制器(RC)添加到传统占空比加反馈控制器的相位引线补偿器。 RC用于抑制确定性周期性干扰,并且使用相位引线补偿器来补偿发生的阶段滞后。建立一个1千瓦数字控制的转换器原型,用于展示所提出的建模和控制方法的有效性。

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