A Soft-Switching Single-Stage AC-DC Converter

Farid Naghavi, H. Toliyat
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引用次数: 3

Abstract

Partial resonance high frequency AC link converters are recognized to provide soft-switching, single-stage power conversion. They are highly reliable due to elimination of DC capacitors. Previous work has focused on proof of concept topologies and design requirements. In this work, a current regulated AC-DC converter from this family of converters is presented. The control design and grid integration requirements are discussed. An active damping method using grid current feedback is implemented to mitigate the filter resonance oscillations. The current control is implemented in the synchronous frame using voltage oriented control which enable power factor and power flow control. The result of converter operation and its control loops' performances are presented.
一种软开关单级交流-直流变换器
部分谐振高频交流链路转换器被认为提供软开关,单级功率转换。由于消除了直流电容器,它们非常可靠。以前的工作主要集中在概念拓扑和设计需求的验证上。在这项工作中,提出了该系列变换器中的电流调节AC-DC变换器。讨论了控制设计和网格集成要求。采用栅极电流反馈的主动阻尼方法减轻了滤波器的谐振振荡。电流控制采用电压定向控制在同步机架中实现,从而实现功率因数和功率流控制。给出了变换器的运行结果及其控制回路的性能。
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