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基于三相/单相电流源单元的多单元拓扑分析与设计

Analysis and Design of a Multicell Topology Based on Three-Phase/Single-Phase Current-Source Cells

语言:

中文摘要

本文提出了一种基于电流源单元的多单元拓扑结构。该拓扑继承了电流源拓扑的优势,如降低负载dv/dt电压及天然的双向功率流特性;同时,通过将nC个单元串联供电,实现了类似于电压源多电平拓扑的电压控制行为。

English Abstract

This work proposes a multicell topology based on current-source cells in order to inherit the advantages of current-source topologies such as reduced load dv/dt voltage and natural bidirectional power flow and to adopt a similar behavior of the multicell topology based on a voltage source converter such as voltage controlled behavior where nC cells are connected in series to feed one load phase. I...
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SunView 深度解读

该研究提出的电流源多单元拓扑在降低dv/dt应力方面具有优势,对提升逆变器功率密度和延长电机/变压器寿命有潜在价值。对于阳光电源而言,该技术可关注其在大型集中式光伏逆变器或高压储能变流器(PCS)中的应用潜力。虽然目前主流产品多采用电压源型拓扑,但电流源型拓扑在特定高压、高功率密度应用场景下可作为技术储备,特别是在提升系统可靠性和电网适应性方面,建议研发团队评估其在下一代高压大功率PCS中的可行性。