基于混频调制的新型电力电子变压器

SHU Liangcai

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基于混频调制的新型电力电子变压器

更新时间：2025-08-13

- 基于混频调制的新型电力电子变压器
- Automation of Electric Power Systems Vol. 42, Issue 7, Pages: 146-152(2018)
- 作者机构：
  
  东南大学先进电能变换技术与装备研究所,江苏省,南京市,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2018
- 稿件说明：
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SHU Liangcai. [J]. Automation of electric power systems, 2018, 42(7): 146-152.
DOI：

SHU Liangcai. [J]. Automation of electric power systems, 2018, 42(7): 146-152. DOI：

摘要

现有的电力电子变压器的能级变换级数较多，导致效率不高、体积庞大、成本高，制约了其在实际中的应用。首先，基于混频调制技术，提出了两种新型的基于级联H桥变流器结构的电力电子变压器拓扑，以减少变换级数并实现多端口输入/输出，有利于提升功率密度。然后，详细分析了该电力电子变压器的设计方法与控制策略，利用Simulink验证了所提电力电子变压器拓扑及控制策略的可行性，并与传统电力电子变压器拓扑进行了对比分析。

Abstract

Many series of power conversion links in the existing power electronic transformer(PET)results in low conversion efficiency

huge volume and high cost

which restricts the practical application. Firstly

according to the mixed-frequency modulation

two novel PETs based on cascade H-bridge converter are proposed

which can reduce the number of power conversion links and achieve multiple input and output ports to improve the power density. Then

the simplified design procedure and control strategy are specifically analyzed. The Simulink is employed to verify feasibility of the proposed topologies and control strategy of PET. Moreover

the proposed topologies are compared to the existing PET topology as well.

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Related Institution

Electric Power Research Institute of State Grid Jiangsu Electric Power Co., Ltd.

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Panyu Power Supply Bureau of Guangdong Power Grid Co., Ltd.

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