刘水,彭宏亮,肖东裕,徐颖华,钟振鑫,王松,尹靖元
LIU Shui,PENG Hongliang,XIAO Dongyu,XU Yinghua,ZHONG Zhenxin,WANG Song,YIN Jingyuan

• 1:广东电网有限责任公司惠州供电局
• 2:中国科学院电工研究所

摘要(Abstract)：

针对传统有载调压变压器存在功能单一、动态特性差等问题，结合工频变压器高效可靠和电力电子变换器易于控制的优点，提出了一种混合型有载调压变压器拓扑结构。通过增加背靠背变换器，并设计相应控制策略，实现了有载调压变压器连续调压和无功补偿的功能；提出一种串联电压补偿方法，实现了对负载的故障保护。最后，分别基于MATLAB仿真软件和实验平台搭建了混合型有载调压变压器实验模型，仿真和实验结果验证了所提拓扑结构和控制策略的正确性和有效性。
To address the issues of limited functionality and poor dynamic characteristics in traditional on-load tap changer transformers, this paper proposes a topological structure for a hybrid on-load tap changer transformer. This structure combines the efficiency and reliability of power-frequency transformers with the controllability of power electronic converters. By integrating back-to-back converters and designing corresponding control strategies, continuous voltage regulation and reactive power compensation for the on-load tap changer transformer are achieved. Additionally, the paper introduces a series voltage compensation method to provide fault protection for the load. Finally, an experimental model of the hybrid on-load tap changer transformer is built using MATLAB simulation software and an experimental platform. Both simulation and experimental results verify the correctness and effectiveness of the proposed topological structure and control strategy.

关键词(KeyWords)： 有载调压变压器;背靠背变换器;无功补偿;故障保护
on-load tap changer transformer;back-to-back converter;reactive power compensation;fault protection

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划（2021YFB2601602）;; 南方电网公司科技项目（031300KK52220009）

作者(Author): 刘水,彭宏亮,肖东裕,徐颖华,钟振鑫,王松,尹靖元
LIU Shui,PENG Hongliang,XIAO Dongyu,XU Yinghua,ZHONG Zhenxin,WANG Song,YIN Jingyuan

DOI: 10.19585/j.zjdl.202410013

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