Work

Research on topological structure and control strategy of a hybrid on-load tap changer transformer

Year: 2024

Type: article

Abstract: 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.

Source: DOAJ (DOAJ: Directory of Open Access Journals)

DOI: 10.19585/j.zjdl.202410013

Authors: LIU Shui, PENG Hongliang, XIAO Dongyu, XU Yinghua, ZHONG Zhenxin, WANG Song, YIN Jingyuan

Institutions: Guangdong Power Grid Company (China), Chinese Academy of Sciences, Institute of Electrical Engineering

Language: English

Topic: Advanced DC-DC Converters

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: green

OpenAlex ID: W6944613445

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