面向交直流混合配电应用的10kV-3MV·A四端口电力电子变压器

doi:10.19595/j.cnki.1000-6753.tces.L90396

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摘要电力电子变压器是交直流混合配电系统中实现交直流电能变换与管控的核心设备,该文以应用于苏州同里交直流混合配电系统中10kV-3MV·A四端口电力电子变压器样机为对象,考虑示范工程中多电压等级的交直流设备接入需求,针对交直流混合配电接入的复杂应用场景,在电力电子变压器样机的电路拓扑设计和分布式控制技术方面开展研究,提出一种适用于多端口、直流真双极的电路拓扑及其端口协调控制策略。示范工程现场测试结果验证了该文中电力电子变压器样机设计能够满足交直流混合配电系统复杂应用需求,对于电力电子变压器在交直流混合配电网中推广应用及发展具有重要意义。

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	高范强
	李子欣
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	王平
	袁宇波

关键词 ：电力电子变压器, 固态变压器, 多端口, 交直流混合配电系统, 协调控制

Abstract：Power electronic transformer is the key equipment for AC and DC power conversion and control in AC-DC hybrid power distribution system. Taking the 10kV-3MVA four-port PET prototype applied in Suzhou Tongli AC-DC hybrid power system as the object, this paper studies the circuit topology design and distributed control technology, and proposes a circuit topology and its port coordination control strategy suitable for multi-port DC bipolar application. Herein, the access requirements of AC and DC equipment with multiple voltage levels and the complex application scenarios of AC-DC hybrid power distribution are considered. Simulation and test results verify that the PET design can meet the complex application requirements of AC-DC hybrid power distribution system, and has important practical significance for the promotion and application of PET in AC-DC hybrid distributed power grid.

Key words： Power electronic transformer solid state transformer multi-port AC-DC hybrid distribution system coordinated control

收稿日期: 2020-07-11

PACS:

TM46

基金资助:国家自然科学基金项目（51707184）和中国科学院青年创新促进会（2019144）资助

通讯作者: 李子欣男,1981年生,研究员,博士生导师,研究方向为电力电子变流与控制技术。E-mail: lzx@mail.iee.ac.cn

作者简介: 高范强男,1984年生,副研究员,硕士生导师,研究方向为大功率电力电子技术。E-mail: gaofanqiang@mail.iee.ac.cn

引用本文:

高范强, 李子欣, 李耀华, 王平, 袁宇波. 面向交直流混合配电应用的10kV-3MV·A四端口电力电子变压器[J]. 电工技术学报, 2021, 36(16): 3331-3341. Gao Fanqiang, Li Zixin, Li Yaohua, Wang Ping, Yuan Yubo. 10kV-3MV·A Four-Port Power Electronic Transformer for AC-DC Hybrid Power Distribution Applications. Transactions of China Electrotechnical Society, 2021, 36(16): 3331-3341.

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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.L90396 https://dgjsxb.ces-transaction.com/CN/Y2021/V36/I16/3331

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