电源学报

一种基于HHT的交直流微电网故障检测方案

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张建文 ¹^,² , 包义玖 ¹ , 臧甲杰 ³ , 周剑桥 ² , 施刚 ² , 杨兴武 ¹

电源学报 | 可靠性与诊断 2025,23(8): 317-328

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电源学报 |可靠性与诊断 2025 , 23 (8) : 317 -328

一种基于HHT的交直流微电网故障检测方案

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张建文¹^,², 包义玖¹, 臧甲杰³, 周剑桥², 施刚², 杨兴武¹

作者信息

^1.上海电力大学电气工程学院，上海　200090

^2.电力传输与功率变换控制教育部重点实验室（上海交通大学），上海　200240

^3.上海工程技术大学电子电气工程学院，上海　201620

通讯作者:

臧甲杰（1989—　），男，通信作者，博士，讲师。研究方向：大功率电力电子技术，交直流混合电网。E-mail：jiajie_zang@sues.edu.cn。

作者简介:

张建文（1981—　），男，博士，研究员。研究方向：大功率电力电子在电力系统中的应用，可再生能源功率变换与并网技术。E-mail：icebergzjw@sjtu.edu.cn。

包义玖（1999—　），男，硕士研究生。研究方向：低压交直流微电网的故障诊断与识别技术。E-mail：baoyijiu123@163.com。

周剑桥（1992—　），男，博士。研究方向：柔性互联技术，固态变压器。E-mail：jianqiaozhou@sjtu.edu.cn。

施刚（1984—　），男，博士，助理研究员。研究方向：可再生能源功率变换与并网技术。E-mail：gangshi@sjtu.edu.cn。

杨兴武（1981—　），男，博士，教授。研究方向：新能源并网，电能质量分析与控制。E-mail：yangxingwu@shiep.edu.cn。

HHT-based Fault Detection Scheme for AC-DC Microgrid

Jianwen ZHANG¹^,², Yijiu BAO¹, Jiajie ZANG³, Jianqiao ZHOU², Gang SHI², Xingwu YANG¹

Affiliations

^1.School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China

^2.Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education (Shanghai Jiao Tong University), Shanghai 200240, China

^3.School of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

出版时间: 2025-12-30 doi: 10.13234/j.issn.2095-2805.2025.8.317

文章导航

摘要

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交直流微电网能够有效促进可再生能源的应用。然而，由于互联变换器的存在，交流和直流侧之间产生了较强的电气耦合，导致系统内故障特性更加复杂，严重影响系统安全运行。在交直流微电网中，传统的基于互联变换器IGBT闭锁后故障特征的故障检测方案，在故障检测灵敏性和速动性方面难以满足系统的故障检测和保护需求。结合系统接地方式和交直流微电网的故障耦合特征，针对故障期间IGBT未闭锁暂态过程中交直流系统的特征形态，探索利用希尔伯特-黄变换HHT（Hilbert-Huang transform）频谱及能量幅值进行交直流微电网故障检测应用的可行性。通过仿真验证，所提基于HHT的故障检测方案能够实现2 ms内对交直流微电网故障类型的快速、准确识别，有效提高了微电网的安全性和可靠性。

关键词

交直流微电网 / 互联变换器 / 故障耦合特性分析 / 希尔伯特-黄变换 / 故障检测

Abstract

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The AC-DC microgrid can effectively facilitate the applications of renewable energy sources. However, the strong electrical coupling between the AC and DC sides caused by an interconnected converter complicates the fault characteristics within the system, threatening the system’s safe operation. The traditional fault detection schemes based on the fault characteristics may not have enough sensitivity or rapidity to meet the system’s fault detection and protection requirements. Notably, the system exhibits significant fault characteristics before blocking the interconnected converter’s IGBTs in the AC-DC microgrid. Therefore, with the combination of grounding schemes for the system and the AC-DC microgrid’s electrical coupling characteristics, the feasibility of a novel fault detection scheme for the AC-DC microgrid based on the Hilbert-Huang transform (HHT) spectrum and energy amplitude is explored, which is aimed at the AC-DC system’s characteristics during the transient process before blocking the IGBTs under fault. Through simulation verification, it is found that the proposed HHT-based fault detection scheme can realize rapid and accurate identification of fault types for the AC-DC microgrid within 2 ms, which effectively improves the safety and reliability of the microgrid.

Key words

AC-DC microgrid / interconnected converter / analysis of fault coupling characteristics / Hilbert-Huang transform (HHT) / fault detection

引用本文

张建文, 包义玖, 臧甲杰, 周剑桥, 施刚, 杨兴武. 一种基于HHT的交直流微电网故障检测方案. 电源学报, 2025 , 23 (8) : 317 -328 . DOI: 10.13234/j.issn.2095-2805.2025.8.317

Jianwen ZHANG, Yijiu BAO, Jiajie ZANG, Jianqiao ZHOU, Gang SHI, Xingwu YANG. HHT-based Fault Detection Scheme for AC-DC Microgrid[J]. Journal of Power Supply, 2025 , 23 (8) : 317 -328 . DOI: 10.13234/j.issn.2095-2805.2025.8.317

基金

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国家重点研发计划政府间国际科技创新合作资助项目(2019YFE0104800)
国家自然科学基金资助项目(52277193)
上海市白玉兰人才计划浦江资助项目(23PJ1404000)
宁德时代未来能源（上海）研究院有限公司校企合作资助项目

参考文献

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2025年第23卷第8期

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文章信息

doi: 10.13234/j.issn.2095-2805.2025.8.317

接收时间：2023-09-21
首发时间：2026-10-26
出版时间：2025-12-30

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出版历史

收稿日期：2023-09-21
修回日期：2023-11-23
录用日期：2023-12-04

基金

National Key R&D Program of China for Intergovernmental International Scientific and Technological Innovation Cooperation(2019YFE0104800)

国家重点研发计划政府间国际科技创新合作资助项目(2019YFE0104800)

National Natural Science Foundation of China(52277193)

国家自然科学基金资助项目(52277193)

Shanghai Magnolia Talent Program Pujiang Project(23PJ1404000)

上海市白玉兰人才计划浦江资助项目(23PJ1404000)

CATL Future Energy (Shanghai) Research Institute School-enterprise Cooperation Project

宁德时代未来能源（上海）研究院有限公司校企合作资助项目

作者信息

^1.上海电力大学电气工程学院，上海　200090

^2.电力传输与功率变换控制教育部重点实验室（上海交通大学），上海　200240

^3.上海工程技术大学电子电气工程学院，上海　201620

通讯作者:

臧甲杰（1989—　），男，通信作者，博士，讲师。研究方向：大功率电力电子技术，交直流混合电网。E-mail：jiajie_zang@sues.edu.cn。

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https://castjournals.cast.org.cn/joweb/dyxb/CN/10.13234/j.issn.2095-2805.2025.8.317

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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