| 引用本文: | 邓静蕾,姚良忠,邓靖雷,等.基于电力电子变换器主动信号注入的新型配电系统保护技术研究进展与展望[J].电力系统保护与控制,2026,54(04):175-187.[点击复制] |
| DENG Jinglei,YAO Liangzhong,DENG Jinglei,et al.Research progress and prospects of protection technologies for new type power distribution systems based on power converter active signal injection[J].Power System Protection and Control,2026,54(04):175-187[点击复制] |
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| 基于电力电子变换器主动信号注入的新型配电系统保护技术研究进展与展望 |
| 邓静蕾1,2,姚良忠1,2,邓靖雷1,2,梁帅1,2,杨飞3,陈实4,袁宇波4 |
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| (1.交直流智能配电网湖北省工程中心(武汉大学)，湖北 武汉 430072;2.武汉大学电气与自动化学院，湖北 武汉 430072;
3.国网上海能源互联网研究院有限公司，上海 200120;4.国网江苏省电力有限公司电力科学研究院，江苏 南京 211103) |
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| 摘要: |
| 受变换器并网型新能源弱馈特性影响，新型配电系统故障特征显著弱化，导致传统继电保护技术难以适用。主动信号注入式保护通过故障期间变换器输出特性的主动变化，实现了故障特征的主动增强，能够突破系统故障特征弱化对保护性能的制约，是新型配电系统保护技术的重点发展方向。围绕典型故障类型，通过综述新型配电系统保护的研究进展，指出了传统被动式保护的局限性及发展主动信号注入式保护的必要性。在此基础上，分析了注入信号的产生、选择等关键技术，归纳了现有研究的共性问题，探讨了主动信号注入式保护的典型应用场景。最后对其未来发展方向进行了展望，旨在为新型配电系统主动信号注入式保护技术深入研究提供参考。 |
| 关键词: 新型配电系统 电力电子变换器 主动信号注入 继电保护 |
| DOI：10.19783/j.cnki.pspc.250677 |
| 投稿时间：2025-06-24修订日期：2025-11-12 |
| 基金项目:国家重点研发计划项目资助(2023YFB2407400) |
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| Research progress and prospects of protection technologies for new type power distribution systems based on power converter active signal injection |
| DENG Jinglei1,2,YAO Liangzhong1,2,DENG Jinglei1,2,LIANG Shuai1,2,YANG Fei3,CHEN Shi4,YUAN Yubo4 |
| (1. Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network (Wuhan University),
Wuhan 430072, China; 2. School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China;
3. State Grid Shanghai Energy Interconnection Research Institute Co., Ltd., Shanghai 200120, China; 4. Electric Power
Research Institute of State Grid Jiangsu Electric Power Co., Ltd., Nanjing 211103, China) |
| Abstract: |
| Due to weak-feed characteristics of converter-interfaced renewable energy sources, fault characteristics in new type distribution systems are significantly weakened, rendering traditional relay protection techniques increasingly inapplicable. Active signal injection-based protection enhances fault characteristics by actively modulating converter output behavior during faults, thereby overcoming the limitations imposed by weakened characteristics and emerging as a key development direction for protection technologies in new type distribution systems. Focusing on typical fault types, research progress on protection in new type distribution systems is reviewed, highlighting the limitations of traditional passive protection methods and the necessity of developing active signal injection-based protection strategies. On this basis, the key technologies such as the generation and selection of injected signals are analyzed, common issues in existing studies are summarized, and typical application scenarios are discussed. Finally, future research directions are outlined, aiming to provide references for further in-depth studies on active signal injection-based protection technologies for new type distribution systems. |
| Key words: new type distribution system power converter active signal injection relay protection |
