| 引用本文: | 齐 郑,张淇钰,兰冠仪.考虑分布式电源接入的配电网有源电压消弧技术[J].电力系统保护与控制,2025,53(17):145-155.[点击复制] |
| QI Zheng,ZHANG Qiyu,LAN Guanyi.Active voltage arc suppression technology for distribution networks considering distributed generation integration[J].Power System Protection and Control,2025,53(17):145-155[点击复制] |
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| 摘要: |
| 针对现有配电网有源电压消弧方法未充分考虑线路电压降落以及分布式电源接入的影响，发生单相接地故障时无法保证故障点电压为0，存在无法可靠消弧的问题，提出了一种考虑分布式电源接入的配电网有源电压消弧技术。首先，在接入分布式电源的基础上，考虑线路的电压降落，推导消弧电压理论计算公式，提出改进有源电压消弧方法。其次，提出一种基于馈线终端设备(feeder terminal unit, FTU)量测数据的数据驱动测距方法，能够在故障发生后准确计算出故障距离，为消弧线圈的控制提供数据。最后，通过仿真证明所提方法相较于传统有源电压消弧方法，能够更好地控制故障点电压为0。 |
| 关键词: 配电网 单相接地故障 分布式电源 有源电压消弧 数据驱动 |
| DOI：10.19783/j.cnki.pspc.241581 |
| 投稿时间：2024-11-27修订日期：2025-02-20 |
| 基金项目:国家重点研发计划项目资助(2021YFB2601501) |
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| Active voltage arc suppression technology for distribution networks considering distributed generation integration |
| QI Zheng1,ZHANG Qiyu1,LAN Guanyi2 |
| (1. School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China;
2. School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT) |
| Abstract: |
| Existing active voltage arc suppression technologies for distribution networks often fail to fully consider the effects of line voltage drop and distributed generation (DG) integration. As a result, during single-phase-to-ground faults, these methods cannot guarantee zero voltage at the fault point, resulting in unreliable arc suppression. To address this issue, this paper proposes a new active voltage arc suppression technology for distribution networks with DG integration. First, based on the access of DG and considering line voltage drop, the theoretical calculation formula for the arc suppression voltage is derived, and an improved active voltage arc suppression method is proposed. Second, a data-driven distance measurement method based on feeder terminal unit (FTU) measurement data is proposed, which can calculate the fault distance after a fault occurs, providing accurate data for controlling the arc suppression coil. Finally, simulation results show that the proposed method is more effective in controlling the fault voltage to zero than traditional active voltage arc suppression techniques. |
| Key words: distribution network single-phase-to-ground fault distributed generation active voltage arc suppression data driven |
