Adaptive Current Protection Scheme for Distribution Network with Inverted Interfaced Distributed Power Generator

PENG Simin; LI Yunbo; KANG Tong; WAN Dai; YANG Lanjun

doi:10.13296/j.1001-1609.hva.2026.02.026

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Adaptive Current Protection Scheme for Distribution Network with Inverted Interfaced Distributed Power Generator

Research & Analysis | 更新时间：2026-03-16

- Adaptive Current Protection Scheme for Distribution Network with Inverted Interfaced Distributed Power Generator
- High Voltage Apparatus Vol. 62, Issue 2, Pages: 214-222(2026)
- 作者机构：
  
  国网湖南省电力有限公司电力科学研究院，长沙 410007
  西安交通大学电气工程学院，西安 710049
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.02.026
  CLC：
- Received：21 July 2025，
  
  Revised：2025-10-11，
  
  Published：16 February 2026
- 稿件说明：
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PENG Simin, LI Yunbo, KANG Tong, et al. Adaptive Current Protection Scheme for Distribution Network with Inverted Interfaced Distributed Power Generator[J]. High Voltage Apparatus, 2026, 62(2): 214-222.
DOI：

PENG Simin, LI Yunbo, KANG Tong, et al. Adaptive Current Protection Scheme for Distribution Network with Inverted Interfaced Distributed Power Generator[J]. High Voltage Apparatus, 2026, 62(2): 214-222. DOI： 10.13296/j.1001-1609.hva.2026.02.026.

摘要

针对逆变型分布式电源（inverter interfaced distributed generator，IIDG）接入对配电网传统三段式电流保护的影响问题，含IIDG配电网的保护受到越来越多的关注，对此，该文提出了一种含IIDG的配电网自适应电流保护方案。文中根据IIDG的故障特性和短路故障时配电网的序网络进行了理论分析，通过仿真验证了IIDG接入使配电网传统三段式电流保护拒动或者误动；提出了将故障前IIDG输出电流按区间分段后通信、电流保护装置迭代计算后进行整定的自适应电流保护方案，并通过仿真验证了含IIDG的配电网自适应电流保护方案的可靠性。提出的方案整定计算误差在允许范围内，大大减小了对通信同步性和通信量的要求，对含IIDG配电网自适应电流保护的应用具有重要价值。

Abstract

In view of the impact of access of inverter distributed generation (IIDG) on the traditional three-stage current protection of distribution network

the protection of distribution network including IIDG has received more and more attention. In this regard

an adaptive current protection scheme for distribution network with IIDG is proposed in this paper. In this paper

theoretical analysis is performed in accordance with the fault characteristics of IIDG and

in case of short circuit fault

the sequence network of the distribution network

and the refusal operation or mal-operation of the traditional three-stage current protection of the distribution network in case of access of IIDG are verified through simulation. An adaptive current protection scheme is proposed

which involves segmenting the output current of the pre-fault IIDG into intervals

performing iterative calculations for the communication and current protection devices

and then making the settings.The reliability of the distribution network adaptive current protection scheme with IIDG is verified by simulation. The setting calculation error of the proposed scheme is within the allowable error range

which greatly reduces the requirements for communication synchronization and communication volume

and is of great value to the application of adaptive current protection of distribution networks with IIDG.

关键词

Keywords

references

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