含逆变型分布式电源配电网自适应电流速断保护方案

发布时间：2018-02-27 03:09

本文关键词： 逆变型分布式电源配电网控制策略自适应电流速断保护 IEC　出处：《电力系统自动化》2017年12期 　论文类型：期刊论文

【摘要】：近年来,针对含有逆变型分布式电源(IIDG)的配电网保护受到广泛关注。然而,现有的基于远方信息或就地信息的保护原理都存在着一定的局限性,尤其是IIDG以T形接入方式接于线路上的情况。为此,文中首先研究了IIDG的控制策略及其故障电流输出特性,进而提出了计及控制策略的含IIDG配电网自适应电流速断保护新原理;其次,提出了利用基于IEC 61850通信协议中的制造报文规范(MMS)服务获取IIDG的功率参考值和控制参数的保护实现方案,以较小的经济代价确保自适应电流速断保护在不同的分布式电源出力条件下具有固定的保护范围;最后,基于实时数字仿真(RTDS)和自主研发的保护装置平台,实现并验证了所提保护方案的有效性。
[Abstract]:In recent years, the protection of distribution network with inverter distributed power supply (IIDG) has received extensive attention. However, the existing protection principles based on remote information or local information have some limitations. In particular, IIDG is connected to the line by T-shaped access mode. Firstly, the control strategy and fault current output characteristics of IIDG are studied, and then a new principle of adaptive current quick break protection with IIDG control strategy is proposed. Secondly, this paper proposes a scheme to protect the power reference value and control parameters of IIDG by using the manufacturing message specification (MMS) service based on IEC 61850 communication protocol. At a lower economic cost, the adaptive current protection has a fixed protection range under different distributed power generation conditions. Finally, based on real-time digital simulation (RTDS) and self-developed protection device platform, The effectiveness of the proposed protection scheme is realized and verified.
【作者单位】：华南理工大学电力学院;许昌开普检测技术有限公司;
【基金】：国家自然科学基金资助项目(51477057)~~
【分类号】：TM773

【相似文献】