电力系统自动化2017，Vol.41Issue(12)：86-92,7.DOI:10.7500/AEPS20160811002
含逆变型分布式电源配电网自适应电流速断保护方案
Adaptive Current Protection Scheme for Distribution Network with Inverter-interfaced Distributed Generators
摘要
Abstract
In recent years, the protection of distribution network with inverter-interfaced distributed generators (IIDGs) has caused great concerns.However, there are some limitations in the existing protection principles based on the remote or local information, especially when IIDGs are connected to the transmission line.Therefore, a novel adaptive current protection scheme is proposed.First, with the fault control strategy of IIDG taken into consideration, the output fault current characteristics are analyzed followed by an adaptive current instantaneous trip protection principle.Then, in order to get the power reference value and control parameters, a telecontrol communication model based on manufacturing message specification (MMS) service in IEC 61850 protocol is proposed and implemented to ensure the proposed principle has a fixed protection range under different distributed generator (DG) output conditions at a lower cost.Finally, testing results using real time digital system (RTDS) and the self-designed protection device have verified the validity of the whole proposed protection scheme.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/IEC61850Key words
inverter-interfaced distributed generators (IIDGs)/distribution network/control strategy/adaptive current instantaneous trip protection/IEC 61850引用本文复制引用
曾德辉,王钢,郭敬梅,孙迅雷..含逆变型分布式电源配电网自适应电流速断保护方案[J].电力系统自动化,2017,41(12):86-92,7.基金项目
国家自然科学基金资助项目(51477057).This work is supported by National Natural Science Foundation of China (No.51477057). （51477057）
