南方电网技术2018，Vol.12Issue(10)：41-51,11.DOI:10.13648/j.cnki.issn1674-0629.2018.10.007
适应逆变型分布式电源接入的配电网保护方法
Distribution Network Protection Method Adapted to the Interconnecting of Inverter-Interfaced Distributed Generation
摘要
Abstract
Because of its simplicity, economy and reliability, current protection is widely used in distribution network of 35 kV and below. However, due to the small short-circuit current of the inverter-interfaced distributed generation (IIDG) , current protection on the IIDG side fails to operate correctly and the distance protection also faces great challenges. The fault characteristics of the IIDG and its impact on the distance protection is analyzed in this paper. Based on this, a protection network configuration method based on the combination of delay distance protection and current protection is proposed. The method is simple and easy to implement, and is able to endure fault resistance and noise. A distribution network model with IIDG is built in PSCAD/EM TDC, and the simulation results verify fault characteristics and protection configuration method.关键词
电流保护/配电网/逆变型分布式电源/延时距离保护Key words
current protection/distribution network/inverter-interfaced distributed generation/time delay distance protection分类
信息技术与安全科学引用本文复制引用
潘本仁,贾科,杨哲,宿昌,桂小智,万勇..适应逆变型分布式电源接入的配电网保护方法[J].南方电网技术,2018,12(10):41-51,11.基金项目
国家电网公司科技项目 (521820160017) （521820160017）
国家自然科学基金项目 (51725702, 51777071). （51725702, 51777071）
