重庆大学学报2017，Vol.40Issue(2)：70-79,10.DOI:10.11835/j.issn.1000-582X.2017.02.010
含电压逆变型分布式电源配电网的短路电流计算
Short-circuit current calculation of inverter interfaced distributed generator based on voltage control in distribution network
谢维兵 1刘敏 1周晓霞 1敬勇 1叶玲 2王强钢 2周念成2
作者信息
- 1. 国网重庆市电力公司技能培训中心，重庆 400044
- 2. 重庆大学 输配电装备及系统安全与新技术国家重点实验室，重庆 400044
- 折叠
摘要
Abstract
The distribution of power flow and short-circuit current is changed by the distributed generation embedded in distribution network,and its short-circuit current affects the operation of protection and reclosing devices.The fault response characteristics of voltage controlled inverter interfaced distributed generator (IIDG ) were studied, and the relationship between IIDG three-phase power and power components in the positive and negative sequence networks under asymmetrical fault condition were also analyzed.Then a sequence component model of voltage controlled IIDG for short-circuit current calculation was established.The fault current change law and recursion formula were gained according to the interaction between the IIDG and the sequence networks,and consequently the iterative algorithm of symmetrical components for short-circuit current calculation of distribution network with voltage controlled IIDG was proposed.The correctness of the proposed method was verified by the electromagnetic transient model of voltage controlled IIDG in PSCAD/EMTDC simulation software.关键词
逆变型分布式电源/电压控制/故障分析/对称分量/配电网Key words
inverter interfaced distributed generator/voltage control/fault analysis/symmetrical component/distribution network分类
信息技术与安全科学引用本文复制引用
谢维兵,刘敏,周晓霞,敬勇,叶玲,王强钢,周念成..含电压逆变型分布式电源配电网的短路电流计算[J].重庆大学学报,2017,40(2):70-79,10.
