电力系统及其自动化学报2017，Vol.29Issue(7)：75-80,6.DOI:10.3969/j.issn.1003-8930.2017.07.012
含逆变型分布式电源的配电网故障分析通用计算方法
General Calculation Method for Distribution Network Fault Analysis with Inverter-interfaced Distributed Generations
摘要
Abstract
In this paper,the short-circuit current characteristics of inverter-interfaced distributed generations and the corresponding calculation method are studied. Firstly,through the actual short-circuit current waveform of an inverter, the characteristics of short-circuit current are discussed,and then the influence of control strategy on short-circuit cur?rent is analyzed. Accordingly,the short-circuit current is divided into sub-transient,transient and steady stages,and the characteristic in each stage is analyzed. The equivalent models of short-circuit in sub-transient and steady stages are also set up. Secondly,a phase-sequence hybrid general calculation method is put forward based on node-voltage equa?tion,which can be applied to the calculation of short-circuit current in the sub-transient and steady stages. Through a test example,the correctness of the proposed theory and method is verified.关键词
逆变型分布式电源/故障特性/等值模型/短路电流计算Key words
inverter-interfaced distributed generation/fault characteristic/equivalent model/short-circuit current cal⁃culation分类
信息技术与安全科学引用本文复制引用
张林利,彭克,苏建军,咸日常,李立生,邵志敏..含逆变型分布式电源的配电网故障分析通用计算方法[J].电力系统及其自动化学报,2017,29(7):75-80,6.基金项目
国网山东省电力公司科技资助项目 （）
