电力系统自动化2017，Vol.41Issue(12)：106-112,187,8.DOI:10.7500/AEPS20160511005
逆变型电源接入对选相元件的影响分析
Influence of Inverter-interfaced Generator on Element of Phase Selectors
摘要
Abstract
The positive-sequence control strategy is adopted for the integration of large-scale use of inverter-interfaced generators (IIGs) under fault conditions, and the fault current supplied by IIGs only consists of positive-sequence components.Such being the case, the positive-and negative-sequence current distribution coefficients on the IIG side are no longer equal any more.Based on this fault characteristic, the performance of the two traditional phase selectors for transmission lines emanating from IIGs, e.g., the phase selector of the sudden-change of two-phase current difference and the phase selector of the phase comparison of symmetrical components, are analyzed.The phase selectors on the IIG side fail to operate, whereas those on the system side can still make correct decisions.Simulation results based on PSCAD validate the effectiveness of the analysis.Finally, prospective phase selector criterion for systems containing IIGs is proposed.关键词
逆变型电源/故障分析/低电压穿越控制/选相元件Key words
inverter-interfaced generator/fault analysis/low-voltage ride through/phase selector引用本文复制引用
陈实,邰能灵,范春菊,刘剑,洪树斌..逆变型电源接入对选相元件的影响分析[J].电力系统自动化,2017,41(12):106-112,187,8.基金项目
教育部科学技术研究项目(113023A) （113023A）
国家电网公司科技项目(SGTJDK00DWJS1500098).This work is supported by China Ministry of Education of Science and Technology Research Projects (No.113023A) and State Grid Corporation of China (No.SGTJDK00DWJS1500098). （SGTJDK00DWJS1500098）
