广东电力2017，Vol.30Issue(4)：94-101,8.DOI:10.3969/j.issn.1007-290X.2017.04.017
背靠背直流输电的交流电网故障计算模型研究
Research on Fault Calculation Model for AC Power Grid with Back-to-back HVDC Transmission
摘要
Abstract
Due to close relation of both sides converters of the back-to-back (BTB) HVDC power transmission system, fault at one side of the AC power grid will cause impact on another side of the AC system.Current fault calculation models are not suitable for BTB HVDC, therefore, on the basis of equivalent model of the converter counting control characteristics of the DC system, this paper analyzes harmonic interaction characteristic in the DC system and fault influencing mechanism between the connected AC systems and establishes a fault calculation model for the BTB HVDC system.Combining grid structures of the double-ended AC power grids and boundary conditions at the fault side, it presents a kind of fault analysis method for the power grid with BTB HVDC power transmission.The proposed fault calculation model was applied in fault analysis and calculation for Lingbao BTB HVDC power transmission model and related results were compared with those from PSCAD/EMTDC simulation.It proves effectiveness of the proposed model and method.关键词
背靠背直流/换流器模型/故障计算/谐波传变特性Key words
back-to-back HVDC/converter model/fault calculation/harmonic interaction characteristic分类
信息技术与安全科学引用本文复制引用
麦国浩,李海锋,郭彦勋,王钢,钟庆,张俊潇..背靠背直流输电的交流电网故障计算模型研究[J].广东电力,2017,30(4):94-101,8.基金项目
国家自然基金项目(51577072) （51577072）
