电气传动2018，Vol.48Issue(2)：47-52,6.DOI:10.19457/j.1001-2095.20180209
基于DSOGI-FLL的MMC-HVDC故障控制策略研究
Research on Fault Control Strategy in MMC-HVDC Based on DSOGI-FLL
摘要
Abstract
When the AC side of converter in HVDC system occurs unbalanced faults,the double frequency active power oscillations and large overcurrent are occurred. The positive and negative sequence virtual flux components were estimated using the dual second order generalized integrator based on the frequency-locked loop. The setting values of inner current controller were calculated using the virtual flux components.The double frequency active power oscillation and overcurrent could be eliminated.A complete system simulation model and experimental platform were built in PSCAD/EMTDC,the results show that the strategy can effectively restrain the fault overcurrent and double frequency active power oscillation,improve the operation ability of the system.关键词
电压源换流器/正负序虚拟磁链估计/双二阶广义积分器/有功二倍频振荡/锁频环Key words
voltage source converter/positive and negative sequence virtual flux components estimation/double second order generalized integrator/the double frequency active power oscillations/frequency-locked loop分类
信息技术与安全科学引用本文复制引用
袁斌华,薛彪,张钰..基于DSOGI-FLL的MMC-HVDC故障控制策略研究[J].电气传动,2018,48(2):47-52,6.基金项目
陇东学院青年科技创新项目(XYBY140207) （XYBY140207）
陇东学院青年科技创新项目(XYZK1613) （XYZK1613）
