电气传动2024，Vol.54Issue(4)：27-33,7.DOI:10.19457/j.1001-2095.dqcd25223
基于托里拆利点的柔性互联装置直流电压波动抑制策略
DC Voltage Fluctuation Suppression Strategy of Flexible Interconnected Device Based on Torricelli Point
摘要
Abstract
Considering that the problem of voltage fluctuations on the DC side caused by the three-phase imbalance of the AC grid of the flexible interconnection device,a DC voltage fluctuation suppression strategy for flexible interconnection device based on the Torricelli point was proposed.Firstly,by defining the Torricelli point of the triangle formed by the voltage vector in the three-phase unbalanced fault system as the"new neutral point",the voltage amplitude asymmetry and phase angle drift faults in the traditional three-phase coordinate system were transformed into voltage amplitude faults in the Torricelli point coordinate system;secondly,the relationship between the active power oscillation of the three-phase power system and DC fluctuations was analyzed,a new control strategy was established to suppress the voltage fluctuations of the DC bus voltage by suppressing the fluctuation of double frequency component of active power effectively.Finally,the proposed method was proved to be effective by the Matlab/Simulink simulation model.关键词
托里拆利点/柔性互联/不对称故障/电压波动Key words
Torricelli point/flexible interconnected/asymmetric failure/voltage fluctuation分类
信息技术与安全科学引用本文复制引用
周琦,王晨清,孔祥平..基于托里拆利点的柔性互联装置直流电压波动抑制策略[J].电气传动,2024,54(4):27-33,7.基金项目
国家电网有限公司科技项目(5400-202255160A-1-1-ZN) （5400-202255160A-1-1-ZN）
