Study on a Real Case of Low Frequency Oscillation Occurred in the Black-Start by a Hydropower Plant

摘要：

This paper recaptures a low frequency oscillation occurred during simulation and finally being resolved in the real grid.Three hypothesis are proposed to tackle this issue,namely the ferro-resonance caused by hasty stepping up,the inrush current derived from remanence in transformer and the parameter resonance between the unit and experiment grid.After being refuted consecutively it is assumed that the autoexcitation system parameter resonates with grid.Expectedly the oscillation vanished by altering the control parameter with proof of some simulation results.At last two conclusions are presented from experimental analysis.

关键词： low frequency oscillation:parameter resonance excitation system:stepping up from zero:black-start

作者: Bo YANG Jing JIANG Tao YU Jinliang JIANG

作者单位: dept.of Electric Power South China University of Technology GuangZhou,China

会议类型: 国际会议

会议名称: 2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies(第四届电力设施管制、重建及能源技术国际会议 DRPT 2011)

会议地点: 威海

会议语种:英文

页码: 1445-1448

在线出版日期: 2011-07-06（万方平台首次上网日期，不代表论文的发表时间）