A Method of Load Classification Based on the Trajectory Sensitivity
Zheng Xiaoyu1, He Renmu1, Ma Jin1, Tang Yonghong2
1. Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control Under Ministry of Education North China Electric Power University Beijing 102206 China 2. Sichuan Electric Power Research Institute Chengdu 610072 China
Abstract：Load time-variant characteristic has great impacts on load modeling. It is an effective way to classify the load data for eliminating that effect. In this paper, trajectory sensitivity is used in load classification and a new approach is proposed. In this method, load model parameters are first derived from the field measurement data, then, the trajectory sensitivities with respect to induction motor parameters under the same voltage disturbance are calculated. After the analysis of trajectory sensitivity results, the maximum value of the reactive power sensitivity with respect to rotor resistance of motor is proposed to be utilized in load classification. Comparing with other classification methods, this approach is simpler and has more clear mechanism meaning. The theory deduction and practical case shows its efficiency.
郑晓雨, 贺仁睦, 马进, 唐永红. 基于轨迹灵敏度的负荷分类[J]. 电工技术学报, 2010, 25(9): 145-150.
Zheng Xiaoyu, He Renmu, Ma Jin, Tang Yonghong. A Method of Load Classification Based on the Trajectory Sensitivity. Transactions of China Electrotechnical Society, 2010, 25(9): 145-150.
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2010, Vol. 25 
