胡悦,胡文山,王晓文,周东国.基于KM算法投切事件匹配的负荷辨识方法[J].电测与仪表,2023,60(11):66-73. Hu Yue,Hu Wenshan,Wang Xiaowen,Zhou Dongguo.A load event matching method for non-intrusive load identification based on KM algorithm[J].Electrical Measurement & Instrumentation,2023,60(11):66-73.
A load event matching method for non-intrusive load identification based on KM algorithm
Load turning on and off events are important basis for load classification and identification. In order to accurately identify the process of load switching, a non-intrusive load identification method based on KM matching algorithm is proposed. In this method, firstly, an approximation method fitting the power curve is used to detect load events, and the probability distribution model of load event signatures is established by using the switching steady-state signatures. At the same time, considering that the number of load turning on and off events is not equal, the load events are matched with loads in database, and weighted optimization KM algorithm is used to find the optimal solution, so as to realize the correct matching. Finally, in the test of real scenario and REDD dataset, the results show that the proposed method can effectively match and identify load events, which can be the foundation for subsequent energy consumption subdivision.