Implementation and Comparison of Detection Algorithm for Non Intrusive Load Switching Events

Abstract

For the intelligent development of electric power, NILM appears to save a lot of manpower and material resources compared to the traditional charge detection. NILM only need to install monitoring equipment in power at the entrance, by monitoring the voltage and current signals, we can analyze the type and operation of a single load in the cluster, so as to realize the scientific and reasonable management of electric power. With the development of NILM technology, a variety of detection algorithm for NILM has also been widespread concern and development. In this paper, based on the STM32 embedded development board to build a set of NILM system. On the basis of the software, an event detection algorithm based on current and power based on switching event is realized. According to the two kinds of algorithms, the experiment results are compared with the actual test results, and finally come to the conclusion: if the test equipment is a pure resistive electrical equipment, the accuracy rate is almost 100%, while for the non - pure resistive electrical appliances, the accuracy of the test is different because of the different electrical.