Fuzzy logic based pattern recognition technique for non-intrusive load monitoring

This paper introduces a new algorithm for detecting the type of domestic (household) electrical load coming onto the power system and the duration for which it persists on the system. It is based on the fuzzy logic theory for pattern recognition. It is a completely non-intrusive type of load monitoring system. The algorithm is simpler in implementation. The period of operation of a device can also be calculated by taking the difference of the instants at which its starting and stopping transients occur. Knowing this, the energy consumed by a device can be calculated.