Smart metering by using “Matrix Pencil”

A new method to identify electrical appliances and their consumption is presented in this paper. It is an important aspect to address larger monitoring system called smart grid. It will deliver electricity from suppliers to consumers using two-way digital technology to control appliances at consumers´ homes to save energy, reduce cost and increase reliability and transparency. This paper focuses on an innovative function based on “Matrix Pencil” to identify and monitor electrical loads in residential areas. This technique takes advantage from transient and steady state analysis to improve monitoring efficiency. In particular, it allows us to extract active and reactive power for fundamental and harmonic frequencies. This new approach has been integrated into an energy meter with the collaboration of Landis + Gyr.