Noise Filtering Design of Non-intrusive Electrical Monitoring System
Xinghao Wei, Bo Yin, Zhicheng Zhu · 2016
With the electric energy consumption monitoring equipment is the foundation to carry out energy-saving work, strengthening the monitoring of energy consumption especially power consumption monitoring work in China to improve energy efficiency, realize the sustainable development of the energy, construction of a conservation oriented society and ease the pressure of energy is of great significance.This paper carried out a new electric power load energy consumption monitoring method non-intrusive power load research and monitoring of the decomposition, breaking the current status of power can only be carried out monitoring of total amount of power load, power monitoring, further refinement to the internal load of different electrical appliances, this paper presents a design method of non-intrusive noise filtering the type of power load decomposition.The method in the current signal from the circuit, firstly the signal of a series of filtering through the filter circuit is designed to filter the noise and interference, and then the signal of high precision analog to digital conversion, and then use Gabor filter re filtering operation, the signal is more stable and clean.In order to complete the non intrusive power detection system hardware design, to ensure the stability and integrity of current signal, and can be completed next to the relevant signal processing.