Non-intrusive microwave oven start-up identification method based on active two-stage lift

Abstract

The invention relates to a non-invasive type microwave oven starting identification method based on active two-stage uplift. The method comprises the following steps: 1, according to a set sampling frequency, sampling voltages and currents of a total power supply inlet wire of an indoor power grid; 2, setting a time window, i.e., calculating an average active power value corresponding to the time window at the total power supply inlet wire, wherein the average active power value is successively an element forming an average active power sequence; 3, according to the average active power sequence, calculating an active power differential sequence composed of an active power differential value; and 4, according to the active power differential sequence, determining a two-stage active power uplift occurs, then according to time features of two-state active power upright increment features, determining whether a microwave oven is started in the indoor power grid, and if no electromagnetic ovens are started, returning to the third step. According to the invention, active power regular uplift features when the microwave oven is started are taken into full consideration, and the accuracy of microwave oven non-invasive identification is improved.

Description

technical field [0001] The invention belongs to the technical field of intelligent electricity utilization, and relates to a non-invasive identification method for microwave ovens. Background technique [0002] Residential power load monitoring and decomposition technology is an emerging smart grid basic support technology. Unlike the current smart meter that only measures the total power of users, it monitors and decomposes the start-up time, working status, and energy consumption of all electrical appliances in the household. As the goal, so as to achieve more reliable and accurate electric energy management. The power load monitoring and decomposition technology makes the user's electricity bill list like a telephone bill list, and the power consumption of various household appliances is clear at a glance, so that users can know their own electricity consumption in a timely manner, and provide a reasonable allocation of the electricity consumption time of each appliance a...

AI Technical Summary

Problems solved by technology

At present, the research on NILMD technology is still in the theoretical research stage, and the practical decomposition and identification method for multi-state intermittent operation electrical appliances, especially microwave ovens, still needs to be broken through.

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