Start-up identification method of non-intrusive non-inverter refrigerator based on hybrid power criterion

Abstract

The invention relates to a non-invasive non-inverter refrigerator starting recognition method based on mixed power criteria. The method comprises the following steps that 1, voltage and current of a main power incoming line of an indoor power grid are sampled; 2, a time window is set; an average power value corresponding to the time window at the position of the main power incoming line is calculated to form an average power sequence; 3, the average power sequence is scanned, and a mutation power increment, pre-mutation and post-mutation steady state power increments and a ratio of the mutation power increment to the pre-mutation and post-mutation steady state power increments are calculated; 4, according to the mutation power increment, the pre-mutation and post-mutation steady state power increments and the ratio of the mutation power increment to the pre-mutation and post-mutation steady state power increments, whether a non-inverter refrigerator is started or not in the indoor power grid is judged, and if the non-inverter refrigerator is not started, the step 2 is executed. The method can accurately, efficiently and rapidly recognize the non-inverter refrigerator and has the advantages of being simple, economical, easy to apply and popularize and the like.

Description

Technical field [0001] The invention belongs to the technical field of intelligent electricity use, and relates to a non-invasive identification method for non-frequency conversion refrigerators. Background technique [0002] Resident power load monitoring and decomposition technology is an emerging basic support technology for smart grids. It is different from the current smart meters that only measure the total power of users. It monitors and decomposes the start-up time, working status, and energy consumption of all household appliances As the goal, to achieve more reliable and accurate electrical energy management. The power load monitoring and decomposition technology makes the user’s electricity bill list like the telephone bill list, and the electricity consumption of various household appliances is clear at a glance, so that users can understand their electricity consumption in a timely manner, and to rationally allocate the electricity consumption time and corresponding ...

AI Technical Summary

Problems solved by technology

Due to the characteristics of long-term operation and intermittent work, it was often difficult for individuals to make judgments on the energy consumption of refrigerators in the past

[0007] At present, there is no literature to propose an accurate, effective and fast method for identifying non-inverter refrigerators

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