Hybrid current criterion based non-invasive non-variable frequency air conditioner starting identification method

Abstract

The invention discloses a hybrid current criterion based non-invasive non-variable frequency air conditioner starting identification method. According to the method, the non-variable frequency air conditioner starting can be accurately, effectively and rapidly identified according to actual voltage and current and according to average power increment, starting inrush current multiple and 2nd harmonic proportion coefficient of a user incoming end; and when the steady-state average power increment of the user incoming end is greater than 500W and the user incoming end has 5 to 9 times of starting inrush current multiples and 5-15% of 2nd harmonic proportion coefficient, the non-variable frequency air conditioner starting is judged to exist. The invention provides an effective judgment method for identification of non-variable frequency air conditioner starting. By the method, the non-variable frequency air conditioner starting can be accurately identified in no need of entering a residential home, the method has the advantages of simplicity, economy, easiness in promotion and application and the like, an identification result helps a user to know the starting running characteristic and energy consumption condition of a large-power non-variable frequency air conditioner, and the method can be used for management of a power grid company on a demand side of the air conditioner.

Description

technical field [0001] The invention relates to an identification method for starting a non-inverter air conditioner, in particular to a non-intrusive identification method for starting a non-inverter air conditioner based on a mixed current criterion. Background technique [0002] With my country's rapid economic development and climate warming, the load level and load composition of some central cities' urban networks have changed, especially the number of air-conditioning (air conditioners, refrigerators and freezers) loads has increased rapidly. In 2013, Liuyang, Hunan The maximum load of the power grid (county power grid) reaches 539MW, of which the air-conditioning load has accounted for more than 20% of the maximum load in summer, and even exceeds 30% in some areas, and the air-conditioning load will show a high-speed growth trend in the next few years. Affected by the air-conditioning load, the electricity load of the power grid increases rapidly, and the peak-to-vall...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the deficiencies of the prior art, and provide a non-invasive non-inverter air conditioner start-up identification method based on mixed current criteria, which solves the problem of accurately, effectively and quickly identifying the start-up of non-inverter air conditioners without entering residents’ homes help users understand the start-up and operation characteristics and energy consumption of high-power non-inverter air conditioners

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