Three-phase unbalanced treatment device with wireless field temperature warning function and realization method thereof

Abstract

The invention provides a three-phase unbalanced treatment device with a wireless field temperature warning function and a realization method thereof. A data obtaining unit obtains current feature data of a power grid. A voltage sag knowledge base forming unit extracts data having an identical feature type with the feature data from historical data, classifies the extracted data based on a preset class attribute to form a sample set, screens out data meeting a predetermined condition from the sample set to form a voltage sag strong association rule knowledge base. An identification unit determines a current voltage sag cause of the power grid in the voltage sag strong association rule knowledge base based on the current feature data of the power grid. And a treatment unit determines a grid power quality treatment compensation scheme based on the current voltage sag cause and carries out compensation on a voltage at a user side based on the grid power quality treatment compensation scheme. With the device, dependence on a waveform is avoided. On the basis of the analysis on historical data, the strong association rule in the historical voltage sag is dug out, thereby realizing prediction and treatment of future voltage sag possibility.

Description

technical field [0001] The invention relates to the technical field of power quality three-phase unbalance control, in particular to a three-phase unbalance control device with an on-site temperature wireless alarm function and an implementation method thereof. Background technique [0002] With the development of science and technology and industry, many industrial users with a high degree of automation have higher and higher requirements for power quality. In production or information technology enterprises, since most devices and single-chip-based digital controllers or power electronic devices are very sensitive to various electromagnetic interferences, very slight disturbances in the power grid will cause the above products to fail to work or some functions to decline , making the enterprise suffer huge losses. [0003] At present, the ideal power signal has a three-phase sinusoidal waveform with fixed frequency and amplitude. However, in real life, due to circuit faul...

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Problems solved by technology

In the traditional technology, the research on the cause analysis of power quality is mainly based on the experiment and simulation of the three-phase unbalance of the power grid, but the traditional technology based on the experiment and simulation has shortcomings. The complex and simplified model cannot completely simulate the real system, resulting in errors; 2. The detection equipment in the power grid can only detect the sag amplitude and duration of the voltage sag, and cannot record the waveform of a large amount of data, which leads to power quality events Deviations in the analysis of the causes

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