关键词: 三相异步电动机, 频繁项集, 节能, 调压, 控制参数, 自寻优

Abstract: The operation of three-phase asynchronous motors generally adopts frequency conversion speed regulation method to achieve voltage regulation and energy-saving control according to the fixed load mode, its application in multi load conditions can easily lead to high energy consumption during motor operation. In order to reduce the energy consumption of motor operation under multiple load conditions, a voltage regulation energy-saving self optimization control
technology for three-phase asynchronous motors based on frequent itemsets was proposed. Using frequent itemset mining techniques to screen massive three-phase asynchronous motor operation data and clarify the dynamic energy consumption law of the motor. Construct a voltage regulation and energy-saving self optimization control framework, and design a control parameter self optimization function with the goal of minimizing total electrical losses. Using improved whale optimization algorithm for iterative optimization solution, achieving self optimization control for voltage regulation and energy saving. The
experimental results show that after the implementation of this control technology, the total electrical loss of the three-phase asynchronous motor under load changes was less than 18 W, demonstrating excellent energy-saving control effect.

Key words: three-phase asynchronous motor, frequent itemset, energy-saving, voltage regulation, control parameters, self-optimization