Fuzzy Energy-saving Control of Induction Motor Based on On-line Searching
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摘要: 针对传统的按转子磁链定向的感应电动机间接矢量控制系统在轻载情况下效率低的问题,提出了一种将基于在线搜索的模糊节能控制方法引入到传统的感应电动机控制系统中的设计方案。该方案在感应电动机瞬态运行时采用按转子磁链定向的间接矢量控制方法;在感应电动机稳态运行时采用基于在线搜索的模糊节能控制方法,以测得的直流输入功率作为控制量进行模糊寻优控制,可使电动机在最大效率处运行。仿真结果验证了该方案的正确性和有效性。Abstract: In view of problem of low efficiency existed in traditional indirect vector control system of induction motor based on rotor flux linkage orientation under light load, the paper proposed a design scheme of introducing fuzzy energy-saving control method based on on-line searching into traditional control system of induction motor. The scheme uses indirect vector control method based on rotor flux linkage orientation in transient operation of motor, and uses fuzzy energy-saving control method based on on-line searching in stable operation of motor, which taking DC input power as control variable to make fuzzy optimization control, so as to make motor operate at maximum efficiency. The simulation result proved correctness and effectiveness of the scheme.
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