畢業(yè)設(shè)計(jì)三相異步電動(dòng)機(jī)軟啟動(dòng)仿真研究-全文預(yù)覽
【正文】 of soft start system and way ofimplementation，proposed 由e current limit start with slope voltage start toge由ertwo kinds of control mode，design of structure of soft st缸t system，established the soft start of the simulation model.First startup of the characteristics of asynchronous motor 由is paper made theοretical analysis，secondly using the simulation method of conventional starting and soft startof asynchronous motor startup performance were studied. According to the working principle of soft start，the use of thyristor ac voltage regulation circuit as the main circuit of soft start，and current feedback control is introduced into model as control circuit，the soft st町t simulation model is established，through theoretical analysis， shows 也at the construction of the model is reasonable. Soft start model simulation， the simulation results show that the current limiting p盯t with current feedback closed loop control method can achieve the desired control effect，which can make motor start smoothly and reliably.Keywords: Threephase as嚴(yán)lchronous
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