Abstract
Rotating induction motor serving as transverse device in traditional stereo garage makes system complex and inefficient. Installing linear motor in lifting platform as direct drive unit can remove intermediate links and drag vehicle loading board of parking slot directly. In this paper, control system of vertical lifting stereo garage with linear induction motor is put forward, including overall organization, operating principle and software program.Linear motor is controlled by Programmable Logic Controller (PLC) in slip frequency control method and PI algorithm. Experiment results indicate that linear motor can track reference velocitycurveand the whole stereo garage can store and take out vehicles automatically and efficiently.
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