Design And Simulation Analysis Of New Structure Winding Asynchronous Motor System For Laser Mutation Breeding

Laser mutation breeding technology is a new technology developed since the 1960 s,through specific laser seeds, make its produce new genetic variation, which in its good variety selection and breeding, this not only promoted the crop germplasm innovation in our country,and accelerate the process of the improved varieties. In order to obtain better breeding effect, in order to promote the seeds to obtain more uniform radiation, this paper designed a set of the electromechanical device can control the seed tray speed, to ensure that the seeds can be radiation,thus more excellent breed varieties.This article mainly use wound rotor asynchronous motor as the main motor, basedon the analysis of the principle and structure of the traditional wound rotor asynchronous motor and the rotor side, on the basis of the slip ring and carbon brush disadvantages of this paper proposes a new structure of wound rotor asynchronous motor. On the basis of the study as follows:Firstly, the traditional wound rotor asynchronous motor working condition is be analyzed,in view of the slip ring and carbon brush wear easily produce electric spark to cause accident faults, this paper proposes a ring structure transformer, and carries on the structure optimization,to replace the slip rings and carbon brushes. It makes motor whole integrated motor system,greatly reduce the volume of the system. This set of device has the brushless, high reliability,high precision and low running cost, etc. So it can improve the reliability of system and impact resistant ability.Secondly, in view of the SPWM technology is studied and its algorithm are introduced.SPWM method is used to control, so that the closer the waveform sine wave, improve the quality of control. At the same time the paper introduces the harmonics of SPWM control technology factors, using the principle of displacement current control method to achieve the purpose of harmonic elimination.Last, using MATLAB simulation software to build a new structure of wound rotor asynchronous motor system simulation model, a simulation system of the motor. Through to the system output waveform comparison and analysis, and verification of the model is feasible.