Research On The Control System Of Intermittent Mechanical Equipment Driven By Linear Induction Motor

With the development of economy and lack of energy, the demands of the product precision and surface quality are increasing. Energy saving and emission reduction becomes more and more important. With the development of linear motor and control system, the application of linear motor is increasingly widespread. There is no mechanical transmission part in the system which is directly driven by linear motor. The advantages of this system are as follows:simplified structure, lower noise, less loss and higher precision, etc.The paper takes the linear induction motor (LIM) as study object. The paper, based on tamping machine and punching machine, introduces the theory, advantages and structure. According to the different demands, it puts forward different control methods for tamping machine and punching machine based on four control systems.This paper analyzes the starting thrust characteristics of tubular linear induction motor (TLIM) which directly drives the intermittent mechanical equipment. Simulation model is built in ANSOFT. It analyzes the influence on the starting thrust of the motor parameters. It would be helpful for design of the motor. Designs a test platform of punching machine and do some experiment analysis.Accounting for longitudinal end effect, the mathematical model of the LIM and the vector control system are given. And the vector control system is built in SIMULINK. The inverter is driven by SVPWM. The analysis of the control of this motor would be given.At last, this paper designs the control system respectively based on ATmega48and DSP2812. At the same time, the realization of SVPWM algorithm is deduced.