Design and Implementation of DSP Based Drive for Crane Application

Abstract

DC drive has number of applications in the industries for the different functions like load transport, heavy material handling etc. There are many techniques are available for speed control of dc series motor, but they suffer from several disadvantages viz, they are not applicable for speed control, they require external contactors for speed reversal, they have a slow speed response. In this project the novel technique pertaining to DC drive is simulated, designed and successfully implemented to obtain the superior performance compared to conventional techniques. In this report fundamentals of DC series motors are considered and compatibility of DC series motor with crane type application is analyzed. Conventional techniques for speed control of DC series motor are given and comparison of those techniques is given according to the performance and economical consideration. The project work presents the simulation results for proposed technique for different reference speed for forward as well as in the reverse direction. From the simulation results the speed response of the motor in the close-loop operation is observed. The novel technique with the independent armature and field current control is done for hoist and bridge configuration. The novel technique with controller is also implemented and tested with the prototype module using DSP (TMS320F2811). The results confirm the approach presented in this work.