Research on Torque Balance of Permanent-Magnet Brushless DC Motor

We would encounter the output torque balance problem of several motors during many industry productive processes such as steel rolling, papermaking, printing, electric vehicle, ship propelling and so on in modern times. However the normal speed control method can't meet with the requirements of the multi-motors output torque balance for that the load of different motor may not be equal and the different motor parameters owing to the motor productive process. So that, how to make the output torque of the different motors to be in equilibrium becomes an important problem. In this paper the author designs the torque balance control system of two motors by using digital signal processing (DSP) and modern control theory. The simulation experiment verified its performance through setting up its digital simulation model. The concrete device is in the development.