A novel technique for the design of controller of a vector-controlled permanent magnet synchronous motor drive

Abstract

The design of the speed controller is important from the point of view of imparting desired transient and steady-state characteristic to the speed-controlled permanent magnet synchronous motor (PMSM) drive system. The design and analysis of a vector-controlled closed-loop permanent magnet synchronous motor (PMSM) drive is presented in this paper work. The effect of different factors like the time constant of proportional speed controller and the motor time constant on drive performance is analyzed. The D-partition technique is used to investigate the interaction of proportional speed time constant, amplifier gain and armature time constant on the system stability. In this paper work, a procedure has been suggested to find the optimum value of the amplifier gain to give minimum settling time, which is the most important requirement of high performance drives or high fidelity drives. Using the D-partition technique, a comprehensive performance analysis of system design is carried out in this paper work in MATLAB environment.