Precise speed control of a permanent magnet synchronous motor

Precise control of vibration modes become critical when one wants to push the state of the art with a permanent magnet synchronous motor (PMSM). In this paper, a complete control strategy, concerned about the design based model, controller design, and dealing with the shaping of the system input is presented. First, a modeling analysis is performed on the vector control scheme in the synchronously rotating reference frame that is used for controlling the PMSM. Then, the pole-placement scheme is used to design a desirable closed-loop system. After that, the shaped input technique together with the designed controller is considered to yield the shortest actual system input. The Matlab/Simulink software is used to perform the simulation. This simulation results verify that the eliminated oscillation response gives much better transient performance in the aspects of faster settling time and decreasing energy to supply for the PMSM.

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