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Recently, the internal model control (IMC) theory is widely applied to the permanent magnet synchronous motor (PMSM) vector control system. In this paper, a double internal model control (DIMC) is proposed. The DIMC contains an improved internal model decoupling control (IMDC) and a simplified two degree of freedom internal model control (2DOF-IMC). First, in current loop, the improved IMDC can address...
In the actual permanent magnet synchronous motor servo system, the load changes is a major factor that affects system performance. In this paper, a PMSM vector control system model is estabLished in Matlab/SimuLink environment. By adjusting the parameters of controller, simulation and analysis are done on the load changes that may appear. The results demonstrate that the system is stable, with good...
Direct torque control (DTC) is a method to control machine with utilizing torque and flux of motor controlled. The torque and current ripples are occurred in the conventional DTC. Reason of undesired torque and current ripples is low number of voltage vectors applied to the motor controlled by the conventional DTC technique. Base on the analysis of basic DTC of permanent magnet synchronous motor (PMSM),...
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