Modified PI Controller to Improve the Performance Characteristics of the PMSM
Hamdy Mohamed Soliman1, S.M.EL. Hakim2

1Hamdy Mohamed Soliman, The development and researcher director in Cairo Merto Gereater, Helwan, Egypt.
2S. M.EL. Hakim, Department of Electrical Power and Machines Engineering, Cairo University/ Engineering College, Giza, Egypt.

Manuscript received on May 12, 2016. | Revised Manuscript received on May 18, 2016. | Manuscript published on July 05, 2016. | PP: 64-72 | Volume-6 Issue-3, July 2016. | Retrieval Number: C2884076316
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Abstract: Classical vector control for the permanent magnet synchronous motor (PMSM) is depending upon the mathematical model and hence any problem in the machine parameters or AC drives will deteriorate the performance of the drive system over all. So this paper suggested using four PI current controllers to improve the performance characteristics of the drive system. Three of them is used in the bang-bang control of inverter by rate of one for each phase and the other PI current controller is used to improving the q- axis current component at sudden applies or removes the load. this reflects the performance over all and improve it. The MATLAB Simulink is used to simulating the drive system. The proposed model of the vector control is compared to classical vector control to show the improvement occurs in the performance characteristics of the system with proposal method. The proposed cases are simulated through the MATLAB program and are operated in the laboratory. The laboratory results agreed with the simulating results that have been obtained.
Keywords: Bang-bang inverter control, PI control, PMSM, vector control.