Affiliations: [a] Department of Electrical Engineering, Qatar University, Doha, Qatar
| [b] National Engineering School of Monastir, University of Monastir, Tunisia
Correspondence:
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Corresponding author. M.A. Al-Hitmi, Department of Electrical Engineering, Qatar University, Doha, Qatar. E-mail: [email protected].
Abstract: Speed control of synchronous machines using Field Oriented Control (FOC) classically uses Proportional Integral (PI) or Integral Proportional (IP) regulators that allow to achieve satisfactory goals on the dynamics of speed and torque. However, the performance deteriorates with loss of one or more phases in multiphase machines with IP regulator. This paper present comparison between the use of IP regulator and Fuzzy Logic Regulator (FLR) under same conditions applied to Five Phase Permanent Magnet Synchronous Machine (FPSM). First, modeling and performance of the FPSM are presented. In the beginning, the control is ensured in healthy mode with an IP regulator then in degraded mode when one then two phases are opened. The performances of the FLR are compared to IP ones. Better performance of FLR is established in terms of faster dynamics.
Keywords: Five phase synchronous machine, open phase, fuzzy logic
