Effect of Saturation on Field Oriented Control of the New Designed Reluctance Synchronous Motor

• Main Authors: Pavol Rafajdus, Valeria Hrabovcova, Pavel Lehocky, Pavol Makys, Filip Holub
• Format: Article
• Language: English
• Published: MDPI AG 2018-11-01
• Series: Energies
• Subjects: reluctance synchronous motor (RSM); saturation; field oriented control; load angle; RSM with barriers rotor; optimization; torque measurement; torque development versus load angle
• Online Access: https://www.mdpi.com/1996-1073/11/11/3223

In this paper the effect of saturation on torque production of a reluctance synchronous motor (RSM), which was originally built as an induction motor (IM), is investigated. The rotor was replaced with new one, designed as synchronous reluctance cageless rotor with barriers, the shape and number of which were optimized to maximize the reluctance ratio. The torque measurement was done while the RSM was fed by frequency converter controlled by a microcontroller with closed loop field oriented control strategy to find out how saturation effects the developed torque at various values of the currents and speeds. It is shown how the load angle at which the maximum torque was achieved is changed. It was found out that the load angle was shifted to higher values depending on the speed of operation.