Predictive control of permanent magnet synchronous motor with non‐sinusoidal flux distribution for torque ripple minimisation using the recursive least square identification method

Abstract

To reduce the torque ripple of permanent magnet synchronous motor with non-sinusoidal flux distribution, a new method is presented in this study. This method is based on model predictive control (MPC). MPC is a modelbased control and requires an accurate model of the motor. A sliding mode observer, accompanied with a recursive least square estimator, is utilised to determine the magnitudes of the harmonics of the back electromotive force (EMF) waveforms. The appropriate current harmonics, considering the back EMF harmonics, are injected to shape the motor current. The interaction of non-sinusoidal back EMF and the shaped current leads to torque ripple reduction. The experimental results verify the effectiveness of the proposed method.

Assessing Finite Control Set Model Predictive Speed Controlled PMSM Performance for Deployment in Electric Vehicles

“…Wang et al used finite control set model predictive control (FCS-MPC) for a neutral point clamped multilevel inverter [17]. Abbaszadeh et al considered a PMSM with nonsinusoidal flux distribution and used the least square method to minimize torque ripple [18]. Xia et al discussed torque ripple minimization for a PMSM using an iterative learning technique [19].…”

Control System for a Single-Phase DC-Excited Flux-Switching Machine With a Torque Ripple Reduction Scheme

“…Torque ripple reduction scheme for three-phase machines have been discussed extensively in the literatures. These schemes are generally based on the predictive control [13]- [16], and current shaping techniques [17]- [19]. Reference [20] presented the design of a unique current profile to reduce torque ripple on the basis of current shaping technique for single-phase DCFSM; however, only preliminary results are presented in this study.…”

Influence of the rotor angle precision in control of interior permanent magnet synchronous machine drives and improvement method using sensorless estimator with Hall sensors

“…In [11], back-EMF-based method is used in conjunction with three very low-cost integrated circuits based on the Hall effect to estimate the rotor position of the direct-drive permanent magnet synchronous motors (PMSMs) to be used for traction purpose of an electric wheelchair. Abbaszadeh et al [12] use a sliding mode observer accompanied with a recursive least square estimator to obtain the back-EMF. A method which decreases the estimated position errors caused by the Hall position offset is developed in [13].…”

“…Abbaszadeh et al . [12] use a sliding mode observer accompanied with a recursive least square estimator to obtain the back‐EMF. A method which decreases the estimated position errors caused by the Hall position offset is developed in [13].…”