volume | PIER Journals

Abstract

To reduce the calculation time of traditional model predictive torque control (MPTC), lower torque ripple, and improve the dynamic characteristics of predictive control, a model predictive torque control strategy applied in permanent magnet synchronous motor (PMSM) based on fast predictive switching table is proposed. This paper presents the 12-sector division method first. Then, based on sector division MPTC, a fast predictive switching table is proposed to reduce the 14 candidate voltage vectors of the sector division MPTC to 5. In addition, the the Proportional Integral (PI)-based adjustable weight coefficient is designed, so that the two physical quantities in the cost function have different weights under different working conditions, which improves the dynamic response of the system. As the experiment shows, PMSM uses the control strategy of this paper to output smaller torque steady-state fluctuation and faster dynamic response.

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Dr. Cheng Zhang

Dr. Zichen Xiong

Dr. Yang Zhang

Dr. Hao Xie

Dr. Pengcheng Zhang