Acoustic Noise of Induction Motor With Low-Frequency Model Predictive Control

Abstract

This paper studies the acoustic noise of induction motor with low switching frequency model predictive control and compares its noise performance with the traditional pulse width modulation with proportional-integral controllers. First, the relationship among the air-gap magnetic field, the electromagnetic force, and the acoustic noise is modeled to describe the influence of control algorithm on the noise characteristics of motors. As the counterpart with the traditional pulse width modulation control, a finite control set model predictive control strategy with low switching frequency is proposed. The steady-state performance and switching frequency constraint ability of the proposed model predictive control strategy are verified on the experimental platform. Second, the noise spectrums of these two control strategies are sampled and compared in different operating conditions, and the influence of the weighting factor on the noise spectrum is also discussed. It is proved by the experimental results that model predictive control has better noise performance than the traditional sinusoidal pulse width modulation under the same switching frequency and the total harmonic distortion of stator current.

Improvement and application of electromagnetic vibration and noise suppression method for electric vehicle motor

“…Feng L et al proposed a low switching frequency model to predict and control the serious electromagnetic noise in IM, which affects the comfort of electric vehicles. The results show that the model has good noise control effect [ 24 ]. Yoon Y H et al proposed a control algorithm to address the issue of high noise intensity in unilateral linear IM used for propulsion of semi high-speed maglev trains.…”

Three-Phase Unbalance Analysis Method Based on Three-Phase Motor Current Instantaneous Information

“…The switching frequency of the converter generates noise [24,25]. Based on Equations ( 13) and ( 14), the analysis of the effect of switching noise is simplified by using the switching frequency superimposed on random noise, as shown in the following equation.…”

Pulse-Width Modulation Technique With Harmonic Injection in the Modulating Wave and Discontinuous Frequency Modulation for the Carrier Wave for Multilevel Inverters: An Application to the Reduction of Acoustic Noise in Induction Motors

“…The proposed strategy focuses on cascaded or H-bridge inverters and follows an efficient LS-PWM technique, which not only imposes a uniform power distribution between the cells, but also leads to lower voltage distortion and effective current harmonic distortion. However, it is well known that the reduction in noise emitted by a motor depends on the modulation technique [25], [26], [27]. In the technical literature, to the best of our knowledge, there is no recent work on induction motor noise reduction using multilevel inverters.…”