Impact of FOC for Induction Machine Drive Using SVPWM and RPWM Strategies on Acoustic Noise

Electric motor control represents an important interest for industry. Thus, induction machines provide major source of acoustic noise. Field Oriented Control FOC offers an attractive solution to achieve high performance in variable-speed applications. This control consists to make the asynchronous machine control analogous to that of the DC machine where there is a natural decoupling between the rotor flux and electromagnetic torque. SVPWM and RPWM modulation techniques are also applied to supply systems in closed loop. The aim of this paper is to analyze the interaction between the inverter and the machine in closed loop and to estimate the level of noise emitted by the FOC control as a function of the modulation technique applied. For that we demonstrated and discussed the performance of the FOC control on the electrical and mechanical quantities produced by the machine. In addition, we have shown and compared the stator current harmonic spectra for each modulation technique in open and closed loop.