Parasitic effects of pwm-vsi control leading to torque harmonics in ac drives
Plotkin J. Almuratova N. Yerzhan A. Petrushin V.
2 March 2021MDPI AG
Energies
2021#14Issue 6
Precise torque control without pulsations is one of the major quality issues in pulse-width modulated voltage-source inverter (PWM-VSI) drives. Theoretically, it could be postulated that at frequencies of some kHz, the machine’s inertia absorbs switching frequency torque harmonics, and the resulting torque becomes smooth; though, in reality, parasitic effects in voltage source inverters may cause additional torque harmonics of low order. In particular, first, second and sixth torque harmonics are observed. Such torque harmonics are especially dangerous for normal drive operation, since they may be amplified by drive train resonances at corresponding rotational velocities. New parasitic effects in PWM-VSI control, leading to torque harmonic of low order, are described in the paper, and recommendations for their compensation are given.
6th harmonic , AC machine , Induction motor , PWM inverter , Space phasor modulation , Torque ripple
Text of the article Перейти на текст статьи
Department of Cooperative Studies, Berlin School of Economics and Law, Berlin, 10315, Germany
Electrical Machines and Electric Drive Department, Almaty University of Power Engineering and Telecommunications, Almaty, 050013, Kazakhstan
Telecommunications and Innovative Technologies Department, Almaty University of Power Engineering and Telecommunications, Almaty, 050013, Kazakhstan
Electrical Machines Department, Odessa National Polytechnic University, Odessa, 65044, Ukraine
Department of Cooperative Studies
Electrical Machines and Electric Drive Department
Telecommunications and Innovative Technologies Department
Electrical Machines Department
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026