Optimal Control For Ac Drives Supplied From Pwm Voltage Source Inverter.

2005 ◽  
Author(s):  
E. Rosu ◽  
M. Gaiceanu ◽  
I. Bivol
Keyword(s):  
Optimal Control ◽  
Voltage Source ◽  
Voltage Source Inverter ◽  
Ac Drives

scholarly journals Parasitic Effects of PWM-VSI Control Leading to Torque Harmonics in AC Drives

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1713
Author(s):  
Juriy Plotkin ◽  
Nurgul Almuratova ◽  
Assel Yerzhan ◽  
Victor Petrushin
Keyword(s):  
Pulse Width ◽  
Torque Control ◽  
Voltage Source ◽  
Switching Frequency ◽  
Voltage Source Inverter ◽  
Pulse Width Modulated ◽  
Voltage Source Inverters ◽  
Ac Drives ◽  
Parasitic Effects ◽  
Low Order

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.

Sign in / Sign up

Export Citation Format

Share Document