Title :
A simplified inverter model for on-line control and simulation
Author :
Kerkman, Russel J. ; Seibel, Brian J. ; Brod, David M. ; Rowan, Timothy M. ; Leggate, David
Author_Institution :
Allen-Bradley, Mequon, WI, USA
Abstract :
A simplified fundamental component model for sine triangle comparison pulse width modulation (PWM) inverters operating in the transition region is presented. The model is evaluated through experimental verification and bv comparing it with detailed simulations of AC motor drives. Results from a real time control application show that the model compensates for the reduced inverter gain due to bus voltage variation and operation in the pulse dropping region. Finally. a technique for third harmonic injection in a current regulated PWM (CRPWM) inverter is demonstrated. providing the incentive to investigate a simplified inverter model that incorporates third-harmonic effects
Keywords :
AC motors; compensation; control system analysis; electric drives; harmonics; invertors; machine control; pulse width modulation; real-time systems; AC motor drives; PWM; bus voltage variation; compensation; fundamental component; gain; inverter model; pulse dropping region; real time control; sine triangle comparison; third harmonic injection; transition region; AC motors; Industry Applications Society; Open loop systems; Power electronics; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Region 2; Space vector pulse width modulation; Voltage control;
Journal_Title :
Industry Applications, IEEE Transactions on
