Title :
Bus utilization of discrete CRPWM inverters for field-oriented drives
Author :
Xu, Xingyi ; Novotny, Donald W.
Author_Institution :
Square D Co., Palatine, IL, USA
Abstract :
A new discrete current-regulated pulsewidth modulation (CRPWM) scheme-Δ modulation in the synchronous frame-is introduced. This scheme and two other discrete CRPWM schemes suitable for field-oriented drives are studied and compared in terms of bus utilization. The effect of switching frequency and flux level in the machine on the performance of the current regulator is also discussed. The analysis is based primarily on simulation, with experimental results from a digital-signal-processor (DSP)-based drive used to verify the simulation results
Keywords :
electric current control; electric drives; invertors; pulse width modulation; switching; bus utilization; digital-signal-processor; discrete CRPWM inverters; discrete current-regulated pulsewidth modulation; field-oriented drives; flux level; switching frequency; synchronous frame; Drives; Pulse width modulation; Pulse width modulation inverters; Regulators; Resonant inverters; Servomotors; Switching frequency; Synchronous motors; Traction motors; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
