Title :
High frequency split-zerovector PWM with harmonic reduction for induction motor drive
Author :
Murai, Y. ; Gohshi, Y. ; Hosono, I.
Author_Institution :
Dept. of Electr. & Comput. Eng., Gifu Univ., Japan
Abstract :
A high-frequency split-zero-vector method utilizing lower-harmonics-eliminated pulse-width modulation (PWM) is proposed. The selected sixth multiple lower harmonics are eliminated from the amplitude of the flux vector on the assumption that the rotation speed of the flux is kept constant. This method is easily performed by normal speed microprocessors, without using digital signal processors, and gets good results even in a very low-frequency range. The flux vector and the indexes of torque fluctuation are utilized, and the dependencies on the motor parameter are investigated. The simple dead-zone compensation process is also discussed.<>
Keywords :
electric drives; induction motors; microcomputer applications; pulse width modulation; HF split-zero-vector method; PWM; dead-zone compensation process; flux vector; induction motor drive; lower-harmonics-eliminated pulse-width modulation; microprocessors; torque fluctuation; FETs; Frequency; Induction motor drives; Induction motors; Magnetic flux; Magnetic switching; Pulse width modulation; Pulse width modulation inverters; Torque; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96682
