Three-phase PWM inverter with speed control and load compensatio

Details Three-phase PWM inverter with speed control and load compensatio Three-phase PWM inverter with speed control and load compensatio

1987-08-18

1989-07-18

Shoop, Jr., William M.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363132, 318811, 318801, H02M 114

Patent

active

048498718

ABSTRACT:
According to the present invention, there is provided a harmonically suppressed driver for a three phase full bridge pulse width modulated (PWM) inverter, for driving an AC motor. The driver generates three phase PWM waveforms for operating a motor in a speed range of from approximately 240 to 4000 rpm. Below 1800 rpm, voltage reduction is implemented by phase shifting in order to maintain constant volt-sec operation and prevent armature flux saturation. Additional load dependent flux compensation is achieved by measuring motor speed, calculating the slip and providing compensation at large slips.

REFERENCES:
patent: 4099109 (1978-07-01), Abbondanti
patent: 4337429 (1982-06-01), Stuart
patent: 4458194 (1984-07-01), Geppert et al.
patent: 4587605 (1986-05-01), Kouyama et al.
patent: 4621316 (1986-11-01), Uesugi
patent: 4656572 (1987-04-01), Caputo et al.
patent: 4686480 (1987-08-01), Katto et al.

Affiliated with

Also associated with

Rating

Three-phase PWM inverter with speed control and load compensatio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Three-phase PWM inverter with speed control and load compensatio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-phase PWM inverter with speed control and load compensatio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-176412