Duty cycle based AC power control with reduced voltage fluctuati

Details Duty cycle based AC power control with reduced voltage fluctuati Duty cycle based AC power control with reduced voltage fluctuati

1997-09-25

1999-02-02

Sterrett, Jeffrey

Electricity: power supply or regulation systems

External or operator controlled

Zero switching

323322, H05B 3702

Patent

active

058670165

ABSTRACT:
A duty cycle based AC power control method reduces objectionable voltage fluctuations at a frequency that causes "flicker" by shifting the frequency of actuations of controlled devices to frequencies significantly greater than and/or less than the flicker sensitive frequency. The frequency of actuations may be redistributed (1) by segmenting the devices to provide approximately equal power requirements per actuation, (2) by providing one-half cycle actuation pulses rather than one cycle actuation pulses, and/or (3) by spacing the actuations evenly over a given time period and forcing the aggregate demand to follow a slowly rising/falling envelope. The result is the minimization of power distribution at the flicker frequency.

REFERENCES:
patent: 3989999 (1976-11-01), Thompson et al.
patent: 4047097 (1977-09-01), Gyugyi et al.
patent: 4234842 (1980-11-01), Brennen et al.
patent: 4531086 (1985-07-01), Schmid et al.
patent: 5155740 (1992-10-01), Ao et al.
patent: 5789723 (1998-08-01), Hirst
patent: 5796245 (1998-08-01), Beaulieu et al.

Affiliated with

Also associated with

Rating

Duty cycle based AC power control with reduced voltage fluctuati does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Duty cycle based AC power control with reduced voltage fluctuati, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Duty cycle based AC power control with reduced voltage fluctuati will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1120569