H - Electricity – 02 – M
Patent
H - Electricity
02
M
321/41
H02M 7/48 (2006.01) H02M 7/5387 (2006.01)
Patent
CA 1143436
BALANCED CONTROL WAVEFORM FOR REDUCING INVERTER HARMONICS Abstract of the Disclosure A particular control waveform actuates the half-bridge switching elements of a three-phase power inverter in such a manner as to balance harmonic cancellation between waveform notching and low impedance filtering in obtaining a substantial sinusoidal output signal. The control waveform allows a small amount of lower order harmonics which inherently decreases the higher order harmonics generated by the notches in the control waveform so that a small filter, e.g. a five percent filter, can be used which eliminates the need for voltage regulation under various current loads and yet both the unregulated voltage fluxations and overall harmonic content of the output signal is well within acceptable tolerances for use by a public utility or the like. At the same time, the control waveform employs a relatively low per cycle switching rate which minimizes the number of off-on transitions of each of the high-current, solid state switches in the inverter thereby retaining high inverter efficiency.
313882
Marceau Daniel J.
Moriarty Robert M.
Swabey Ogilvy Renault
United Technologies Corporation
LandOfFree
Balanced control waveform for reducing inverter harmonics does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Balanced control waveform for reducing inverter harmonics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Balanced control waveform for reducing inverter harmonics will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1136569