Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-03-27
1993-05-04
Callahan, Timothy P.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307352, 341123, 341155, H03K 559, H03K 500
Patent
active
052085457
ABSTRACT:
In one embodiment, the sampling order of voltage/current data channels from a power transmission line is controlled so that the average sampling instant for each channel is the same. In one example involving a six-channel system, the sampling order will alternate between 1,2,3,4,5,6 and 6,5,4,3,2,1. The sampled data is applied through a digital filter which averages the sampling instant for each channel. In another embodiment, low-pass filters are positioned on each channel, the low-pass filter introducing a predetermined delay for each channel which compensates for the sampling delay on each channel where the channels are sampled in a particular sequential order, i.e. 1,2,3,4 . . . n. The shortest delay will be present in the low-pass filter associated with the first channel, a slightly longer delay will be present in the low-pass filter associated with the second channel and so on through the nth channel.
REFERENCES:
patent: 4353057 (1982-10-01), Bernet et al.
patent: 4502049 (1985-02-01), Atkinson
patent: 4866441 (1989-09-01), Conway et al.
Callahan Timothy P.
Schweitzer Engineering Laboratories Inc.
LandOfFree
Apparatus and method for eliminating phase skew in a multi-chann does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for eliminating phase skew in a multi-chann, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for eliminating phase skew in a multi-chann will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1977776