Meter apparatus and method for phase angle compensation...

Details Meter apparatus and method for phase angle compensation... Meter apparatus and method for phase angle compensation...

G - Physics

01

R

G01R 15/00 (2006.01) G01R 21/00 (2006.01) G01R 25/00 (2006.01)

Patent

CA 2509473

A method compensates for phase differences between sampled values of first and second AC waveforms. The method employs a phase angle compensation factor and sequentially samples a plurality of values of each of the waveforms. For a positive compensation factor, second sampled values are adjusted to correspond with first sampled values by employing, for a corresponding second sampled value, a preceding second sampled value plus the product of: (i) the compensation factor and (ii) the difference between the corresponding second sampled value and the preceding second sampled value. Alternatively, for a negative compensation factor, the second sampled values are adjusted by employing, for the corresponding second sampled value, the preceding second sampled value minus the product of: (i) the sum of one plus the compensation factor and (ii) the difference between the preceding second sampled value and the second sampled value preceding the preceding second sampled value.

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