Direct numeric affinity pumps sensorless converter
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United States of America Patent
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Jun 2, 2020
Grant Date -
Dec 8, 2016
app pub date -
Jun 6, 2016
filing date -
Jun 4, 2015
priority date (Note) -
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Abstract
A pumping system having a pump includes a pump controller having a signal processor or processing module configured at least to: receive signaling containing information about pump differential pressure, flow rate and corresponding power data at motor maximum speed published by pump manufacturers, as well as instant motor power and speed; and determine corresponding signaling containing information about instant pump differential pressure and flow rate using a combined affinity equation and numerical interpolation algorithm to control the pump in the pumping system, based upon the signaling received.
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