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Abstract

The present invention provides, e.g., apparatus comprising at least one processor; at least one memory including computer program code; the at least one memory and computer program code being configured, with at least one processor, to cause the apparatus at least to: respond to signaling containing information about an instant pressure and a flow rate of fluid being pumped in a pumping system, and obtain an adaptive control curve based at least partly on the instant pressure and flow rate using an adaptive moving average filter. The adaptive moving average filter may be based at least partly on a system flow equation:

description='In-line Formulae' end='lead'SAMA_t=AMAF(Q_t/√{square root over (ΔP_t)}),description='In-line Formulae' end='tail'

where the function AMAF is an adaptive moving average filter (AMAF), and the parameters Q and ΔP are a system flow rate and differential pressure respectively. The at least one memory and computer program code may be configured to, with the at least one processor, to cause the apparatus at least to obtain an optimal control pressure set point from the adaptive control curve with respect to an instant flow rate or a moving average flow rate as

description='In-line Formulae' end='lead'SP_t=MA(Q_t)/SAMA_t,description='In-line Formulae' end='tail'

where the function MA is a moving average filter (MA), to obtain a desired pump speed through a PID control.

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First Claim