Fluid flow control for fluid handling systems

摘要

A controller for an electric motor in a blower system includes an input for receiving an air flow demand. The controller is configured for producing drive signals for the electric motor from the air flow demand using an equation having a plurality of terms. At least one of the terms includes a composite function S*CFMⁿ, where S is a speed of the electric motor, CFM is the air flow demand, and n>1. These teachings can also be applied to other types of fluid handling systems including, for example, liquid pumps.