公开(公告)号：WO2020146387A1

公开(公告)日：2020-07-16

申请号：PCT/US2020/012582

申请日：2020-01-07

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： YANG, Bin ,  BEIFUS, Brian Lee ,  BECERRA, Roger Carlos

IPC: F24F11/75 ,  F24F11/63 ,  F24F11/77 ,  F04D27/00

Abstract: A control system is provided for an electric motor configured to drive a fluid moving apparatus to generate a fluid-flow. The control system includes a drive circuit configured to regulate power supplied to a stator of the motor to turn a rotor and generate the fluid-flow, and a processor that computes a value proportional to at least one of a system resistance or a static pressure for the fluid moving apparatus based on a fixed set point for a first control parameter and a feedback parameter. The processor receives a fluid-flow rate demand and computes an operating set point for a second control parameter based on the fluid-flow rate demand and the value proportional to the system resistance or the static pressure. The processor controls the drive circuit based on the operating set point to supply power to the motor and operate the fluid moving apparatus to generate the fluid-flow.

公开(公告)号：EP4071365A1

公开(公告)日：2022-10-12

申请号：EP22166710.8

申请日：2022-04-05

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： YANG, Bin ,  BEIFUS, Brian Lee ,  BECERRA, Roger Carlos

IPC: F04D27/00 ,  F24F11/75 ,  F24F11/77 ,  H02P6/06 ,  H02P6/28

Abstract: A control system for an electric motor (106) configured to drive a fluid-moving apparatus. The control system includes a drive circuit (120) and a processor (114, 201) coupled in communication with the drive circuit (120). The processor (114, 201) is configured to control the drive circuit (120) to operate the electric motor (106) at a plurality of control values of a control parameter and determine, for each of the plurality of control values, a fluid-flow value and a feedback value, the feedback value corresponding to a feedback parameter, compute a mathematical relationship between fluid-flow rate and one of the control parameter or the feedback parameter, receive a fluid-flow rate demand value, compute an operating setpoint for the control parameter based on the fluid-flow rate demand value and the computed mathematical relationship, and control the drive circuit (120) to operate the electric motor (106) at the operating setpoint.