公开(公告)号：US11611302B2

公开(公告)日：2023-03-21

申请号：US17481859

申请日：2021-09-22

Applicant: Emerson Electric Co.

Inventor： Harshal Manik Pawar ,  John Francis Broker

IPC: H02P21/18 ,  H02P21/00

Abstract: Disclosed are exemplary embodiments of systems and methods for controlling inducer motor speed. In an exemplary embodiment, a method includes changing stator voltage of an inducer motor (e.g., by changing a firing angle of a triac, using a transistor, a silicon controlled rectifier or semiconductor controlled rectifier (SCR), other switching device, etc.); determining actual inducer motor speed (e.g., by using a hall effect sensor or other speed sensor, etc.); and after determining the actual inducer motor speed, changing the motor stator voltage (e.g., by changing the firing angle of the triac, etc.) to a value at which the actual inducer motor speed is controllably regulated and/or maintained substantially at a set speed.