Invention Grant
- Patent Title: System and method for consistent speed regulation in a variable frequency drive
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Application No.: US15085446Application Date: 2016-03-30
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Publication No.: US10333455B2Publication Date: 2019-06-25
- Inventor: Xiaomeng Cheng , Huaqiang Li , Peijun Zhu , Dongxiao Wu , Kayle Wang , Qian Zhang
- Applicant: Eaton Corporation
- Applicant Address: IE Dublin
- Assignee: Eaton Intelligent Power Limited
- Current Assignee: Eaton Intelligent Power Limited
- Current Assignee Address: IE Dublin
- Agency: Ziolkowski Patent Solutions Group, SC
- Main IPC: H02P29/10
- IPC: H02P29/10 ; H02P27/08 ; G05B19/00 ; H02P6/08

Abstract:
A system and method for speed regulation of a VFD circuit via an anti-windup control scheme that provides consistent speed response with no overshoot is disclosed. A control system for operating the VFD circuit includes a feedback controller programmed to receive a speed of a motor operating responsive to an initial torque command and process the speed of the motor to generate a feedback controller output. A feedforward controller of the control system is programmed to process a speed reference to generate a feedforward controller output. A command module of the control system is programmed to determine a torque command based on the processed outputs of the feedback and feedforward controllers and operate the VFD circuit to control the motor according to the torque command.
Public/Granted literature
- US20170288598A1 SYSTEM AND METHOD FOR CONSISTENT SPEED REGULATION IN A VARIABLE FREQUENCY DRIVE Public/Granted day:2017-10-05
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