Ziolkowski Patent Solutions Group, SC
System and method for consistent speed regulation in a variable frequency drive
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.
Eaton Intelligent Power Limited
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Kayle Huaqiang Dongxiao Xiaomeng Peijun Qian
Wang Li Wu Cheng Zhu Zhang