BACKGROUND

This disclosure relates generally to systems and methods for improving motor efficiency optimization within industrial automation systems. More specifically, the present disclosure discusses controlling the voltage supplied by an inverter based on the output of an induction motor, which may be part of the industrial automation systems.

This section is intended to introduce the reader to various aspects of art that may be related to various aspects of the present techniques, which are described and/or claimed below. This discussion is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present disclosure. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art.

An industrial plant system is managed and operated using a control and monitoring system. To effectively control and efficiently operate (e.g., reducing power loss) the industrial plant system, the control and monitoring system may receive real-time data related to the operation or output of a power converter that is part of the industrial plant system to control an operation of one or more devices within the industrial plant system. Although some methods of controlling operation are directed at making changes when a connected motor is operating at a steady speed. In some cases, the speed of the motor and/or load conditions of the motor may vary during operation of the industrial plant system. As such, improved systems and methods for controlling the operation of the power converters under various motor speed and load conditions are desirable.

BRIEF DESCRIPTION

A summary of certain embodiments disclosed herein is set forth below. It should be understood that these aspects are presented merely to provide the reader with a brief summary of these certain embodiments and that these aspects are not intended to limit the scope of this disclosure. Indeed, this disclosure may encompass a variety of aspects that may not be set forth below.

In one embodiment, a system may include an inverter configured to convert a direct current (DC) voltage to an alternating current (AC) voltage and configured to supply the AC voltage to a motor. The system may also include a control system communicatively coupled to the inverter. The control system may receive a torque current feedback from the motor and may generate, based on the torque current feedback, a command torque current and a command flux current. The control system may generate, based on the command torque current and the command flux current, a command torque voltage and a command flux voltage and may generate, based on a slip frequency and a rotor frequency, a command frequency. The control system may determine one or more operating parameters for the inverter based on the command frequency, the command torque voltage, and the command flux voltage and may control the inverter based on the one or more operating parameters.

In another embodiment, A method includes receiving a current feedback associated with a motor and generating, based on the current feedback, a command current. The method also includes generating, based on the command current, a first command voltage and a second command voltage and generating, based on a slip frequency and a rotor frequency, a command frequency. The method also includes determining one or more operating parameters for an inverter based on the command frequency, the first command voltage, and the second command voltage and controlling the inverter based on the one or more operating parameters.

In yet another embodiment, a non-transitory, computer-readable medium may include instructions that, when executed, cause a processor to perform operations including receiving a torque current from a motor and generating, based on the torque current, a command torque current and a command flux current. The instructions also include generating, based on the command torque current and the command flux current, a command torque voltage and a command flux voltage and generating, based on a slip frequency and a rotor frequency, a command frequency. The instructions also include determining one or more operating parameters for an inverter based on the command frequency, the command torque voltage, and the command flux voltage and controlling the inverter based on the one or more operating parameters.

