SYSTEMS AND METHODS FOR CONTROL OF A PUMP MOTOR

    公开(公告)号:US20240128838A1

    公开(公告)日:2024-04-18

    申请号:US18484543

    申请日:2023-10-11

    CPC classification number: H02K11/35 F04D13/06

    Abstract: A control system for controlling an electric motor in a pump system. The control system includes a communications interface configured to be electrically coupled with a remote control system and receive a command therefrom. The control system further includes a processing unit coupled to the communication interface and configured to receive the command from the communications interface, process the command to determine which communication protocol among a plurality of communication protocols to employ, and control the communications interface to transmit a response to the command using at least a portion of the communication protocol.

    PUSH-IN FUSE HOLDER
    122.
    发明公开
    PUSH-IN FUSE HOLDER 审中-公开

    公开(公告)号:US20240038475A1

    公开(公告)日:2024-02-01

    申请号:US17878502

    申请日:2022-08-01

    CPC classification number: H01H85/2045 H01H85/22 H01H85/205

    Abstract: A fuse holder is disclosed. The fuse holder includes a housing having a fuse compartment and termination compartments, each termination compartment having a cable termination aperture for receiving a cable and a lock pin slot; a bus assembly disposed including current bars having a first end and a second end extending from the termination compartment to the termination compartment, the first end having fuse contacts extending from the first end, the second end including a barb extending from the second end; and, push-in clamps disposed within the termination compartment, the push-in clamps normally biased against the barbs; wherein insertion of an electrical cable into the cable termination aperture depresses and elastically deforms the push-in clamp such that a gap is formed between the barb and the push-in clamp, wherein the push-in clamp continuously applies a biasing force against the electrical cable non-removably clamping the cable into the termination aperture.

    Control system for electric fluid moving systems

    公开(公告)号:US11879472B2

    公开(公告)日:2024-01-23

    申请号:US16813307

    申请日:2020-03-09

    CPC classification number: F04D27/004 F04D25/06 H02P23/0004

    Abstract: A control system for an electric motor for a fluid moving apparatus includes a drive circuit and a processor. The drive circuit regulates power supplied to the motor to generate fluid flow. The processor is coupled to the drive circuit and controls the drive circuit to operate the motor at a first speed and torque, and at a second speed and torque, receive a first flow corresponding to the first speed and torque, determine a second flow based on a ratio of the first flow to the first speed, and corresponding to the second speed and torque. The processor is configured to define an algorithm based on the first and second speed, torque, and flow, compute a set point for a demanded flow using the algorithm, and control the drive circuit based on the set point to supply power to the motor and generate the flow.

    SYSTEMS AND METHODS FOR HYBRID DRIVE CONTROL FOR AN ELECTRIC MOTOR

    公开(公告)号:US20230421086A1

    公开(公告)日:2023-12-28

    申请号:US18464060

    申请日:2023-09-08

    CPC classification number: H02P27/06 H02P25/22

    Abstract: A motor controller for an electric motor is provided. The motor controller includes a voltage limiting circuit configured to be coupled to an alternating current (AC) source and is configured to limit a voltage at an output node of the AC source, a filter configured to be coupled to the AC source and is configured to produce a filtered line frequency AC signal, a rectifier coupled to the filter and configured to produce a direct current (DC) signal from the filtered line frequency AC signal, an inverter coupled to the rectifier and configured to produce an AC signal on an input node of the electric motor, and a line contactor coupled between the AC source and the input node of the electric motor and configured to supply the input node of the electric motor directly from the AC source to energize stator windings therewith when the inverter is disabled.

    Control system for electric fluid moving apparatus

    公开(公告)号:US11841022B2

    公开(公告)日:2023-12-12

    申请号:US16735257

    申请日:2020-01-06

    CPC classification number: F04D27/004 F04D25/06 G05D7/0676

    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.

    SYSTEMS AND METHODS FOR DYNAMICALLY CHANGING AN INVERTER SWITCHING FREQUENCY IN AN ELECTRIC MOTOR

    公开(公告)号:US20230396203A1

    公开(公告)日:2023-12-07

    申请号:US18331003

    申请日:2023-06-07

    Inventor: Justin M. Magyar

    CPC classification number: H02P27/06 H02M7/48

    Abstract: An electric motor for a pump is provided. The electric motor includes a motor controller configured to convert alternating current (AC) power supplied to a variable frequency variable voltage power for driving the electric motor at a motor output according to a commanded motor output. The motor controller includes an inverter configured to generate the variable frequency variable voltage power according to the commanded motor output and a microcontroller coupled to the inverter. The microcontroller is configured to control the inverter to operate at a first switching frequency when the motor output is less than a threshold motor output and control the inverter to operate at a second switching frequency when the motor output is greater than the threshold motor output, wherein the second switching frequency is less than the first switching frequency.

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