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Motor control system and control method

A motor control and control module technology, applied in control systems, motor control, motor generators/starters, etc., can solve problems such as reducing the service life of motors, achieve the effects of reducing starting current, reducing impact, and ensuring stable power supply

Pending Publication Date: 2021-08-27
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide a motor control system and control method for the problem that the motor starting current is too large to reduce the service life of the motor, which can effectively reduce the starting current of the motor and improve the service life of the motor.

Method used

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  • Motor control system and control method

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Embodiment Construction

[0010] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0011] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0012] It will be appreciated that spatially relative terms such as "under", "beneath", "below", "under", "on", "above" etc., may be used herein to describe the relationship between one element or f...

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Abstract

The invention relates to a motor control system and a control method. The system comprises a hydraulic system, a rotation execution mechanism and a control module, wherein the hydraulic system is connected with the rotation execution mechanism, and the control module is connected with the hydraulic system and the rotation execution mechanism; the control module is used for controlling the hydraulic system to drive the rotation execution mechanism to drive the motor to rotate through hydraulic oil stored in the energy accumulator and controlling the motor to be started after a motor rotor reaches a preset rotating speed, so that starting current is reduced, the problem that starting current of a high-power motor is too large can be effectively solved, and the service life of the motor is prolonged; and impact on a power grid can be reduced, and stable power supply is ensured.

Description

technical field [0001] The present application relates to the technical field of motors, in particular to a motor control system and control method. Background technique [0002] As a common rotary actuator, the motor is widely used in industry. Its main function is to generate rotational torque and drive the load to rotate. Since the current directly started by a high-power motor can reach 5 to 8 times the rated current of the normal operation of the motor, the service life of the motor will be reduced. How to increase the service life of the motor by reducing the starting current of the motor is an urgent problem to be solved. Contents of the invention [0003] Based on this, it is necessary to provide a motor control system and a control method for the problem of reducing the service life of the motor due to excessive starting current of the motor, which can effectively reduce the starting current of the motor and improve the service life of the motor. [0004] A moto...

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Application Information

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IPC IPC(8): H02P1/04H02P1/26H02P29/40
CPCH02P1/04H02P1/26H02P29/0022H02P29/0027H02P29/40
Inventor 刘琛华黄铭罕何哲李秀元闵光帅
Owner GREE ELECTRIC APPLIANCES INC