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Motor and current compensation control method, device, storage medium and processor thereof

A technology of current compensation and control method, which is applied in the direction of motor control, motor generator control, AC motor control, etc. It can solve the problems of DC bus voltage fluctuations and affect the reliability of motors, so as to improve reliability, suppress speed fluctuations, The Effect of Suppressing the Fluctuation Phenomenon of DC Bus Voltage

Active Publication Date: 2022-07-15
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Problems solved by technology

[0005] The object of the present invention is to provide a motor current compensation control method, device, motor, storage medium and processor to solve the DC bus voltage fluctuation phenomenon of the electrolytic capacitor permanent magnet synchronous motor control system, which affects the reliability of the motor operation To solve the problem, achieve the effect of improving the reliability of the motor operation by suppressing the DC bus voltage fluctuation phenomenon of the permanent magnet synchronous motor control system without electrolytic capacitors

Method used

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  • Motor and current compensation control method, device, storage medium and processor thereof
  • Motor and current compensation control method, device, storage medium and processor thereof
  • Motor and current compensation control method, device, storage medium and processor thereof

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[0030] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] According to an embodiment of the present invention, a current compensation control method for a motor is provided, such as figure 1 A schematic flow diagram of an embodiment of the method of the present invention is shown. The current compensation control method of the motor may include steps S110 to S150.

[0032] At step S110, according to the given speed o...

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Abstract

The invention discloses a current compensation control method, device, motor, storage medium and processor of a motor. The method includes: determining a target DC bus voltage of the motor according to a given speed of the motor; obtaining the actual DC bus voltage of the motor; Determine whether the actual DC bus voltage is less than the target DC bus voltage; if the actual DC bus voltage is less than the target DC bus voltage, the compensation current is calculated according to the voltage difference between the target DC bus voltage and the actual DC bus voltage; The sum of the compensation current is used as the running current of the motor, and the motor is controlled according to the running current. This solution improves the reliability of motor operation by suppressing the DC bus voltage fluctuation of the non-electrolytic capacitor permanent magnet synchronous motor control system.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a current compensation control method, device, motor, storage medium and processor of a motor, in particular to a motor current compensation under high frequency working conditions of a non-electrolytic capacitor permanent magnet synchronous motor speed control system Control method, device, motor, storage medium and processor. Background technique [0002] Permanent magnet synchronous motor is a kind of electric motor with simple structure, low cost and high efficiency, which is widely used in industrial engineering fields such as aerospace, CNC machine tools and electric vehicles. In the related scheme, the permanent magnet synchronous motor drive system is a vector control system. The vector control system uses two closed-loop feedback control loops of the speed loop and the current loop to control the drive voltage of the permanent magnet synchronous motor, and dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/10H02P21/14H02P21/22H02P21/05H02P25/022
CPCH02P6/10H02P21/14H02P21/22H02P21/05H02P25/022H02P2205/01H02P2207/05
Inventor 张东盛韩一博董天福
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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