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Motor torque control method and device, controller and motor

A torque control and torque technology, applied in the direction of motor control, control system, electrical components, etc., can solve the problems of severe motor heating, motor overheating and burning, motor coil heating, etc., and achieve the effect of reducing torque

Inactive Publication Date: 2020-09-11
SHANGHAI YOGO ROBOTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the load of the motor is unbalanced or the wind resistance of the motor is large when the motor is moving at high speed, the motor needs to continuously output a large torque to maintain its balance state, which will cause the motor coil to continue to heat up. If the heat dissipation environment of the motor winding is not ideal, resulting in A large amount of heat accumulates on the motor windings, which may cause the motor to burn out due to overheating
[0003] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: under the condition of long running time and heavy load, the motor will generate more heat, and the overheat protection means of the motor in the prior art is not ideal

Method used

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  • Motor torque control method and device, controller and motor
  • Motor torque control method and device, controller and motor
  • Motor torque control method and device, controller and motor

Examples

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Effect test

Embodiment 1

[0032] figure 1 is a flow chart of a motor torque control method according to an embodiment of the present invention, such as figure 1 As shown, the torque control method of the motor includes the following steps:

[0033] S110: Obtain the temperature value of the motor;

[0034] S120: judging whether the obtained temperature value of the motor is higher than a preset temperature threshold;

[0035] S130: When it is higher than, reduce the input current of the motor according to the nonlinear function formed between the temperature value of the motor and the input current of the motor, so as to reduce the torque of the motor.

[0036] In some embodiments, reducing the input current of the motor according to the nonlinear function formed between the temperature value of the motor and the input current of the motor in step S110 includes: according to the temperature value of the motor and the The two-line curve function formed between the input currents of the motor reduces t...

Embodiment 2

[0059] image 3 It is a functional block diagram of a motor torque control device according to an embodiment of the present invention. Such as image 3 As shown, the torque control device 200 of the motor includes:

[0060] A temperature acquisition module 210, configured to acquire the temperature value of the motor;

[0061] A temperature judging module 220, configured to judge whether the acquired temperature value of the motor is higher than a preset temperature threshold;

[0062] The torque control module 230 is configured to reduce the input current of the motor according to the nonlinear function formed between the temperature value of the motor and the input current of the motor when it is higher than moment.

[0063] In some embodiments, the torque control module 230 is specifically configured to: reduce the input current of the motor according to a two-line curve function formed between the temperature value of the motor and the input current of the motor.

[0...

Embodiment 3

[0068] The embodiment of the present invention also provides a motor controller, such as Figure 4 As shown, it includes one or more processors 301 , a communication interface 302 , a memory 303 and a communication bus 304 , where the processor 301 , the communication interface 302 and the memory 303 communicate with each other through the communication bus 304 .

[0069] Memory 303, for storing computer programs;

[0070] The processor 301 is used to implement any one of the above-mentioned motor torque control methods when executing the program stored in the memory 303

[0071] An embodiment of the present invention provides a motor, which includes any of the torque control devices for the motor as described above, or includes the controller for the motor as described above.

[0072] The communication bus mentioned in the above electronic device may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus or the like. The co...

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Abstract

The embodiment of the invention provides a motor torque control method and device, a controller and a motor. The method comprises the steps: acquiring the temperature value of a motor; judging whetherthe obtained temperature value of the motor is higher than a preset temperature threshold value or not; and if so, reducing the input current of the motor according to a nonlinear function formed between the temperature value of the motor and the input current of the motor, so as to reduce the input current of the motor and thus reduce the torque of the motor. The method can achieve the overheating protection of the motor, and the efficiency of the motor is improved.

Description

technical field [0001] The invention relates to the field of motors, in particular to a motor torque control method, device, controller and motor. Background technique [0002] As an important power source, motors are widely used. After the motor load is adjusted and balanced, the torque required for the normal operation of the motor will be smaller, and the current of the motor will also be smaller. However, when the load of the motor is unbalanced or the wind resistance of the motor is large when the motor is moving at high speed, the motor needs to continuously output a large torque to maintain its balance state, which will cause the motor coil to continue to heat up. If the heat dissipation environment of the motor winding is not ideal, resulting in A large amount of heat accumulates on the motor windings, which may cause the motor to overheat and burn out. [0003] In the process of realizing the present invention, the inventors found that there are at least the follo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P29/00H02P29/60H02P29/64H02P29/66
CPCH02P29/00H02P29/60H02P29/64H02P29/66
Inventor 颉友强
Owner SHANGHAI YOGO ROBOTICS CO LTD
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