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Method and device for controlling rotating speed of motor

A motor speed and speed control technology, applied in the direction of DC motor speed/torque control, control system, electrical components, etc., can solve the problem of poor generality of motor control programs, and achieve the effect of improving versatility

Active Publication Date: 2016-05-25
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] An embodiment of the present invention provides a method for controlling the motor speed to solve the technical problem that the motor control program in the prior art is not universal. The method includes:

Method used

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  • Method and device for controlling rotating speed of motor
  • Method and device for controlling rotating speed of motor
  • Method and device for controlling rotating speed of motor

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0031] In an embodiment of the present invention, a motor speed control method is provided, such as figure 1 shown, including the following steps:

[0032] Step 101: Outputting a VSP voltage to the controlled motor every predetermined time interval, wherein the VSP voltage value input each time is different;

[0033] That is, the VSP voltage input to the controlled motor can be increased every predetermined time, for example, 0.1v every 2s, or 0.2v every 3s, and so on. Among them, the floating range of the VSP voltage is a preset VSP voltage range, and the VSP voltage is the command voltage u...

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PUM

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Abstract

The invention provides a method and a device for controlling the rotating speed of a motor. The method comprises the following steps: outputting a VSP voltage to a controlled motor at an interval of preset time, wherein the values of input VSP voltages are different every time; detecting and obtaining an actual rotating speed value corresponding to each VSP voltage in a plurality of VSP voltages; finding out a group of corresponding relation with the maximum matching degree of corresponding relation between each VSP voltage and the actual rotating speed value in the detected and obtained VSP voltages from a plurality of groups of prestored corresponding relation between the VSP voltage and the rotating speed; and taking a rotating speed control manner corresponding to the group of corresponding relation with the maximum corresponding relation matching degree as the rotating speed control manner of the controlled motor. The method solves the technical problem that an existing direct-current motor is not high in control program universality, and achieves the technical effect of effectively improving the control program universality of the direct-current motor.

Description

technical field [0001] The invention relates to the technical field of machine control, in particular to a method and device for controlling the rotational speed of a motor. Background technique [0002] After the design of the DC motor control program is completed according to the current method, during development and testing, it is often found that the designed DC motor control program is matched with motors of the same type from different manufacturers, and there will be poor matching problems such as abnormal fluctuations and obvious noise, resulting in It is necessary to repeatedly modify the program, adjust the algorithm, and repeatedly test and verify the problem, which will inevitably reduce the development efficiency and increase the development cost. [0003] For the developed motor manufacturer, when the program is designed and tested to pass the test, and then develop the same type of motor from other manufacturers, in the process of mass production, it often ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P7/00
CPCH02P7/00
Inventor 吴第来金德武
Owner GREE ELECTRIC APPLIANCES INC
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