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Motor start method and device, electronic speed regulator, and unmanned aerial vehicle

A technology of motor startup and motor speed, applied in the field of unmanned aerial vehicles, can solve the problems of complex motor startup process, cumbersome state switching, and many parameter adjustments.

Active Publication Date: 2018-10-23
SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the process of realizing the present invention, the inventors found that there are at least the following problems in the related art: using the above motor starting method, the state switching is cumbersome and the parameters are adjusted too much, which makes the motor starting process complicated

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  • Motor start method and device, electronic speed regulator, and unmanned aerial vehicle
  • Motor start method and device, electronic speed regulator, and unmanned aerial vehicle
  • Motor start method and device, electronic speed regulator, and unmanned aerial vehicle

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Embodiment Construction

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0052] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0053] The motor starting method and device provided by the embodiments of the present invention are suitable for figure 1 The application scenario shown includes the motor 10 and the electronic speed controller 20 . The electronic governor 20 in...

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Abstract

The embodiment of the invention relates to a motor start method and device, an electronic speed regulator, and an unmanned aerial vehicle. The method comprises the steps: in the section 0 to t0: taking a first specified voltage as a current q-axis voltage, performing closed-loop control of a d-axis current according to a first preset current command to obtain the current d-axis voltage, and controlling a motor according to the current q-axis voltage, the current d-axis voltage and preset rotor position information; in the section t0 to t2: taking a second specified voltage as a current q-axisvoltage, obtaining a current rotating speed of the motor, obtaining the current rotor position information according to a preset minimum rotating speed if the current rotating speed of the motor is less than the preset minimum rotating speed, or else obtaining the current rotor position information according to the current rotating speed of the motor, performing closed-loop control of the d-axis current to obtain the current d-axis voltage, and controlling the motor according to the current q-axis voltage, the current d-axis voltage, and the current rotor position information. An open loop control step is saved and the method is simple.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of motor control, in particular to a method and device for starting a motor, an electronic governor and an unmanned aerial vehicle. Background technique [0002] During the starting process of the motor, the estimation of the rotational speed and angle of the rotor is very important. The motor starting method using the position sensorless control method to estimate the rotational speed and angle of the rotor has been widely used because of the simplicity of the scheme. However, the position sensorless control method will have the problem of inaccurate speed and angle estimation when the motor speed is low. Therefore, it is first necessary to adopt an open-loop control method to drive the motor. When the motor speed is higher than a certain value, it will start The position sensorless control method is used to estimate the speed and angle more accurately. In the prior art, a three-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/18H02P21/26H02P21/34
CPCH02P21/18H02P21/26H02P21/34H02P2205/01
Inventor 陈毅东
Owner SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD