A method for controlling the starting of DC brushless Hallless motor
A brushless DC technology for starting the motor, applied in the direction of the starting device, etc., can solve the problems of motor jitter, restricting the motor adaptation range, slow response, etc., and achieve the effect of avoiding the small adaptation range of the motor
Active Publication Date: 2021-06-18
HUIZHOU BLUEWAY ELECTRONICS
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Problems solved by technology
However, the positioning control of brushless DC motors without Hall sensors has always been a complex problem in the industry, causing problems such as motor shaking and slow response when starting.
Seriously restrict the scope of application of the motor
Method used
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[0041] In order to make those skilled in the art more clearly understand the technical problems, technical solutions and beneficial technical effects to be solved by the present invention, the present invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.
[0042] Please refer to figure 1 , a starting method for controlling a DC brushless Hallless motor, the method comprising:
[0043] S100: When starting positioning, set the initial bridge arm conduction time;
[0044] S200: When starting positioning, open the bridge arm of the corresponding step;
[0045] S300: Collect the signal at the amplifier multiple times continuously within the timing duration, and judge whether the signal exceeds the set threshold;
[0046] S400: If yes, adjust the timing duration parameter;
[0047] S500: If not, select the maximum value of the amplifier signal in this period as the maximum value in this step period;
[0048] S600: After N cycle...
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The present invention provides a starting method for controlling a DC brushless Hallless motor. The method includes: when starting positioning, setting the initial bridge arm conduction time; when starting positioning, opening the bridge arm with a corresponding step; The signal at the amplifier is continuously collected multiple times within the timing duration, and it is judged whether the signal exceeds the set threshold; if so, the timing duration parameter is adjusted; if not, the maximum value of the amplifier signal in this period is selected as the maximum value of the step period; After N cycles, the conduction winding corresponding to the maximum value is screened out, and the best start-up conduction phase is obtained to start the motor. This technology avoids the phenomenon of small motor adaptation range and slow start-up response caused by the jitter phenomenon caused by the forced positioning of the traditional brushless and Hallless motor.
Description
technical field [0001] The present invention relates to the field of motor control, in particular to a starting method for controlling a DC brushless Hallless motor. Background technique [0002] With the increasing development of the motor industry, brushless DC motors have been widely used in many fields. It has the advantages of good speed regulation performance, small size, long life and high efficiency. However, the positioning control of the brushless DC motor without Hall sensors has always been a complicated problem in the industry, which caused problems such as motor shaking and slow response when starting. Seriously restrict the scope of adaptation of the motor. What this paper introduces is an efficient and reliable starting control of brushless Hallless DC motor through hardware design and software algorithm. It has the characteristics of wide motor adaptability, accurate and rapid starting response, etc. Contents of the invention [0003] Based on this, the...
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IPC IPC(8): H02P6/20
CPCH02P6/20
Inventor 苏炳坤刘辉朱立湘尹志明林军
Owner HUIZHOU BLUEWAY ELECTRONICS