- Control of Brush less DC motor with Simulink

Question

Nicky Man 2018-5-3

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https://ww2.mathworks.cn/matlabcentral/answers/398773-control-of-brush-less-dc-motor-with-simulink

移动：Sabin 2022-12-24

Hi everyone,

I am trying to control the speed of a bldc motor to run very slowly. My circuit consists of only of three components, a driver, motor, and raspberry pi.

I have been able to make the motor spin slowly, but there is a jerky kind of motion, as well as various voltage spikes. Does anyone have any ideas as to what might be going on?

I can upload my simulink program if u guys like, but it simply consists of three sine wave functions attached to the pwm blocks of the raspberry.

The components I am using are: L293D Sunnysky A2212-13 980 KV BLDC

Thanks!

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Answer 1

Hans Scharler 2018-5-11

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https://ww2.mathworks.cn/matlabcentral/answers/398773-control-of-brush-less-dc-motor-with-simulink#answer_1135682

移动：Sabin 2022-12-24

I will try to find someone to help. We also have a new Maker Community to help with hardware projects: https://www.mathworks.com/matlabcentral/maker/search.html?q=&fq=asset_type_name:discussion&page=1

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Nicky Man 2018-5-12

移动：Sabin 2022-12-24

Hello Hans,

Thanks for the comment, the issue was actually a layer of insulation on three wires running out of the bldc motors; this prevented a solid connection between the ic chip and the motor.

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