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Observer tracking fail

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dangminhducnbk
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Last seen: 5 years 7 months ago
Joined: 2019-02-15 03:30
Posts: 3
Observer tracking fail

Hi everyone,

I tried to simulink the sensorless FOC observer Ben used in his code. I used fixed observer gain and I changed this value in a wide range (from 1000 to 50000), but the observer could only track the position in low speed and failed in high speed. In Ben's code, I saw him changed this value every observer update. 

Is this the key for high speed tracking?

Thanks a lot. 

const float gamma_half = m_gamma_now * 0.5;