How to compensate time delay of a sine wave?

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Martin Maier
Martin Maier 2022-4-13
移动：Sabin 2023-1-11
I am currently working on sensorless control algorithm with a FOC and a full order SMO. The algorithm is discretized and works fine.
Now i should add an input and an output delay for the current sampling and the update of the SPVM. The figure below shows a minimal working example of the problem, where a sine wave is generated for the current, the sample order hold simulates my ADC and then I modeled a input and output delay with unit delay blocks.
Does anyone know an approach to compensate these delays?

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回答（1 个）

Mathieu NOE
Mathieu NOE 2022-4-14
移动：Sabin 2023-1-11
hello
if you know your delays and the rotationnal speed of your motor you can compute a "compensation" angle to be added to the measured angle , so it's like you have no delays in your FOC loop.
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Martin Maier
Martin Maier 2022-4-19
移动：Sabin 2023-1-11
Hello Mathie Neo,
Thank you for your help and the fast resposne.
All the bests.

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