Hall Sensor Delay

[isaaconyourside]

Hey andrewrays,

Great model so far, I had a quick question I was hope you could help out with. I was wondering if there was a way to insert a hall sensor delay to the model? Hall sensors typically have an output propagation delay and I was wondering what kind of differences this parameter could make to my motor system.

Looking forward to your response, thanks!

Best,
Isaac

[andrewrays]

Hello, Isaac
You could add a Delay block in hall sensors feedback. With that, you can choose the delay length that your system requires. However, the model will operate as a discrete system.

[isaaconyourside]

Hello Andrew,
That is what I was thinking of doing, I just was not sure if it would affect the simulations commutation like I am hoping it would. What I am trying to simulate is if there are any commutation errors being caused the hall sensor delay. So I would imagine to see more current consumption due to the error. Would this come across in this simulation?

Best,
Isaac

[andrewrays]

Hello,
Of course it will affect the simulation results. I have simulated the model with delays considering motor's control system has sample time 5e-4 sec (20 kHz). I have added the following delays: for H1 - 5 ts, for H2 - 10 ts, for H3 - 15 ts, where ts is sample time of the control system

Current plots have also changed as algorithm works improperly.

Is that what you asked me about?