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TMS320F28069M: InstaSPIN Lab04 IqRef_A selection

Pavlin Stoyanoff
Expert 1575 points
Part Number: TMS320F28069M

Greetings! I am using Lab04 as a reference. So my motor without load demans around _iq(0.1) set in IqRef_A to reach max rpms. The problem is when a load is added the motor demands bigger value to reach max rpms. So what is the solution? Do I have to monitor the speed_krpm? And increase IqRef_A accordingly? I think i have to passed it through a filter because speed_krpm varies. Is there a variable which i can monitor in order to control properly IqRef_A according to different load?

Thanks! 

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    TI__Guru** 112290 points
    Pavlin Stoyanoff said:
    et in IqRef_A to reach max rpms. The problem is when a load is added the motor demands bigger value to reach max rpms. So what is the solution? Do I have to monitor the speed_krpm? And increase IqRef_A accordingly?

    Yes. You should increase the torque current according to your system like the load, the speed.

    You may try to implement the lab05 with speed closed-loop if you want to achieve a stable running speed.