Control accuracy of FOC

[JAC_123]

Hello

       If the  PMSM uses FOC control algorithm, what is the control accuracy of its speed and torque?What is the efficiency of the motor?

Thanks

[JAC_123]

Thank you for your attention , but regardless of hardware, what accuracy（Speed and torque）and  efficiency can PI Control, Sliding Mode Control, Proportional Control, second order Sliding Mode observer algorithm, extended Kalman filter algorithm and high frequency signal injection respectively achieve？I just want to get a general idea of FOC.

[petervlna]

Hello,

With FOC you can achieve very high efficiency. Of course it is dependent on HW and SW design.

There are many possibilities how to do FOC. It depends in methods you use for current measurements. (single, dual, triple shunt measurement)

Its not easy to say about accuracy. Its dependent on regulators and also capabilities of your HW desing.

Best regards,

Peter

[JAC_123]

Thank you for your attention , but regardless of hardware, what accuracy（Speed and torque）and  efficiency can PI Control, Sliding Mode Control, Proportional Control, second order Sliding Mode observer algorithm, extended Kalman filter algorithm and high frequency signal injection respectively achieve？I just want to get a general idea of FOC.

[petervlna]

Well,

but regardless of hardware, what accuracy（Speed and torque）and efficiency can PI Control, Sliding Mode Control, Proportional Control, second order Sliding Mode observer algorithm, extended Kalman filter algorithm and high frequency signal injection respectively achieve？

the answer is high.

Best regards,
Peter