TMS320F28335: How to configure the parameters of Ib and Vb in SMOPOS_CONST when using PMSM Sliding-Mode Rotor Position Observer of TI?

Hi All

With TI TMS320F28335, I am trying to use Sliding-Mode Rotor Position Observer of PMSM provided by TI.

I am using the modules of "smopos_const.h" and "smopos.h".

I have some questions, could you please help me?

1.

TI provides sliding-mode rotor position observer for PMSM. Can I used it for both of SPMSM and IPMSM? Or it is just for SPMSM?

2.

When using TI SMOPOS, the paramters of Ib and Vb are needed to configure. How to configure them?

Regarding to Ib, is it RMS value? And is it the maximum motor current?

Regarding to Vb, the voltage is different at different speed, how much it needs to be configured?  Thank you very much.

typedef struct  {

                  float32  Rs;              // Input: Stator resistance (ohm)
                  float32  Ls;              // Input: Stator inductance (H)
                  float32  Ib;               // Input: Base phase current (amp)
                  float32  Vb;             // Input: Base phase voltage (volt)
                  float32  Ts;              // Input: Sampling period in sec
                  float32  Fsmopos;         // Output: constant using in observed current calculation
                  float32  Gsmopos;         // Output: constant using in observed current calculation

} SMOPOS_CONST;