Embedded Software and Motor Control Libraries for PXR40xx

Function GMCLIB_DecouplingPMSM_F32
Equation GMCLIB_ClarkInv_Eq3
Note
The inputs and the outputs are in full range single precision
floating point format.
4.99.5 Re-entrancy
The function is re-entrant.
4.99.6 Code Example
0.707106781
0.707106781
#include "gmclib.h"
SWLIBS_2Syst_FLT flttrAlBe;
SWLIBS_3Syst_FLT flttrAbc;
void main(void)
{
// input value
flttrAlBe.fltArg1 = 0.707106781; // input phase alpha ~ sin(45) ~
}
flttrAlBe.fltArg2 = 0.707106781; // input phase beta ~ cos(45) ~
// output should be flttrAbc.fltArg1 ~ phA = 0.707106781
// output should be flttrAbc.fltArg2 ~ phB = 0.258819045
// output should be flttrAbc.fltArg3 ~ phC = -0.965925826
GMCLIB_ClarkInv_FLT (&flttrAbc,&flttrAlBe);
// output should be flttrAbc.fltArg1 ~ phA = 0.707106781
// output should be flttrAbc.fltArg2 ~ phB = 0.258819045
// output should be flttrAbc.fltArg3 ~ phC = -0.965925826
GMCLIB_ClarkInv (&flttrAbc,&flttrAlBe,Define FLT);
// ##############################################################
// Available only if single precision floating point
// implementation selected as default
// ##############################################################
// output should be flttrAbc.fltArg1 ~ phA = 0.707106781
// output should be flttrAbc.fltArg2 ~ phB = 0.258819045
// output should be flttrAbc.fltArg3 ~ phC = -0.965925826
GMCLIB_ClarkInv (&flttrAbc,&flttrAlBe);
4.100 Function GMCLIB_DecouplingPMSM_F32
This function calculates the cross-coupling voltages to eliminate the dq axis coupling
causing on-linearity of the field oriented control.
Embedded Software and Motor Control Libraries for PXR40xx, Rev. 1.0
460 Freescale Semiconductor, Inc.