3.5.5 mcRpeI_RotorPositionEstim

C

/* Perform floating point rotor position estimation*/
void mcRpeI_RotorPositionEstim(  const tmcRpe_Parameters_s * const pParameters,
                                                     const tmcTypes_AlphaBeta_s * pIAlphaBeta,
                                                     const tmcTypes_AlphaBeta_s * pUAlphaBeta,
                                                     tmcTypes_AlphaBeta_s * pEAlphaBeta,
                                                     float32_t * pAngle, float32_t * pSpeed )	

/* Perform fixed point rotor position estimation*/
void mcRpeI_RotorPositionEstim(  const tmcRpe_Parameters_s * const pParameters,
                                                     const tmcTypes_AlphaBeta_s * pIAlphaBeta,
                                                     const tmcTypes_AlphaBeta_s * pUAlphaBeta,
                                                     tmcTypes_AlphaBeta_s * const pEAlphaBeta,
                                                     uint16_t * pAngle, int16_t * pSpeed )

Summary

Performs the rotor position estimation.

Description

This function estimates the rotor position and speed for a PMSM motor. It utilizes the measured currents and voltages in the alpha-beta reference frame to calculate the back-EMF using a user-defined position estimation technique. From this calculation, it derives the rotor's angular position and speed. For a detailed explanation, please refer to the Harmony QSpin documentation.

Precondition

Rotor position estimation module must be initialized and enabled.

Parameters

Returns

None

Example

// Define the rotor position estimation module data structure
tmcRpe_Parameters_s rpeParameters;
tmcTypes_AlphaBeta_s currentAlphaBeta, voltageAlphaBeta, backEmfAlphaBeta;
float32_t rotorAngle, rotorSpeed;

/** Estimate rotor position */
mcRpeI_RotorPositionEstim(&rpeParameters, &currentAlphaBeta, &voltageAlphaBeta, &backEmfAlphaBeta, &rotorAngle, &rotorSpeed);
    

Remarks