Title :
A dynamic angle calibration method for sensored FOC-controlled IPMSM in field weakening region
Author :
Ludwig, F. ; Mockel, Habil Andreas
Author_Institution :
Inst. for Electr. Power & Control Eng., Tech. Univ. Ilmenau, Ilmenau, Germany
Abstract :
In this paper a new method of dynamic flux angle adjustment as a function of field weakening d-axis current by passing through a pre-application teach-in process is proposed. The aim is to reduce torque ripple, power dissipation in the electric drive system and instability of the current control loop caused by faulty rotor flux angle information. Torque-forming parts of the supposed d-current are measured at idle and iteratively forced to zero by varying the actual flux angle. Experiments showed that the proposed calibration method is able to compensate flux angle shifts and their effects on the operation behavior at field weakening.
Keywords :
angular measurement; calibration; electric current control; electric drives; machine vector control; permanent magnet machines; rotors; synchronous machines; torque control; current control loop; dynamic angle calibration method; dynamic flux angle adjustment; electric drive system; faulty rotor flux angle information; field oriented control; field weakening d-axis current; field weakening region; instability reduction; interior permanent magnet synchronous machines; power dissipation reduction; preapplication teach-in process; sensored FOC-controlled IPMSM; torque ripple reduction; torque-forming part measurement; Calibration; Dynamics; Microcontrollers; Power systems; Rotors; Stators; Torque; angle adjustment; angle calibration; field weakening; permanent magnet synchronous machine;
Conference_Titel :
Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2014 International Symposium on
Conference_Location :
Ischia
DOI :
10.1109/SPEEDAM.2014.6871923
