Title :
Adaptive Full-Order Observer With High-Frequency Signal Injection for Synchronous Reluctance Motor Drives
Author :
Tuovinen, Toni ; Hinkkanen, Marko
Author_Institution :
Dept. of Electr. Eng., Aalto Univ., Aalto, Finland
Abstract :
A back electromotive force-based position observer for motion-sensorless synchronous reluctance motor (SyRM) drives is augmented with high-frequency signal-injection method for improved low-speed operation. Previously proposed observer structure is further improved to account for the cross saturation in the motor. The combined observer is experimentally evaluated using a 6.7-kW SyRM drive in low-speed operation and under various load conditions. The resulting position error at low speeds and standstill is small.
Keywords :
adaptive control; electric potential; motion control; observers; reluctance motor drives; sensorless machine control; signal processing; adaptive full-order observer; cross saturation; high-frequency signal injection method; load conditions; low-speed operation; motion-sensorless SyRM drives; position error; power 6.7 kW; synchronous reluctance motor drives; Estimation error; Inductance; Observers; Rotors; Stability analysis; Stators; Vectors; Observer; parameter uncertainties; speed sensorless; stability conditions;
Journal_Title :
Emerging and Selected Topics in Power Electronics, IEEE Journal of
DOI :
10.1109/JESTPE.2013.2294359
