Recent articles demonstrate that sensorless drives for induction motors can operate at zero-electrical and mechanical frequencies with the aid of high-frequency signal injection techniques and processing the zero-sequence voltage signals. The paper presents some practical implementation issues affecting the performance of such a technique and shows how to improve the quality of the estimated angle. All the assessments are experimentally proved and have a general value that can be extended to other sensorless techniques injecting high-frequency signal. © 2008 IEEE.
|Titolo:||Implementation Issues in VoltageZero-Sequence-Based Encoderless Techniques|
|Data di pubblicazione:||2008|
|Appare nelle tipologie:||1.1 Articolo in rivista|