Harmonic Analysis of Voltage Zero-Sequence-Based Encoderless Techniques
Authors:
- 13 November 2006
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industry Applications
- Vol. 42 (6) , 1548-1557
Abstract
This paper exploits the interaction between the low-frequency and the high-frequency fields created by signal-injection techniques during sensorless estimation of the air-gap flux position in induction machines. Such an interaction causes new phenomena that can be summarized in a modulation of the machine saturation level and creation of harmonics that contain information about the position of the flux. This paper analyzes the issues related to the presence of additional fields and predicts the resulting harmonic content using three different approaches such as analytical calculations, computer simulation, and finite element analysis. Experimental measurements confirm the conclusions of this paperKeywords
This publication has 14 references indexed in Scilit:
- Analysis of permanent-magnet machine for sensorless control based on high-frequency signal injectionIEEE Transactions on Industry Applications, 2004
- Comparison of Saliency-Based Sensorless Control Techniques for AC MachinesIEEE Transactions on Industry Applications, 2004
- Analysis and suppression of high-frequency inverter modulation in sensorless position-controlled induction machine drivesIEEE Transactions on Industry Applications, 2003
- Sensorless direct field orientation at zero flux frequency2002
- Sensorless control of AC machines at low speed and standstill based on the "INFORM" method2002
- A new zero-frequency flux-position detection approach for direct-field-oriented-control drivesIEEE Transactions on Industry Applications, 2000
- Transducerless position and velocity estimation in induction and salient AC machinesIEEE Transactions on Industry Applications, 1995
- Modeling of saturated AC machines including air gap flux harmonic componentsIEEE Transactions on Industry Applications, 1992
- An improved model of saturated induction machinesIEEE Transactions on Industry Applications, 1990
- Modeling and Simulation of Induction Motors with Saturable Leakage ReactancesIEEE Transactions on Industry Applications, 1984