TY - GEN
T1 - Unbalance detection in electrical engines using an in-line fiber etalon
AU - Corres, Jesus M.
AU - Bravo, Javier
AU - Arregui, Francisco J.
AU - Matias, Ignacio R.
PY - 2005
Y1 - 2005
N2 - In this work an indirect method for the detection of voltage unbalance in electrical engines using an optical fiber sensor is presented. The in-line fiber etalon structure has been designed and used to detect 0-5% voltage unbalances in the frequency range up to 500 Hz. The interferometric sensing mechanism of the sensor allows a high sensitivity with the additional advantages of EMI immunity and high dielectric isolation. In order to prove this claim, a 1.5 kW squirrel cage induction motor is unbalanced and its vibration analyzed. It is shown that a precise unbalance factor can be detected without accessing to the electric part of the machine and an accurate monitoring can be obtained using the analysis proposed. This scheme can be applied to reduce the oscillating electromagnetic torque, power losses and temperature rise due to unbalance, and leading to a higher efficiency and the extension of the life of the machine.
AB - In this work an indirect method for the detection of voltage unbalance in electrical engines using an optical fiber sensor is presented. The in-line fiber etalon structure has been designed and used to detect 0-5% voltage unbalances in the frequency range up to 500 Hz. The interferometric sensing mechanism of the sensor allows a high sensitivity with the additional advantages of EMI immunity and high dielectric isolation. In order to prove this claim, a 1.5 kW squirrel cage induction motor is unbalanced and its vibration analyzed. It is shown that a precise unbalance factor can be detected without accessing to the electric part of the machine and an accurate monitoring can be obtained using the analysis proposed. This scheme can be applied to reduce the oscillating electromagnetic torque, power losses and temperature rise due to unbalance, and leading to a higher efficiency and the extension of the life of the machine.
UR - https://www.scopus.com/pages/publications/33847252635
U2 - 10.1109/ICSENS.2005.1597957
DO - 10.1109/ICSENS.2005.1597957
M3 - Conference contribution
AN - SCOPUS:33847252635
SN - 0780390563
SN - 9780780390560
T3 - Proceedings of IEEE Sensors
SP - 1347
EP - 1350
BT - Proceedings of the Fourth IEEE Conference on Sensors 2005
T2 - Fourth IEEE Conference on Sensors 2005
Y2 - 31 October 2005 through 3 November 2005
ER -