Electrical Signature Analysis for Induction Motor Driven Thruster Assemblies
K.W. Kruimer (TU Delft - Mechanical Engineering)
H. Polinder – Mentor (TU Delft - Mechanical Engineering)
A. Coraddu – Mentor (TU Delft - Mechanical Engineering)
Maarten Langelaar – Mentor (Allseas Engineering)
D. Boskos – Graduation committee member (TU Delft - Mechanical Engineering)
J. Dong – Graduation committee member (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Andre Veltman – Graduation committee member
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Abstract
This research analyses the potential of Electrical Signature Analysis (ESA) as a means for condition monitoring of mechanical defects of induction motor driven thruster assemblies in the maritime industry. This is done by measuring the three phase current and voltage of three thrusters, with different health conditions, of a marine vessel sailing at different speeds. In this data, the mechanical behaviour of the machines is detected by plotting the frequency spectra of various electrical parameters, such as complex current and torque. After successfully identifying mechanical behaviour and defects, a suggested approach for the implementation of ESA as a means for condition monitoring is presented.