In the automotive industry, electromagnetic variable reluctance (VR) sensors have been extensively used to measure engine position and speed through a toothed wheel mounted on the crankshaft. In this work, an application that already uses the VR sensing unit for engine and/or transmission has been chosen to infer, this time, the indirect position of the electric machine in a parallel Hybrid Ele...

A cost and energy efficient method of wind power generation is to connect the output of the turbine to a doubly-fed induction generator (DFIG), allowing operation at a range of variable speeds. While for electrical engineers the electromagnetic components in such a system, like the electric machine, power electronic converter and magnetic filters are of most interest, a DFIG wind turbine is a c...

This paper presents an active bearing for reducing the radiated noise of rotating machinery. This modular bearing uses piezo stacks for actuation and both force and acceleration measurements as sensing signals. The bearing is tested on an experimental test bed comprising a rotating shaft, which is mounted in a frame. Noise is radiated by a plate that is attached to the frame. The set-up is desi...

Novelty detection requires models of normality to be learnt from training data known to be normal. The first model considered in this paper is a static model trained to detect novel events associated with changes in the vibration spectra recorded from a jet engine. We describe how the distribution of energy across the harmonics of a rotating shaft can be learnt by a support vector machine model...

The largest two-shaft gas turbine in the United States has been operated in combined cycle service at the Oklahoma Gas and Electric Company Horseshoe Lake Station since May 1963. The same design unit has been operated in peaking and stand-by service at Public Service Electric and Gas (Essex, N. J.) station since December 1963. The 0.G & E. unit has a NEMA rating of 25 Mw base load. The PSEG uni...

Nowadays, the hybridisation and electrification of powertrains for marine sectors are paramount importance to reduce their carbon footprints. In this paper, a novel method is proposed schedule modes-switch an hybrid powertrain applications. The considered system composed Internal Combustion Engine mounted in parallel with Lynch DC Brushed Electric Machine deliver power at propeller shaft. two k...

Bearing voltages and associated bearing currents in electric machines driven by pulsewidth modulation converters with high switching frequencies dv/dt can cause premature failures. This article proposes a new modeling approach for the prediction of steady-state transient based on two-dimensional (2-D) electromagnetic finite element analysis coupled external circuits using measured capacitance v...