Output details

Current transients in the small salient-pole alternator caused by sudden short-circuit and synchronisation events

This paper discusses the physical processes linked to events that cause voltage shifts at the terminals of an alternator. The paper clearly demonstrates where classical dq theory is lacking with regard to small salient-pole alternators. The major contribution of the paper is that d-axis and q-axis current components have been identified and used to provide a credible explanation of the event-specific nature of different synchronisation and short-circuit events. This output was instrumental in attracting funding from UK power utilities (SSE £108k ‘loss-of-mains using phasor measurement’), the work also facilitated EPSRC SUPERGEN ‘Ampers’ (EP/D034531/1).