@inproceedings{09c2b0fc80004a8e9a9cf6f2eec76547,
title = "Short-circuit faults in high-speed PM machines with parallel strands and coils",
abstract = "Electrical machines for safety critical applications need to be able to withstand all possible short-circuits, including those between individual turns. In high-speed machines multiple parallel strands may be used to reduce AC losses in the winding, increasing the likelihood of a turn-level short-circuit. This paper considers the consequences of using parallel strands on the short-circuit losses. Additionally, the effect of using a PWM voltage supply is also considered. It is found that using multiple parallel strands reduces the local losses that occur during a short-circuit, but at the same time slightly increases the total losses. Also, local fault currents can be reduced better with a remedial terminal short-circuit when using parallel strands, suggesting a small safety benefit. The effect of supply voltage harmonics on the maximum short-circuit losses is found to be negligible.",
keywords = "fault-tolerant, permanent-magnet machine, shortcircuit",
author = "{van der Geest}, M. and H. Polinder and J.A. Ferreira",
note = "Harvest; IET PEMD 2014 : 7th IET International Conference on Power Electronics, Machines and Drives ; Conference date: 08-04-2014 Through 10-04-2014",
year = "2014",
doi = "10.1049/cp.2014.0467",
language = "English",
isbn = "978-1-84919-815-8",
publisher = "IET",
pages = "1--6",
editor = "A. Forsyth",
booktitle = "Proceedings - 7th IET International Conference on Power Electronics, Machines and Drives",
}