Derating of an Induction Machine under Voltage and Frequency Deviation

Obciążalność mocą silnika indukcyjnego w warunkach występowania odchylenia napięcia i częstotliwości


Gdynia Maritime University, Morska 81-87, 81–225 Gdynia, Poland, Faculty of Electrical Engineering, e-mail:


One of the most frequently appearing power quality disturbances is voltage deviation. In addition in autonomic power systems, e.g. in ships, frequency deviation often occurs. It causes additional power losses and increase in thermal loads of induction machines. This paper deals with an effect of voltage and frequency deviation on derating.


Jednym z najczęściej występujących zaburzeń jakości napięcia jest odchylenie jego wartości skutecznej. Ponadto w autonomicznych systemach elektroenergetycznych, np. na statkach, występują często odchylenia częstotliwości. Zaburzenia te powodują w silnikach indukcyjnych dodatkowe straty mocy i zwiększenie ich obciążalności cieplnej. Artykuł dotyczy wpływu odchyleń wartości skutecznej napięcia i częstotliwości na obniżenie wartości dopuszczalnej mocy i momentu silnika indukcyjnego.

electric machines, induction motors, heating.
Słowa kluczowe: 
maszyny elektryczne, silnik indukcyjny, nagrzewanie.
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Citation pattern: Pepliński M., Derating of an Induction Machine under Voltage and Frequency Deviation , Scientific Journal of Gdynia Maritime University, No. 106, pp. 60-70, 2018

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