Undersökning av linjespänning vid återmatande bromssystem i spårvagn M31

Examensarbete för masterexamen

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Type: Examensarbete för masterexamen
Master Thesis
Title: Undersökning av linjespänning vid återmatande bromssystem i spårvagn M31
Authors: Pettersson, Filip
Olsson, Carl-Magnus
Abstract: This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg. In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels. Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time. The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel. An other problem is the big variation in voltage, where the voltage pulsates between 750V and 900V.
Keywords: Elkraftteknik;Electric power engineering
Issue Date: 2007
Publisher: Chalmers tekniska högskola / Institutionen för energi och miljö
Chalmers University of Technology / Department of Energy and Environment
URI: https://hdl.handle.net/20.500.12380/64465
Collection:Examensarbeten för masterexamen // Master Theses

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