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Publikācija: Evalution of Utilization Efficiency of Regenerative Energy in the Riga Tramcar System

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Nosaukums oriģinālvalodā Evalution of Utilization Efficiency of Regenerative Energy in the Riga Tramcar System
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.2. Elektrotehnika, elektronika, informācijas un komunikāciju tehnoloģijas
Autori Ivars Raņķis
Aigars Vītols
Anastasija Žiravecka
Atslēgas vārdi Recuperated energy, recuperation parameters, efficiency of inverting, investments efficiency
Anotācija The evaluation of utilization efficiency of the regenerative braking energy developed by tramcars in Riga is done taking into account the number of on-line tramcars during a day and its variations during a week. It is shown that the utilization of the regenerated energy by other tramcars in the same substation zone depends both on their number and on the distance from the city centre, where the maximum density of the tramcars and their maximum exploitation are observed. With all this taken into consideration it was found that the average annual utilization factor can be up to 0.42, which means that 58% of the regenerated energy (without inverting substations) is dissipated in braking resistors of tramcars as losses. It is estimated in what city districts the implementation of inverting equipment at the substations can give the greatest effect. Taking into account that in the city centre a high probability exists that the energy will be used by other cars and that in the suburbs the tramcar traffic is less intensive, the greatest effect could be expected for the medium distance from the centre. The authors present the data on the regenerative energy utilization at different substation components.
Atsauce Raņķis, I., Vītols, A., Žiravecka, A. Evalution of Utilization Efficiency of Regenerative Energy in the Riga Tramcar System. Enerģētika un elektrotehnika. Nr.20, 2007, 51.-57.lpp. ISSN 1407-7345.
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