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Inverter unit for DC substations |
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evaluated |
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By installing thyristor inverters in substations of DC systems, a feeding back of recovered braking energy into the public mains becomes a possibility. This can considerably increase recuperation rates in suburban or regional DC systems.
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Technology field: Regenerative braking and energy management
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General information
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General criteria
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Environmental criteria
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Economic criteria
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Application outside railway sector (this technology is railway specific)
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Overall rating
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Overall potential: promising |
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Time horizon: mid-term |
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The installation of inverter units in substations of local DC systems can make a substantial contribution to energy efficiency if the substation is carefully chosen in order to maximise the saving potential. For present prices, payback is critical and may be up to ten years. A comparative economic assessment of the use of inverter enhanced substations has to be made with respect to other solutions (mainly stationary energy storage). |
date created: 2002-10-09 |
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© UIC - International Union of Railways 2003 |
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