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Several topologies have been proposed for combining batteries and ultracapacitors (UC) to build a hybrid energy storage system (HESS). It is essential to quantify the performance benefits of these different circuit topologies. This will establish a metric for evaluating the performance of new topologies as well as providing the basis to select a certain topology and design a HESS optimized for the...
To obtain highest efficiency in electric vehicles and to increase the lifetime of the traction battery, a battery backup system is mandatory. In this paper, the investigation of a system for an electric lift truck propulsion system consisting of Electric Double Layer Capacitors and a DC/DC-converter, is presented. Primarily, the super capacitor voltage range is analyzed comparing super capacitor,...
Plug-in hybrid electric vehicles (PHEVs) are an emerging technology in the market and are helping to offset the negative effects of existing transportation methods that primarily rely on fossil fuel sources. As PHEVs are being introduced into the market, renewable energy sources such as solar power are taking a larger part in the energy sector. A need for high efficiency battery charging is required...
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