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This paper presents the development and testing results of the high current bidirectional DC-DC converter system for concept demonstration of the next generation high current superconducting magnetic energy storage (SMES) system under a program funded by ARPA-E. The grid-scale SMES system could be enabled by new superconductor materials and manufacturing technologies and targets MWh level energy storage...
The paper presented a new energy storage device based on low-voltage (12.8V) Li-ion battery pack with an embedded DC-DC converter. The batteries and converter are packaged together. The integrated battery pack can be directly connected to high-voltage (400V) DC grid, enabling a modular approach for battery energy storage systems.
The series resonant dc–dc converter with clamped capacitor voltage exhibits excellent characteristics in forward operating mode, including simple control, high reliability, soft switching, high power density, and inherently limited load fault current. However, the conventional single angle phase-shift modulation that works well in the forward mode cannot reverse the power flow. In this paper, we propose...
Battery is one of the most important energy storage devices in high power energy storage applications. It is widely used in the plug-in hybrid electric vehicles (PHEVs) and energy storage systems for renewable power generation such as wind and PV. In conventional series-connected high capacity battery string, due to the imbalance of battery cells, there are a few issues such as the cell damage due...
There is a growing interest on plug-in hybrid electric vehicles (PHEV's) due to energy security and green house gas emission issues, as well as the low electricity fuel cost. As battery capacity and all-electric range of PHEV's are improved, and potentially some PHEV's or EV's need fast charging, there is increased demand to build high power off-board charging infrastructures. A charge station architecture...
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