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The growing share of renewable energy technology is continuously transforming the energy sector. Using storage capacities becomes crucial to sustainably guarantee stable energy supply. In particular battery storage systems (BSS) are expected to successfully compete with alternative options for energy storage in the near future. Major issues with state-of-the-art BSS include comparatively high costs,...
A novel battery energy storage system (BESS) based on an enhanced modular multilevel converter (M2C) with the ability to switch its modules in parallel is being presented. Compared to a full-bridge M2C equipped with batteries as energy storage elements on its submodules, the losses are reduced by 20%. The raise in efficiency is thoroughly explained as well as its reliability. Its high efficiency,...
We present a novel Modular Multilevel Parallel Converter (M2PC) technology that solves key issues in the application in frequency-variable direct-drive gas turbine systems with high rotational speed as stationary power supplies as well as in mobile setups on ships, cars, and airplanes. In contrast to conventional converters, the M2PC can operate with fundamental frequencies up to the megahertz range...
A novel Modular Multilevel Parallel Converter (M2PC) for an optimized Hydrogen Gas Turbine Power Supply (HPU) is presented in this paper. This new M2PC improves the energy density, scalability and variance of the system voltage characteristics, in addition to the general advantages of the HPU concept. The basic operation modes of the M2PC topology, micro- as well as macro-topology, are described by...
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