3 research outputs found
Multi-technology battery storage system for optimal demand-side management
Demand-side management (DSM) provides additional system flexibility for the electric energy environment. To enable the spread of DSM policies the use of automatic systems combined with a local battery energy storage system (BESS) is proposed. Following this statement, it has been developed and tested a 50 kVA low-cost multi-technology energy storage system, with a novel converter topology that permits the integration of multiple battery types or aging. It consists of a 50 kVA bidirectional three-level AC/DC converter for grid connection which feeds five 10 kW isolated bi-directional DC/DC battery converters, based on SiC and Si MOSFETs. The development leads in a pick-and-place system, adding interoperability, ease of connection and modularity
XAFS Studies of High-Valent Porphyrinato Manganèse Complexes with Ozone
We produce strong evidence of the interaction of ozone with a series of Manganese (III) porphyrinato
complexes to form a well defined reactive intermediate. In the latter species, the Manganese atom which is formally in a
tetravalent (IV) state, is (at least) hexacoordinated with the metal unambiguously lying in the basal plane of the four
pyrrolic nitrogens of the porphyrin macrocycle. Substitution of Bromine or Chlorine axial ligands by ozonids is most
likely to happen. This conclusion is also supported by XANES and EXAFS spectra recorded at the Chlorine K-edge which
suggest that ozone may even form with chlorine a complex anion