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Power Electronics and Wind Power GERTMAR Lars Roles: ABB’s present stakes and earlier experiences An overall objective for ABB’s partnerships and activities in R&D is not only to provide components to be used inside the wind turbines and inside the collection and transmission, C&T, grid. There is also an objective to provide remedies which enhance the commercial value of electric power produced by wind turbine facilities and from other renewable facilities so as to make that electric power as commercially valuable and fungible as electric power produced by dispatched traditional power plants such as fossil fuel plants, hydro-electric plants, nuclear plants and the like. Renewables energy solutions are intended to be used as supplementing electrical energy all over the world in regions with growing energy demands, Fig. 17, even though most examples in this presentation are chosen from the countries in Scandinavia and from the Netherlands and the north- western Germany, where only approximately 3 % of the world’s electrical energy production is consumed. The primary energy distribution measured all over the world is mainly changing from oil to gas as shown in Fig. 17, while renewable sources are negligible among all primary sources. Fig. 17: a) Energy consumption (stacked area diagram). b) The world primary energy distribution (100 % stacked area). a) & b) with the prognosis starting from 1990 [35, 36] A need for different types of technology development and of cooperation areas was described and is summarized in Fig. 18. ABB’s main long-term issues to establish wind power are: to develop intra-structures, like the electro-mechanical drive-trains, in the wind turbine generators, WTGs, with and without power electronics; and to develop matching infra-structures like SVC-stabilized AC interconnections as well as HVDC systems for collection and transmission, from the generators to the mains; in order to be cost-effective and avoid physical “electricity storage” & hydrogen. ABB sold recently its nuclear company to British Nuclear Fuel Ltd, BNFL, who operates it under the well-known company name Westinghouse. ABB’s large-scale traditional power generation business was sold to Alstom, a few years after the invention of the high-voltage generator, Powerformer®. ABB is nevertheless active within R&D&D (research & development & demonstration) and/or sales of components/subsystems in electrical power generation with CHP (combined heat and power), wind power, micro-turbines, etc. ABB is still a major sub-supplier of electrical power generators, up to 70 MW mainly for geared gas-turbines; but partly also for standby & mobile “gen-sets”, for rural electrification and for remote power in various partnerships. ABB Denmark commenced, already in the 1970’s, its sales of constant-speed, wind power generators and other electrical components, like low-voltage apparatus and small power transformers, as well as automation technology products, today’s IndustrialIT, on a continuously growing scale. EPE 2003 - Toulouse ISBN : 90-75815-07-7 P.23PDF Image | Power Electronics and Wind Power
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