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Shared Power Unit in Power Generating Plants that Depend on Environmental Conditions

IP.com Disclosure Number: IPCOM000211426D
Original Publication Date: 2011-Oct-05
Included in the Prior Art Database: 2011-Oct-05
Document File: 2 page(s) / 78K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

Power generating plants like e.g. wind turbines and photo voltaic power plants both have power units consisting of power electronic inverters, power switch gear and possibly a medium voltage transformer to allow produced energy to be delivered to the grid. The power units for each individual device are sized for rated power of each device. The price of the individual power units is considerable and much of the lifetime the load is only a fraction of the rated power. But both sources also depend on environmental conditions like wind and solar intensity that rarely peak at the same time.

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Shared Power Unit in Power Generating Plants that Depend on Environmental Conditions

Idea: Jan Poulsen, DK-Brande

Power generating plants like e.g. wind turbines and photo voltaic power plants both have power units consisting of power electronic inverters, power switch gear and possibly a medium voltage transformer to allow produced energy to be delivered to the grid. The power units for each individual device are sized for rated power of each device. The price of the individual power units is considerable and much of the lifetime the load is only a fraction of the rated power. But both sources also depend on environmental conditions like wind and solar intensity that rarely peak at the same time.

Therefore, a novel concept of sharing the power unit in e.g. a wind turbine is proposed. Such shared power units provide a connection point for other generation devices that depend on environmental conditions and hence it is only part time to be able to provide rated power. The power unit has the intelligence and the interface to control the generator units to realize load sharing and to restrict total generation to the rating of the power unit. The interface can be ideally a smart grid interface.

Combining the load balancing with fact that power generating plants like wind turbines and photo voltaic power plants depend on environmental conditions like wind and solar intensity that rarely peak at the same time allows for an optimization of the size of the power unit an...