Prime-mover dynamo plants – Turbogenerators
Reexamination Certificate
2007-07-31
2007-07-31
Gonzalez, Julio C. (Department: 2834)
Prime-mover dynamo plants
Turbogenerators
C290S04000F
Reexamination Certificate
active
11185183
ABSTRACT:
Provided is a distributed-power-generation system capable of maintaining an operation point and a method of controlling the same. The distributed-power-generation system comprises: a fuel cell producing current and high-temperature gas through an electric chemical reaction of hydrogen and oxygen; a turbine obtaining rotation power using heat produced by the fuel cell; a compressor supplying air to the fuel cell using the rotation power of the turbine; a motor/generator unit acting as a motor using a current supplied from a battery in a starting mode, and as a generator rotating by rotation power of a turbine and generating a current in a generating mode; and an inverter unit supplying a DC power produced by the fuel cell and an AC power produced by the motor/generator unit for a three-phase power system. The method of controlling the distributed-power-generation system comprises: sensing a rotation speed of a rotation axis of the motor/generator unit; comparing the sensed rotation speed and a predefined reference speed; and supplying a current to the motor/generator unit to produce a load in the opposite direction of rotation of the rotation axis or in the same direction.
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Sul Seung-ki
Yang Hyun-sup
Drinker Biddle & Reath LLP
Gonzalez Julio C.
Samsung Techwin Co. Ltd.
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