Method and device for controlling the temperature of steam for a steam power plant
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United States of America Patent
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Nov 22, 2016
Grant Date -
Mar 22, 2012
app pub date -
Mar 23, 2010
filing date -
Mar 24, 2009
priority date (Note) -
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Abstract
A method for controlling the temperatures of steam for a steam power plant is provided. A state controller, in order to output a desired steam temperature as a controlled variable, feeds back several steam states in a superheater for superheating steam using a monitor, which calculates the steam states, and the desired steam temperature is forwarded to a further controller for controlling the temperature. In order to achieve a stable and accurate control of the steam temperature, it is proposed that the state controller be a linear quadratic controller.
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