Research of Properties of Frequency Regulation based on the Flexible Extraction Technology
This paper introduces a new theory of frequency regulation,which is based on the Flexible Extraction Technology,where unit power changes after regulating the regenerating extraction.Due to the high parameters of the adjustable extraction steam,load responsiveness will be enhanced when the Flexible Extraction Technology is used for frequency regulation of coal-fired power units.In addition,throttle loss will reduce to a minimum as a result of the full open state of the main throttle valve in the whole region of sliding pressure operation.The economy of frequency regulation will turn out to be remarkably promoted.What's more,the temperature fluctuation of the Feed Water will occur.However,the outlet water temperature of the economizer will remain basically stable through utilizing the tremendous thermal energy storage of the economizer.The safety of frequency regulation will be significantly improved in this way.
flexible extraction technologyproperties of frequency regulationeconomizerthe use of thermal energy storage
NETL
NSTL
万方数据
维普
