Method and arrangement for improving the dynamic behavior of a coal-fired power plant at primary and / or secondary requirements of the electricity grid operator to the power delivery to the grid

摘要

A method for improving the dynamic behavior of a coal-fired power plant at primary and / or secondary requirements of the electricity grid operator to the power delivery to the grid, the power plant having a nominal power (RC) and operated with a furnace, comprising - at least one combustion chamber for the Combustion of the fuel, - at least two direct coal combustion systems having a direct firing system for the comminution of the fuel, at least one of these coal grinding plants having an additional indirect firing system with at least one silo and Zuteilorgane, characterized in that the coal dust of the combustion chamber of the indirect firing system is supplied indirectly via the at least one silo and the Zuteilorgane and the further (s) coal grinding plant (s) the coal dust of the combustion chamber via the direct firing system directly feeds that with an increase in the primary and / or secondary request ments of the electricity network operator to the electricity supplied to the grid, the quantity of coal dust indirectly supplied via the at least one silo and the metering organs, compared with the actual current output or