首页> 外国专利> METHOD FOR OPERATING A COMBINED GAS AND STEAM TURBINE SYSTEM, GAS AND STEAM TURBINE SYSTEM FOR CARRYING OUT SAID METHOD, AND CORRESPONDING CONTROL DEVICE

METHOD FOR OPERATING A COMBINED GAS AND STEAM TURBINE SYSTEM, GAS AND STEAM TURBINE SYSTEM FOR CARRYING OUT SAID METHOD, AND CORRESPONDING CONTROL DEVICE

机译:联合运行的燃气-蒸汽轮机系统的方法,实施该方法的燃气-蒸汽轮机系统及相应的控制装置

摘要

A method of operating a combined gas and steam turbine system is provided. The system includes a gas turbine, a waste heat steam generator with an evaporator heating area, and a steam turbine. Fluid is fed to the waste heat steam generator as feed water. A primary control loop controls a feed water flow rate. Taking into account heat stored in the evaporator heating area, a primary desired value for the feed water flow rate is determined based upon a desired overheating value characteristic of a temperature by which the fluid exceeds a boiling point as the fluid exits the evaporator heating area and based upon a heat flow parameter characteristic of a heat flow transfer from fuel gas to the fluid via the evaporator heating area. The desired overheating value is lowered from a first value to a second value in order to activate an instantaneous power reserve.
机译:提供了一种操作燃气和蒸汽涡轮机组合系统的方法。该系统包括燃气轮机,具有蒸发器加热区的废热蒸汽发生器和蒸汽轮机。流体作为给水送入废热蒸汽发生器。主控制回路控制给水流速。考虑到存储在蒸发器加热区域中的热量,基于流体在离开蒸发器加热区域时流体超过沸点的温度的期望过热度特性,确定给水流量的主要期望值。基于通过蒸发器加热区域从燃料气体到流体的热流传递的热流参数特性。期望的过热值从第一值降低到第二值,以便激活瞬时功率储备。

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