公开(公告)号：US20140250913A1

公开(公告)日：2014-09-11

申请号：US14199506

申请日：2014-03-06

Applicant: ALSTOM Technology Ltd

Inventor： Hamid OLIA ,  Jan SCHLESIER ,  Michael BREITFELD ,  Philipp BRUNNER

IPC: F01K23/10

CPC classification number: F01K23/10 ,  F01K13/02 ,  F01K23/101 ,  F02C6/18 ,  F05D2220/76 ,  F05D2270/061 ,  Y02E20/14 ,  Y02E20/16

Abstract: Method for operating a combined-cycle power plant is provided. The plant includes at least a gas turbine and at least a steam power generation system. The plant activates at least one electric generator connectable to an electric grid, wherein the gas turbine includes a compressor. The steam power generation system includes a steam turbine, a heat recovery steam generator and a bypass line. The method is such that the gas turbine de-loads to a condition, where the compressor operates at its nominal speed. The method is such that the steam turbine de-loads in coordination with the de-load of the gas turbine, to a condition where the total load exported by the plant to the grid is substantially equal to zero, being both the gas turbine and the steam power generation system connected.

Abstract translation: 提供了一种操作联合循环发电厂的方法。 该设备至少包括燃气轮机和至少一个蒸汽发电系统。 该设备激活可连接到电网的至少一个发电机，其中燃气涡轮机包括压缩机。 蒸汽发电系统包括蒸汽轮机，热回收蒸汽发生器和旁路管路。 该方法使得燃气涡轮机卸载到压缩机以其标称速度运行的状态。 该方法使得蒸汽轮机与燃气轮机的卸载协调地脱载，其中由工厂输出到电网的总负载基本上等于零，这两者都是燃气轮机和 蒸汽发电系统连接。

公开(公告)号：US20140239638A1

公开(公告)日：2014-08-28

申请号：US14182390

申请日：2014-02-18

Applicant: ALSTOM Technology Ltd

Inventor： Jan SCHLESIER ,  Hamid OLIA ,  Martin SCHOENENBERGER

IPC: H02K7/18

CPC classification number: H02K7/1823 ,  F01K23/101 ,  H02K7/183 ,  Y02E20/16

Abstract: The disclosure refers to a method for providing a frequency response for a combined cycle power plant connected to an electric grid. The combined cycle power plant includes a gas turbine engine and a steam turbine engine. The steam turbine engine includes a boiler, a steam turbine, a pump, a condenser, a bypass for the steam turbine, a steam admission control valve. The steam turbine engine operates with the bypass closed or at least partly open to supply steam from the boiler to the condenser bypassing the steam turbine, and/or with the steam admission control valve at least partly open. The method comprises regulating the output load of the combined cycle power plant by regulating the steam admission control valve and/or by regulating the steam flow through the bypass in response to a frequency change of the electric grid. The output of the gas turbine can also be adjusted, such that steam generated by the boiler is sufficient to achieve the target load for the steam turbine.

Abstract translation: 本公开涉及一种用于为连接到电网的联合循环发电厂提供频率响应的方法。 联合循环发电厂包括燃气涡轮发动机和汽轮机。 蒸汽涡轮发动机包括锅炉，蒸汽轮机，泵，冷凝器，用于蒸汽轮机的旁路，蒸汽进入控制阀。 蒸汽涡轮发动机在旁路闭合或至少部分打开的情况下运行，以从锅炉向旁路蒸汽轮机的冷凝器和/或蒸汽进入控制阀提供至少部分打开的蒸汽。 该方法包括通过调节蒸汽进入控制阀和/或通过调节通过旁路的蒸汽流来响应于电网的频率变化来调节联合循环发电厂的输出负载。 也可以调节燃气轮机的输出，使得由锅炉产生的蒸汽足以实现蒸汽轮机的目标负荷。