公开(公告)号：US20140069104A1

公开(公告)日：2014-03-13

申请号：US14024781

申请日：2013-09-12

Applicant: ALSTOM Technology Ltd

Inventor： Kevin Chan ,  Hongtao Li ,  Joerg Oesterheld

IPC: F02C9/16

CPC classification number: F02C9/16 ,  F02C9/00 ,  F02C9/28 ,  F05D2270/053 ,  F05D2270/061 ,  F05D2270/091 ,  H02J3/24

Abstract: The invention relates to a method for operating a thermal power plant, which includes a gas turbine and a generator driven directly by the gas turbine by means of a shaft and being connected to an electrical grid having a grid frequency (FG) via an electronic decoupling apparatus and a step-up transformer. A synthetic inertia response is achieved by said method includes the steps of: sensing said grid frequency (FG); detecting if in case of an excursion of said grid frequency (FG) additional inertial power is required or not; if inertial power is required, calculating the magnitude and duration of the additional inertial power; and releasing additional inertial power to said electrical grid in accordance with said calculations via said electronic decoupling apparatus.

Abstract translation: 本发明涉及一种用于操作火力发电厂的方法，其包括燃气轮机和通过轴直接由燃气涡轮驱动的发电机，并通过电子去耦连接到具有电网频率（FG）的电网 装置和升压变压器。 通过所述方法实现合成惯性响应，包括以下步骤：感测所述电网频率（FG）; 检测在所述电网频率（FG）的偏移的情况下是否需要额外的惯性功率; 如果需要惯性功率，则计算附加惯性功率的大小和持续时间; 并且根据经由所述电子去耦装置的所述计算，向所述电网释放额外的惯性功率。

公开(公告)号：US09316160B2

公开(公告)日：2016-04-19

申请号：US14024781

申请日：2013-09-12

Applicant: ALSTOM Technology Ltd

Inventor： Kevin Chan ,  Hongtao Li ,  Joerg Oesterheld

IPC: F02D29/06 ,  H02P9/04 ,  F02C9/16 ,  F02C9/00 ,  F02C9/28 ,  H02J3/24 ,  F03D9/00 ,  H02P11/00

CPC classification number: F02C9/16 ,  F02C9/00 ,  F02C9/28 ,  F05D2270/053 ,  F05D2270/061 ,  F05D2270/091 ,  H02J3/24

Abstract: The invention relates to a method for operating a thermal power plant, which includes a gas turbine and a generator driven directly by the gas turbine by means of a shaft and being connected to an electrical grid having a grid frequency (FG) via an electronic decoupling apparatus and a step-up transformer. A synthetic inertia response is achieved by said method includes the steps of: sensing said grid frequency (FG); detecting if in case of an excursion of said grid frequency (FG) additional inertial power is required or not; if inertial power is required, calculating the magnitude and duration of the additional inertial power; and releasing additional inertial power to said electrical grid in accordance with said calculations via said electronic decoupling apparatus.

Abstract translation: 本发明涉及一种用于操作火力发电厂的方法，其包括燃气轮机和通过轴直接由燃气涡轮驱动的发电机，并通过电子去耦连接到具有电网频率（FG）的电网 装置和升压变压器。 通过所述方法实现合成惯性响应，包括以下步骤：感测所述电网频率（FG）; 检测在所述电网频率（FG）的偏移的情况下是否需要额外的惯性功率; 如果需要惯性功率，则计算附加惯性功率的大小和持续时间; 并且根据经由所述电子去耦装置的所述计算，向所述电网释放额外的惯性功率。

公开(公告)号：US09181872B2

公开(公告)日：2015-11-10

申请号：US13653217

申请日：2012-10-16

Applicant: ALSTOM Technology Ltd

Inventor： Hongtao Li ,  Alexander Zagorskiy ,  Jürgen Hoffmann ,  Francois Droux ,  Christoph Ruchti

IPC: F01B21/04 ,  F02C6/00 ,  F02C3/34 ,  F02C6/18

CPC classification number: F02C3/34 ,  F02C6/18 ,  F05D2240/40 ,  F05D2260/61 ,  Y02C10/04 ,  Y02E20/14 ,  Y02E20/16

Abstract: A power plant includes a first gas turbine engine, a second gas turbine engine, a flue gas duct, a CO2 capture system for treating flue gases from the second gas turbine engine and an exhaust system. It additionally includes at least one among a direct connection between the first gas turbine engine and the exhaust system, and a damper for on-line regulating the flue gases flow through it, a direct connection between the first gas turbine engine and the CO2 capture system, and a damper for regulating the flue gases flow through it, a supply of fresh oxygen containing fluid for the second gas turbine engine.

Abstract translation: 发电厂包括第一燃气涡轮发动机，第二燃气涡轮发动机，烟道气管道，用于处理来自第二燃气涡轮发动机的废气的CO 2捕集系统和排气系统。 它还包括在第一燃气涡轮发动机和排气系统之间的直接连接中的至少一个和用于在线调节通过其的烟道气流动的阻尼器，第一燃气涡轮发动机和CO 2捕集系统之间的直接连接 ，以及用于调节烟道气流过其的阻尼器，为第二燃气涡轮发动机供应新鲜含氧流体。

公开(公告)号：US20150369125A1

公开(公告)日：2015-12-24

申请号：US14741893

申请日：2015-06-17

Applicant: ALSTOM Technology Ltd

Inventor： Wilhelm Reiter ,  Darrel Shayne Lilley ,  Hongtao Li

IPC: F02C3/30 ,  F01K23/10 ,  F01K21/04

CPC classification number: F02C3/305 ,  F01K13/02 ,  F01K21/042 ,  F01K23/10 ,  F01K23/101 ,  F02C1/04 ,  Y02E20/16

Abstract: The invention relates to a method for temporary increasing the power of a gas turbine, which is part of a combined-cycle power plant, wherein the exhaust gas of the gas turbine is used in a heat recovery steam generator to generate steam for a water/steam cycle including a steam turbine with a high pressure steam turbine, an intermediate pressure steam turbine and a low pressure steam turbine, whereby the method comprises the step of injecting steam from the water/steam cycle at a predetermined injection pressure into the gas turbine. The efficiency is improved by taking steam of a lower pressure than the predetermined injection pressure from the water/steam cycle, increasing the pressure of the steam taken from the water/steam cycle to the predetermined injection pressure by subjecting it in separate compressing means to a compression step, and injecting the compressed steam into the gas turbine.

Abstract translation: 本发明涉及一种临时增加作为联合循环发电厂的一部分的燃气轮机的功率的方法，其中燃气轮机的废气用于热回收蒸汽发生器以产生水/ 蒸汽循环包括具有高压汽轮机的汽轮机，中压蒸汽轮机和低压蒸汽轮机，由此该方法包括以预定的注射压力将蒸汽从水/蒸汽循环喷入燃气轮机中的步骤。 通过从水/蒸汽循环中抽取比预定的注射压力低的蒸汽来提高效率，通过使其以分开的压缩方式对其进行压缩，从而将从水/蒸汽循环获取的蒸汽的压力增加到预定的注射压力 压缩步骤，以及将压缩蒸汽注入到燃气轮机中。

公开(公告)号：US20130269346A1

公开(公告)日：2013-10-17

申请号：US13852485

申请日：2013-03-28

Applicant: ALSTOM Technology Ltd

Inventor： Hongtao Li ,  Francois Droux ,  Christoph Ruchti ,  Karl Reyser

IPC: F01K23/10

CPC classification number: F01K23/10 ,  F01K17/04 ,  F02C6/18 ,  Y02E20/16 ,  Y02E20/326

Abstract: A combined cycle power plant with a gas turbine, steam turbine, and first HRSG comprises a CO2 capture plant for the at least partial capture of CO2 from the exhaust gases from the gas turbine. It comprises in particular a second HRSG or boiler arranged to receive a portion of the exhaust gases and transfer its heat to steam and feedwater. Steam generated in the second HRSG or boiler is used for the operation of the CO2 capture plant and/or to operate a steam turbine that drives a generator and optionally a CO2 compressor. The power plant according to the invention allows for greater flexibility in power plant part load control and power plant efficiency. A method to operate the power plant is also claimed.

Abstract translation: 具有燃气轮机，蒸汽轮机和第一HRSG的联合循环发电厂包括用于从燃气轮机的废气中至少部分捕获CO 2的CO 2捕集设备。 其特别地包括第二HRSG或锅炉，其布置成接收废气的一部分并将其热量传递给蒸汽和给水。 在第二HRSG或锅炉中产生的蒸汽用于二氧化碳捕获设备的运行和/或操作驱动发电机和任选的二氧化碳压缩机的蒸汽轮机。 根据本发明的发电厂允许发电厂部分负载控制和发电厂效率更大的灵活性。 还声称操作发电厂的方法。

公开(公告)号：US20130118179A1

公开(公告)日：2013-05-16

申请号：US13739806

申请日：2013-01-11

Applicant: ALSTOM Technology Ltd

Inventor： Hongtao Li ,  Holger Nagel ,  Tjiptady Nugroho ,  Celine Mahieux

IPC: F02C6/18

CPC classification number: F02C6/18 ,  F01K23/105 ,  Y02E20/16 ,  Y02E20/326 ,  Y02E20/344

Abstract: A method is provided for operating a combined cycle power plant having at least one gas turbine, a heat recovery steam generator (HSRG), a steam turbine and a CO2 capture system. The method includes recirculating a first partial flow of flue gases from the HRSG. The method also includes capturing CO2 from a second partial flow of flue gases from the HRSG; and operating a supplementary firing to increase the net power output of the plant and to at least partly compensate the power consumption of the CO2 capture system. A combined cycle power plant is also provided. The plant includes at least one gas turbine, at least one heat recovery steam generator, at least one steam turbine at least one CO2 capture system, and flue gas recirculation. The plant also includes a low excess air supplementary firing.

Abstract translation: 提供了一种用于操作具有至少一个燃气轮机，热回收蒸汽发生器（HSRG），蒸汽轮机和CO 2捕集系统的联合循环发电厂的方法。 该方法包括再循环来自HRSG的第一部分烟道气流。 该方法还包括从来自HRSG的第二部分烟道气流捕获CO 2; 并进行补充燃烧以提高工厂的净功率输出，并至少部分地补偿二氧化碳捕集系统的功率消耗。 还提供联合循环发电厂。 该设备包括至少一个燃气轮机，至少一个热回收蒸汽发生器，至少一个蒸汽轮机至少一个CO 2捕集系统和烟道气再循环。 该工厂还包括低空余量的辅助燃烧。

公开(公告)号：US20130091845A1

公开(公告)日：2013-04-18

申请号：US13653217

申请日：2012-10-16

Applicant: ALSTOM TECHNOLOGY LTD

Inventor： Hongtao Li ,  Alexander Zagorskiy ,  Jürgen Hoffmann ,  Francois Droux ,  Christoph Ruchti

IPC: F02C6/00 ,  F01K23/10 ,  F02C7/057

CPC classification number: F02C3/34 ,  F02C6/18 ,  F05D2240/40 ,  F05D2260/61 ,  Y02C10/04 ,  Y02E20/14 ,  Y02E20/16

Abstract: A power plant includes a first gas turbine engine, a second gas turbine engine, a flue gas duct, a CO2 capture system for treating flue gases from the second gas turbine engine and an exhaust system. It additionally includes at least one among a direct connection between the first gas turbine engine and the exhaust system, and a damper for on-line regulating the flue gases flow through it, a direct connection between the first gas turbine engine and the CO2 capture system, and a damper for regulating the flue gases flow through it, a supply of fresh oxygen containing fluid for the second gas turbine engine.

Abstract translation: 发电厂包括第一燃气涡轮发动机，第二燃气涡轮发动机，烟道气管道，用于处理来自第二燃气涡轮发动机的废气的CO 2捕集系统和排气系统。 它还包括在第一燃气涡轮发动机和排气系统之间的直接连接中的至少一个和用于在线调节通过其的烟道气流动的阻尼器，第一燃气涡轮发动机和CO 2捕集系统之间的直接连接 ，以及用于调节烟道气流过其的阻尼器，为第二燃气涡轮发动机供应新鲜含氧流体。