公开(公告)号：US09309779B2

公开(公告)日：2016-04-12

申请号：US14224439

申请日：2014-03-25

Applicant: ALSTOM Technology Ltd

Inventor： Martin Toulemonde ,  Caroline Jaillot ,  Denis Rigot

IPC: F01D15/10 ,  F01D21/14

CPC classification number: F01D21/14 ,  F05D2220/31 ,  F05D2220/76 ,  F05D2270/021 ,  F05D2270/024 ,  F05D2270/061 ,  F05D2270/091 ,  F05D2270/16 ,  F05D2270/335

Abstract: The invention relates to a steam turbine governing system for maintaining synchronization between an electrical grid and an electric generator, driven by a steam turbine, after the occurrence of a grid short circuit at the electrical grid. The governing system includes a governor adapted to control an arrangement of valves for regulating the steam flow in the steam turbine and means for measuring the voltage drop at the output of the electric generator. The governing system further includes means for measuring the electric power drop at the output of the electric generator. The governor is adapted to initiate operation of the arrangement of valves of the steam turbine in response to a voltage drop exceeding a predetermined value and to an electric power drop exceeding a predetermined value.

Abstract translation: 本发明涉及一种蒸汽轮机调节系统，用于在电网发生电网短路之后，保持电网与由汽轮机驱动的发电机之间的同步。 控制系统包括调节器，其适于控制用于调节蒸汽涡轮机中的蒸汽流量的阀的布置，以及用于测量发电机输出端的电压降的装置。 控制系统还包括用于测量发电机输出端的功率下降的装置。 调速器适于响应于超过预定值的电压降和超过预定值的电功率降来启动蒸汽轮机的阀的布置的操作。

公开(公告)号：US20160194982A1

公开(公告)日：2016-07-07

申请号：US14967955

申请日：2015-12-14

Applicant: ALSTOM Technology Ltd

Inventor： Vincent Jourdain ,  Martin Toulemonde

IPC: F01K13/02 ,  F01D25/32

CPC classification number: F01K13/02 ,  F01D25/32 ,  F01K7/04 ,  F01K7/165 ,  F01K17/00

Abstract: The invention relates to a steam turbine having a plurality of stages comprising a plurality of points of admission connected to a plurality of admission lines, a feed line connected to the plurality of admission lines and at least one extraction line, extending from an intermediate stage of the steam turbine, for extracting steam from the steam turbine. The at least one capacity line fluidly connects an admission lines and at least one extraction line so as to bypass the steam turbine, and is further configured to increase a swallowing capacity of the steam turbine as measured from the feed line upstream of the capacity line compared to the plurality of points of admission.

Abstract translation: 本发明涉及一种蒸汽轮机，其具有多个级，其包括连接到多条入口管线的多个入口点，连接到多条入口管线的进料管线和至少一条提取管线，其从 蒸汽涡轮机，用于从蒸汽轮机提取蒸汽。 所述至少一个容量线流体地连接入口管线和至少一个提取管线以绕过所述蒸汽轮机，并且还被配置为增加从所述容量线上游的进料管线测量的所述蒸汽轮机的吞咽能力 到多个入场点。

公开(公告)号：US10001404B2

公开(公告)日：2018-06-19

申请号：US14807296

申请日：2015-07-23

Applicant: ALSTOM Technology Ltd

Inventor： Sébastien Picand ,  Martin Toulemonde ,  Boris Huart

IPC: G01H1/00 ,  F01D21/00 ,  F01D21/14 ,  G01H1/10 ,  F01D5/10

CPC classification number: G01H1/006 ,  F01D5/10 ,  F01D21/003 ,  F01D21/14 ,  F05D2220/31 ,  F05D2270/334 ,  G01H1/10

Abstract: A method for monitoring sub-synchronous torsional oscillations of a shaft line of a steam turbine includes measuring a rotational speed of the shaft line over a period of time and generating, from the measured rotational speed, a signal representative of the rotational speed over the period of time. The method further includes performing a spectrum analysis on the signal to determine, for at least one given frequency, an amplitude of variation of the rotational speed at the given frequency, comparing the amplitude with at least one predetermined amplitude threshold for the frequency, and generating an alert signal if the amplitude exceeds at least one predetermined amplitude threshold.