公开(公告)号：US10424928B2

公开(公告)日：2019-09-24

申请号：US15314286

申请日：2014-05-28

申请人： GE Energy Power Conversion Technology Ltd.

发明人： Hao Yu ,  David Smith

IPC分类号： G05D17/00 ,  H02J3/18 ,  G05B13/02 ,  H02J3/38 ,  H02P101/00 ,  H02P27/06

摘要： A system for regulating energy provided to an electricity grid from an energy source, the system includes a converter configured to receive the energy from the source. The converter is configured to dynamically predict real-time maximum reactive power capability as a function of at least one from the group including (i) a direct current link maximum voltage, (ii) an instantaneous grid network voltage, and (iii) a line current. The predicted maximum reactive power capability is configured for optimizing regulation of the energy.

公开(公告)号：US10329955B2

公开(公告)日：2019-06-25

申请号：US15007527

申请日：2016-01-27

申请人： Pratt & Whitney Canada Corp.

发明人： David Menheere ,  Andrew Marshall

IPC分类号： F01D25/20 ,  F02C7/36 ,  H02P29/20 ,  F01D19/00 ,  F02C7/32 ,  H02P101/00

摘要： An oil system of a turbine engine and a method for driving an oil pump of such oil system are disclosed. In various embodiments, the oil system comprises an oil pump for fluid communication with one or more lubrication loads of the turbine engine, a first source of motive power and a coupling device. The first source of motive power is drivingly engaged to the oil pump for driving the oil pump during a first mode of operation. The coupling device is configured to drivingly disengage a second source of motive power from the oil pump during the first mode of operation and drivingly engage the second source of motive power with the oil pump to drive the oil pump during a second mode of operation.

公开(公告)号：US10337348B2

公开(公告)日：2019-07-02

申请号：US15470271

申请日：2017-03-27

申请人： General Electric Company

发明人： Sreedhar Desabhatla ,  John Huey ,  Scott Szepek

IPC分类号： F01D15/10 ,  F01D21/00 ,  H02P9/10 ,  H02K7/18 ,  G05B15/02 ,  H02P9/00 ,  H02P101/00

摘要： The disclosure relates to optimization of gas turbine power plant response during power system transients. In certain embodiments, systems, methods, and apparatus can control a power generating system by using the reactive components of the current and the reactive components of the voltage and the magnitude of the voltage at the generator terminals of a gas turbine generator system. In one embodiment, a system can identify a power system fault based on at least three conditions occurring for a specified duration and at substantially the same time: (1) an increase in the reactive current, (2) a decrease in the magnitude of the voltage, and (3) an increase in the reactive power. In one embodiment, a power system can further detect a remote breaker open (RBO) condition, and distinguish a RBO condition from a power system fault condition.

公开(公告)号：US10205414B2

公开(公告)日：2019-02-12

申请号：US15163451

申请日：2016-05-24

申请人： General Electric Company

发明人： Sreedhar Desabhatla ,  Scott William Szepek ,  Alexis Sesmat ,  Maxime Buquet

IPC分类号： H02P9/04 ,  H02J3/00 ,  H02J3/24 ,  H02K7/18 ,  H02P101/00

摘要： A method may involve monitoring a first set of electrical properties associated with an electrical grid configured to couple to a generator and determining whether a transient event is present on the electrical grid based on the first set of electrical properties. The method may also involve determining a mechanical power present on a shaft of the generator based on a second set of electrical properties associated with the generator, the electrical grid, or both when the transient event is present and sending the mechanical power to a controller associated with a turbine configured to couple to the generator, wherein the controller is configured to adjust one or more operations of the turbine based on the mechanical power.

公开(公告)号：US11777426B2

公开(公告)日：2023-10-03

申请号：US17676526

申请日：2022-02-21

申请人： Schweitzer Engineering Laboratories, Inc.

发明人： Edmund O. Schweitzer, III ,  Gregary C. Zweigle ,  Scott M. Manson ,  Ellery A. Blood

IPC分类号： H02P9/04 ,  F02C9/26 ,  H02P9/10 ,  H02P9/42 ,  H02P101/00

CPC分类号： H02P9/04 ,  F02C9/263 ,  H02P9/10 ,  H02P9/42 ,  F05D2220/76 ,  F05D2270/52 ,  F05D2270/71 ,  H02P2101/00

摘要： A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets, perform post-processing actions on the energy packets to generate processed energy packets, and convert the processed energy packets into a fuel valve reference. Post-processing may include a calibration correction to remove measurement artifacts.

公开(公告)号：US09239342B2

公开(公告)日：2016-01-19

申请号：US14006736

申请日：2012-03-29

申请人： Wolfgang Jöckel ,  Timo Dietz ,  Thomas Gaertner ,  Helge Grasshoff

发明人： Wolfgang Jöckel ,  Timo Dietz ,  Thomas Gaertner ,  Helge Grasshoff

IPC分类号： G01R19/00 ,  G01R19/10 ,  H02M1/00 ,  G01R19/255 ,  G01R31/36 ,  G01R35/00 ,  H02J1/00 ,  H02P101/00 ,  G01R15/16 ,  H03K7/08 ,  G01R1/20 ,  G01R31/00

CPC分类号： G01R19/10 ,  G01R1/203 ,  G01R15/16 ,  G01R19/0092 ,  G01R19/255 ,  G01R31/006 ,  G01R31/3624 ,  G01R35/00 ,  H02J1/00 ,  H02M1/00 ,  H02P2101/00 ,  H03K7/08

摘要： A sensor arrangement for measuring an electric voltage (Uterm), wherein the potential point, at which the electric voltage relative to a defined electric potential, in particular relative to earth, is intended to be measured, is connected to a capacitor, to which a comparator unit is connected which ascertains whether a first defined threshold voltage (Uref) is present at the capacitor, wherein the sensor arrangement is configured such that it provides an output signal which is dependent on at least one charging process of the capacitor and includes at least the information of the charging time for charging the capacitor to the first defined threshold voltage.

摘要翻译： 一种用于测量电压（Uterm）的传感器装置，其中相对于所定义的电势（特别是相对于地球）的电压旨在被测量的电位与电容器连接，电容器 连接比较器单元，其确定在电容器处是否存在第一定义的阈值电压（Uref），其中传感器装置被配置为使得其提供取决于电容器的至少一个充电过程的输出信号，并且至少包括 用于将电容器充电到第一限定阈值电压的充电时间的信息。