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11.发明授权公开(公告)号：US11233402B2
公开(公告)日：2022-01-25
申请号：US16734914
申请日：2020-01-06
Applicant: General Electric Company
Inventor： Apoorva Anil Sohani , Karthikeyan Appuraj , Deepak Raj Sagi
Abstract: A method for controlling a wind farm electrical power system is presented. The wind farm electrical power system includes a controller and a plurality of wind turbines electrically connected to an electrical grid through a point of interconnection. Each wind turbine includes a voltage regulator. The method includes receiving, via the controller, one or more electrical signals associated with the point of interconnection for a frequency domain. Further, the method includes estimating, via an estimator of the controller, a voltage sensitivity of the electrical grid using the one or more electrical signals. Moreover, the method includes dynamically controlling a voltage of the wind farm electrical power system at the point of interconnection based on the voltage sensitivity.
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公开(公告)号：US10763674B2
公开(公告)日：2020-09-01
申请号：US15719923
申请日：2017-09-29
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Rajni Kant Burra , Deepak Raj Sagi
IPC: G05B11/01 , H02J3/38 , H02K1/22 , H02K1/12 , F03D9/25 , G05B15/02 , F03D7/02 , H02J3/46 , F03D7/04 , H02J3/18 , H02P9/00
Abstract: An electrical power system includes a system-level controller and a plurality of clusters of subsystems defining a stator power path and a converter power path for providing power to the power grid. The converter power path includes a partial power transformer. The system further includes a cluster transformer connecting each cluster to the power grid and a plurality of cluster-level controllers communicatively coupled with the system-level controller. Each of the clusters is communicatively coupled with one of the cluster-level controllers. Thus, the system-level controller regulates system-level active and/or reactive power based on required active or reactive power for the system, respectively, and compares the system-level active or reactive power with preferred values thereof. Further, the system-level controller receives feedback signal(s) from the cluster-level controllers, generates cluster-level power command(s) based on the comparison and the feedback signal(s), and sends the cluster-level power commands to the cluster-level controllers.
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公开(公告)号：US09709035B2
公开(公告)日：2017-07-18
申请号：US14844331
申请日：2015-09-03
Applicant: General Electric Company
CPC classification number: F03D7/048 , F03D7/0284 , Y02E10/723
Abstract: A method is provided. The method includes identifying a dispatch interval for dispatching power from a wind farm, determining an observation time interval and a control time interval in the dispatch interval, computing a farm power moving average of the power of the wind farm, computing a grid frequency moving average of a grid frequency, determining a farm power set point based on a predefined wind farm operating model using the farm power moving average and the grid frequency moving average, controlling one or more wind turbines in the wind farm during the control time interval based on the farm power set point to regulate a farm-level dispatch power.
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公开(公告)号：US20160061188A1
公开(公告)日：2016-03-03
申请号：US14844331
申请日：2015-09-03
Applicant: General Electric Company
CPC classification number: F03D7/048 , F03D7/0284 , Y02E10/723
Abstract: A method is provided. The method includes identifying a dispatch interval for dispatching power from a wind farm, determining an observation time interval and a control time interval in the dispatch interval, computing a farm power moving average of the power of the wind farm, computing a grid frequency moving average of a grid frequency, determining a farm power set point based on a predefined wind farm operating model using the farm power moving average and the grid frequency moving average, controlling one or more wind turbines in the wind farm during the control time interval based on the farm power set point to regulate a farm-level dispatch power.
Abstract translation: 提供了一种方法。 该方法包括识别从风力发电场调度功率的调度间隔，确定观测时间间隔和调度间隔中的控制时间间隔，计算风力发电场功率的农场功率移动平均值，计算电网频率移动平均值 基于使用农场动力平均值和电网频率移动平均值的预定义风电场运行模型来确定农场功率设定点，基于控制时间间隔控制风电场中的一个或多个风力涡轮机 农场动力设定点来规范农场一级调度力。
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公开(公告)号：US20150330365A1
公开(公告)日：2015-11-19
申请号：US14709505
申请日：2015-05-12
Applicant: General Electric Company
Inventor： Dipankar Deb , Akshay Krishnamurty Ambekar , Deepak Raj Sagi
CPC classification number: F03D7/048 , F03D9/11 , F03D9/257 , G05B13/021 , Y02E10/723
Abstract: A method for optimizing a hybrid wind system including a wind farm having a plurality of wind turbines and one or more energy storage units, is presented. The method includes acquiring actual wind power data associated with one or more dispatch windows. The method includes determining forecasted wind farm power estimates corresponding to the dispatch windows using a plurality of forecast schemes. The method includes computing difference values by comparing the forecasted wind farm power estimates to the actual wind power data. The method includes identifying a wind power forecast scheme based at least in part on the computed difference values and balancing a penalty to the grid with life consumption of the energy storage units while regulating the wind turbines and the energy storage units based at least in part on a subsequent forecasted wind farm power estimate generated using the identified wind power forecast scheme.
Abstract translation: 提出了一种用于优化包括具有多个风力涡轮机和一个或多个能量存储单元的风力发电场的混合风力系统的方法。 该方法包括获取与一个或多个调度窗口相关联的实际风力数据。 该方法包括使用多个预测方案来确定与调度窗口相对应的预测的风电场功率估计。 该方法包括通过将预测的风电场功率估计与实际风力数据进行比较来计算差值。 该方法包括至少部分地基于计算出的差值来识别风力发电预测方案，并且至少部分地基于调节风力涡轮机和能量存储单元来调节能量存储单元的寿命来平衡对电网的惩罚 使用确定的风力发电预测方案生成的随后预测的风电场功率估计。
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Patent Agency Ranking
公开(公告)号：US11619206B2
公开(公告)日：2023-04-04
申请号：US16309494
申请日：2017-06-21
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Kasi Viswanadha Raju Gadiraju , Deepak Aravind , Deepak Raj Sagi
Abstract: A method for controlling a power output of a power generating unit includes receiving at least two measurement data sets from a location of integration of a power generating unit to an electrical grid. Each measurement data set includes a plurality of electrical parameters. The method further includes generating a grid model of the electrical grid based on the at least two measurement data sets. The grid model is characterized by an equivalent grid voltage and an equivalent grid impedance. The method further includes computing a strength value of the electrical grid based on the grid model, using the at least two measurement data sets. The method also includes controlling the power output of a power generating unit based on the strength value of the electrical grid.
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公开(公告)号：US11467616B2
公开(公告)日：2022-10-11
申请号：US16677781
申请日：2019-11-08
Applicant: General Electric Company
Inventor： Alina Fatima Moosvi , Vaidhya Nath Venkitanarayanan , Irene Michelle Berry , Patrick Hammel Hart , Hullas Sehgal , Fernando Javier D'Amato , Charles Joseph Kosuth , Deepak Raj Sagi , Rajni Kant Burra , Megan Ann DeWitt , Enno Ubben
IPC: G05F1/66 , G05B19/042 , G06F1/26 , H02J3/28
Abstract: A method for controlling an energy generation and storage system using a multi-layer architecture is provided. The method includes determining, by one or more control devices, a power or energy generation for the energy generation and storage system at a first layer of the multi-layer architecture. The method includes determining, by the one or more control devices, a power or energy set point for the system at a second layer of the multi-layer architecture. The method includes controlling, by the one or more control devices, the energy generation and storage system based, at least in part, on the power or energy setpoint.
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18.发明申请公开(公告)号：US20210210959A1
公开(公告)日：2021-07-08
申请号：US16734914
申请日：2020-01-06
Applicant: General Electric Company
Inventor： Apoorva Anil Sohani , Karthikeyan Appuraj , Deepak Raj Sagi
Abstract: A method for controlling a wind farm electrical power system is presented. The wind farm electrical power system includes a controller and a plurality of wind turbines electrically connected to an electrical grid through a point of interconnection. Each wind turbine includes a voltage regulator. The method includes receiving, via the controller, one or more electrical signals associated with the point of interconnection for a frequency domain. Further, the method includes estimating, via an estimator of the controller, a voltage sensitivity of the electrical grid using the one or more electrical signals. Moreover, the method includes dynamically controlling a voltage of the wind farm electrical power system at the point of interconnection based on the voltage sensitivity.
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19.发明授权公开(公告)号：US10958200B1
公开(公告)日：2021-03-23
申请号：US16552062
申请日：2019-08-27
Applicant: General Electric Company
Inventor： Kasi Viswanadha Raju Gadiraju , Deepak Raj Sagi , Rajni Kant Burra
IPC: H02P9/10 , F03D17/00 , F03D7/02 , F03D7/04 , H02J3/38 , H02P9/00 , F03D9/11 , F03D1/00 , H02P101/15
Abstract: A method for operating a wind turbine power system that supplies real and reactive power to a grid includes operating a generator of the wind turbine power system up to a first speed limit. The method also includes monitoring a wind speed at the wind turbine power system. When the wind speed drops below a predetermined threshold, the method includes reducing the first speed limit of the generator to a reduced speed limit of the generator. Further, the method includes operating the generator at the reduced speed limit for as long as the wind speed remains below the predetermined threshold so as to optimize a tip-speed-ratio of the wind turbine power system during low wind speeds, thereby increasing power production of the wind turbine power system at low wind speeds.
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公开(公告)号：US20200328611A1
公开(公告)日：2020-10-15
申请号：US16379933
申请日：2019-04-10
Applicant: General Electric Company
Inventor： Deepak Raj Sagi , Kasi Viswanadha Raju Gadiraju , Deepak Aravind , Vaidhya Nath Venkitanarayanan
IPC: H02J13/00 , H02J3/38 , G05B19/042
Abstract: A method for estimating grid strength of a power grid connected to a renewable energy farm having a plurality of renewable energy power systems includes measuring, at least, a voltage, an active power, and a reactive power at a point of interconnection of the renewable energy farm to the power grid. The method also includes determining a sensitivity of the voltage to at least one of the active power or the reactive power at the point of interconnection. Further, the method includes determining the grid strength of the power grid as a function of the sensitivity of the voltage to at least one of the active power or the reactive power at the point of interconnection. In addition, the method includes dynamically determining at least one of an active power command or a reactive power command for the renewable energy farm at the point of interconnection based on the grid strength. Moreover, the method includes distributing at least one of the active power command or the reactive power command to individual controllers of the plurality of renewable energy power systems and a farm-level controller of the renewable energy farm.
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