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公开(公告)号：US20200328705A1
公开(公告)日：2020-10-15
申请号：US16303712
申请日：2017-06-16
Applicant: General Electric Company
Inventor： Govardhan GANIREDDY , Amol Rajaram KOLWALKAR , Somakumar RAMACHANDRAPANICKER , Arvind Kumar TIWARI , Sharath Sridhar ARAMANEKOPPA , Subbarao TATIKONDA , Yashomani Y. KOLHATKAR
Abstract: A power generation system is disclosed. The power generation system includes an engine coupled to a DFIG and a PV power source to supply a solar electrical power to the DFIG (108). The power generation system also includes a controller configured to operate the engine at a first operating speed corresponding to a first determined efficiency of the engine for a first desired level of an engine power in a first operating condition; or operate the engine at a second operating speed corresponding to a desired level of the second electrical power to be absorbed by a rotor winding and a second desired level of the engine power in a second operating condition, wherein the determined first efficiency is substantially close to a first maximum achievable efficiency of the engine. Method of operating the power generation system is also disclosed.
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公开(公告)号：US20190009690A1
公开(公告)日：2019-01-10
申请号：US15643537
申请日：2017-07-07
Applicant: General Electric Company
Inventor： Ajith Kuttannair KUMAR , Govardhan GANIREDDY , Shahid ALI , Prashanth Manikumar CHENNAMSETTY
Abstract: A power system is disclosed. The power system includes a first power generating unit. The first power generating unit includes a first power converting subunit and a first control unit coupled to the first power converting subunit, where the first control unit is configured to regulate a voltage of the first power generating unit. The power system further includes a second power generating unit coupled to the first power generating unit and a load, where the second power generating unit includes a second power converting subunit and a second control unit coupled to the second power converting subunit, wherein the second control unit is configured to control a current of the second power generating unit to share a quantity of electrical output current flowing through the load among the first and second power generating units.
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公开(公告)号：US20180331643A1
公开(公告)日：2018-11-15
申请号：US15975888
申请日：2018-05-10
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Govardhan GANIREDDY , Saurabh SHUKLA , Robert Gregory WAGONER
CPC classification number: H02P9/007 , F03D7/0272 , F03D7/043 , F03D9/25 , F05B2260/821 , F05B2270/1033 , F05B2270/32 , F05B2270/404 , H02P9/008 , H02P2101/10 , H02P2101/15 , H02P2101/25
Abstract: A method for operating a power generation system is presented. The method includes estimating, by a controller, at least one of a required load and input power of the doubly-fed induction generator for a pre-determined future time duration. The method includes comparing, by the controller, the estimated at least one of the required load and the input power with a corresponding threshold value. Moreover, the method includes transitioning, by the controller, operation of the power generation system from a partial power conversion mode to a full power conversion mode by controlling switching of one or more of a plurality of switches if the estimated at least one of the required load and the input power is less than the corresponding threshold value, wherein the plurality of switches includes a first set of switches coupled to stator winding of the doubly-fed induction generator.
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公开(公告)号：US20150240784A1
公开(公告)日：2015-08-27
申请号：US14625108
申请日：2015-02-18
Applicant: General Electric Company
Inventor： Deepak Raj SAGI , Mark Edward CARDINAL , Avijit SAHA , Rajni Kant BURRA , Govardhan GANIREDDY
CPC classification number: F03D7/048 , F03D7/0284 , F03D9/10 , F03D9/11 , F03D9/257 , F05B2260/82 , F05B2270/335 , F05B2270/404 , G05B15/02 , G05B2219/2619 , H02J3/32 , H02J3/386 , Y02E10/723 , Y02E10/763 , Y02E10/766 , Y02E70/30
Abstract: A system for automatic generation control in a wind farm is provided. The system includes a wind farm controller for controlling the plurality of energy storage elements. The wind farm controller receives an automatic generation control set point from an independent system operator, generates a farm-level storage power set point for the wind farm based on the automatic generation control set point, generates individual storage power set points for the plurality of energy storage elements based on states of charge of the respective energy storage elements, and controls the plurality of energy storage elements based on the individual storage power set points for dispatching storage power to perform automatic generation control.
Abstract translation: 提供了一种用于风电场中的自动发电控制的系统。 该系统包括用于控制多个能量存储元件的风电场控制器。 风电场控制器从独立系统运营商接收自动发电控制设定点，根据自动发电控制设定点生成风电场的电场存储功率设定点，生成多个能量的各个存储功率设定点 基于各个能量存储元件的充电状态的存储元件，并且基于各个存储功率设定点来控制多个能量存储元件，用于调度存储电力以执行自动生成控制。
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公开(公告)号：US20150184642A1
公开(公告)日：2015-07-02
申请号：US14584275
申请日：2014-12-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Sumitha MOHAN , Minesh Ashok SHAH , Rajni Kant BURRA , Govardhan GANIREDDY , Akshay Krishnamurty AMBEKAR , Murali Mohan BAGGU DATA VENKATA SATYA , Allen Michael RITTER
Abstract: A system for commissioning a wind turbine is provided. The system includes a test wind turbine, one or more additional wind turbines coupled to the test wind turbine, and a control system. The control system includes a first control module for controlling the one or more additional wind turbines to act as a power source and provide power to the test wind turbine. The control system also includes a second control module for controlling the one or more additional wind turbines to act as a load for dissipating test power generated by the test wind turbine.
Abstract translation: 提供了一种用于调试风力涡轮机的系统。 该系统包括测试风力涡轮机，耦合到测试风力涡轮机的一个或多个附加风力涡轮机和控制系统。 控制系统包括第一控制模块，用于控制一个或多个额外的风力涡轮机用作电源并向测试风力涡轮机提供动力。 控制系统还包括第二控制模块，用于控制一个或多个额外的风力涡轮机作为用于耗散由测试风力涡轮机产生的测试功率的负载。
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Patent Agency Ranking
公开(公告)号：US20140145439A1
公开(公告)日：2014-05-29
申请号：US14073892
申请日：2013-11-07
Applicant: General Electric Company
Inventor： Rajni Kant BURRA , Govardhan GANIREDDY , Victor Robert ABATE , Keith Andrew LONGTIN , Herman Lucas Norbert WIEGMAN , Robert William DELMERICO
IPC: F03D7/02
CPC classification number: F03D7/0204 , F05B2260/845 , F05B2270/107 , F05B2270/321 , F05B2270/337 , Y02E10/723
Abstract: A yaw backup system is provided. The yaw backup system includes an energy storage medium for storing auxiliary power. The yaw backup system also includes a yaw controller for coordinating delivery of power from the energy storage medium to a yaw motor for controlling a yaw angle of a wind turbine during grid loss conditions. The yaw controller executes the steps of receiving wind direction signals over time from a sensor, altering a tolerance level of a wind turbine based on changes in the wind direction signals over time and controlling delivery of power to the yaw motor from the auxiliary power of the energy storage medium based on the tolerance level to control the yaw angle for reducing a load on the wind turbine induced by wind.
Abstract translation: 提供了一种偏航备用系统。 偏航备用系统包括用于存储辅助电力的能量存储介质。 偏航备用系统还包括偏航控制器，用于协调从能量存储介质到偏航马达的动力传递，用于在电网损失状况期间控制风力涡轮机的偏航角。 偏航控制器执行从传感器随时间接收风向信号的步骤，根据随时间改变风向信号的变化，改变风力涡轮机的公差水平，并且控制从偏航电机的辅助功率 基于公差水平的能量存储介质，以控制用于减小由风引起的风力涡轮机上的负载的偏航角。
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公开(公告)号：US20190052166A1
公开(公告)日：2019-02-14
申请号：US15675845
申请日：2017-08-14
Applicant: General Electric Company
Inventor： Shahid ALI , Ajith Kuttannair KUMAR , Govardhan GANIREDDY , Prashanth Manikumar CHENNAMSETTY
CPC classification number: H02M1/12 , H02M7/23 , H02M7/493 , H02M7/539 , H02M2001/0009 , H02M2001/0025
Abstract: A power system is presented. The power system includes a first converter including a first output terminal a first control unit coupled to the first converter, a second converter including a second output terminal, where the second converter is coupled in parallel to the first converter, and a second control unit coupled to the second converter. The second control unit is configured to measure a plurality of phase currents at the second output terminal, determine a harmonic current transmitted by the second converter based on single phase current of the plurality of measured phase currents, and change a time-period of at least one switching cycle of a carrier wave of the second converter based on the determined harmonic current to synchronize with a carrier wave of the first converter.
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8.发明申请公开(公告)号：US20190052089A1
公开(公告)日：2019-02-14
申请号：US16080253
申请日：2017-01-26
Applicant: General Electric Company
Inventor： Govardhan GANIREDDY , Arvind Kumar TIWARI , Yashomani Y KOLHATKAR , Somakumar RAMACHANDRAPANICKER , Rahul Radhakrishna PILLAI
Abstract: A power generation system (101) is disclosed. The power generation system (101) includes a variable speed engine (106) and a DFIG (108) coupled thereto. The DFIG (108) includes a generator (112), a rotor side converter (114), and a line side converter (116) electrically coupled to the generator (112). The rotor side converter (114) is configured to aid in operating the generator (112) as motor to crank the variable speed engine (106). The power generation system (101) further includes a PV power source (110) and/or an energy storage device (122) electrically coupled to a DC-link (118) between the rotor side converter (114) and the line side converter (116). A method of cranking the variable speed engine is also disclosed.
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公开(公告)号：US20160049792A1
公开(公告)日：2016-02-18
申请号：US14782397
申请日：2014-03-26
Applicant: General Electric Company
Inventor： Rajni Kant BURRA , Avijit SAHA , Venkatarao RYALI , Govardhan GANIREDDY , Akshay Krishnamurty AMBEKAR , Deepak Raj SAGI
CPC classification number: H02J3/386 , F03D7/048 , F03D9/257 , F05B2260/8211 , G05B19/0421 , G05B2219/1215 , G05B2219/2619 , H02J3/48 , H02J3/50 , H02J13/0062 , H02J13/0079 , H02J13/0086 , Y02E10/723 , Y02E10/763 , Y02E40/72 , Y02E60/7838 , Y04S10/123 , Y04S40/124
Abstract: A multi-farm wind power dispatch management system is provided which includes wind turbine dispatch controllers for controlling wind power dispatch of respective wind farm components and wind farm dispatch management systems for receiving respective wind farm component operating parameters and generating respective farm-level operating parameters. The system also includes group dispatch management systems for receiving the farm-level operating parameters and generating respective group level operating parameters. The system also includes a master dispatch management system for receiving the group-level operating parameters; computing a real time output power generated by the wind farm components; determining a difference between the real time output power and a committed output power; and generating reference commands, based on the difference, for controlling at least one of, the wind farm component operating parameters, the farm-level operating parameters, the group level operating parameters, or combinations thereof to reduce the difference and dispatch the committed output power.
Abstract translation: 提供了一种多农场风力发电调度管理系统，其包括用于控制各风电场组件的风力发电和风电场调度管理系统的风力发电调度控制器，用于接收相应的风电场组件的运行参数并产生相应的电场运行参数。 该系统还包括用于接收农场级操作参数并产生相应组级操作参数的组调度管理系统。 该系统还包括用于接收组级操作参数的主调度管理系统; 计算风电场组件产生的实时输出功率; 确定实时输出功率和承诺输出功率之间的差; 以及基于所述差异来生成用于控制所述风电场组件操作参数，所述电场操作参数，所述组电平操作参数或其组合中的至少一个的参考命令，以减少所述差异并且分派所提交的输出功率 。
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公开(公告)号：US20150184632A1
公开(公告)日：2015-07-02
申请号：US14575116
申请日：2014-12-18
Applicant: General Electric Company
Inventor： Deepak Raj SAGI , Avijit SAHA , Govardhan GANIREDDY , Mark Edward CARDINAL , Rajni Kant BURRA
CPC classification number: F03D7/048 , F03D7/028 , F03D9/11 , F05B2260/821 , F05B2270/335 , H02J3/386 , Y02E10/723 , Y02E10/763
Abstract: A method for controlling a wind farm including a plurality of wind turbines is provided. The method includes computing an error between a farm-level base point power and a measured wind farm power, generating an aggregated farm-level active power set point for the wind farm based on the error and a frequency response set point, generating aggregated turbine-level active power set points based on the aggregated farm-level active power set point, transmitting the aggregated turbine-level active power set points, determining aero power set points and storage power set points for the respective wind turbines and energy storage elements of the respective wind turbines from the aggregated turbine-level active power set points, and controlling the plurality of wind turbines for delivering aero power based on the respective aero power set points and controlling the energy storage elements to provide storage power based on the respective storage power set points.
Abstract translation: 提供一种用于控制包括多个风力涡轮机的风力发电场的方法。 该方法包括计算农场级基准点功率和测量的风电场功率之间的误差，基于误差产生用于风电场的聚集农场级有功功率设定点和频率响应设定点，生成聚合的涡轮机 - 基于聚合的农场级有功功率设定点，传输聚合的涡轮机级有功功率设定点，确定相应风力涡轮机的各个风力涡轮机和能量存储元件的空中功率设定点和存储功率设定点， 来自所述聚集的涡轮级有功功率设定点的风力涡轮机，以及基于相应的航空功率设定点控制所述多个风力涡轮机以传递空中功率，并且基于相应的存储功率设定点控制所述能量存储元件以提供存储功率 。
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