General Electric Company

Sumit Bose

Yan Liu

Luis Jose Garces

Honggang Wang

Jovan Z Bebic

Robert William Delmerico

Juan Manuel De Bedout

Lalit Keshav Mestha

Masoud Abbaszadeh

Weizhong Yan

Christof Martin Sihler

Chellappa Balan

Ralph Teichmann

James Patrick Lyons

Rajni Kant Burra

Danian Zheng

Alfredo Sebastian Achilles

Kathleen Ann O'Brien

Robert Roesner

Nicholas Wright Miller

Reigh Allen Walling

Wei Ren

Yan Pan

Kiruba Sivasubramaniam Haran

Shashishekara Sitharamarao Talya

Chaitanya Ashok Baone

Biju Nanukuttan

Ramu Sharat Chandra

Jing Wang

Olugbenga Moses Anubi

Zhihong Ye

Santosh Sambamoorthy Veda

Thomas Alexander Wilkins

Hanchao Liu

Saikat Ray Majumder

Robert P Grimley

Emad Ezzat Ahmed

Shantanu Som

Michael deRooij

Divya Kurthakoti Chandrashekhara

Annartia Giani

Ganesh Neogi

Shalu Asarikandy

Nagwa M Elkachouty

An environmental control system assembly for an aircraft is provided. The assembly includes: an environmental control system; a fuel cell assembly in electrical communication with the environmental control system for providing electrical power to the environmental control system; and a controller operably connected to the fuel cell assembly, the controller operable to modulate an amount of power generated by the fuel cell assembly and provided to the environmental control system based on load forecasting data from an ECS load forecasting module of the controller.

Environmental control system having a fuel cell assembly

A power generation system for an aircraft includes a first power source, a second power source, and a power dispatch module communicatively coupled with the first and second power sources. The power dispatch module includes a controller having one or more processors configured to perform a plurality of operations, including but not limited to receiving a plurality of loading data associated with the power generation system, predicting a future power demand due to future load changes using the loading data, determining first and second power setpoints for the first and second power sources, respectively, based on the future power demand due to the future load changes, and controlling first and second power outputs of the first and second power sources based on the first and second power setpoints such that the future power demand of the power generation system is shared by the first and second power sources.

Power dispatch control system for multiple power generation sources

A method of operating a fuel cell assembly for an aircraft is provided. The method includes: receiving flight load predictor data for a scheduled flight of the aircraft prior to initiation of the scheduled flight of the aircraft; and reconfiguring the fuel cell assembly in response to the received flight load predictor data prior to the initiation of the scheduled flight of the aircraft, wherein reconfiguring the fuel cell assembly comprises adding or removing a fuel cell module to or from the fuel cell assembly to increase or decrease a power capacity of the fuel cell assembly.

Method of operating a fuel cell assembly for an aircraft

A decentralized electrical power allocation system is provided. The system includes a power bus, electric power consumers, and at least two power source assemblies. Each power source assembly includes a power controller and a power source. Each power controller is configured to execute an adaptive droop control scheme so as to cause their respective power sources to output power to meet a power demand on the power bus applied by the power consumers. The power output of a given power source is controlled based at least in part on correlating a power feedback of the given power source with a droop function that represents an efficiency of the given power source to generate electrical power for a given power output. The droop functions are collaboratively defined so that one power source shares more output at lower power levels while another power source shares more output at higher power levels.

Decentralized electrical power allocation system

According to some embodiments, a plurality of heterogeneous data source nodes may each generate a series of current data source node values over time that represent a current operation of an electric power grid. A real-time threat detection computer, coupled to the plurality of heterogeneous data source nodes, may receive the series of current data source node values and generate a set of current feature vectors. The threat detection computer may then access an abnormal state detection model having at least one decision boundary created offline using at least one of normal and abnormal feature vectors. The abnormal state detection model may be executed, and a threat alert signal may be transmitted if appropriate based on the set of current feature vectors and the at least one decision boundary.

Generic framework to detect cyber threats in electric power grid

A method for generating electric load models that includes receiving a plurality of measurements representative of input provided by a power source to electric loads is provided. The method includes generating a plurality of combination of model loads and assigning a contribution factor to each model load in each combination. The method further includes computing a match index for each combination for each measurement. The match index is computed by comparing a predicted output of each combination with an actual output generated by the electric loads for each input represented by each measurement. Furthermore, the method includes computing a first likelihood index for each combination based on the match index for each combination for the plurality of measurements. The method also includes computing a second likelihood index for each contribution factor in each combination based on the match index for each combination.

Method and system for generating electric load models

A photovoltaic (PV) control system generates a power output rate control signal based on a monitored rate of change of collective power output generated via a plurality of PV subsystems and a desired collective output power change rate for the plurality of PV subsystems and communicates the power output rate control signal to the plurality of PV subsystems to control a rate of change of one or more operating parameters of individual PV subsystems in order to control a rate of change of collective output power of the plurality of solar PV subsystems.

System and method for controlling ramp rate of solar photovoltaic system

A generator protection device is provided. The generator protection device includes a safety factor estimation module configured to estimate a safety factor as a function of a terminal voltage (V) of a source-end generator, and a swing center voltage (SCV) between the source-end generator and a receiving-end generator. The system further includes a comparison module configured to compare the estimated safety factor with a defined safety threshold limit, and a decision module configured to trigger an alarm or a generator circuit breaker trip action or both, based on the comparison between the estimated safety factor and the defined safety threshold limit.

Method and system for power swing detection in a generator

A system, in one embodiment, includes a photovoltaic power converter. The photovoltaic power converter includes one or more photovoltaic arrays configured convert solar energy into a DC signal and two or more N-level converters coupled to a common DC bus (N being an integer greater than 2).

DC-to-AC power conversion system and method

A method of providing reactive power support is proposed. The method includes detecting at least one of a plurality of network parameters in a distributed solar power generation system. The generation system includes a plurality of photovoltaic modules coupled to a grid via inverters. The method further includes sensing a state of the photovoltaic modules coupled to the distributed solar power generation system and determining a reactive power measure based upon the sensed state and the detected network parameters. The reactive power measure is used to generate a reactive power command. The reactive power command is further used to compensate reactive power in the distributed solar power generation system.

Reactive power compensation in solar power system

A direct current (DC) power transmission system is described. The DC power transmission system includes a first plurality of series connected power collection systems and at least one superconducting DC conductor coupled to the plurality of series connected power collection systems and configured to transmit power generated by the plurality of power collection systems to a remote load.

Methods and systems for direct current power transmission

A power generation system having a wind turbine blade assembly, a generator mechanically coupled to the blade assembly, and a power converter coupled to the generator is provided. An energy storage device and a bidirectional converter coupling the energy storage device to the power converter are also provided in the system. An inertia controller is provided for generating a first transient signal to regulate active power from the wind turbine system when a power grid signal is outside of a respective signal range. The system further includes an energy storage controller for providing a second transient signal to the bidirectional converter to regulate a power to or from the energy storage device based upon the first transient signal, power generating system conditions or combinations thereof.

Multi-use energy storage for renewable sources

An air distribution system for use with a wind turbine. The wind turbine includes a nacelle that is coupled to a tower and a rotor that is rotatably coupled to the nacelle with a rotor shaft. The rotor includes at least one rotor blade that is coupled to a hub. The air distribution system includes a conduit that is defined within the rotor shaft. The conduit provides flow communication between the nacelle and the rotor. An air-flow control assembly is coupled in flow communication with the conduit. The air-flow control assembly is configured to selectively channel air from the nacelle to the rotor and from the nacelle to ambient air.

System and method of distributing air within a wind turbine

A method of power system dispatch control solves power system dispatch problems by integrating a larger variety of generation, load and storage assets, including without limitation, combined heat and power (CHP) units, renewable generation with forecasting, controllable loads, electric, thermal and water energy storage. The method employs a predictive algorithm to dynamically schedule different assets in order to achieve global optimization and maintain the system normal operation.

Hybrid robust predictive optimization method of power system dispatch

A system for controlling a microgrid includes microgrid assets and a tieline for coupling the microgrid to a bulk grid; and a tieline controller coupled to the tieline. At least one of the microgrid assets comprises a different type of asset than another one of the microgrid assets. The tieline controller is configured for providing tieline control signals to adjust active and reactive power in respective microgrid assets in response to commands from the bulk grid operating entity, microgrid system conditions, bulk grid conditions, or combinations thereof.

System and method for controlling microgrid

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Niskayuna, NY, United States of America

Sumit Bose