Patent application number | Description | Published |
20080224670 | ELECTRICAL POWER GENERATION SYSTEM - An electrical power generation system and method for generating electrical power are provided. The electrical power generation system utilizes a master controller for controlling operation of devices coupled to an AC electrical grid and DC electrical grid based on parameter values associated with a renewable power generator. | 09-18-2008 |
20090062969 | Hybrid robust predictive optimization method of power system dispatch - 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. | 03-05-2009 |
20100057267 | System and method for controlling ramp rate of solar photovoltaic system - 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. | 03-04-2010 |
20100067271 | REACTIVE POWER COMPENSATION IN SOLAR POWER SYSTEM - 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. | 03-18-2010 |
20100141041 | DC-TO-AC POWER CONVERSION SYSTEM AND METHOD - 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). | 06-10-2010 |
20110074151 | MULTI-USE ENERGY STORAGE FOR RENEWABLE SOURCES - 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. | 03-31-2011 |
20110137481 | SYSTEM AND METEHOD FOR PROVIDING POWER GRID ENERGY FROM A BATTERY - A system for providing energy and other ancillary services to a power grid including a renewable energy source. One or more power converters are integrated with the renewable energy source. A battery-based energy storage system is also integrated with the renewable energy source. A control system including an algorithmic software operates to control at least one power converter together with the battery-based energy storage system to supply stored battery energy to the grid when the cost of extracting the stored battery energy supplied to the grid via the battery-based energy storage system is less than the market price paid for the stored energy supplied by the battery-based energy storage system. | 06-09-2011 |
20110142623 | SYSTEM AND METHOD OF DISTRIBUTING AIR WITHIN A WIND TURBINE - 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. | 06-16-2011 |
20120025535 | METHODS AND SYSTEMS FOR DIRECT CURRENT POWER TRANSMISSION - 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. | 02-02-2012 |
20140118864 | METHOD AND SYSTEM FOR POWER SWING DETECTION IN A GENERATOR - 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 | 05-01-2014 |