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US20140172329 SYSTEM AND METHOD FOR WIND GENERATION FORECASTING  
Systems and methods for managing electricity of an electrical supply grid electrically connected to a wind farm are disclosed. Some systems and methods may include identifying relationships among...
US20110160922 DECENTRALIZED SYSTEM AND ARCHITECTURE FOR REMOTE REAL TIME MONITORING OF POWER TRANSFORMERS, REACTORS, CIRCUIT BREAKERS, INSTRUMENT TRANSFORMERS, DISCONNECT SWITCHES AND SIMILAR HIGH VOLTAGE EQUIPMENT FOR POWER PLANTS AND ELECTRIC POWER SUBSTATIONS  
“DECENTRALIZED SYSTEM AND ARCHITECTURE FOR REMOTE REAL TIME MONITORING OF POWER TRANSFORMERS, REACTORS, CIRCUIT BREAKERS, INSTRUMENT TRANSFORMERS, DISCONNECT SWITCHES AND SIMILAR HIGH VOLTAGE...
US20110270546 EFFICIENCY METER FOR PHOTOVOLTAIC POWER GENERATION SYSTEMS  
A portable instrument for displaying an efficiency metric for a photovoltaic power generation system based on an estimate of the source power available from the photovoltaic modules. The source...
US20150204922 Method for Predicting Wind Power Density  
Provided is a method for predicting a wind power density. More particularly, provided are a method for predicting a wind power density using a stepwise regression analysis technique capable of...
US20140100800 METHOD OF MONITORING A WIND TURBINE  
A method of real-time monitoring of the operation of a wind turbine in an operational region of theoretically constant power coefficient is disclosed. The method comprises measuring the electrical...
US20110098867 AUTOMATED LOAD ASSESSMENT DEVICE AND MEHTOD  
A device for automatically assessing the nature of an electrical load includes electrical transducers.
US20140088894 METHOD AND DEVICE FOR EXTRACTING SKELETON TOPOLOGY STRUCTURE OF ELECTRIC POWER GRID  
A system and method for extracting a skeleton topology structure for an electric power grid, the method comprising: receiving a description of a topology sub-structure corresponding with user's...
US20110224925 Altimeter  
In an altimeter which makes use of power generated by a photoelectric conversion means as a drive power force, it is possible to prevent the altimeter from falling into a state where the altimeter...
US20150066404 DETERMINING ENERGY CONSUMPTION IN A STRUCTURE  
Methods, apparatus, and systems are provided for measuring the supply of a consumable product/energy source, such as electrical power, to a facility over time and analyzing the measurements to...
US20140350871 METHOD TO ESTIMATE POWER DISSIPATION OF AN INVERTER  
A method to estimate power dissipation of an inverter configured to control electric energy to an electric machine. The method can estimate both conductive power losses and switched power losses...
US20120143537 METHOD OF CALCULATING AN ELECTRICAL OUTPUT OF A WIND POWER PLANT  
The invention relates to a method of calculating an electrical output of a wind power plant comprising a plurality of wind turbines. Instead of calculating the electrical output of the wind power...
US20140244188 FORECASTING OUTPUT POWER OF WIND TURBINE IN WIND FARM  
A method and apparatus for forecasting output power of wind turbine in a wind farm. The present invention provides a method for forecasting output power of a wind turbine in a wind farm,...
US20150066401 State Estimation of Power Systems Decomposed Into Two or More Subsystems  
A power system grid is decomposed into several parts and decomposed state estimation steps are executed separately, using Lagrangian relaxation and blockwise Gauss-Seidel solution. The achieved...
US20130197834 METHOD AND ARRANGEMENT IN CONNECTION WITH PHOTOVOLTAIC POWER GENERATOR COMPOSED OF SERIES-CONNECTED PHOTOVOLTAIC MODULES  
A method and an arrangement are provided in connection with a photovoltaic power generator composed of series-connected photovoltaic modules. The method includes determining a maximum power point...
US20110137591 ELECTRIC POWER GENERATION AMOUNT ESTIMATION DEVICE, ELECTRIC POWER GENERATION AMOUNT ESTIMATION SYSTEM, ELECTRIC POWER GENERATION AMOUNT ESTIMATION METHOD AND COMPUTER PROGRAM  
There is provided an electric power generation amount estimation device, including a solar power generation device identification portion that identifies a solar power generation device that...
US20150066403 LOSS CALCULATION METHOD AND LOSS CALCULATING DEVICE  
A first calculating unit calculates a load current of each distribution facility based on a sending voltage in a power source facility and load information on power consumption facilities in an...
US20120072140 Systems, methods, and devices for analyzing utility usage with load duration curves  
Systems, methods, and devices for regulating usage of at least one utility by a utility consuming system. One aspect of the present disclosure is directed to a method for regulating usage of at...
US20150066402 Power System State Estimation Using A Two-Level Solution  
A power system grid is decomposed into several parts and decomposed state estimation steps are executed separately, on each part, using coordinated feedback regarding a boundary state. The...
US20150088440 SOLAR POWER GENERATION MONITORING METHOD AND SOLAR POWER GENERATION MONITORING SYSTEM  
A method for monitoring solar power generation includes calculating a cable loss, calculating a maximum power point tracking loss, calculating an inverter loss, calculating a system output...
US20130116947 Method and System for Detecting Unbalance in Power Grids  
A method for detecting unbalance in a 3-phase voltage signal is disclosed. The method includes determining an unbalance indicator as a value of a square of an amplitude of a positive sequence of...
US20120116590 RACK-LEVEL MODULAR SERVER AND STORAGE FRAMEWORK  
A modular rack-level server and storage framework is disclosed. The modular rack system includes a plurality of chassis placed in one or more racks and a plurality of sleds placed in each chassis....
US20110301886 ABSORBED POWER MEASURING METHOD, LOCAL AVERAGE ABSORBED POWER MEASURING METHOD, LOCAL AVERAGE ABSORBED POWER CALCULATING APPARATUS, AND LOCAL AVERAGE ABSORBED POWER CALCULATING PROGRAM  
An object of the present invention is to provide a simple way of measuring the local average absorbed power of a radio device having a plurality of antennas. A local average absorbed power...
US20130304266 STATE ESTIMATION OF ELECTRICAL POWER NETWORKS USING SEMIDEFINITE RELAXATION  
A semidefinite (SDR) programming formulation for state estimation (SE) of nonlinear AC power systems is described. The techniques make use of convex semidefinite relaxation of the original problem...
US20150160273 METHOD AND PLANT FOR SIMULTANEOUS MONITORING OF EVENTS OF AN INDUSTRIAL PRODUCTION PLANT WHICH ARE ASSOCIATED WITH LOCATION AND INFLUENCE ENERGY CONSUMPTION  
Simultaneous monitoring of events of an industrial production plant associated with a location and influencing energy consumption, includes detecting current consumption of energy and assigning...
US20140172330 DETERMINING THE ENERGY YIELD LOSS OF A WIND TURBINE  
A method for determining an energy yield loss of a first wind turbine (1-49) of a wind farm (51) that includes a plurality of wind turbines (1-49). The first wind turbine (1-49) is operated in a...
US20110307199 METHOD OF RECOGNIZING AND ASSESSING SHADOWING EVENTS  
For recognizing shadowing events affecting a photovoltaic module, electric power produced by the module is recorded. For each position of the sun on a present day an expected value of the electric...
US20120323508 LOW VOLTAGE DETECTOR  
A low voltage detector (100) includes a power supply voltage monitor circuit (110) that produces a voltage VSP related to a first a power supply voltage, and a voltage generator (105), which...
US20130345998 ENERGY MANAGEMENT SYSTEM  
An energy management system has a configuration including: an air-conditioning schedule energy-saving rate calculating unit which, based on an air-conditioning schedule for the reference time and...
US20140200839 POWER CONSUMPTION AMOUNT ESTIMATING APPARATUS AND POWER CONSUMPTION AMOUNT ESTIMATING METHOD  
A power consumption amount estimating apparatus for estimating a power consumption amount of a resource allocated to multiple virtual machines operating on a physical machine, the estimation being...
US20140046610 METHOD AND DEVICE FOR DETERMINING THE POWER OUTPUT BY A PHOTOVOLTAIC INSTALLATION  
A method for improving the usability of photovoltaic installations (PV installations) by taking account of shading information of adjacent PV installations for forecasting the power output by a...
US20140012524 POWER GRID TOPOLOGY DISCOVERY VIA TIME CORRELATION OF PASSIVE MEASUREMENT EVENTS  
A wireless mesh network is configured to manage a power grid. Each node within the wireless mesh network is configured to detect and classify voltage fluctuations in power supplied by an upstream...
US20150051852 SYSTEMS AND METHODS FOR SWING ANGLE ESTIMATION IN AN ELECTRICAL POWER SYSTEM  
A method includes obtaining a voltage phasor, a current phasor and a mechanical rotor angle of a source end generator. A receiving end generator impedance and a line impedance between the source...
US20130268220 ESTABLISHING A POWER PROFILE FOR GENERATING ELECTRICAL RATINGS  
Establishing a power profile of power consuming components of computer system configurations for generating electrical ratings, beginning with a default, limited configuration of a computer system...
US20110082654 POWER GRID WITH COMPARISON OF DIFFERENCES IN REMOTE PHASOR CHANGES  
The invention compares geographically remote locations on a power grid by determining at each location the amount of change to phasor measurements for a period of time, and then comparing the...
US20150112615 METHOD AND APPARATUS FOR MONITORING ENERGY MANAGEMENT EFFICIENCY OF DATA CENTER  
An apparatus and method are disclosed for monitoring energy management efficiency of a data center. The apparatus includes an input unit, an energy management efficiency non-achievement rate...
US20120010832 MONITORING METHOD AND MONITORING DEVICE FOR AN ELECTROSTATIC COATING PLANT  
Exemplary monitoring methods and monitoring devices are disclosed, e.g., for an electrostatic coating plant which coats components with a coating agent that is electrically charged by means of a...
US20110161020 Detecting Power Quality Events in Power Distribution Networks  
Power quality (PQ) events in a waveform in a power distribution network are detected by sampling the waveform. For each sample, a normalized sample is determined by subtracting an undistorted...
US20100131216 Power curve of wind power plant for energy network  
The invention relates to a method of determining a desired power curve for a wind power plant for use in connection with the subsequent design and positioning of the wind power plant (307), where...
US20130046492 METHOD AND SYSTEM FOR FORECASTING WIND ENERGY  
A method for forecasting wind energy production is disclosed. The method includes collecting power data indicative of power output from a set of wind energy installations with a first wind energy...
US20150066400 Sizing And Tuning Methodology For Optimized Motion Control Components And Energy Efficiency  
Aspects of the present invention provide a tool for simulating a motion control system that simulates performance and energy for a given configuration. The simulation analysis considers a motion...
US20130191053 INTELLIGENT ELECTRONIC DEVICE WITH CONSTANT CALIBRATION CAPABILITIES FOR HIGH ACCURACY MEASUREMENTS  
An intelligent electronic device with constant calibration capabilities for high accuracy measurements and method thereof are provided.
US20120101751 Evaluation Method  
A method for determining a power reduction due to ageing of a photovoltaic module includes measuring a variable associated with a performance of the module in one or more time periods within a...
US20120022710 ENERGY CONSUMPTION MANAGEMENT SYSTEM AND ENERGY CONSUMPTION MANAGEMENT APPARATUS  
According to one embodiment, an energy consumption management system includes: a movement information creating device; a power consumption amount measuring device; an accumulating device; and a...
US20110282602 Computer-Implemented System And Method For Efficiently Performing Area-To-Point Conversion Of Satellite Imagery For Photovoltaic Power Generation Fleet Output Estimation  
A computer-implemented system and method for efficiently performing area-to-point conversion of satellite imagery for photovoltaic power generation fleet output estimation is provided. Satellite...
US20110172937 METHOD AND SYSTEM FOR ENERGY CONSUMPTION MONITORING IN AN ICT ENVIRONMENT  
A method for energy consumption monitoring in an ICT environment, wherein the ICT environment (1) includes a multitude of energy consuming components (2, 3), at least partly the components (2, 3)...
US20130289903 RESOURCE MANAGEMENT SYSTEM  
A collective setting part sets a collective usage permission period for lighting loads, and a separate setting part sets a separate usage permission period for the lighting loads. The relevance...
US20150142346 EARLY POWER FAILURE DETECTION CIRCUIT  
Early power failure (EPF) detection circuit applies a rectified, unfiltered periodic waveform, at the frequency of the mains supply voltage to a threshold detector. During each cycle of the...
US20090312967 PRODUCING A PHASOR REPRESENTATION OF AN ELECTRICAL ENTITY IN A MULTIPHASE AC ELECTRIC POWER SYSTEM  
A phasor representation of an electrical entity at a geographical location in a multiple phase AC electric power system is produced by receiving a synchronization signal from a remote source,...
US20140100799 SELECTIVE VOLTAGE BINNING LEAKAGE SCREEN  
Methods and structures for leakage screening are disclosed. A method includes sorting devices manufactured from the same device design into voltage bins corresponding to a respective supply...
US20110112779 POWER QUALITY METER AND METHOD OF WAVEFORM ANAYLSIS AND COMPRESSION  
A method for waveform analysis and compression includes determining harmonic components of a waveform, subtracting the harmonic components from the waveform, leaving a residual waveform, and...

Matches 1 - 50 out of 426 1 2 3 4 5 6 7 8 9 >