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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... |
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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... |
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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... |
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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... |
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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... |
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US20110098867 |
AUTOMATED LOAD ASSESSMENT DEVICE AND MEHTOD
A device for automatically assessing the nature of an electrical load includes electrical transducers. |
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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... |
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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... |
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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... |
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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... |
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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... |
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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,... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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.... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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. |
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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... |
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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... |
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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... |
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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)... |
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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... |
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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... |
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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,... |
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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... |
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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... |