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| Number | Title | Issue Date |
| 8447541 | Energy usage monitoring with remote display and automatic detection of appliance including graphical user interface Devices and methods for identifying an electrical device, and its state, in a network of electrical devices are disclosed. An energy monitoring device is programmed to identify an electrical device coupled to a power supply, and a state of the electrical device, fro... | 05/21/2013 |
| 8447542 | Method and device for measuring the electric power of a universal electric motor powered by sinusoidal alternating voltage A method measures the electric power of a universal electric motor (4) connected to an electric power mains (6) by a Triac (7) and supplied by sinusoidal alternating voltage (V(t)). The method determines a first (ton) and a second (toff) instant... | 05/21/2013 |
| 8447543 | Electric vehicle simulator and analyzer (EVSA) for electric vehicle supply equipment Embodiments pertain to devices and systems having simulator circuitry, particularly to simulator circuitry configured to simulate an electric vehicle and test an electric vehicle charger. A test unit is configured to simulate a GFI current via modulator and to simul... | 05/21/2013 |
| 8428895 | System and method for power system parameter measurement A system and method of testing a power system component is disclosed. The system and method comprises coupling a test set to the power system component and stimulating the power system component with a frequency sweep signal. The method also comprises capturing a re... | 04/23/2013 |
| 8412475 | Pseudorandom binary discrete interval noise signal generation and injection on to the electric power grid A synchronized pseudorandom sequence injector is provided for injecting a plurality of pseudorandom signals at selected locations in a power system having a plurality of locations forming a transmission and distribution grid. A synchronization pulse generator genera... | 04/02/2013 |
| 8401807 | 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) being instrumented with elements for energy consu... | 03/19/2013 |
| 8386198 | Real-time power line rating Real-time power line rating may be provided. First, sensor data may be received corresponding to a conductor of a power line. The sensor data may provide real-time weather conditions for the conductor's environment. The sensor data may be received from a sensor devi... | 02/26/2013 |
| 8359173 | System and methods for dynamic power estimation for a digital circuit A method for dynamic timing-dependent power estimation for a digital circuit having coupled interconnects and at least two gates. In one embodiment, the method includes the steps of capturing information on relative switching activities and timing dependence for the... | 01/22/2013 |
| 8340931 | 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 determined change values from each location to determine relative differen... | 12/25/2012 |
| 8321162 | Minimizing circulating current using time-aligned data A power system may comprise two or more transformers operating in parallel. A voltage differential may exist between the transformers, which may create a circulating current in the power system. The system voltage of the power system may be modified by performing a ... | 11/27/2012 |
| 8321163 | Monitoring power-related parameters in a power distribution unit A power distribution unit (PDU) disposable in an electrical equipment rack. The PDU has a housing, a power input penetrating the housing, outlets in the housing, a processor disposed in the housing, voltage and current sensors, and a voltage calculation procedure co... | 11/27/2012 |
| 8311753 | Method and apparatus for measuring and monitoring a power source A system and method for monitoring power sources, such as the batteries making up a bank of batteries, is disclosed. There is provided a plurality of addressable sensors each adapted to communicate with one of the power sources, and to provide information concerning... | 11/13/2012 |
| 8301404 | System and method for energy monitoring and management using a backplane An energy monitoring and management system and method are provided herein. The system and method centralize load metering by utilizing at least one sensor for observing load characteristics (e.g., Volts, Amperes, Watts, active energy . . . ) communicatively coupled ... | 10/30/2012 |
| 8290727 | System and method for providing power distribution system information A system, method and computer program product for processing utility data of a power grid is provided. In one embodiment, the system includes a datamart comprised of a plurality of physical databases storing utility data, a plurality of applications comprising an au... | 10/16/2012 |
| 8285500 | System and method for providing power distribution system information A system, method and computer program product for processing utility data of a power grid is provided. In one embodiment, the system includes a datamart comprised of a plurality of physical databases storing utility data, a plurality of applications comprising an au... | 10/09/2012 |
| 8280656 | System and method for providing power distribution system information A system, method and computer program product for processing utility data of a power grid is provided. In one embodiment, the system includes a datamart comprised of a plurality of physical databases storing utility data, a plurality of applications comprising an au... | 10/02/2012 |
| 8280655 | Digital power monitoring circuit and system A digital power monitoring circuit for monitoring power through an output inductor of a switching power supply in accordance with an embodiment of the present application includes a first analog to digital converter receiving a current sense signal indicative of the... | 10/02/2012 |
| 8275560 | Power measurement techniques of a system-on-chip (SOC) A method and system to enable power measurements of a system-on-chip in various modes. In one embodiment of the invention, the system-on-chip has full controllability of its logic and circuitry to facilitate configuration of the system-on-chip into a desired mode of... | 09/25/2012 |
| 8271215 | Method and practical use system for measuring the imbalance power in electrical installations, and the device for calibration thereof Method and practical use system for measuring the imbalance potential of an electrical installation or system comprising: i) acquiring instantaneous values of voltage (vA, vB, vC) and electrical intensity (iA,... | 09/18/2012 |
| 8244489 | Parametric multi-cycle averaging in an intelligent electronic device A method and apparatus measures electrical power usage and quality, while mitigating the effects of noise on measured signals or parameters. Specifically, a digital electrical power and energy meter employs a method in which a processor averages a parameter, such as... | 08/14/2012 |
| 8234086 | Detection of multiple powered devices connected to an inline power delivery channel Power sourcing equipment in a power over Ethernet (POE) system detects the connection of multiple powered devices to an inline power delivery channel to enable coherent power sharing among the devices. The PSE applies a standard detection signal (such as a detection... | 07/31/2012 |
| 8214165 | Apparatus, system, and method for precise early detection of AC power loss An apparatus, system, and method are disclosed for determining power source failure. A sampling module samples an alternating current power waveform as input to a power supply, at a sampling frequency which is a multiple of a predetermined frequency, to obtain a sam... | 07/03/2012 |
| 8190382 | Tool to analyze performance of power-beam photovoltaic receiver A tool to analyze the performance of a power-beam photovoltaic (PV) receiver is disclosed that includes a system and method for determining the output of a PV array under non-uniform, inconstant illumination. The system and method includes providing PV cells in a us... | 05/29/2012 |
| 8190381 | Intelligent electronic device with enhanced power quality monitoring and communications capabilities An intelligent electronic device IED has enhanced power quality and communications capabilities. The IED can perform energy analysis by waveform capture, detect transient on the front-end voltage input channels and provide revenue measurements. The IED splits and di... | 05/29/2012 |
| 8185330 | Automatic placement of measurement gates A method and apparatus is provided for setting time positions of measurement gates on a signal under test. Signal transition data is calculated by a processor for multiple signal transitions. Measurement gate start and end positions are set relative to the multiple ... | 05/22/2012 |
| 8185331 | Systems, methods and apparatus for indexing and predicting wind power output from virtual wind farms This disclosure describes systems, methods, and apparatus for predicting electrical power output from wind farms using statistical methods and measured wind speeds near boundaries of control volumes that encompass the wind turbines of interest. These systems, method... | 05/22/2012 |
| 8170817 | Method and device for determining the electrical loadability of overhead lines by means of temperature measurement In a method for determining the electrical loadability of power lines by temperature measurement, the temperature is measured with at least one sensor arranged on the power line and connected to a data processing system, wherein the time-dependent temperature of the... | 05/01/2012 |
| 8165832 | Wall plug power monitor A wall plug power monitor accurately measures power consumption of an appliance connected via a wall plug power monitor to AC power supplies of any of the various frequencies used around the world. A three milliohm current sense resistor minimizes power consumption ... | 04/24/2012 |
| 8155899 | 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 power is a value scaled from the rated DC source power computed with dat... | 04/10/2012 |
| 8155898 | Methods and apparatus for providing an extremely fast response in switching power converters A method is provided for accomplishing energy changes for a power converter to minimize an impact of a disturbance. The power converter includes energy storage and switches. The method comprises determining a nature of the disturbance, evaluating an amount of energy... | 04/10/2012 |
| 8150641 | System, device, and method for estimating possible power output of wind turbines A method for use in calculating a possible power output of a wind turbine. A series of performance data samples is acquired. Each performance data sample includes a meteorological condition and a power output indicated at a first time by one or more sensors associat... | 04/03/2012 |
| 8140278 | Intelligent fuse holder and circuit protection systems A circuit protection device includes: (i) a housing configured to hold a fuse; (ii) a first contact configured to connect the fuse to a power source; (iii) a second contact configured to connect the fuse to a load; and (iv) a sensing circuit placed in parallel with ... | 03/20/2012 |
| 8112235 | State and topology processor A State and Topology Processor (STP) may be communicatively coupled to one or more intelligent electronic devices (IEDs) communicatively coupled to a electrical power system to obtain one or more current measurements, voltage measurements, and dynamic topology data ... | 02/07/2012 |
| 8073643 | Semiconductor device A semiconductor device which includes a power switch connecting an internal power supply in which power is not shut down and an internal power supply in which power is shut down, and an internal voltage determining circuit for determining the voltage of the internal... | 12/06/2011 |
| 8065097 | Energy usage display unit An energy usage display unit for displaying energy usage of gas used for a water heater, water used for the water heater or electricity used in housing where the water heater is set. The energy usage display unit includes a clock section; a counting section for coun... | 11/22/2011 |
| 8050877 | Method for the determination of work/power A method for the determination of the electrical work in systems in which the voltage is switched. At preset times for this purpose current values are measured and interpolated between the measurement. With the help of the switched voltage a classification of each i... | 11/01/2011 |
| 8046180 | Model-based determination of power source replacement in wireless and other devices A model-based system and method for analyzing power source performance and optimizing operational costs are provided. Data from the power source (such as a battery) and/or a device associated with the power source is analyzed and processed to predict an operating li... | 10/25/2011 |
| 8041521 | Estimating power consumption of computing components configured in a computing system Methods, apparatus, and products as disclosed for estimating power consumption of computing components configured in a computing system that include: selecting, by a power estimation module, a plurality of calibration datasets from a calibration dataset repository, ... | 10/18/2011 |
| 8027795 | Load model generation for estimating a load value from a base load value in a system A method and system for establishing a load model (120) that utilizes a measurement from a second monitor (140) to estimate a value taken by a first monitor (150). A base load value associated with a load (160) is collected. The load mode... | 09/27/2011 |
| 8024138 | Power supply circuitry, collection and reporting of power supply parameter information In an example configuration, a power supply manager receives an output current value representing an amount of output current supplied by one or more power converter phases to a load. The power supply manager also receives a duty cycle value representing a duty cycl... | 09/20/2011 |
