Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 8014964 | Electrical power and energy measurement method and apparatus A method, to decompose the total instantaneous power, into active and non-active components, using the voltages and currents at the metering point; and apparatus implementing the said method. The voltage and currents are transformed into Fourier components. The Four... | 09/06/2011 |
| 8010304 | Apparatus and method for measuring active and reactive powers A method for measuring active power of alternating current (AC) using a digital phase-locked loop (DPLL) includes the steps of (1) generating via the DPLL a pair of substantially mutually orthogonal sinusoid signals in response to an input voltage data signal, (2) m... | 08/30/2011 |
| 8005631 | System and method for identifying a muzzle blast using a multi-sensor total energy approach Systems and methods for locating the shooter of supersonic projectiles are described. The system uses at least five, preferably seven, spaced acoustic sensors. Sensor signals are detected for shockwaves and muzzle blast, wherein muzzle blast detection can be either ... | 08/23/2011 |
| 8000914 | Systems and methods for electromechanical oscillation monitoring Systems and methods for electromechanical oscillation monitoring are disclosed herein. In one embodiment, a method for monitoring electromechanical oscillation in a power system includes forming a power density spectrum in frequency domain based on phasor measuremen... | 08/16/2011 |
| 8000913 | 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... | 08/16/2011 |
| 8000911 | Automated hierarchical classification for utility systems with multiple sources A method for automatically determining how monitoring devices in an electrical system having a main source of energy and at least one alternative source of energy (e.g., another utility source, a generator, or UPS system) are connected together to form a hierarchy. ... | 08/16/2011 |
| 8000912 | Instrument transformer and apparatus for detecting an amount of power using the same Disclosed is an instrument transformer detecting an amount of power supplied to a load via a high voltage line, wherein the instrument transformer is integrally configured with a current level converter, a voltage level converter and a power amount calculating modul... | 08/16/2011 |
| 7983860 | Method and system for monitoring power consumption of a computer component A system (10) and method for monitoring power consumption of a computer system component, such as a central processing unit (CPU), of a desktop computer system. The component is supplied with supply power from a power supply unit (22) of the computer t... | 07/19/2011 |
| 7979220 | System and method for monitoring power damping compliance of a power generation unit A system and method for monitoring the power damping compliance of a power generation unit comprises a measurement unit that is configured to be coupled to a power generation unit to identify the voltage, current, and frequency values associated with power output th... | 07/12/2011 |
| 7970561 | Method to calculate energy efficiency of information technology equipment The present invention provides a METHOD TO CALCULATE AN ENERGY EFFICIENCY RATING for information technology equipment. This method specifically pertains to information technology equipment that doubles its capabilities in a predetermined timeframe according to Moore... | 06/28/2011 |
| 7970562 | System, method, and apparatus for monitoring power A system, method and apparatus for monitoring a processing system is disclosed. The method includes obtaining N parameter-value pairs that include a first parameter value and a second parameter value; obtaining, for each parameter-value pair, the product of the firs... | 06/28/2011 |
| 7970560 | Method and apparatus for measuring and monitoring a power source A system and method for monitoring a power source using a site controller (905) and first and second sensors. The system includes a first power source in communication with a second power source. The system further includes a first sensor in communication wit... | 06/28/2011 |
| 7970563 | Testing apparatus and method for signal strength of powerline networks A powerline signal test apparatus has a housing, a pair of prongs protruding from the housing, a powerline module coupled to the pair of prongs within an interior region of the housing. The powerline module is configured to process a first data signal in a first for... | 06/28/2011 |
| 7951498 | Method and apparatus for controlling an integrated fuel cell system A control algorithm for operating an integrated fuel cell system includes the following steps: determining whether a power output of a fuel cell is within a first predetermined range of an electrical load coupled to the fuel cell; lowering a reactant flow to the fue... | 05/31/2011 |
| 7949483 | Integration of intelligent motor with power management device A method and apparatus provide for reduced cost and complexity in managing an intelligent motor in an architecture in which information is transferred between a power management device and the intelligent motor. The information may be used by an embedded processor o... | 05/24/2011 |
| 7945401 | Distributed intelligent remote terminal units Multiple autonomous intelligent Remote Terminal Units (RTUs) are positioned on distribution lines in an electrical power grid. The intelligent RTUs perform analytics on power flowing through the distribution lines to provide real-time analysis of the power. The inte... | 05/17/2011 |
| 7933724 | Method of tracking the performance of an industrial appliance Method of tracking the performance of an industrial appliance (E), in which an estimate (We) of the quantity representing the electrical power consumed is calculated, in real-time, using the model (M), based on the values of the set (F) of operating param... | 04/26/2011 |
| 7930117 | Systems and methods for power swing and out-of-step detection using time stamped data A first intelligent electric device (IED) may be placed at a first location in an electrical power system and a second IED may be placed at a second location in the electrical power system. Voltage measurements may be received from the first and second IEDs. The mea... | 04/19/2011 |
| 7920976 | 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... | 04/05/2011 |
| 7908100 | Power consumption analyzing apparatus and power consumption analyzing method A power consumption analyzing apparatus has a clock gating cell detector configured to detect a clock gating cell which is not present in RTL data but present in a gate-level netlist, a test bench description generation unit configured to add a description concernin... | 03/15/2011 |
| 7904261 | Method and system for using phasor measurements in state estimation of power systems A method of state estimation is provided, including: (a) acquiring a plurality of positive sequence voltage and current phasor measurements; (b) designating a reference positive sequence voltage phasor measurement from the acquired phasor measurements; (c) correctin... | 03/08/2011 |
| 7899630 | Metering device with control functionality and method thereof A metering device of a power substation and method are provided for operating on a secondary analog waveform output by a transformer assembly receiving a primary waveform. The method includes stepping down the secondary waveform and generating a corresponding output... | 03/01/2011 |
