Patent application number | Description | Published |
20090088988 | ARCING EVENT DETECTION - Methods for detecting electrical arcing on an electrical power system are provided, as well as systems and computer program products for carrying out the method. The method includes the steps of: a) obtaining data indicative of the temporal behavior of a signal which is indicative of a first periodic property of the electrical power system; and b) determining whether an arcing event is present on the electrical power system based on the shape observed in the first data. | 04-02-2009 |
20090116600 | PHASE DRIFT COMPENSATION FOR SAMPLED SIGNALS - Methods for processing a signal of interest in an electrical power system are provided, as well as systems and computer program products for carrying out the methods. The methods include obtaining a representative window of data points from the signal of interest; obtaining a window of interest containing data points from the signal of interest; and comparing a phase drift compensated window to the representative window, wherein the compensated window is calculated in accordance with the window of interest and a phase drift that is present in the window of interest relative to the representative window. | 05-07-2009 |
20090150686 | ELECTRICAL POWER SYSTEM EVENT DETECTION AND ANTICIPATION - A method for analyzing an electrical power system includes analyzing data representing a signal of interest of the power system, the data containing at least one power system event; and based on the analysis, associating the power system event with a root cause. A computer program product is also provided for carrying out the method. | 06-11-2009 |
20090210100 | PRIORITIZATION OF POWER SYSTEM RELATED DATA - A method for prioritizing events on an electrical power system, including: (a) acquiring at least one data portion representative of the behavior of the electrical power system, the at least one data portion containing at least one power system event; (b) assigning at least one rank value to the at least one data portion based on the type of power system event, the rank value indicative of a priority of the event; and (c) conducting subsequent operations on the at least one data portion in accordance with the at least one rank value. | 08-20-2009 |
20090327201 | IDENTIFICATION OF POWER SYSTEM EVENTS USING FUZZY LOGIC - A method for analyzing an electrical power system using fuzzy logic includes: (a) acquiring data representing a signal of interest of the power system; (b) analyzing the signal using at least one fuzzy logic rule; and (c) based on the analysis, detecting and classifying at least one power system event within the power system. | 12-31-2009 |
20100169029 | DIAGNOSIS AND POSITION IDENTIFICATION FOR REMOTE CAPACITOR BANKS - A method of evaluating one or more capacitor banks in an electrical power system includes: (a) acquiring data representing a signal of interest of the power system, where the data describes a plurality of power system events; and (b) based on one or more patterns contained in the data, identifying at least one of the power system events as being associated with capacitor operation. | 07-01-2010 |
20110137590 | ARCING EVENT DETECTION - A system for detecting electrical arcing on an electrical power system includes: a) a data acquisition unit that is electrically connected to an electrical power system, wherein the data acquisition unit is configured to monitor signals indicative of a first periodic property of the electrical power system, wherein the signal includes a normal load component; and b) a computing device operably connected to the data acquisition unit. The computing device is programmed to: i) obtain first data from the data acquisition unit indicative of the temporal behavior of the first signal; ii) remove the normal load component from the first data; and iii) determine that an arcing event is present on the electrical power system when the at least one burst within the first data presents a generally sinusoidal shape which includes generally flat regions which are present where the generally sinusoidal shape crosses over a zero-magnitude line. | 06-09-2011 |
20130151461 | IDENTIFICATION OF POWER SYSTEM EVENTS USING FUZZY LOGIC - A method for analyzing an electrical power system using fuzzy logic includes: (a) acquiring data representing a signal of interest of the power system; (b) analyzing the signal using at least one fuzzy logic rule; and (c) based on the analysis, detecting and classifying at least one power system event within the power system. | 06-13-2013 |