Patent application number | Description | Published |
20130261822 | Power Factor - A method, an apparatus and an article of manufacture for improving power factor. The method includes collecting consumption data of at least one appliance, building a consumption profile for each of the at least one appliance based on the consumption data collected, reconstructing reactive power consumption of each of the at least one appliance based on the consumption profile for each of the at least one appliance, and computing a schedule for each of the at least one appliance in accordance the reactive power consumption of each of the at least one appliance to improve power factor while respecting at least one constraint. | 10-03-2013 |
20130261824 | Power Factor - A method for improving power factor includes collecting consumption data of at least one appliance, building a consumption profile for each of the at least one appliance based on the consumption data collected, reconstructing reactive power consumption of each of the at least one appliance based on the consumption profile for each of the at least one appliance, and computing a schedule for each of the at least one appliance in accordance the reactive power consumption of each of the at least one appliance to improve power factor while respecting at least one constraint. | 10-03-2013 |
20130297239 | Estimating Loss Rates of Links in Smart Grids - A method, apparatus and article of manufacture for estimating loss rates of links in a smart grid. The method includes identifying end-to-end passage rates from a source to each of multiple receiver and/or load meters in a smart grid, and estimating a loss in at least one link of the grid by identifying the sparsest solution of link loss rates that matches the end-to-end passage rates. Also, a system includes a memory, a processor coupled thereto, and software modules executing on the processor, including a monitoring module for monitoring power flow of receiver and/or load meters in a smart grid, a measurement collector module for collecting measurements to compute end-to-end passage rates from a source to each receiver and/or load meter, and a processing module for estimating a loss in a link of the grid by identifying the sparsest solution of link loss rates matching the end-to-end passage rates. | 11-07-2013 |
20130297241 | Estimating Loss Rates of Links in Smart Grids - A method for estimating loss rates of links in a smart grid includes identifying end-to-end passage rates from a source to each of multiple receiver and/or load meters in a smart grid, and estimating a loss in at least one link of the grid by identifying the sparsest solution of link loss rates that matches the end-to-end passage rates. Also, a system includes a memory, a processor coupled thereto, and software modules executing on the processor, including a monitoring module for monitoring power flow of receiver and/or load meters in a smart grid, a measurement collector module for collecting measurements to compute end-to-end passage rates from a source to each receiver and/or load meter, and a processing module for estimating a loss in a link of the grid by identifying the sparsest solution of link loss rates matching the end-to-end passage rates. | 11-07-2013 |
20140046603 | ESTIMATING LOSSES IN A SMART FLUID-DISTRIBUTION SYSTEM - A method and associated systems for estimating losses in a fluid-distribution system, in which the fluid-distribution system may represented as a binary tree from which is generated a set of linear or nonlinear equations that express fluid losses as functions of measurements of characteristics of fluid flowing through the fluid-distribution system. Operations performed upon these equations to minimize measurement errors yield solutions that, when bounded by conditions derived from known physical and historical characteristics of the fluid-distribution system, allow inference of accurate loss locations and rates in the fluid-distribution system, even when the losses have not been measured directly or when measurements related to these leak losses contain measurement errors. | 02-13-2014 |
20140114487 | ENFORCING FINE-GRAINED DEMAND MANAGEMENT IN SMART GRIDS - Methods and arrangements for enforcing demand management in electrical grids. Electrical power is provided from an electrical network to at least one substation, the electrical network including an electrical generation grid in communication with the at least one substation, the at least one substation comprising a power limiter. Electrical power is provided from the at least one substation to a plurality of locations, each location comprising a smart power demand manager which controls electrical power delivery to at least power-drawing item. There is detected, with respect to the electrical network, at least one discrepancy comprising at least one of: an unbalanced network load; an unscheduled network load; a change in network supply; and a change in network condition. In response to such detection, electrical power delivery is controlled via employing the power limiter of the at least one substation in collaboration with at least one smart power demand manager. | 04-24-2014 |
20140222375 | CONDITION-BASED MANAGEMENT OF POWER TRANSFORMERS - Methods and arrangements for managing implementation of a power transformer. There is determined at least one parameter currently relating to operation of a transformer, as well as a revenue value currently assigned to the transformer. There is determined a depreciation value currently assigned to the transformer. There is determined a power output for the transformer for a future time slot that increases total revenue with respect to a life cycle of the transformer, the power output being determined based on the at least one parameter, the revenue value, and the depreciation value. | 08-07-2014 |
20150149396 | NON-TECHNICAL LOSS DETECTION AND LOCALIZATION - Embodiments of the present invention provide a system, method, and computer program product to detect and localize non-technical losses in an energy distribution system. A computing device determines the energy consumption of a link and/or node that is associated with an energy grid. The computing device determines the mismatch between the determined energy consumption of the link and/or node and the predicted energy consumption of the link and/or node. The computing device also determines the location of unauthorized energy consumption within the energy that is associated with the mismatch. | 05-28-2015 |