894 results about "Electric power distribution" patented technology

A power distribution system/method implementing Internet based access to hybrid home automation networks is disclosed. The system utilizes a smart gateway power controller (SGPC) configured for single/multi-gang wallplate installation to selectively switch an AC power source to a load device under switched control and/or local/remote network commands that may be routed through a variety of network interfaces and protocols present within a home or other structure-local communications network. SGPC configurations may be nested within a home automation network to permit separation of control for load devices within a common home automation environment. Present invention methods may include routing protocols between disparate home automation networks as well as remote access protocols that permit control of disparate home automation networks via the Internet using a wide variety of remote access interfaces including mobile devices, tablet computers, laptops, desktop computers, and the like.

A method and system is provided for optimizing the performance of a power generation and distribution system by forecasting very short term load forecasts through the use of historical load data, demand patterns and short term load forecasts.

The present invention discloses a hybrid power line/wireless appliance automation system for interfacing between at least one electric power distribution circuit and at least one electronic device, a power line communication device, and a power monitoring method using the same. Each power line communication device can be communicatively interconnected via power line communication and/or wireless communication. A threshold value of each power line communication device is dynamically adjusted by a host device via wired or wireless connection, so as to determine whether to continuously supply or turn off power to an electronic device coupled to the power line communication device. The present invention may be implemented/integrated to existing household electric power network without the need for additional physical data network infrastructure/lines, therefore is suitable to be applied in an intelligent home management system.

A system and method for determining the relative phase of each of a plurality of load meters connected to a three-phase power distribution system. The system includes a gateway that communicates information to and from each of the individual load meters. The gateway generates a timing pulse that is received by each of the load meters. Based upon the delay from the receipt of the timing pulse to the next zero crossing of the single phase power supply received by the meter, the utility can determine the phase of the individual meter. The system can include a feeder meter connected to each phase of the electrical supply system to determine the energy consumption for each of the meters connected to a specific phase. The utility can compare the energy consumption information from the feeder meter to all of the load meters connected to the same phase to determine whether any energy theft is occurring.

A system, computer program product and method to provide information related to a power distribution system based on information provided by a plurality of network elements electrically connected to a plurality of power lines of the power distribution system at a plurality of locations is provided. In one embodiment, the method comprises receiving a notification from a group of network elements that have detected a voltage signature indicating an imminent power outage, determining location information of the power outage, outputting the location information of the power outage, receiving a live notification from a first network element of the group of network elements indicating a first power restoration at a location of the first network element, determining location information of the first power restoration, and outputting the location information of the first power restoration.

An electric power load management system and method that uses a multiplicity of remote power supplies in a controlled manner such that the aggregate system has the capacity to offset critical power company peak electric demand periods thereby preventing severe and detrimental power shortages and interruptions.

net-metering in a power distribution system that includes a DRG system that is capable of providing power to a local load, an electric utility, and one or more batteries for storage, where net-metering is carried out iteratively during operation of the power distribution system and includes: creating, by a decision control engine, a local load and generation profile for a predefined period of time; deciding, by the decision control engine in accordance with revenue optimizing decision criteria and in dependence upon the local load and generation profile, present and projected utility power purchase prices, and a present state of charge of the batteries, whether to sell or store locally generated power; providing locally generated power to the electric utility if the decision control engine decides to sell locally generated power; and charging batteries with locally generated power if the decision control engine decides to store locally generated power.

A system, device, and method of providing information for a power distribution system is provided. In one embodiment, a method of using a device that receives power from the low voltage power of the power distribution system and experiences a power loss during a local power outage may perform the processes of monitoring a voltage of the low voltage power line, detecting a voltage reduction below a threshold voltage for a predetermined time period, storing information of the voltage reduction in a non-volatile memory prior to the power outage, and transmitting a notification to a remote computer system prior to the outage. The monitoring may comprise making a plurality of measurements of the voltage during a time interval and averaging the plurality of voltage measurements. In addition, the method may include transmitting an alert message upon power up after the outage to indicate a power restoration local to the device.

A stabilized electric distribution system for use in a vehicle having electric assist. The system electrically couples an electric assist bus to an accessory load bus while protecting the first electrical bus from electric assist and regenerative braking induced voltage variations. An energy management controller selectively controls each of a electric motor/generator, a DC/DC converter, and an alternator to affect electric energy distribution within the system. Preferably, the electric energy distribution is controlled to maintain the first electrical bus voltage within a predefined voltage range.

A fault is located in a power distribution system having a line frequency. The power distribution system includes a plurality of phases, at least one feeder, and each feeder includes at least one segment. The fault is located by detecting a faulted phase from the plurality of phases of the power distribution system. A measurement signal having a measurement frequency is injected into the detected faulted phase, the measurement frequency being a different frequency than the line frequency. The fault location is determined for a selected segment based on at least one measured residual current corresponding to the injected signal and a predetermined relative impedance of the power distribution system.

The instant invention relates to a mobile intelligent metering and charging system for charging uniquely identifiable chargable vehicle destinations (V) and method for employing the same. The system includes at least a power distribution system limb and a power consumption control and recordation limb. A vehicle system meter and at least one programmable command and control system identify unique vehicles, batteries, user accounts or other predetermined locations for charging and accounting purposes. Both the at least one programmable command and control system and the vehicle system meter are in communication with both the power distribution system limb and the power consumption control and recordation limb, and the at least one programmable command and control system controls the transmission of power through the vehicle system meter according to a predetermined and programmable algorithm, resulting in charging of the uniquely identifiable chargable vehicle destination.

A plurality of end-user locations are served by a commercial utility grid. More than one and less than all of the end-user locations are themselves interconnected by a feeder, the feeder not metallically connected to the utility grid. The end-user locations each have a local AC bus that is not metallically connected to the utility grid or to the feeder, but that is linked by a coupler to both the utility grid and to the feeder. None of the local AC buses or the feeder is required to have the same phase or frequency as the utility grid. Locally generated electric power may be passed by means of the feeder to other end-user locations that are on the feeder. Each local AC bus has two or more inverters powering the bus.

A system and method for managing an electrical distribution system in a facility is disclosed. In one aspect, the method may include receiving at a computer system from a monitoring system data related to actual energy use of components of the electrical distribution system, receiving at the computer system a request for a modification to the electrical distribution system, using the computer system, providing a revised electrical distribution system design based on the request and the data related to actual energy use using a system optimization function for the electrical distribution system, modifying the electrical distribution system in accordance with the revised electrical distribution system design to provide a modified electrical distribution system in the facility, and receiving at the computer system from the monitoring system data related to actual energy use of components of the modified electrical distribution system.

The present invention provides a system and method for operating a power line communications system for communicating via an underground residential distribution power system. One embodiment of the present invention includes an aggregation point, which may be co-located with a point of presence, communicatively coupled to one or distribution points. The distribution points are communicatively coupled to one or more medium voltage interface devices. The medium voltage interface devices are communicatively coupled to one or more power line bridges via URD medium voltage power lines. The power line bridges may be co-located with a URD distribution transformer and provide communications to the user devices communicatively coupled to the LV power lines of the distribution transformer.

The present invention is directed to an electrical device configured to be disposed in an electrical distribution system between a source of electrical power and an electrical load. The electrical distribution system includes at least one line hot conductor, a line neutral conductor, and a line ground conductor. The line neutral conductor and the line ground conductor are connected to earth ground at a termination point in the electrical distribution system. The electrical load includes at least one load hot conductor, a load neutral conductor, and a load ground conductor. The device comprises a power supply coupled to the power input mechanism. The power supply comprises at least one DC voltage output terminal and a reference terminal coupled to the line ground termination element. A voltage parameter detection circuit is configured to take a first voltage reading from a first termination element of the plurality of line termination elements and a second voltage reading from a second termination element of the plurality of line termination elements to derive at least one voltage parameter therefrom. The first voltage reading and the second voltage reading are referenced to the reference terminal. The circuit interrupter is driven into the tripped state if the at least one voltage parameter does not meet a predetermined condition, the voltage parameter detection circuit being operational when the reference terminal is not at an earth ground potential.

A system and method distributes data and power in a robust manner for a large scale LED display. Master modules of the display are capable of receiving a data stream on any one of four data ports. The master modules extract the data for its module and an associated group of slave modules from a data stream received on one port and send the received data stream to three other master modules via the other three data ports. Unregulated D.C. power is distributed from one or more power hubs to the master modules which in turn distribute regulated D.C. power to their associated slave modules.

A network system and computer component device rack having an integrated AC power distribution system is provided. The device rack and power distribution system includes a device rack frame having a plurality of locations for receiving network system and computer component devices within. The plurality of locations stacks network system and computer component devices one over another in a generally vertical orientation. A pair of AC power sequencers are mounted on an inner side panel, and a pair of power strips is provided along a rear edge. A plurality of compound angle AC jumper cords are provided for connecting network system and computer component devices to a plurality of power outlet receptacles on the pair of power strips.

An electric power line communication system operates with an electric power distribution system to provide through premises power distribution lines highly reliable communication links among power line communication devices electrically coupled or located in proximity to the premises power distribution lines. Each power line communication device associated with a set of premises power distribution lines has an identification address. A master code identifies the power line communication devices as members of a system domain of power line communication devices associated with the set of premises power distribution lines. Association of the master code with the identification addresses renders the member power line communication devices capable of operation without unintended communication with power line communication devices associated with a separate, different set of premises power distribution lines.

The present invention is directed to a protection device that includes line terminals coupled to a power source disposed in an electric power distribution system. The protection device is configured to protect a portion of the power distribution system from at least one fault condition. The device includes a receptacle member that has includes a housing and a cover. The cover includes receptacle openings configured to accommodate plug contact blades. Receptacle contacts are disposed in the housing. The receptacle contacts are also coupled to the line terminals to thereby establish an electrical connection between the receptacle contacts and the line terminals. Each receptacle contact is in communication with a corresponding receptacle opening. A protective shutter mechanism is integrated into the housing. The protective shutter mechanism is movable from a closed position to an open position upon insertion of the plug contact blades. The protective shutter mechanism is substantially hermetically sealed in the closed position. The protective shutter mechanism is also not movable from the closed position to the open position upon insertion of an object into only one receptacle opening, such that the object is prevented from making contact with the corresponding receptacle contact.

A methodology and related system apparatus is provided for using and coordinating the use of information conveyed over communications to most efficiently and flexibly respond to abnormalities to reconfigure and restore service to end customers in commodity distribution systems in a manner to enhance the reconfigurability of the distribution system, e.g. circuit reconfiguration in an electrical power distribution system. Methodology is also provided to appropriately allocate system resources of the distribution system when so desired, e.g. to prevent the potential overloading of electrical power sources. In one illustrative arrangement, the methodology is characterized by resources at each node and communications of source allocation data or messages to other nodes to request and establish an appropriate allocation of system resources. In a preferred arrangement and especially useful for larger distribution systems, “teams” of nodes are defined in the distribution system having associated switching controls with the various teams communicating amongst each other to “negotiate” or work out the most efficient and expeditious reconfiguration of the system in response to fault conditions and other circuit abnormalities.

A method and system restores power in a power distribution network. The network includes a plurality of power sources, a plurality of loading zones, a plurality of switching devices interconnected between the plurality of power sources and the plurality of loading zones, and an intelligent electronic device associated with each of the plurality of switching devices to control the switching devices. A base network state is defined and a power restoration logic is created for the base network state. A simulation is run for the power restoration logic and then the power restoration logic is transmitted to a power restoration controller which thereafter monitors and controls the intelligent electronic devices.

The invention discloses a power demand side monitoring system and method. A cloud computing technology is used, power consumption information forms a large power information resource pool, the power load is accurately predicted, the energy-saving potential is accurately mined, and a powerful guarantee is provided for reasonable, ordered, high-efficiency and safe power utilization, so that the aim of continuously utilizing the power is fulfilled. The system comprises a user layer, a data layer, a service layer and a monitoring layer, wherein the user layer is used for dividing the energy-saving method of the whole distribution system according to the industry difference; the data layer is used for acquiring power user data of the user layer by employing an intelligent load control terminal; the service layer is used for processing the data acquired from the data layer by employing the cloud computing and big data technology; and the monitoring layer is connected to the cloud of the service layer and is used for monitoring a power load in real time, counting the power consumption, checking and managing the power service condition and checking the energy-saving potential, so that the service type of the energy-saving equipment is determined.

A system for operating a power line communication system is provided. One embodiment is comprised of a plurality of network elements, which may take the form of repeaters, bypass devices, backhaul devices, wireless backhaul devices, enhanced bypass devices, communication interface devices and others. In one embodiment, two groups of network elements in the same electrical distribution system are isolated except for a selected communication link.

A composite power quality indication generated from user weighted statistical contributions of selected system parameters provides an overall indication of power quality in an electric power distribution system. The user defined weightings are maintained over time by continually updating sensitivities that normalize the component contributions to the composite power quality indication. The current composite power quality indication is displayed in relation to its long-term mean and to dynamic thresholds determined as multiples of the standard deviation of the long-term mean.

The invention discloses a dual-layer optimization method for power distribution network expansion planning and light storage locating and sizing. The method comprises the steps of building an upper-layer optimization model for active power distribution network expansion planning: determining a target function and constraint conditions of the upper-layer model; building a lower-layer optimization model for light storage capacity configuration: determining a target function and constraint conditions of the lower-layer model; and solving the upper-layer model and the lower-layer model: executing an upper-layer model optimization method, a lower-layer model optimization method and a dual-layer optimization method. According to the method, the built dual-layer optimization models taking a distribution network enterprise and users as subjects and taking calculation of optimal economic cost as a target comprehensively analyze economic influence of light storage system access and power distribution network expansion planning on the distribution network enterprise and the users; a planning model taking annual cost expense as a target function can well assess the economy of a power distribution network; and the light storage system can be reasonably configured, so that the power purchase costs of the users are effectively reduced, the on-spot consumption of photovoltaic energy is increased, and the network loss of a power distribution system can be effectively reduced.

The present invention provides a mixed integer cone programming based intelligent distribution system synthetic voltage reactive power optimization method. The method comprises: inputting a distribution system structure and a parameter of a distribution system; establishing a time sequence optimization model of a distribution system synthetic voltage reactive power control problem considering various types of adjustment means; converting the established model into a mixed integer second-order cone model; solving the obtained mixed integer second-order cone model by using a mathematical solver capable of solving mixed integer second-order cone programming; and outputting a solution result. The method provided by the present invention greatly reduces solving difficulty and facilitates performing solution by using a solving tool, so that a complex mixed integer non-linear programming problem can be solved, cumbersome iteration and a large number of tests are avoided, and the calculation speed is greatly improved.

Embodiments of the present invention include control methods employed in multiphase distributed energy storage systems that are located behind utility meters typically located at, but not limited to, medium and large commercial and industrial locations. Some embodiments of the invention use networked multiphase distributed energy storage systems located at an electric load location or installed at interconnection points along the electric power distribution grid to provide a means for balancing the load created from an electric charging station, which are adapted to transfer power between one or more electric vehicles and the electric power grid.

A firearm may have a plurality of power-consuming accessories that can be attached to the weapon. In order to reduce the weight of these power-consuming accessories, as well as the proliferation of their batteries, the Weapon Accessory Power Distribution System provides a common power source to power the power-consuming accessories attached to the weapon. One or more powered rails are provided on the handguard, which encircles the barrel of the weapon, to provide a point of mechanical and electrical interconnection for the power-consuming accessories to provide quick-connect mounting and dismounting of the power-consuming accessory, absent the use of connectors with their tethering cables, which are susceptible to entanglement. The Weapon Accessory Control System is provided to enable the user to control the activation of a power-consuming accessory as well as enable communications between the user and the accessory and among power-consuming accessories.

The present invention relates to a system for controlling, measuring and monitoring the secondary electric power distribution grid with remote fraud and power theft detection, readings, power cuts-off, reconnection and client load control, besides continuous monitoring of the electric grid parameters, providing diagnostics on the status of the grid and public lighting from an assigned Command Central, located at the secondary bulbar of the distribution transformer, and Measuring Modules at clients installations.

This invention relates to one total function studio stage light and power distribution system, which comprises central monitor cabinet and at least one three-fold cabinet and is characterized by the following: in the output end and load end connect light adjust module and power distribution control module; one spot collection and control end are set inside cabinet and the modules status wires are connected to spot collection and control ends; cabinet spot collection and control end data status wires are connected to the central monitor machine and central spot collection and control end through communication bus.