1954results about "Electric power measurement" patented technology

The invention generally concerns systems and methods for monitoring and controlling the power consumption of a power-consuming device. The system and method may connect to a power source and a power-consuming device, connecting the power-consuming device to the power source. The power usage of the power-consuming device may then be measured and monitored. This monitoring data may then be stored and optionally sent to a controlling device on a data network. The location of the power-consuming device may also be determined, recorded, and sent to a controlling device. The system may also control the power usage of the power-consuming device. In some cases, a remote server may connect multiple energy monitoring systems in order to gain additional efficiencies and foster a community-based social network.

A system and method manage delivery of energy from a distribution network to one or more sites. Each site has at least one device coupled to the distribution network. The at least one device controllably consumes energy. The system includes a node and a control system. The node is coupled to the at least one device for sensing and controlling energy delivered to the device. A control system is coupled to the node and distribution network for delivery to the node at least one characteristic of the distribution network. The node controls the supply of energy to the device as a function of the at least one characteristic.

Methods and systems are provided for controlling the charging of onboard energy storage systems of a plurality of plug-in vehicles using a remote command center. A system for directing the charging of a plurality of remotely located plug-in vehicles is provided. The system includes a communication system configured to transmit charging authorizations to charge each of the plurality of plug-in vehicles and to receive data related to power consumption from each of the plurality of plug-in vehicles. The system also includes a controller communicatively coupled to the communication system and configured to receive the data related to power consumption and to direct the charge authorizations based thereon. A database is also included in the system and is communicatively coupled to the controller, with the database configured to store the data related to power consumption.

An object is to provide a system for improving convenience for users, by which a portable electronic device or the like can be charged even in a place where utility power is not available. Another object is to provide a system which allows a service provider to easily perform customer management. A wireless power supply system includes a power storage device having a power storage portion, a terminal charging device for wirelessly supplying electric power to the power storage device, and a management server having user information. Electric power can be supplied to specified users by intercommunication of user information between the power storage device and the terminal charging device and between the terminal charging device and the management server.

Electrical appliance energy consumption control methods and electrical energy consumption systems are described. In one aspect, an electrical appliance energy consumption control method includes providing an electrical appliance coupled with a power distribution system, receiving electrical energy within the appliance from the power distribution system, consuming the received electrical energy using a plurality of loads of the appliance, monitoring electrical energy of the power distribution system, and adjusting an amount of consumption of the received electrical energy via one of the loads of the appliance from an initial level of consumption to an other level of consumption different than the initial level of consumption responsive to the monitoring.

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

The instantaneous power consumption of an appliance is used to determine the status of the appliance, from which further actions may be taken. This invention is premised on the observation that most appliances have a characteristic power consumption pattern that can be used to determine the state of operation of the appliance. An electric coffee pot, for example, consumes high power substantially continuously during the brewing state, then reduces its power level, or power duration, or both, while keeping the pot warm, then terminates its power consumption when it is turned off. In like manner, the power consumption patterns of other appliances, such as toasters, washing machines, dryers, and so on may also be used to determine the state of each appliance. The communicated state may be used by a home-automation system to effect a variety of actions, including notifying the user, terminating the available power to the appliance, initiating an action by another appliance, and so on.

A system and method manage delivery of energy from a distribution network to one or more sites. Each site has at least one device coupled to the distribution network. The at least one device controllably consumes energy. The system includes a node and a control system. The node is coupled to the at least one device for sensing and controlling energy delivered to the device. A control system is coupled to the node and distribution network for delivering to the node at least one characteristic of the distribution network. The node for controls the supply of energy to the device as a function of the at least one characteristic.

An in-vehicle device data communicates with Internet based data processing resources for the purpose of transacting e-mail, e-commerce, and e-business. The in-vehicle device and the Internet based data processing resources can effectuate a wide variety of e-mail, e-commerce, and e-business including accessing auto part databases, warranty, customer, and other remote databases. In addition, e-mail, e-commerce, and e-business transactions can include vehicle security and vehicle service management, data communicating Internet based radio, audio, MP3, MPEG, video, and other types of data. Furthermore, e-mail, e-commerce, and e-business transactions can include interactive advertising, promotional offers, coupons, and supporting other remote data communications.The in-vehicle device can also include functionality for remote monitoring of vehicle performance, data communicating and accessing remote Internet based content and data, and effectuating adjustments and control of vehicle operation. Remote monitoring and control of vehicle operation can be by way of an Internet based data processing resource and can include engine control system programming and setting adjustment, vehicle monitoring, and transmission of vehicle telemetry and metric data. Vehicle telemetry and metric data can include global positioning system (GPS) data, vehicle operational data, engine performance data, and other vehicle data.The in-vehicle device can also wirelessly data communicate with a communication interface device (COM device) or an Internet appliance. Such COM devices or Internet appliances can data communicate wirelessly with an in-vehicle device and simultaneously data communicate in a wired or wireless mode of operation to Internet based data processing resources, and to other data processing resources.

A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of power line sensing devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, the power line sensors can include a split-core transformer. In some embodiments, a power line sensing device is disposed on each conductor of a three-phase network. The sensing devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. Methods of installing, sealing, and protecting the split-core transformers of the power line sensors are also discussed.

A system and method of controlling inductive power transfer in an inductive power transfer system and a method for designing an inductive power transfer system with power accounting. The method of controlling inductive power transfer including measuring a characteristic of input power, a characteristic of power in the tank circuit, and receiving information from a secondary device. Estimating power consumption based on the measured characteristic of tank circuit power and received information and comparing the measured characteristic of input power, the information from the secondary device, and the estimated power consumption to determine there is an unacceptable power loss. The method for designing an inductive power transfer system with power accounting including changing the distance between a primary side and a secondary side and changing a load of the secondary side. For each distance between the primary side and the secondary side and for each load, measuring a circuit parameter on the primary side in the tank circuit and a circuit parameter on the secondary side during the transfer of contactless energy. The method further including selecting a formula to describe power consumption in the system during the transfer of contactless energy based on coefficients and the circuit parameters, and determining the coefficients using the measured circuit parameters.

A system and method for recharging a plug-in hybrid vehicle. The system includes a controller that schedules the recharging of the vehicles on local electrical distribution networks. The system arranges the schedule to minimize the demand loading on the local distribution network to more efficiently operate power plants providing electrical power to the distribution networks. A system for collecting charges associated with the recharging of plug-in hybrid vehicles is also disclosed providing for prepaid utility accounts.

The present invention relates to a network communication system and method to enable the real time buying and selling of electricity generated by fuel cell powered vehicles between a fuel cell powered vehicle and a consumer. The method comprises: providing connections to the vehicle for the supply of a fuel and for transfer of electricity; determining the current cost of fuel and price paid for generating electricity; based at least on the cost of fuel and price paid for generating electricity, determining whether to make the fuel cell powered vehicle available for generation of electricity; when fuel is consumed by the vehicle and electricity generated by the vehicle, collecting data on the quantity of fuel consumed and amount of electricity generated, calculating the cost of the fuel and the value of the electricity generated, providing a debit charge for the cost of fuel consumed and a credit charge for the value of electricity generated. A method to enable the real time buying and selling of electricity generated by fuel cell powered vehicles between an energy service provider and a consumer of electricity is also disclosed.

Disclosed is a method and system for providing reporting and billing information in an installed energy roadway system tied in with a geothermal infrastructure. Newer alternative energy gathering systems will need state of the art reporting systems to generate accurate accounting, power distribution, efficiency, maintenance, billing and third party royalty information. The invention method provides at least one pump of a geothermal infrastructure. The at least one pump is electrically connected to a roadway system electricity grid. The invention method further tracks an amount of energy consumed by the least one pump and charging a consumer the amount of energy consumed by the at least one pump.

A method to calculate energy demand in an energy generation, transmission and distribution network including one or more power plants based on different energy source types including renewable energy, a communications system and one or more local consumption metering units. A customer demand profile for one or more customers is provided. A customer-specified proportion of power demand to be supplied from a given energy source type is registered. A total predicted energy demand dependent is calculated in part on an accumulated demand for the given energy source type.

An energy monitoring and analysis system for a building includes a logging unit, a processing unit, temperature sensors that read the temperatures inside and outside the building, electric current sensors that read electric currents in all independent electric connections at the main connection panel of the building, and other types of sensors such as those related to natural gas flow. The logging unit periodically collects the data from all the sensors and transmits the data to the processing unit. The processing unit analyzes the data using highly sophisticated algorithms, extracts various parameters, profiles the electric energy usage, identifies potential problems with energy transfer and use, and lists recommendations for corrective actions. The processing unit analyzes data of the building, an HVAC system associated with the building, and consuming devices associated with the building.

The present invention includes methods and devices to apply predistortion to correct nonlinearities of a power amplifier in an OFDM symbol transmission system. More particularly, predistortion is patterned to take into account clipping of symbols and to match an effective input range of the predistorter with an average power output of the power amplifier. This invention may be applied to a variety of standards utilizing OFDM technology, including IEEE 802.11a, Hiperlan / 2 and MMAC.

An energy management system for an appliance comprising an interface to receive a schedule having an off-peak time segment and an on-peak time segment; a control to determine an operation to be performed by the appliance; a mode selecting device to select between an energy management mode and an immediate start mode; and a controller connected to the interface, the control, and the mode selecting device. The controller is arranged such that upon selection of the energy management mode, the controller initiates the operation only when a current time is within the off-peak time segment; and upon selection of the immediate start mode, the controller initiates the operation immediately.

A power distribution network system is provided. The system includes a plurality of metering devices configured to generate load side data, a plurality of processing subsystems that is in operational communication with at least one of the plurality of metering devices and a central processing subsystem, wherein the plurality of processing subsystems is configured to receive a subset of the load side data from at least one of the plurality of metering devices, receive supervisory controls and supervisory conditions from the central processing subsystem, determine whether one or more of the supervisory conditions are satisfied based upon the received subset of the load side data, and execute one or more of the supervisory controls based upon the determination whether one or more of the supervisory conditions are satisfied, wherein each of the plurality of processing subsystems is located at a load bifurcation point in the power distribution network.

Generation of renewable energy for, exportation of the renewable energy from, importation of utility generated energy to, and consumption of energy at, a facility are monitored in substantially real time to provide for substantially real time management and reporting of energy performance of the facility. Monitoring of environmental conditions and facility operations of the facility, also in substantially real time and time correlated with the energy monitoring, is performed to further enhance the management and reporting of the energy performance of the facility.

A system and methods that enables smart charging for electric resources. A smart charging method may include smart charging customer guarantees. The charging behavior guarantee may comprise a guaranteed charging schedule that matches a regular charging schedule of an electric resource and provides power flow flexibility. In addition, a smart charging method may manage electric resources via a smart charging benefit analysis. A smart charging benefit may include an impact resulting from the energy management system which is beneficial to an electric resource. A smart charging method may manage the charging behavior of the electric resources on a grid based on the smart charging benefit. Further, a smart charging method may manage electric resources via a smart charging benefit analysis and smart charging customer guarantees.

A network-controlled charge transfer device for transferring charge between a local power grid and an electric vehicle is mounted to a street light. The charge transfer device includes the following: an electrical receptacle to receive an electrical connector for connection to the electric vehicle; an electric power line that couples the power grid to the electrical receptacle through a wiring box; a control device to switch the receptacle on and off; a current measuring device to measure current flowing through the electric power line; and a controller to operate the control device and to monitor output from the current measuring device.

The present invention relates to supervision and control of an energy generation, transmission and distribution system. In particular the present invention discloses a system, method and a computer program product for calculating a demand for energy from power plants based one or more different energy source types, including electrical energy generated from a renewable energy source.

A system and methods that enables smart charging techniques. A smart charging method may include periodically updated schedules. In addition, a smart charging method may include schedules with overrides. Further, a smart charging may involve a method for local load management in the presence of uncontrolled loads. A smart charging method for managing electric resources may also provide direct control over prices-to-devices enabled devices.

An apparatus, system and method in an electrical system using power system information or data associated therewith having a time component associated therewith sampled or obtained from the electrical system at a local and a remote location, wherein the local and remote data are time aligned and used to provide control, monitoring, metering, and / or automation to the electrical system. The local IED may be adapted to receive power system data from the remote IED, time align the local and remote synchronized power system data, and perform math operations on the local and remote power system data.