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| Number | Title | Issue Date |
| 8150556 | Method of coordinated operation for turbine-generator shafts torsional vibration protection The present invention relates to the coordinated control method of torsional stress relay in large thermal power plants' generators (300 MW and above), which will be adopted when shaft torsional oscillations occur. This invention also publishes a method of realizing... | 04/03/2012 |
| 8121740 | Feeder automation for an electric power distribution system A soft PLC technology based computer-implemented method includes updating a system configuration incidence matrix for an electric power distribution system based on both a depth-first search of a connectivity matrix for the electric power distribution system and inf... | 02/21/2012 |
| 8116919 | Circuit breaker configuration A circuit breaker configuration contains a number of circuit breakers each to be connected via lines to a system component of a power distribution system and a plurality of control buttons with a respective one of the control buttons connected to a respective one of... | 02/14/2012 |
| 8086357 | Offline configuration using USB download in an integrated power distribution system In accordance with the invention a configurable electrical distribution system is provided for selectively connecting an electrical power source to load devices. The system comprises a panel and a plurality of switching devices mounted in the panel, each switching d... | 12/27/2011 |
| 8019484 | Damping electromechanical oscillations in power systems The present disclosure is concerned with the combined voltage or power flow control and damping of electromechanical oscillations in an electric power system by Flexible AC Transmission System (FACTS) devices or High Voltage DC (HVDC) transmission devices. To this e... | 09/13/2011 |
| 8010239 | Partial discharge counter for diagnosis of gas insulated switchgear The present invention relates generally to a partial discharge counter for the diagnosis of a GIS. The partial discharge counter includes a partial discharge detection sensor for detecting a partial discharge. A first surge inflow prevention circuit separates a surg... | 08/30/2011 |
| 7933689 | Method for controlling at least one load connected to a primary and a backup power supply A method for controlling at least one load connected to a primary and a backup power supply having sensor for sensing a voltage on the primary power supply with a first voltage sensor; sensor for sensing a voltage on the backup power supply with a second voltage sen... | 04/26/2011 |
| 7840313 | Grid interconnection device, grid interconnection system, and electric power control system Disclosed is a grid interconnection device that converts electric power from a power supply device into predetermined alternating-current power, and interconnects the power supply device to a power distribution system. The grid interconnection device includes a dete... | 11/23/2010 |
| 7826932 | Systems and methods for updating graphical representations on multiple interface devices A switch-gear system having a central controller for operating a plurality of circuit breakers, a first interface device, a second interface device, and an update system in communication with the first and second interface devices is provided. The first interface de... | 11/02/2010 |
| 7813842 | Systems and methods for use in providing local power line communication The present embodiments provide systems and methods for implementing and controlling local power line communication (PLC) networks. Some embodiments include a central controller communicationally coupled with a PLC power line, a sensor adaptor coupled between the PL... | 10/12/2010 |
| 7797083 | Communicating a power control feedback signal Communicating a power control feedback signal from a system is disclosed. In some embodiments, upon determining how to control input power which may be based at least in part, for example, on an in situ measurement of an operating condition in an operating environme... | 09/14/2010 |
| 7751943 | Protection process and control system for a gas turbine In a process for protection of a gas turbine (1) from damage caused by pressure pulsations (P), pressure pulsations (P) occurring during the operation of the gas turbine (1) are measured, from the measured pressure pulsations (P), a pulsation-time sign... | 07/06/2010 |
| 7747356 | Integrated protection, monitoring, and control system A method and system for monitoring and controlling a power distribution system is provided. The system includes a plurality of circuit breakers and a plurality of node electronic units. Each node electronic unit is mounted remotely from an associated circuit breaker... | 06/29/2010 |
| 7706927 | Circuit breaker configuration A circuit breaker configuration contains a number of circuit breakers each to be connected via lines to a system component of a power distribution system and a plurality of control buttons with a respective one of the control buttons connected to a respective one of... | 04/27/2010 |
| 7636616 | Protection system for power distribution systems There is disclosed a protection system for a power distribution system. The system has a processor, a breaker; a network coupled to the processor, a first module coupled to the network and the breaker, a second module coupled to the network, and an algorithm. The al... | 12/22/2009 |
| 7634329 | Intelligent aircraft secondary power distribution system that facilitates condition based maintenance An electrical power distribution system comprises a solid state power controller in communication with an aircraft system main data bus via a gateway module and a condition based maintenance module in communication with the solid state power controller via a communi... | 12/15/2009 |
| 7496430 | Intelligent fault detector system and method A quick response system incorporated in a TWACS for mapping an outage in an electrical distribution system without having to continuously poll the electrical meters connected to the system. In a primary embodiment of the invention when a fault is sensed to have occu... | 02/24/2009 |
| 7496429 | Power plant operation control system and a power plant maintaining and managing method Quick recovery or recovery support of a faulty power generating facility by real time diagnoses such as facility failure diagnosis, supervision for failure symptoms, facility diagnosis by evaluation of performance using databases between the power generating facilit... | 02/24/2009 |
| 7460929 | Integrated current fault controller A fault monitoring and management system integrates a fault controller with the power load functions within the power management device of a battery operated system. Multiple input load lines allow the fault controller to diagnose and disable defective or faulty pow... | 12/02/2008 |
| 7451018 | System and apparatus for detecting and monitoring circuit breaker operation A control apparatus for a plurality of devices, especially circuit breakers. The control apparatus includes activation circuitry for each device, and a power supply for supplying electrical power to the activation circuitry. The control apparatus adds a respective e... | 11/11/2008 |
| 7437200 | Software based control system for nuclear reactor standby liquid control (SLC) logic processor A method and system is provided for a nuclear reactor safety related application. The method includes executing two forms of a same application-specific logic, one of the two forms implemented as hardware logic, and the other of the two forms implemented as software... | 10/14/2008 |
| 7418315 | Power generation system A power generation system (200) of the present invention comprises a power generation portion (202) configured to generate power, a load power detecting means (205) configured to detect a load power supplied from a power source including the pow... | 08/26/2008 |
| 7418314 | Methods and apparatus for providing and distributing standby power Aspects of the invention are directed to power distribution systems and methods for distributing power from a primary power source and a backup power source to a load. In one particular aspect, a power distribution system includes a first input to receive input powe... | 08/26/2008 |
| 7376491 | Detection of islanding in power grids A method for detecting islanding conditions in an electrical grid having a power line voltage includes monitoring a detectable signal different from the power line voltage at a generating station, superimposing the detectable signal onto the power line voltage at a ... | 05/20/2008 |
| 7369921 | Power distribution expert system A power distribution expert system is provided to determine an optimal power distribution configuration, and also to determine an optimal transition path to reach said optimal configuration. An exemplary first set of rules is provided to determine an optimal power d... | 05/06/2008 |
| 7366622 | Arc fault identification using model reference estimation An apparatus and method for the identification of arcing phenomena in a faulted electrical network. By continually updating a model for the load on an electrical branch, an estimate of the behavior of that load may be calculated. Since electrical arcing faults resul... | 04/29/2008 |
| 7353084 | Generator controller A generator controller, in its various embodiments, displays genset fault messages, a genset elapsed time hour meter, service countdown reminder, monitors battery voltage changes over multiple periods of time to establish and display the “battery level,” uses th... | 04/01/2008 |
| 7346462 | System, method, and article of manufacture for determining parameter values associated with an electrical grid A system, method, and article of manufacture for determining parameter values associated with an electrical grid in accordance with an exemplary embodiment is provided. The electrical grid has a point of interconnection where the electrical grid is electrically coup... | 03/18/2008 |
| 7340311 | Electrical panel access and control apparatus including true emergency stop and power buss lockout An improved electrical panel design provides a modular, power-reliable, buss-lockout and true emergency-stop capabilities. Through the use of an interface, the approach eliminates numerous outdated, if not antiquated, parts, including safety locks, mechanical discon... | 03/04/2008 |
| 7335055 | Power supply control apparatus A control apparatus is provided for controlling a power supply. The apparatus includes a direct current (DC) transformer, a plug, a plurality of electrical outlets, a plurality of switches corresponding to the electrical outlets, a plurality of relays, a fuse, and a... | 02/26/2008 |
| 7336202 | Temperature monitoring device Temperature measurement data obtained by measuring the temperature of a cable clamp (31) by a temperature sensor (320) is radio-transmitted from a temperature sensing unit (32) at a predetermined timing, and the radio-transmitted temperature mea... | 02/26/2008 |
| 7337081 | 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... | 02/26/2008 |
| 7332834 | Power outlet device for charger and method of transmitting power thereof A power outlet device for a charger comprises an input port, a DC power supply unit, a control unit, a current sensor, a switch, and an output port. The input port of the power outlet device for a charger is used to receive an AC power, and the current sensor and th... | 02/19/2008 |
| 7321810 | Method of dynamic economic dispatch Certain exemplary embodiments provide a method comprising: for an electrical power system comprising a plurality of committed electrical power generating units: for each of the committed electrical power generating units, obtaining an optimal power output temporal t... | 01/22/2008 |
| 7319922 | Protective device and method for installation of a protective function in a protective device A protective device for an electrical power distribution network has: means for processing measured values from measurement appliances for the power distribution network, means for initiating switching commands by means of primary appliances for the power distributi... | 01/15/2008 |
| 7302302 | Method for controlling a production machine, in particular a machine tool, with the controller associated with a production machine A production machine has a controller and a plurality of components that include link addresses associated with a memory region of a separate computer that can be connected with the controller via a computer-to-computer link. Parameter data for the components are st... | 11/27/2007 |
| 7301738 | Method and apparatus for minimally invasive network monitoring A method and apparatus for monitoring a communication network is provided. The network includes a plurality of node electronics units communicatively coupled to at least one central control processing unit through at least one network wherein each network includes a... | 11/27/2007 |
| 7295133 | Electrical circuit monitoring device The present invention is directed to a method of (1) providing continuous monitoring of various operating and environmental characteristics using RFID technology or similar wireless technology and (2) capturing data on historical events that have occurred on the cir... | 11/13/2007 |
| 7292961 | Capturing session activity as in-memory snapshots using a time-based sampling technique within a database for performance tuning and problem diagnosis Techniques for capturing samples of session activity in a database are provided. Session activity for active sessions is recorded at certain times over a time period. Accordingly, a sample of session activity is taken for sessions in a database. ... | 11/06/2007 |
| 7288921 | Method and apparatus for providing economic analysis of power generation and distribution An economic dispatch program optimally allocates load demand specifying real power and reactive power to be generated by a power plant among various power generators in a manner so that each of the power generators are operated within its optimal operating space as ... | 10/30/2007 |
