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| Number | Title | Issue Date |
| 8135106 | Protection of reactor cores from unstable density wave oscillations The present invention provides a method of operating a Boiling Water Reactor, having the steps of analyzing LPRM signals for oscilliatory behavior indicative of neutron-flux-coupled density wave oscillations, determining if oscilliatory behavior is present in the si... | 03/13/2012 |
| 7945011 | Enhanced steam dump (bypass) control system The present invention relates to a method of controlling a nuclear reactor during a transient period. The method includes actuating the steam dump system in response to a temperature error signal and a power mismatch signal. ... | 05/17/2011 |
| 7860206 | Reactor power control apparatus of a natural circulation boiling water reactor and a feed water control apparatus and nuclear power generation plant In order to provide a reactor power control apparatus which can maintain a stable water level when reactivity control based on control rod operation and water level adjustment is performed, this invention comprises a turbine control which calculates the load set err... | 12/28/2010 |
| 7742555 | Enhanced steam dump (bypass) control system The present invention relates to a method of controlling a nuclear reactor during a transient period. The method includes actuating the steam dump system in response to a temperature error signal and a power mismatch signal. ... | 06/22/2010 |
| 7366273 | Method of determining margins to operating limits for nuclear reactor operation In a method of determining an operating margin to a given operating limit in a nuclear reactor, operational plant data from an on-line nuclear reactor plant is accessed, and reactor operation is simulated off-line using the operational plant data to generate predict... | 04/29/2008 |
| 7356482 | Integrated change management unit An integrated system for managing changes in regulatory and non-regulatory requirements for business activities at an industrial or commercial facility. Application of this system to environmental, health and safety activities, and to food, drug, cosmetic, and medic... | 04/08/2008 |
| 7333584 | Nuclear power plant and operation method thereof A nuclear power plant and method of operation for augmenting a second reactor thermal power output in a second operation cycle to a level larger than a first reactor thermal power output in the previous operation cycle. The plant is equipped, for example, with a rea... | 02/19/2008 |
| 7269925 | Layout of production facility An improved layout for a manufacturing facility is disclosed. The layout includes a hub surrounded by a production corridor. The production corridor comprises production stages used in the manufacturing process. The hub, having direct line-of-sight to the production... | 09/18/2007 |
| 7240297 | User assistance system A method and system for providing user assistance in utilizing a computer program is disclosed that provides the capability for combining an active display of the past, current, and future steps in an ongoing process with a series of associated decision panels and f... | 07/03/2007 |
| 7233886 | Adaptive modeling of changed states in predictive condition monitoring An improved empirical model-based surveillance or control system for monitoring or controlling a process or machine provides adaptation of the empirical model in response to new operational states that are deemed normal or non-exceptional for the process or machine.... | 06/19/2007 |
| 7215360 | Error propagation tree technology A method and system for providing condition information associated with an entity being analyzed. The method includes presenting nodes corresponding to components of the entity according to a tree-like configuration, and providing condition information associated wi... | 05/08/2007 |
| 7206646 | Method and apparatus for performing a function in a plant using process performance monitoring with process equipment monitoring and control A process control system uses a data collection and distribution system and an asset utilization suite to collect data or information pertaining to the assets of a process plant from various sources or functional areas of the plant including, for example, the proces... | 04/17/2007 |
| 7203688 | Analysing tactical data link messages A method of analyzing data link messages is disclosed. These messages include a message type field and at least one message content field whose meaning is determined by the message type. The method includes storing the plurality of data link messages in a database. ... | 04/10/2007 |
| 7191108 | Structured approach for risk-informing deterministic safety analyses A risk-informed method for safety analyses of nuclear power generating systems is provided. In an exemplary embodiment, the method includes ordering events by an initiating event frequency, defining an initiating event frequency threshold value, defining acceptance ... | 03/13/2007 |
| 7177383 | Method and system for safety regulation in nuclear power regulating systems A system and method for monitoring rod moving coils in nuclear power system. The system ensures that these coils are each functioning properly, and thus prevent movement of the other coils when a dysfunctional coil is detected. The method for accomplishing this moni... | 02/13/2007 |
| 7158919 | Remote monitoring system A remote monitoring system including a sub-system, local to a nuclear power plant and a remote sub-system at an operations base. Process data is collected manually by a hand-held computer and automatically by instrumentation on the power plant. The data collected is... | 01/02/2007 |
| 7149655 | Methods and apparatus for safety controls in industrial processes A safety instrument suitable for use in an industrial application includes a logic card having a microcontroller configured to perform self-test of the instrument and surveillance functions of an external system that is monitored and/or controlled by the instrument.... | 12/12/2006 |
| 7139351 | Method of and control system for controlling a nuclear reactor outlet temperature The invention relates to a control system for controlling an average temperature of a coolant at a reactor core outlet. The control system method detects an average temperature of the coolant at the reactor core outlet, compares the actual average temperature of the... | 11/21/2006 |
| 7139355 | Method of operating a nuclear power plant at multiple power levels A method of operating a nuclear power plant includes determining and licensing a maximum power level at which the power plant can be operated subsequent to the beginning of a fuel cycle, and with the power plant being operated at less than its maximum power rating a... | 11/21/2006 |
| 7133488 | Neutron flux mapping system for nuclear reactor A neutron flux mapping system for a nuclear reactor including: drivers each including a geared motor, a helical gear driven by the geared motor, and a storage reel adapted to supply, to the helical gear, a detector cable carrying a detector; and a double indexing pa... | 11/07/2006 |
| 7113085 | Enhanced device alarms in a process control system An alarm display and interface system method for use in a process control system enhances device alarm messages to enable the integrated display device alarms with process alarms. The system and method receives a device alarm message from a field device and the devi... | 09/26/2006 |
| 7110833 | Plant operating apparatus and method In a CRT operation system for operation and monitoring of plant equipment in a plant worksite through a central control room and a network, an operation control personal computer is provided for monitoring and operating the plant equipment, and one or more wireless ... | 09/19/2006 |
| 7089072 | Semiconductor manufacturing fault detection and management system and method The present disclosure provides a semiconductor manufacturing fault detection and management system and method for monitoring at least one manufacturing entity to detect state changes. ... | 08/08/2006 |
| 7085383 | Secured cellular telephone communications system, method, and computer program product A data processing system, method, and product are disclosed for securing cellular telephone transmissions utilizing a conventional cellular telephone. A conventional cellular telephone and a computer system are provided. The computer system is separate and apart fro... | 08/01/2006 |
| 7069185 | Computerized machine controller diagnostic system A computerized machine control (CMC) diagnostic system communicates with a computerized machine controller that utilizes a control program to control the operation of a machine through the use of a plurality of digital channels. In general terms, the system includes... | 06/27/2006 |
| 7019599 | Apparatus for continuous phase quadrature amplitude modulation and demodulation An apparatus for continuous phase quadrature amplitude modulation and demodulation to continuously process phases and amplitudes at symbol change points in an M-ary quadrature amplitude modulation method. The apparatus includes a continuous phase quadrature modulato... | 03/28/2006 |
| 7012517 | Damage control system for ships A damage control system for monitoring, suppressing and eliminating leakage damage, fire damage and/or ABC contamination after collisions, running aground, the effects of weapons, etc., has an automation and monitoring system for system failures, voltage outages and... | 03/14/2006 |
| 7013411 | Method for the automated generation of a fault tree structure A method for automated generation of an extended fault tree structure adapted to a production installation or a specific installation is used within a system determining the effectiveness and analyzing causes of faults. Generation takes place using a data processor ... | 03/14/2006 |
| 7006898 | Method and apparatus for operating and controlling a power system A method and apparatus for operating a power system is disclosed. A plurality of sensor signals each representative of an operating characteristic of a power system module are received at a common data bus. The sensor signals are received and analyzed at a controlle... | 02/28/2006 |
| 6975962 | Residual signal alert generation for condition monitoring using approximated SPRT distribution A system and method for monitoring a condition of a monitored system. Estimates of monitored parameters from a model of the system provide residual values that can be analyzed using a sequential probability ratio test (“SPRT”). The invention employs empirically ... | 12/13/2005 |
| 6957172 | Complex signal decomposition and modeling A system, method and program product for monitoring a complex signal for ultrasensitive detection of state changes, or for signature recognition and classification is provided. A complex signal is decomposed periodically for empirical modeling. Wavelet analysis, fre... | 10/18/2005 |
| 6954819 | Peripheral bus switch to maintain continuous peripheral bus interconnect system operation A peripheral bus switch that is adapted to connect together a pair of electrically independent peripheral buses to which arrays of peripheral devices (e.g. hard disk drives) are respectively connected in a peripheral bus interconnect system to ensure continuous acce... | 10/11/2005 |
| 6952705 | Method, system and program product that utilize a hierarchical conceptual framework to model an environment containing a collection of items A method, system and program product are disclosed for enabling a user to construct a conceptual hierarchical framework representing a virtual or physical environment. The framework may then be populated with a collection of items. Users may graphically and intuitiv... | 10/04/2005 |
| 6938584 | Feedwater control system considering pressure drop of feedwater control valve in nuclear power plant and control method therefor A feedwater control system considering a pressure drop of feedwater control valve in a nuclear power plant and a control method therefor are provided. In the feedwater control system, a first detection unit includes: a flow error signal generator for generating a fl... | 09/06/2005 |
| 6928132 | Methods and apparatus for operating a system A method for operating a system having a plurality of modes and interlocks between the modes is provided. The method includes operating the system in a first mode and switching the system to a second mode without going to a standby mode. ... | 08/09/2005 |
| 6918068 | Fault-tolerant communications system and associated methods A communications system may include a plurality of communications buses, at least one bus device connected to the plurality of communications buses, and a plurality of bus controllers for sending a plurality of bus enable signals to the at least one bus device. The ... | 07/12/2005 |
| 6910156 | Method and system for diagnosing a technical installation A diagnostic method and system for a technical installation establish the cause of a fault event. A reliable, flexible and simple possible way of diagnosing an installation is provided by placing state variables that characterize an operating state of the technical ... | 06/21/2005 |
| 6801885 | Process for synthesizing a database for nuclear power plant containment evaluation A method of evaluating a containment building design includes the steps of assembling a first database of test results; selecting models (algorithms) for the design to be evaluated; comparing a first set of test results of the model to test results in the first data... | 10/05/2004 |
| 6798859 | Branch amplifier card A branch amplifier card for a nuclear reactor control rod drive control system is provided. The control system includes a control processor, a plurality of transponder cards arranged in clusters with each cluster under the control of a branch amplifier card. The bra... | 09/28/2004 |
| 6674826 | Method of operating a nuclear power plant at multiple power levels A method of operating a nuclear power plant includes determining and licensing a maximum power level at which the power plant can be operated subsequent to the beginning of a fuel cycle, and with the power plant being operated at less than its maximum pow... | 01/06/2004 |
