Patent application number | Description | Published |
20130226538 | Detecting State Estimation Network Model Data Errors - Methods for detecting network model data errors are disclosed. In some examples, methods for detecting network model data errors may include splitting a network model into a first plurality of portions, executing an algorithm on each of the portions, identifying a portion for which the algorithm is determined to be non-converged, splitting the identified portion into a second plurality of portions, repeating the executing, identifying and splitting the identified portion until a resulting identified portion is smaller than a predefined threshold, and examining the resulting identified portion to identify plausible data errors therein. In some examples, examining the resulting identified portion to identify plausible data errors therein may include executing a modified algorithm, which may include an augmented measurement set, on the identified portion. | 08-29-2013 |
20130338841 | Parallel Computation of Dynamic State Estimation for Power System - Techniques are disclosed for performing the estimation and/or prediction of the dynamic system state of large power system networks, using a multi-processor approach. More particularly, a large power system network is divided into smaller sub-systems, each sub-system having associated dynamic state variables. Each sub-system is assigned to one or more of a plurality of processing elements, and dynamic state variables for each sub-system are estimated or predicted independently, using the processing elements and sensor measurements. In several embodiments, the dynamic state of each sub-system is computed through the construction of a set of dedicated observers, such as linear parameter-varying (LPV) observers, which are designed to reduce the effects of other sub-systems on the state estimation problem. | 12-19-2013 |
20140265599 | Power Flow Analysis Method and Apparatus for Hybrid AC-DC Systems - Power flow in a hybrid AC-DC power system is analyzed by determining DC power injection variables as a function of AC state information for common coupling buses which connect AC and DC grids. The AC state information includes voltage magnitude and phase angle information for the common coupling buses and buses in the AC grid(s). The DC power injection variables indicate AC power injection into the one or more AC grids at the common coupling buses from the DC grid(s). The AC state information is revised iteratively as a function of the DC power injection variables and the sensitivity of the DC power injection variables to the AC state information, and the DC power injection variables and the sensitivity of the DC power injection variables are revised iteratively as a function of the revised AC state information until the power mismatch is acceptable. | 09-18-2014 |
20150066402 | Power System State Estimation Using A Two-Level Solution - A power system grid is decomposed into several parts and decomposed state estimation steps are executed separately, on each part, using coordinated feedback regarding a boundary state. The achieved solution is the same that would be achieved with a simultaneous state estimation approach. With the disclosed approach, the state estimation problem can be distributed among decomposed estimation operations for each subsystem and a coordinating operation that yields the complete state estimate. The approach is particularly suited for estimating the state of power systems that are naturally decomposed into separate subsystems, such as separate AC and HVDC systems, and/or into separate transmission and distribution systems. | 03-05-2015 |
20150134132 | Method and Apparatus for Security Constrained Economic Dispatch in Hybrid Power Systems - The teachings herein disclose an advantageous method and apparatus for performing Security Constrained Economic Dispatch (SCED) for a hybrid power system that includes one or more AC grids interconnected with one or more multi-terminal High Voltage DC (HVDC) grids. The teachings include optimizing a non-linear objective function, subject to a set of constraints that include AC and DC grid constraints, for determining the SCED solution using successive linear approximation. The linear programming model used in the linear approximations is advantageously augmented with a DC grid portion in a manner that accounts for the effects of the DC grid on the AC grid, but which does not require exposing proprietary DC grid modeling details, and which conforms the resultant SCED solution to all applicable AC and DC grid constraints, including AC grid line flow constraints, AC grid power balance constraints, DC grid line flow constraints, and DC grid power balance constraints. | 05-14-2015 |
Patent application number | Description | Published |
20080209421 | SYSTEM AND METHOD FOR SUSPENDING TRANSACTIONS BEING EXECUTED ON DATABASES - A database management system managing one or more databases to suspend access to at least one selected database by one or more processes or applications (e.g., message processing programs, batch messaging programs, etc.). In some instances, the one or more databases may include one or more IMS databases. Access to the at least one selected database may be suspended to enable one or more operations to be performed on the at least one selected database by the database management system and/or an outside entity (e.g., a user, an external application, etc.). For example, the one or more operations may include an imaging operation, a loading operation, an unloading operation, a start operation, a stop operation, and/or other operations. In some instances, access to the at least one selected database may be suspended without canceling transactions being executed by the one or more processes or applications on the selected at least one database. | 08-28-2008 |
20100281006 | SYSTEM AND METHOD FOR SUSPENDING TRANSACTIONS BEING EXECUTED ON DATABASES - A database management system managing one or more databases to suspend access to at least one selected database by one or more processes or applications (e.g., message processing programs, batch messaging programs, etc.). In some instances, the one or more databases may include one or more IMS databases. Access to the at least one selected database may be suspended to enable one or more operations to be performed on the at least one selected database by the database management system and/or an outside entity (e.g., a user, an external application, etc.). For example, the one or more operations may include an imaging operation, a loading operation, an unloading operation, a start operation, a stop operation, and/or other operations. In some instances, access to the at least one selected database may be suspended without canceling transactions being executed by the one or more processes or applications on the selected at least one database. | 11-04-2010 |
Patent application number | Description | Published |
20090111585 | SYSTEM AND METHOD OF LOCALIZING ASSETS USING TEXT SUBSTITUTIONS - A system and method for translating a phrase for video game development for games to be made available in a plurality of natural languages is disclosed. The method includes determining that code for a video game being developed has been created or modified. The method further includes inspecting the code to determine whether a phrase to be displayed or to be spoken during game play is present therein, wherein the phrase comprises a plurality of words. The method further includes comparing the entire phrase to a collection of phrases for which one or more translations to another natural language are already available, and if an exact match is determined, then reusing the one or more available translations for one or more corresponding languages. | 04-30-2009 |
20090112575 | SYSTEM AND METHOD FOR LOCALIZING ASSETS USING FLEXIBLE METADATA - A system and method for managing localization workflow for video game development is disclosed. The method includes determining that a string is to be translated. The method further includes associating a translator with the string. The method further includes providing video metadata to the translator, wherein the video metadata includes at least video information from game play of the video game being developed such that the translator is provided with context for the translation. | 04-30-2009 |
20090112577 | SYSTEM AND METHOD FOR LOCALIZATION OF ASSETS USING DICTIONARY FILE BUILD - A system and method for organizing localization content for video game development is disclosed. The method includes generating executable instructions for a video game being developed, wherein the video game is being developed for deployment in a plurality of natural languages, wherein text strings and/or multimedia data to be rendered during game play are referenced by the executable instructions. The method further includes identifiably storing the text strings and/or multimedia data in one or more dictionary files such that the text strings and/or multimedia data are identifiably referenced by references in the executable instructions and are identifiably referenced by a corresponding natural language. | 04-30-2009 |
20090113445 | SYSTEM AND METHOD FOR LOCALIZING ASSETS USING AUTOMATIC GENERATION OF ALERTS - A system and method for managing localization workflow for video game development is disclosed. The method includes programmatically determining that a string has been added to or modified in an executable asset of a video game under development. The method further includes programmatically inspecting the executable asset to determine whether the string is to be visually displayed or audibly played during game play. The method further includes programmatically generating an electronic message for a translator based at least partly on a positive determination that there is a string to be translated, wherein the electronic message is intended to notify the translator of a translation task associated with at least the text to be translated. | 04-30-2009 |