Distribution System State Estimation

Many good load-estimation algorithms for the electricity distribution system have arisen from research activities, but they often are difficult for utilities to implement. This project will develop a customizable load estimation system, using OSIsoft's Historian with extensions to the IEEE Power Quality Data Interchange Format (PQDIF) standard, to collect and manage the data. In Phase I, the OSIsoft RtAnalytics package and the MathWorks Matlab product will be used to develop customizable algorithms for load modeling, estimation, and forecasting. The PQDIF will be enhanced to support the data necessary for load modeling. Host utilities and candidate algorithms will be identified for Phase II implementation. The end result will be a load estimation toolbox that is suitable for large-scale applications. Commercial Applications and Other Benefits as described by the awardee: Using the load estimation toolbox, researchers from universities or industry should be able to develop new modules as either OSIsoft or MatLab add-ons. Utilities that already use the OSIsoft platform, which amounts to 50-75% of the U.S. market, should find these modules easy to adopt and customize.