Analytical Tools for Power System Restoration Conceptual Design

A conceptual framework for computer-aided monitoring and assessment during system restoration using analytical tools is proposed The basic structure is similar to the one for security monitoring and assessment. State estimation and the related functions, such as observability analysis. bad data identification, external network modeling, that are used in security analysis, can be modified for application to system restoration monitoring. The work in this area is reported. For restoration assessment, in addition to load flows and optimal power flows that are used in security assessment, a host of analysis/optimization programs is required. These analytical tools are identified and categorized. To synthesize possible control sequences and to select and coordinate analysis procedures for assessing restoration plans is a very complex task. Aknowledge-based expert system architecture for this task is suggested. The conceptual design of the knowledge-based system and its interface with the analytical tools are presented.