Accession Number : ADA318045

Title :   Automatic Scheduling of Outages of Nuclear Power Plants with Time Windows.

Descriptive Note : Final rept. Jan-Dec 95,

Corporate Author : CALSPAN UB RESEARCH CENTER BUFFALO NY

Personal Author(s) : Gomes, Carla

PDF Url : ADA318045

Report Date : OCT 1996

Pagination or Media Count : 81

Abstract : This report describes a successful project for transference of advanced AI technology into the domain of planning of outages of nuclear power plants as part of DOD's dual-use program. ROMAN (Rome Lab Outage Manager) is the prototype system that was developed as a result of this project. ROMAN's main innovation compared to the current state-of-the-art of outage management tools is its capability to automatically enforce safety constraints during the planning and scheduling phase. Another innovative aspect of ROMAN is the generation of more robust schedules that are feasible over time windows. In other words, ROMAN generates a family of schedules by assigning time intervals as start times to activities rather than single start times, without affecting the overall duration of the project. ROMAN uses a constraint satisfaction paradigm combining a global search tactic with constraint propagation. The derivation of very specialized representations for the constraints to perform efficient propagation is a key aspect for the generation of very fast schedules - constraints are compiled into the code, which is a novel aspect of our work using an automatic programming system, KIDS.

Descriptors :   *SCHEDULING, *NUCLEAR POWER PLANTS, *ARTIFICIAL INTELLIGENCE, *MAINTENANCE MANAGEMENT, SOFTWARE ENGINEERING, MANAGEMENT PLANNING AND CONTROL, PREVENTIVE MAINTENANCE, COMPUTER AIDED DESIGN, PROTOTYPES, WASTE DISPOSAL, RADIOACTIVE WASTES, RADIATION HAZARDS, NUCLEAR RADIATION PROTECTION, AUTOMATIC PROGRAMMING, CONTAINMENT(NUCLEAR REACTORS), REACTOR SAFETY SYSTEMS, REACTOR REACTIVITY, REACTOR SHUTDOWN.

Subject Categories : Nuclear Power Plants and Fission Reactor Eng
      Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE