Practices and new concepts in power system control

This paper reviews the existing power system control practices (both inside and outside of North America) and considers their ability to cope with the new regulatory and technological changes facing the electric supply industry in the present and near future. New or revised control practices are also methodically analyzed to see how they could meet the evolving power system control needs. Given both the trend of technological advances over the last decade and the expectation that those trends will continue, the near future holds opportunities for tremendous improvements in power system control. Key issues were identified and used to review possible directions for the concepts, philosophy, and guiding principles for power system control. Input comes from the electric supply industry through questionnaires, various relevant industry meetings, published materials, review of other on-going research, and working meetings with the North American Electric Reliability Council Performance Subcommittee. This research was sponsored by the Electric Power Research Institute (EPRI).