CURTAILED NUMBER AND REDUCED CONTROLLER MOVEMENT OPTIMIZATION ALGORITHMS FOR REAL-TIME VOLTAGE REACTIVE POWER-CONTROL

This paper addresses the problem of curtailing the number of control a ctions and minimizing controller movements for real-time voltage/react ive power control. Algorithms are proposed to identify the most effect ive subset of control actions and to minimize controller movements. An algorithmic objective function appropriate for the treatment of syste m security and economy is also proposed. It eliminates trial and error adjustments of weightage factors for a combined objective. A single p arameter decides the priority between movement of controls and gains i n security as well as loss reduction. The algorithms are compared and contrasted with SLP and SQP techniques by means of two practical syste ms.