Abstract
A basic mathematical model to describe the problem of line overload alleviation has been developed in a companion paper. Algorithms for solving the modeland suitable for incorporation in the Newton-Raphson and decoupled load flow programs are also described. In this paper, the effectiveness of the proposed techniques is examined using a six bus model of the Saskatchewan Power Corporation system, and the IEEE 14, 30 and 57-bus test systems. A single pass of generation rescheduling and load shedding has been found to be adequate for alleviating line overloads in almost all the systems studied. Computational time of each pass of these techniques is approximately 1/2 to 3/4th of the computational time required for the initial load flow. Storage requirements are slightly more than the requirements of the load flow technique used. The proposed techniques identify and determine the existence of a physically realizable operating condition to alleviate the line overload condition. The techniques appear attractive for security and reliability studies, and for operational planning
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