Abstract

A new operations research model of optimal load flow solved by nonlinear programming methods (the generalized reduced gradient algorithm) is presented. As compared to existing optimal power flow models, this model incorporates network performance variables such as scheduled bus voltages as well as topological and elemental constraints. In addition, the development, sensitivity, optimality and efficiency of the model are explored. Several example problems are implemented and solved. Detailed discussions about the ability of the model to work under a wide variety of network contingencies such as loss of generation or load, loss of a line, and network faults are presented. The model is also briefly examined for its use in the study of network voltage regulation.

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