Applications of load flow by hybrid computer

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Virginia Polytechnic Institute and State University


The purpose of this study was to investigate the usefulness and practicality of the hybrid load flow program. After the load flow program was defined, the desirability for rapid solution times in certain applications was explained.

An analog model of an electric power system was developed. This model included representations of transmission lines, buses, loads and generations. When the hybrid load flow was implemented, the results indicated that the algorithm was very useful in terms of speed and accuracy.

An algorithm for determining the impedance matrix of the power system network was developed using the hybrid computer. When implemented, it proved helpful in improving the accuracy of the hybrid load flow. Application of the hybrid computer for use in an optimal load flow problem was also investigated. An algorithm for the economic dispatch problem was developed.

Finally, conclusions were made about the applicability of the hybrid load flow to the electric power industry and recommendations were presented for further research.