Benefits of Voltage Scheduling in Power Systems

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Abstract
This paper concerns itself with the utilization and the coordination of reactive sources and other voltage control equipment in system operations. The reactive sources specifically considered are: generators, synchronous condensers, switched static capacitors and shunt reactors, and transformers with and without load tap changing capabilities. The paper presents a methodology for determining the benefits that can be achieved in the proper scheduling of these sources in a power system. The benefits as shown are: savings in fuel production costs, unloading of the system equipment, improved system security, and improved voltages over the system. From a large system study conducted, it appears that these benefits can be obtained with only minor modifications in present scheduling procedures.

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