Economic dispatch and cost analysis on a Power system network interconnected with Solar Farm

Frequent escalation of fuel prices, concerns on environment and diminution of fossil fuel reserves and have forced the incorporation of Renewable Energy resources with the existing generation. This paper presents an Economic Dispatch model developed for a system consisting of thermal units and Photo Voltaic (PV) plants. Since solar power is intermittent in nature, Beta distribution function is utilized for estimating the power output of PV panels. The seasonal changes of desired location are also included for effective analysis of the output. Case studies are carried out for various generation levels and seasonal changes. The possible choices of installing solar plants in the test system are analysed. The proposed methodology is tested and validated on a standard IEEE 30 bus test system.

Keywords:

Economic dispatch, solar irradiance, Beta distribution function thermal generator, PV array,

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Appendix A: Cost coefficients and generation limits for an
IEEE 30 bus system Generator Bus No ($/hr) Limits(MW) ai 0.00375 0.0175 0.0625 0.0083 0.025 0.025 Pgmin 50 20 15 10 10 12 13 3
Appendix B: Schematic diagram of an IEEE 30 bus system