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Center for Nonlinear Studies |
Due to the significant advantages over traditional coal-fired units, combined-cycle gas turbines (CCGTs) have been increasingly installed in the last decade and are becoming an important generation technology in today's power system operations. Indeed, faster ramping capability of CCGTs makes them ideal to support a deeper penetration of renewable distributed energy resources. This talk presents a hybrid combined-cycle gas turbine model built in Midcontinent Independent System Operator (MISO) day-ahead market, in order to enhance operation flexibility of CCGTs in practice. The proposed hybrid model, by taking benefits of combined offers on configurations and individual physical turbines from market participants, can reflect physical operation features of CCGTs more accurately. A comprehensive review on CCGT models in literature and industry is conducted with their advantages and shortcomings. By taking the benefits of the two most investigated models, i.e., configuration-based model (CFBM) and component-based model (CPBM), the mapping relationship between these two models is then revealed and constructed for deriving the proposed hybrid model. Tightening formulations and techniques are further discussed for achieving better computational performance. The test results show great social welfare in future MISO market.
Host: Harsha Nagarajan