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The effect of electric transmission constraints on how power generation companies bid in the Colombian electrical power market
Estudio sobre el papel de las restricciones de transmisión en la oferta de la energía eléctrica en Colombia
DOI:
https://doi.org/10.15446/ing.investig.v30n2.15735Keywords:
electrical constraint, bidding price, optimal power flow, bidding strategy, power market (en)restricciones eléctricas, precios de oferta, flujos óptimos de potencia, estrategias de oferta, mercados de electricidad (es)
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This paper presents the results of research about the effect of transmission constraints on both expected electrical energy to be dispatched and power generation companies' bidding strategies in the Colombian electrical power market. The proposed model simulates the national transmission grid and economic dispatch by means of optimal power flows. The proposed methodology allows structural problems in the power market to be analysed due to the exclusive effect of transmission constraints and the mixed effect of bidding strategies and transmission networks. A new set of variables is proposed for quantifying the impact of each generation company on system operating costs and the change in expected dispatched energy. A correlation analysis of these new variables is presented, revealing some interesting linearities in some generation companies' bidding patterns.
El presente artículo presenta los resultados de una investigación sobre el análisis del efecto que tienen las redes de transmisión sobre la cantidad esperada de energía a generar y sobre las estrategias de precio de oferta para los agentes del mercado eléctrico colombiano. El modelo desarrollado implementa el sistema de transmisión nacional (STN) y simula los procesos de despacho económico reales a través de flujos óptimos de potencia. Esta metodología permite el análisis de problemas estructurales del mercado debido al efecto exclusivo de las redes de transmisión y al efecto conjunto de las estrategias comerciales de oferta en un ambiente con restricciones de transmisión. Para realizar este análisis se propone el uso de nuevas variables que cuantifican los cambios en la generación real esperada y el impacto de cada agente sobre el costo de operación del sistema. Finalmente, se presenta un análisis de correlación para estas nuevas variables, las cuales reflejan comportamientos altamente lineales para algunos agentes del mercado.
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References
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Copyright (c) 2010 Luis Eduardo Gallego Vega, Oscar Germán Duarte Velasco
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