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Assessment and analysis of local marginal prices as an effect of electric transmission constraints in the Colombian power market
Estimación y análisis de precios nodales como efecto de las restricciones de transmisión en el mercado mayorista de Colombia
DOI:
https://doi.org/10.15446/ing.investig.v30n3.18179Keywords:
Local marginal price, bidding price, transmission constraint, power market, optimal power flow (en)restricciones eléctricas, precios de oferta, flujos óptimos de potencia, precios nodales (es)
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This paper gives the results of research assessing and analysing local marginal prices in the national transmission grid as an alternative for analysing the effect of electric transmission constraints in the Colombian power market. This study compares the current one-bus model where a spot price is determined without considering transmission network constraints. It describes the modelling of the national transmission grid, power system operation and economic dispatch and a methodology for approaching the system´s electrical constraints and operational constraints. An analysis of local marginal prices for each operational zone in the Colombian power system is presented as a result of this modelling, as well as statistical modelling of congestion income.
El presente artículo presenta los resultados de una investigación sobre la estimación y análisis de precios nodales para el sistema de transmisión nacional de Colombia, como una alternativa para analizar el efecto de las restricciones de transmisión en el mercado mayorista de Colombia. Esta alternativa se plantea contra el modelo actual del mercado mayorista, el cual consiste en un modelo uninodal del sistema, sin darle un tratamiento adecuado a las restricciones de transmisión. La investigación describe el modelamiento del sistema de transmisión nacional, el modelamiento de la operación del despacho económico en el país y una metodología de refinamiento que incluye tanto las restricciones eléctricas como operativas del sistema. Como resultados se presenta un análisis de los precios nodales obtenidos para cada área operativa del sistema de transmisión colombiano y un análisis sobre las rentas de congestión del sistema.
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Copyright (c) 2010 Luis Eduardo Gallego Vega, Oscar Germán Duarte Velasco
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