dc.contributor.authorSampath, Lahanda Purage Mohasha Isuru
dc.contributor.authorHotz, M.
dc.contributor.authorGooi, Hoay Beng
dc.contributor.authorUtschick, Wolfgang
dc.identifier.citationSampath, L. P. M. I., Hotz, M., Gooi, H. B., & Utschick, W. (2018). Unit commitment with AC power flow constraints for a hybrid transmission grid. Proceedings of 20th Power Systems Computation Conference.
dc.description.abstractA unit commitment formulation satisfying AC optimal power flow constraints models the resource optimization problem accurately, but is challenging to solve for traditional transmission systems. Integration of generation based on renewable energy sources is often limited by transmission congestion issues in existing grids. For such grids, AC to HVDC conversion schemes are viable and attractive options for capacity expansion. In this respect, we utilize the structural properties of a hybrid AC/HVDC grid architecture with a specific topology to enable an exact mixed integer conic relaxation of the aforementioned problem. The simulation results for the PJM 5-bus system show that the relaxation is exact for the hybrid architecture. Further, it alleviates the network congestion leading to a substantial reduction in generation cost at normal and increased load conditions compared to the reference AC grid. Moreover, the hybrid architecture improves the utilization of the grid to accommodate more demand and generation.en_US
dc.format.extent7 p.en_US
dc.rights© 2018 The Author(s). All rights reserved. This paper was published by 20th Power Systems Computation Conference in Proceedings of 20th Power Systems Computation Conference and is made available with permission of The Author(s).en_US
dc.subjectCapacity Expansionen_US
dc.subjectConvex Relaxationen_US
dc.subjectDRNTU::Engineering::Electrical and electronic engineeringen_US
dc.titleUnit commitment with AC power flow constraints for a hybrid transmission griden_US
dc.typeConference Paper
dc.contributor.conference20th Power Systems Computation Conferenceen_US
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolInterdisciplinary Graduate School (IGS)en_US
dc.description.versionAccepted versionen_US

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