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An HPC Based real-time path rating Calculation Tool for Congestion Management with High Penetration of Renewable Energy

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CSEE Journal of Power and Energy Systems 2017年第4期3卷 431-439页

作者： Ruisheng Diao Zhenyu Huang Yuri V.Makarov Yousu Chen Bruce Palmer Shuangshuang Jin James Wong Pacific Northwest National Laboratory RichlandWA 99352USA Pacific Northwest National Laboratory SeattleWA 98109USA Bonneville Power Administration(BPA) SpokaneWA99201USA

Every year, transmission congestion costs billions ofdollars for electricity customers. This clearly identifies the criticalneed for more transmission capacity and also poses big challengesfor power grid reliability in stressed conditions due to heavyloading and in uncertain situations due to variable renewableresources and responsive smart loads. However, it becomesincreasingly difficult to build new transmission lines, whichtypically involve both economic and environmental *** this paper, advanced computing techniques are developedto enable a non-wire solution that realizes unused transfercapabilities of existing transmission facilities. An integratedsoftware prototype powered by high-performance computing(HPC) is developed to calculate ratings of key transmission pathsin real time for relieving transmission congestion and facilitatingrenewable integration, while complying with the North AmericanElectric Reliability Corporation (NERC) standards on assessingtotal transfer capabilities. The innovative algorithms include: (1)massive contingency analysis enabled by dynamic load balancing,(2) parallel transient simulation to speed up single dynamicsimulation, (3) a non-iterative method for calculating voltagesecurity boundary and (4) an integrated package consideringall NERC required limits. This tool has been tested on realisticpower system models in the Western Interconnection of NorthAmerica and demonstrates satisfactory computational speedusing parallel computers. Various benefits of real-time path ratingare investigated at Bonneville Power Administration using realtime EMS snapshots, demonstrating a significant increase in pathlimits. These technologies would change the traditional goals ofpath rating studies, fundamentally transforming how the grid isoperated, and maximizing the utilization of national transmissionassets, as well as facilitating integration of renewable energy andsmart loads.

关键词： real-time path rating high performance computing total transfer capability transmission congestion voltage stability transient stability massive contingency analysis

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