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Research Papers: Energy Conversion/Systems

An Optimization Framework for Decision Making in Large, Collaborative Energy Supply Systems

[+] Author and Article Information
Bryony DuPont, Scott Proper, Christopher Hoyle

School of Mechanical, Industrial, and
Manufacturing Engineering,
Oregon State University,
Corvallis, OR 97331

Ridwan Azam, Eduardo Cotilla-Sanchez

School of Electrical Engineering and Computer Science,
Oregon State University,
Corvallis, OR 97331

Joseph Piacenza

Mechanical Engineering,
California State University,
Fullerton, CA 92834

Danylo Oryshchyn, Stephen E. Zitney, Stephen Bossart

National Energy Technology Laboratory,
Morgantown, WV 26507

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received October 25, 2015; final manuscript received January 13, 2016; published online February 22, 2016. Assoc. Editor: Kau-Fui Wong.This work is in part a work of the U.S. Government. ASME disclaims all interest in the U.S. Government's contributions.

J. Energy Resour. Technol 138(5), 051601 (Feb 22, 2016) (8 pages) Paper No: JERT-15-1399; doi: 10.1115/1.4032521 History: Received October 25, 2015; Revised January 13, 2016

As demand for electricity in the U.S. continues to increase, it is necessary to explore the means through which the modern power supply system can accommodate both increasing affluence (which is accompanied by increased per-capita consumption) and the continually growing global population. Though there has been a great deal of research into the theoretical optimization of large-scale power systems, research into the use of an existing power system as a foundation for this growth has yet to be fully explored. Current successful and robust power generation systems that have significant renewable energy penetration—despite not having been optimized a priori—can be used to inform the advancement of modern power systems to accommodate the increasing demand for electricity. This work explores how an accurate and state-of-the-art computational model of a large, regional energy system can be employed as part of an overarching power systems optimization scheme that looks to inform the decision making process for next generation power supply systems. Research scenarios that explore an introductory multi-objective power flow analysis for a case study involving a regional portion of a large grid will be explored, along with a discussion of future research directions.

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References

Figures

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Fig. 1

Two-stage optimization framework

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Fig. 2

Western interconnection, including OR/WA subset [18]

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Fig. 4

The nominal load distribution at each of the 200 buses with loads in the SubOR/WA data set. Some loads are negative, indicating an input of power at that bus. The leftmost ten loads (boxed) were chosen as control variables and are shown in more detail in Fig. 5.

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Fig. 5

The best solution found for the SubOR/WA data, compared to the nominal load. On average, 9.7% of the load was shed at each bus.

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Fig. 6

The nominal load distribution at each of the 1761 buses with loads in the OR/WA data set. As with the SubOR/WA data set, some loads are negative, and the leftmost ten loads (boxed) were chosen as control variables and may be seen in more detail in Fig. 7.

Grahic Jump Location
Fig. 7

The best solution found for the OR/WA data set, compared to the nominal load. On average, 10.3% of the load was shed at each bus.

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