Type of Document Master's Thesis Author Mitchell-Colgan, Elliott Author's Email Address firstname.lastname@example.org URN etd-12182015-124025 Title Modeling Considerations for the Long-Term Generation and Transmission Expansion Power System Planning Problem Degree Master of Science Department Electrical and Computer Engineering Advisory Committee
Advisor Name Title Virgilio Centeno Committee Chair Jaime De La Ree Committee Member James Thorp Committee Member Keywords
- Load Uncertainty
- Power System Planning
Date of Defense 2015-12-04 Availability unrestricted AbstractJudicious Power System Planning ensures the adequacy of infrastructure to support continuous
reliability and economy of power system operations. Planning processes have a long and
rather successful history in the United States, but the recent inﬂux of unpredictable, nondispatchable
generation such as Wind Energy Conversion Systems (WECS) necessitates the
re-evaluation of the merit of planning methodologies in the changing power system context.
Traditionally, planning has followed a logical progression through generation, transmission,
reactive power, and ﬁnally auxiliary system planning using expertise and ranking schemes.
However, it is challenging to incorporate all of the inherent dependencies between expansion
candidates’ system impacts using these schemes. Simulation based optimization provides a
systematic way to explore acceptable expansion plans and choose one or several ”best” plans
while considering those complex dependencies.
Using optimization to solve the minimum-cost, reliability-constrained Generation and Transmission
Expansion Problem (GTEP) is not a new concept, but the technology is not mature.
This work inspects: load uncertainty modeling; sequential (GEP then TEP) versus uniﬁed
(GTEP) models; and analyzes the impact on the methodologies achieved near-optimal plan.
A sensitivity simulation on the original system and ﬁnal, upgraded system is performed.
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