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Congestion-driven transmission planning considering incentives for generator investments
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Date
2008
Author
Tör, Osman Bülent
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This thesis study focuses on transmission expansion planning (TEP) problem for restructured power systems and addresses challenges specifically in countries where electricity market is in developing phase after liberalization of power industry for establishing a competitive market, like Turkey. A novel multi-year TEP approach is developed which considers generation investment cost and transmission congestion level in the planning horizon. The model assesses the impact of generation investments on TEP problem. Benders decomposition methodology is utilized successfully to decompose the complex mixed-integer programming TEP problem into a master problem and two subproblems. Security subproblem assesses single-contingency criteria. Transmission congestion cost is considered within operational subproblem given that congestion level is a proper criterion for measuring competitiveness level of an electricity market. The proposed approach is applied to the Turkish power system. The proposed approach could be utilized to provide indicative plans, which might be quite necessary particularly during development of a competitive market. However, there is no guarantee that independent power producers (IPPs) will follow those plans which concern the maximization of social-welfare. Given the necessity of coordinating monopoly transmission and decentralized generator investment decisions, the proposed approach is improved further to include promoting decentralized generator investments through incentive payments. Such incentives might be necessary to trigger IPPs earlier than their projections, as illustrated by numerical examples including IEEE 30-bus system.
Subject Keywords
Electrical engineering.
,
Mathematical analysis.
URI
http://etd.lib.metu.edu.tr/upload/12609625/index.pdf
https://hdl.handle.net/11511/18288
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Graduate School of Natural and Applied Sciences, Thesis
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O. B. Tör, “Congestion-driven transmission planning considering incentives for generator investments,” Ph.D. - Doctoral Program, Middle East Technical University, 2008.