Journal Name:
- Istanbul University Journal of Electrical & Electronics Engineering
Abstract (2. Language):
Transmission expansion planning provides an essential measure for long-term congestion
management. Congestion-driven planning method becomes one of the new challenges under
deregulated environment. With POOL transaction pattern being the basic investigation background,
the fuzzy congestion management models for bilateral auction market mode and single-buyer market
mode are set up first in this paper. The soft constraints of line power flow limits, and market
participants’ bidding curve coefficients considering possible strategic bidding, are all described in
form of fuzzy membership functions. Second, based on the maximum membership rule and maximum
entropy principle, the fuzzy optimal congestion management problem is solved. New sensitivity
indexes to select to-be-built or to-be-upgraded lines are defined for the two market modes
respectively. They describe the compromise between congestion relieving impact and investments, and
make the problem of transmission network planning solved fast, simple and heuristic. Test results
illustrates that the fuzzy congestion-driven and sensitivity analysis based heuristic transmission
network planning method for POOL transaction pattern presented by this paper is robust and
practical under the deregulated environment.
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FULL TEXT (PDF):
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