Transaction Scheduling Considering Transmission Network Constrains in Regional Electricity Market


East China Regional Electricity Market, the first regional electricity market in China, will adopt the structure of Broker spot market combined with bilateral contracts. The conventional transactions scheduling method of using Broker-matching algorithm cannot obtain optimal economic benefit with considering network constraints. This paper proposes a new transaction scheduling method of considering network constraints directly. With introducing the generation contribution factor and load-extracting factor, the problem of coordination of multi-level electricity market is solved. In consideration of the characteristic of bilateral transaction, a mathematical model is established for transaction scheduling in Broker trading system of regional electricity market with transaction matrix as a mathematical representation. The results of the test on IEEE 30 bus system show that the model corresponds with the features of Broker trading mode without considering network constraints, and can obtain optimal economic benefit with considering network constraints. The effectiveness of the method is proved.


Electrical and Computer Engineering

Keywords and Phrases

Algorithms; Constraint Theory; Mathematical Models; Scheduling; Broker Trading System; Congestion Management; Transaction Matrix; Transaction Scheduling; Transaction Transfer Distribution Factor; Electric Power Systems

International Standard Serial Number (ISSN)


Document Type

Article - Journal

Document Version


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© 2002 Automation of Electric Power Systems Press, All rights reserved.

Publication Date

01 Nov 2002

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