A Solution Method for Security Constrained Unit Commitment by Lagrangian Decomposition
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- Mitani Takashi
- Ibaraki University
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- Nara Koichi
- Fukushima Collage of Technology
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- Satoh Yoshihiko
- Tohoku Electric Power Co.
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- Honma Hitoshi
- Tohoku Electric Power Co.
Bibliographic Information
- Other Title
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- ラグランジュ分解によるセキュリティ制約付き発電機起動停止計画問題の解法
- ラグランジュ ブンカイ ニ ヨル セキュリティ セイヤク ツキ ハツデンキ キドウ テイシ ケイカク モンダイ ノ カイホウ
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Abstract
Recently, deregulation of electric power industry became popular in world wide. In Japan, under partially de-regulated power industry, transmission system is operated by a power company. Although operator of the transmission system tries to determine permissions to connect generators owned by IPPs (Independent Power Producer) and PPSs (Power Producer and Supplier) through considering power congestions for typical power flow conditions, operators inevitably face the congestions of the power system when some generators are in fault conditions. In such a case, operators must resolve the congestions re-scheduling generators owned by their own companies and those owned by IPPs and PPSs. This problem can be solved though a Security Constrained Unit Commitment (SCUC). This paper proposes a new solution algorithm for SCUC by using the Lagrangean decomposition. The method decomposes the SCUC problem into two sub-problems. One sub-problem is a decision problem which determines an operational power flow or generation schedules in which security constraints are taken into account. The other is the unit commitment problem with minimum up/down time constraints for all the units. Several numerical examples are shown to demonstrate the algorithm.
Journal
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- IEEJ Transactions on Power and Energy
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IEEJ Transactions on Power and Energy 127 (10), 1080-1086, 2007
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390282679580212992
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- NII Article ID
- 10019959113
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- NII Book ID
- AN10136334
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- BIBCODE
- 2007IJTPE.127.1080M
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- ISSN
- 13488147
- 03854213
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- NDL BIB ID
- 8960191
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed