| 1. |
- Mwanza, Kennedy, et al.
(author)
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Economic Evaluation of FACTS for Congestion Management in Pool Markets
- 2007
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In: IEEE PowerTech 2007, Lausanne, Switzerland.
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Conference paper (peer-reviewed)abstract
- This paper deals with congestion problem in the deregulated electricity market using an optimal power flow framework (OPF). The congestion management method considered in this paper is based on a constrained re-dispatch generation schedules which are formed by the market. From the redispatch, the congestion management cost can be evaluated. The paper considers the installation and operation of selected flexible alternating current transmission systems (FACTS) devices in the transmission network in order to alleviate congestion and minimize the amount of active power which have to be redispatched. A cost-benefit analysis to evaluate the economical justification of using FACTS for congestion management is proposed in the paper. The optimal choice of FACTS placement in the network to satisfy the congestion management and the cost-benefit criteria is discussed. The IEEE 14-bus system is used to simulate the market and illustrate the proposed method. The study results show that when FACTS devices are included in the network, the amount of re-dispatched power in the pool is greatly reduced resulting in an optimal operating point closer to that dictated by the market settlement and that FACTS is a viable option for congestion management, from the technical point of view as well as from economical point of view. The FACTS devices considered include the thyristor controlled series capacitor (TCSC) and the thyristor controlled phase angle regulator (TCPAR).
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| 2. |
- Shi, You, 1981, et al.
(author)
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Valuation of FACTS for Managing Congestion in Bilateral Contract Markets
- 2007
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In: IEEE PES General Meeting 2007, Tampa-Florida, 24-28 June 2007.
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Conference paper (peer-reviewed)abstract
- This paper deals with congestion problem in the bilateral dominated electricity markets using redispatch method through a regulation market. In the bilateral market, the interest is to maintain the desired transactions between contracting parties. To solve the arising congestion in this market model, the rescheduled transactions are forced to be as close to the scheduled transactions as possible. The changes to contracts are non-discriminatory, hence only contracts that affect the congestion are modified. It has been found that when FACTS are included in the network, the transactions may not need to be modified. The cost of congestion to the ISO also reduces when FACTS are used. The IEEE 14-bus system is used to simulate the market and illustrate the proposed method. The study results show that FACTS is a viable option for congestion management, from the technical point of view as well as from economical point of view. The FACTS devices considered include the thyristor controlled series capacitor (TCSC) and the thyristor controlled phase angle regulator (TCPAR).
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| 3. |
- Shi, You, 1981, et al.
(author)
-
Valuation of FACTS for Managing Congestion in Combined Pool and Bilateral Contract Electricity Markets
- 2007
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In: IEEE Power Africa 2007: Conference and Exposition - July 16-20, 2007 - Johannesburg, South Africa.
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Conference paper (peer-reviewed)abstract
- This paper deals with congestion problem in the combined pool and bilateral contract markets using redispatch method through a regulation market. In the combined market, a weighting factor is used for the volume traded in the pool and bilateral contract markets. The pool trades could be re-dispatched more than the bilateral transactions and vice versa, depending on the weighting factors. It has been found that when FACTS are included in the network, the amount of re-dispatched power for relieving network congestion in the combined market is greatly reduced resulting in an optimal operating point closer to that dictated by the market settlement. The cost of congestion to the ISO also reduces when FACTS are used. The IEEE 14-bus system is used to simulate the market and illustrate the proposed method. The study results show that FACTS is a viable option for congestion management, from the technical point of view as well as from economical point of view.
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