Computation of Optimal Operation Cost for Deregulated Power Systems
| Autor: | Ming-Yi Chang, 張明宜 |
|---|---|
| Rok vydání: | 2005 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 93 Liberation of the electricity environment has been taking place in many countries. It will bring about significant changes in generation and transmission patterns. The electric power market is gradually opened up from the monopolistic market to the competitive one. Customers will no longer deal with an integrated electric utility, and may get power from various utilities through wheeling. Therefore, study on wheeling costing is getting more and more attention in recent years. This thesis is an attempt to explore the pool operation scenarios, and the problems of power economic dispatch and operation considering power wheeling pricing in the multi-area power system. The economic dispatch problem for multi-area power systems is essentially an optimization problem, which finds optimal power generations to minimize the total cost subject to some constraints. This work attempts to provide the hybrid differential evolution (HDE) method to solve the optimization problem of determining the economic power generations and minimizing the total cost composed of the units fuel cost and the power wheeling cost. The constrains imposed on the optimization model include the power balance, unit generation capacity, and transmission capacity limits. The proposed method requires to determine the available transfer capability (ATC) of the transmission network to judge if the transmission capacity limits are observed. Finally, two example systems are used to demonstrate the proposed method, and to verify the effectiveness of the method. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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