Sensitivity analysis based on transmission line susceptances for congestion management
| Autor: | Canan Zobi Karatekin, Canbolat Uçak |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Engineering
Power transmission business.industry Energy Engineering and Power Technology Power (physics) Load management Traffic congestion Transmission line Control theory Electronic engineering Sensitivity (control systems) Electrical and Electronic Engineering Line (text file) business Susceptance |
| Zdroj: | Electric Power Systems Research. 78:1485-1493 |
| ISSN: | 0378-7796 |
| Popis: | Transmission line limits impede power transfers and cause congestion greatly reducing the effectiveness of systems and increasing the cost of power transmissions. Through several methods, congestion can be effectively eliminated either by building a new transmission line or by increasing the capacity of the original line between congested zones. Both methods cause susceptance change and line capacity increase between nodes. Therefore, the sensitivity of a system to variations of its parameters becomes important in terms of operation and planning. In this paper, congestion relief as a function of line susceptances and line capacities is investigated. Mathematical derivations for calculating sensitivities based on line susceptances are given systematically, and numerical studies were performed by using sequential quadratic optimization programming to determine congestion in terms of line susceptances. It is shown that the optimum susceptance range becomes critical when the line parameters are changed dynamically by using thyristor-controlled series-compensators. To relieve congestion in the operation of a network may require tracking this optimal parameter range whenever system states change. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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