Using Tap - setting of ParallelTransformer for Reactive Power and Voltage Control of Power System
| Autor: | Chien - Gwo Hsieh, 謝建國 |
|---|---|
| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 Due to the city landscape and the public request, a large numbers of the traditions overhead lines have been replaced by the underground cables. However, the effect on the underground cables results in producing the substantial reactive power, and the over-voltage situation sometimes occurs in power system. In order to solve this problem, the reactive power control equipment is usually needed to install for the improvement. Therefore, this thesis presents the adjustment of the tap setting of two parallel transformers within the different positions, instead of the investment cost. The result can bring about the circulating current so as to produce the additional reactive power, and then the surplus reactive power in power system can be absorbed in the hope that the voltage control is achieved. Based on the equivalent circuit of the parallel transformers, the formula of the reactive power loss attributing to the different loads and tap settings is deduced in this thesis. The consumed reactive power which is absorbed by parallel transformers is verified that the parallel transformers have the advantage of placing the shunt reactors. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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