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Measurement and Analysis of PCC Voltage Variation in a Wind-Diesel Hybrid System - A Case Study in Sapsi Island - Paper
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| Author(s) |
Ji-Hoon Im, Seung-Ho Song, Eel-Hwan Kim |
| Abstract |
A 10kW wind turbine is installed and its output is connected to an isolated power grid, which is supplied by a local power plant with diesel generators in the Sapsi-island in Korea. As part of an experimental program to evaluate wind turbine generator performance on the isolated diesel power system, the measured voltage data and simulation results are compared and analyzed to mitigate the voltage variation problem which was one of the most important issues for the application of high penetration wind farm in an isolated grid. A simplified simulation model using PSCAD/EMTDC and a T-equivalent circuit model of the local power system is developed and evaluated using the field measurement data of the voltage variation during the wind power generation. The proposed T-equivalent circuit model is very simple and helpful to predict the voltage variation at the PCC (point of common coupling) according to the location of the WECS and the load change when the rating of WECS is decided. The most important parameters are the power rating of the WECS and the line-side effective impedance which is decided by the location of WECS installation in the network. |
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| Filename: | Unnamed file |
| Filesize: | 785.9 KB |
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| Type |
Members Only |
| Date |
Last modified 2009-12-08 by System |
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