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Modeling of Nonlinear Magnetizing Characteristics of Pole Transformer for Analyzing Islanding Prevention of Photovoltaic System |
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| Authors: | Yoshiaki Yoshida Hirokazu Suzuki Koji Fujiwara Yoshiyuki Ishihara |
| Affiliation: | 1. Doshisha University, Japan;2. The University of Tokyo, Japan |
| Abstract: | With increasing penetration of distributed generators such as photovoltaic (PV) systems in distribution systems, it is very important to quickly detect islanding caused by power system faults in order to assure electrical safety. We have developed a nonlinear magnetizing characteristics model of pole transformers for use in analyzing islanding prevention in PV systems. Basic experiments on the islanding detection were performed for verification of the proposed model. Analytical results obtained by the proposed model agreed well with experimental results. |
| Keywords: | pole transformer nonlinear magnetizing characteristics islanding prevention harmonic voltage detection photovoltaic system distributed generator |