Basic Study on Islanding Detection Method for PV Systems by Harmonic Impedance Detection in Case of Including Induction Motor in Load System |
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| Authors: | YOSHIAKI YOSHIDA HIROKAZU SUZUKI KOJI FUJIWARA YOSHIYUKI ISHIHARA |
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| Affiliation: | 1. Hiroshima Institute of Technology, Japan;2. University of Tokyo, Japan;3. Doshisha University, Japan |
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| Abstract: | It is important that photovoltaic (PV) systems detect islanding caused by power system faults to ensure electrical safety. Thus we propose a novel islanding detection method which detects the harmonic impedance by injecting harmonic currents synchronized with the exciting current harmonics of the pole transformer. For the case in which an induction motor load is included in the load system, basic experiments on islanding detection and simulation analysis are conducted to verify the effectiveness of the proposed method. |
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| Keywords: | pole transformer islanding detection harmonic impedance detection harmonic voltage detection photovoltaic system single‐phase induction motor |
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