| ZHANG Jun,SHEN Guo-qiao,HU Chang-sheng,XU De-hong.Intermittent Bilateral Reactive Power Variation Islanding Detection Strategy[J].JOURNAL OF POWER SUPPLY,2011,9(2):7-11 |
| Intermittent Bilateral Reactive Power Variation Islanding Detection Strategy |
| Received:January 06, 2011 Revised:January 15, 2011 |
| View Full Text View/Add Comment Download reader |
| DOI：10.13234/j.issn.2095-2805.2011.2.7 |
| Keywords:grid-connected inverter islanding reactive power variation none detection zone |
| Fund Project:The National High Technology Research and Development Program of China (863 Program) |
| Author | Institution | Email |
| ZHANG Jun |
Institute of Power Electronics, College of Electrical Engineering, Zhejiang University |
zjuzj@zju.edu.cn |
| SHEN Guo-qiao |
Institute of Power Electronics, College of Electrical Engineering, Zhejiang University |
shenguoqiao@zju.edu.cn |
| HU Chang-sheng |
Institute of Power Electronics, College of Electrical Engineering, Zhejiang University |
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| XU De-hong |
Zhejiang University,College of Electrical Engineering,Institute of Power Electronics |
xdh@zju.edu.cn |
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| Abstract: |
| Islanding detection is an essential function of distributed grid-connected power generation systems, as the islanding occurrence is unpredictable and very harmful. The voltage and frequency of the constant-power controlled grid-connected inverter working in the islanding state has been studied. The none detection zone (NDZ) is calculated when the output of the inverter has reactive power. Then, intermittent bilateral reactive power variation anti-islanding strategy was proposed. The conditions to eliminate NDZ are presented and the variation parameters are designed. Finally, experiments results indicate that the proposed method could meet requirement and has little influence on power factor. |
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