| Real-Time Method for Detecting Harmonic and Reactive Currents of Single-Phase Circuits |
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| 作者姓名： | 张秀峰 丁菊霞 |
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| 作者单位： | Emei Campus, Southwest Jiaotong University, Emeishan 614202, China |
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| 摘 要： | According to the characteristics of single-phase circuits and demand of using active filter for real-time detecting harmonic and reactive currents, a detecting method based on Fryze＇s power definition is proposed. The results of theoretical analysis and simula- tion show that the proposed method is effective in realtime detecting of instantaneous harmonic and reactive currents in single-phase circuits. When only detecting the total reactive currents, this method does not need a phase-locked loop circuit, and it also can be used in some special applications to provide different compensations on the ground of different requirements of electric network. Compared with the other methods based on the theory of instantaneous reactive power, this method is simple and easy to realize.
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| 关 键 词： | 检测方法 反馈反应 电流 模拟技术 |
| 文章编号： | 1005-2429（2006）02-0135-07 |
| 收稿时间： | 2005-03-18 |
Real-Time Method for Detecting Harmonic and Reactive Currents of Single-Phase Circuits |
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| Zhang Xiufeng,Ding Juxia.Real-Time Method for Detecting Harmonic and Reactive Currents of Single-Phase Circuits[J].Journal of Southwest Jiaotong University,2006,14(2):135-141. |
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| Authors: | Zhang Xiufeng Ding Juxia |
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| Abstract: | According to the characteristics of single-phase circuits and demand of using active filter for real-time detecting harmonic and reactive currents, a detecting method based on Fryze's power definition is proposed. The results of theoretical analysis and simulation show that the proposed method is effective in real-time detecting of instantaneous harmonic and reactive currents in single-phase circuits. When only detecting the total reactive currents, this method does not need a phase-locked loop circuit, and it also can be used in some special applications to provide different compensations on the ground of different requirements of electric network. Compared with the other methods based on the theory of instantaneous reactive power, this method is simple and easy to realize. |
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| Keywords: | Active filter Harmonic Reactive current Real-time detection Single-phase circuit Electric-network |
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