| 单相电路的一种谐波和无功电流实时检测方法 |
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| 引用本文： | 耿云玲,王群.单相电路的一种谐波和无功电流实时检测方法[J].国防科技大学学报,2000,22(4):111-115. |
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| 作者姓名： | 耿云玲 王群 |
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| 作者单位： | 国防科技大学炮兵学院,湖南,长沙,410073 |
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| 基金项目： | 国家自然科学基金资助重点项目! ( 59737140 ) |
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| 摘 要： | 提出了一种新的单相电路的谐波和无功电流实时检测方法。它利用三角函数的有关特性 ,对畸变电流中的基波有功和无功电流分量的振幅分别进行计算 ,然后通过低通滤波器把它们分离出来 ,最后得到基波有功和无功电流分量。该方法电路结构简单、动态响应速度快、检测精度高 ;既可得到单独检测出畸变电流中的任何电流分量 ,又能得出谐波和无功电流之和。仿真和实验研究证实了方法的有效性和可行性。
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| 关 键 词： | 畸变电流 谐波和无功电流 低通滤波器 检测方法 |
| 收稿时间： | 2000/1/18 0:00:00 |
Real Time Detection Approach of Harmonic and Reactive Currents for Single-phase Circuit |
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| GENG Yunling and WANG Qun.Real Time Detection Approach of Harmonic and Reactive Currents for Single-phase Circuit[J].Journal of National University of Defense Technology,2000,22(4):111-115. |
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| Authors: | GENG Yunling and WANG Qun |
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| Abstract: | A new approach to real time detection of harmonic and reactive currents for single-phase circuit was proposed. It makes use of some characteristics of triangle functions, and calculates the amplitudes of the fundamental active and the reactive current components in distorted current. Then it separates them from the ac components by low-pass filters. Finally, the fundamental active and the reactive current components were obtained. The circuit configuration of the proposed approach is simple, its dynamic response speed is fast, and its detection precision is high. It can detect any current component in distorted current or the sum of the harmonic and the reactive currents. The simulation and the experimental studies illustrate the performance of the proposed approach. |
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| Keywords: | distorted current harmonic and reactive currents low pass filter detection method |
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