| 用于混合式光电电流互感器的光电传输系统 |
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| 引用本文： | 方志,赵中原,邱毓昌,李双.用于混合式光电电流互感器的光电传输系统[J].电网技术,2003,27(4):43-45,58. |
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| 作者姓名： | 方志 赵中原 邱毓昌 李双 |
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| 作者单位： | 1. 西安交通大学,陕西省,西安市,710049
2. 江苏精科互感器公司,江苏省,宿迁市,223800 |
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| 摘 要： | 设计了一种用于混合式光电电流互感器的光电传输系统，该系统由发射电路、光路和接收电路组成，采用脉冲频率调制的原理对信号进行调制，其带宽为从直流到1．2MHz，输入阻抗为1MΩ，信噪比为38dB。实验结果表明，这种光电传输系统可以和罗柯夫斯基线圈结合组成混合式光电电流互感器，该种互感器有较强的抗电磁干扰能力和较高的测量精度。
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| 关 键 词： | 混合式光电电流互感器 光电传输系统 罗柯夫斯基线圈 电磁干扰 |
| 文章编号： | 1000-3673(2003)04-0043-03 |
AN OPTO-ELECTRIC TRANSMISSION SYSTEM FOR HYBRID OPTICAL CURRENT TRANSFORMER |
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| FANG Zhi,ZHAO Zhong-yuan,QIU Yu-chang,LI Shuang.AN OPTO-ELECTRIC TRANSMISSION SYSTEM FOR HYBRID OPTICAL CURRENT TRANSFORMER[J].Power System Technology,2003,27(4):43-45,58. |
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| Authors: | FANG Zhi ZHAO Zhong-yuan QIU Yu-chang LI Shuang |
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| Affiliation: | FANG Zhi1,ZHAO Zhong-yuan1,QIU Yu-chang1,LI Shuang2 |
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| Abstract: | An opto-electric transmission system, consisting of transmitter, light route and receiver, for hybrid optical current transformer is designed. In this system the signal is modulated by pulse frequency modulation principle. The bandwidth is from DC to 1.2MHz. Its input impedance is 1MW and its signal to noise ratio is 38db. The experimental results show that the presented system can be combined with Rogowski coil to constitute a hybrid opto-electric current transformer which can effectively suppress the electromagnetic interference and possesses high measurement accuracy. |
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| Keywords: | Hybrid optical current transformer Opto-electric transmission system Pulse frequency modulation |
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