| 基于光纤的位同步通讯纵差保护原理 |
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| 引用本文： | 梁斌,贺家李.基于光纤的位同步通讯纵差保护原理[J].天津理工大学学报,2007,23(5):49-52. |
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| 作者姓名： | 梁斌 贺家李 |
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| 作者单位： | 天津理工大学,自动化学院,天津,300191 |
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| 摘 要： | 结合光通信技术,研究出一套微机保护系统.该系统使用HDLC位同步通信协议,提高了数据传输的可靠性和效率.将一种新的具有优良制动特性的电流差动保护判据,应用到微机分相差动保护装置上,获得了良好的动作特性,使保护的性能得到很大提高.同时,采用采样数据修正法校正了保护两端的正点采样时刻,解决了电流数据不同步的难题.并利用数字锁相环实现了保护双端通信的同步.
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| 关 键 词： | 光纤 采样数据修正 差动保护 |
| 文章编号： | 1673-095X（2007）05-0049-04 |
| 收稿时间： | 2006-10-16 |
| 修稿时间： | 2006年10月16 |
Theory of differential pilot protection based on optical fibre and bit-oriented communication |
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| LIANG Bin,HE Jia-li.Theory of differential pilot protection based on optical fibre and bit-oriented communication[J].Journal of Tianjin University of Technology,2007,23(5):49-52. |
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| Authors: | LIANG Bin HE Jia-li |
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| Institution: | School of Electrical Engineering, Tianjin University of Technology, Tianjin 300191, China |
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| Abstract: | A set of the theory of microprocessor-based protection is researched,combined with the technology of fibre-optic communication.The reliability and efficiency of data transmission is improved by using the HDLC protocol.A new differential protection principle with choiceness character of the brake is applicatted to the microprocessor-based distinguished phase protect device,then a good character of movement has been gotten,and the capability of protection gets great raising.Meanwhile,two-end punctual sampling times are corrected by means of sampling data correction,and the baffling problem of non-synchronization of electrical current data has been solved.At the same time,two-end synchronization of communication is realized by digital phase lock loop. |
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| Keywords: | HDLC |
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