输电线路光纤保护现场应用研究
|
摘要
在超高压输电线路纵联保护中,通道起着十分关键的作用。目前主要应用的是载波通道和光纤通道。高频载波通道受线路故障影响,保护可能误动或拒动。此外,高频载波通道环节多,方式单一,故障隐蔽,使得维护工作量大。而采用光纤通道的保护,避免了高频载波通道的诸多问题,在高压电网中将得到越来越广泛的应用。
本文从高频保护原理介绍出发,对近年来高频保护在运行过程中出现的问题加以分析,重点研究高频载波通道,发现其中的不足,提出技术改造措施,采用光纤通道提高保护运行可靠性。
接着,介绍了光纤保护的特点及光纤通道与继电保护配合的几种方式,分析了光纤通道继电保护具有的优势,重点分析了光纤闭锁式、允许式纵联保护的构成方式,并根据四会变电站220kV线路保护的配置及运行情况提出了220kV线路保护光纤化改造方案。
然后,重点讨论光纤保护在实际应用中可能遇到的问题及其解决方法,并运用在四会变电站线路保护光纤化改造中。
最后,根据220kV四会站综合改造工程制定了220kV会旺线施工改造方案。
Channel as the signal transmission path of the pilot protection of HV and EHV transmission lines plays a very key role. At present, high frequency channel and optical fiber channel are widely used. When line fault occurs, the clear impact on high frequency carrier wave channels may easily result in tripping missing or mal operation of the pilot protection. Moreover, because of multi-links, single mode, and invisibility of fault, therefore the work of maintenance is huge. While the application of fiber protection can avid many problems as described above, and fiber protection is more and more widely used in high-voltage grid.
The article, starting form the principle of high-frequency protection, analyses the main problems in recent years during operation of the high-frequency protection, mainly researches on the high frequency carrier wave channels, points out the shortcomings of these, and provides technical reform measures such as using fiber channel to improve reliability of operation.
Then in this article, the characteristic of pilot protection and the connect ways of optic-fiber channel with relay protection devices is introduced, superiority of fiber-optical protection for the high-frequency protection is analyzed, as well as explained the principles of fiber pilot protections of artesian and allowable. According to the fundamental disposition and the actual operation status of the protection of 220 kV lines in Sihui substation, it put forward the option of reforming.
Later, it focuses on the practical application of optical fiber in the protection of the problems encountered in its solution, and it can be a good guide to the application of fiber protection of 220 kV lines in Sihui substation.
Finally,the plan for reconstruction of 220 kV Huiwang line is provided.
本文从高频保护原理介绍出发,对近年来高频保护在运行过程中出现的问题加以分析,重点研究高频载波通道,发现其中的不足,提出技术改造措施,采用光纤通道提高保护运行可靠性。
接着,介绍了光纤保护的特点及光纤通道与继电保护配合的几种方式,分析了光纤通道继电保护具有的优势,重点分析了光纤闭锁式、允许式纵联保护的构成方式,并根据四会变电站220kV线路保护的配置及运行情况提出了220kV线路保护光纤化改造方案。
然后,重点讨论光纤保护在实际应用中可能遇到的问题及其解决方法,并运用在四会变电站线路保护光纤化改造中。
最后,根据220kV四会站综合改造工程制定了220kV会旺线施工改造方案。
Channel as the signal transmission path of the pilot protection of HV and EHV transmission lines plays a very key role. At present, high frequency channel and optical fiber channel are widely used. When line fault occurs, the clear impact on high frequency carrier wave channels may easily result in tripping missing or mal operation of the pilot protection. Moreover, because of multi-links, single mode, and invisibility of fault, therefore the work of maintenance is huge. While the application of fiber protection can avid many problems as described above, and fiber protection is more and more widely used in high-voltage grid.
The article, starting form the principle of high-frequency protection, analyses the main problems in recent years during operation of the high-frequency protection, mainly researches on the high frequency carrier wave channels, points out the shortcomings of these, and provides technical reform measures such as using fiber channel to improve reliability of operation.
Then in this article, the characteristic of pilot protection and the connect ways of optic-fiber channel with relay protection devices is introduced, superiority of fiber-optical protection for the high-frequency protection is analyzed, as well as explained the principles of fiber pilot protections of artesian and allowable. According to the fundamental disposition and the actual operation status of the protection of 220 kV lines in Sihui substation, it put forward the option of reforming.
Later, it focuses on the practical application of optical fiber in the protection of the problems encountered in its solution, and it can be a good guide to the application of fiber protection of 220 kV lines in Sihui substation.
Finally,the plan for reconstruction of 220 kV Huiwang line is provided.
引文
[1]赵建青,尹相根,陈德树.广东电网光纤保护方案的分析[J].广东电力,2001,14(1):13-16.
[2]张少凡.光纤在继电保护中的应用[J].广东电力,2003,16(4):49-52.
[3]李东升.220kV光纤保护现场应用问题探讨[J].山东电力技术,2009,(1):33-37.
[4]梁小刚.光纤允许式纵联保护的应用研究[D].保定:华北电力大学,2007.
[5]张畅.光纤通道传输继电保护信息技术规范的研究[D].上海:华东师范大学,2006.
[6]陈益.高频及光纤通道在220kV线路保护中的应用[J].云南电力技术,2008,36(6):38-45.
[7]何永波,余年,朱志甫,等.高频通道的组成及其常见故障解决方法[J].电力自动化设备,2007,27(11):111-114.
[8]欧阳青,罗家华.高频通道的运行维护及其故障处理[J].继电器,2002,30(3):56-58.
[9]刘扬,李晓明,曹凯丽.220kV系统高频保护异常运行分析及预防措施[J].电力自动化设备,2005,25(5):98-101.
[10]傅宁涛.几起220kV线路高频通道典型故障的检查与处理[J].电力系统保护与控制,2009,37(14),105-108.
[11]王红光.影响高频保护正常投入的原因分析及对策[J].继电器,2000,28(11):65-66.
[12]贺家李,宋从矩.电力系统继电保护原理[M].北京:中国电力出版社,2004.
[13]李超群,包海龙,陈文升.上海电网继电保护技术的发展回顾与展望[J].华东电力,2008,36(12):46-49.
[14]张利军.光纤通道传送线路保护信号的方式及其分析[J].电力建设,2005,26(6):39-41.
[15]王伟,胡为进.光纤保护在上海电网的应用[J].电力自动化设备,2001,21(9):43-45.
[16]袁启佳.光纤纵联保护的应用[J].东北电力技术,2006,18-20.
[17]石征,侯思祖.光纤保护通道的可靠性分析[J].电力系统通信,2008,29(193):43-45.
[18]吴云,雷雨田.光纤保护通道配置[J].电力系统通信,2003,(9):11-14.
[19]黄红兵,黄丽云.浙江省500kV线路主保护的光纤通道配置探讨[J].电力系统通信,2005,26(151):61-64.
[20]布文哲,董海山,娄华薇.输电线路光纤保护技术的应用及问题分析[J].河北电力技术,2007,26(3):35-38.
[21]李锋,张德泉.浅谈华中电网500kV线路光纤保护的应用[J].华中电力,17(5):34-36.
[22]许西平,王鹏.光纤通道应用于继电保护中的若干问题探讨[J].继电器,2007,35(4):75-78.
[23]姚勇,杨丙权.光纤保护在武汉电网中的应用[J].湖北电力,2002,26(4):48-54.
[24]陈建,李乐生,李长兴,等.光纤通道继电保护的实现及应用中若干问题到的探讨[J].电力设备,2006,7(12):58-62.
[25]李桥,肖新祥,杜庆.光纤保护对复用通道技术的要求分析[J].电网技术,2008,32(2):182-185.
[26]王芊,金华锋,王伟刚,等.光纤保护旁代时的通道切换方案[J].电力系统自动化,2003,27(8):75-77.
[27]欣疆.采用光纤通信后的220kV线路保护配置[J].电力系统自动化,2001,25(17):60-62.
[2]张少凡.光纤在继电保护中的应用[J].广东电力,2003,16(4):49-52.
[3]李东升.220kV光纤保护现场应用问题探讨[J].山东电力技术,2009,(1):33-37.
[4]梁小刚.光纤允许式纵联保护的应用研究[D].保定:华北电力大学,2007.
[5]张畅.光纤通道传输继电保护信息技术规范的研究[D].上海:华东师范大学,2006.
[6]陈益.高频及光纤通道在220kV线路保护中的应用[J].云南电力技术,2008,36(6):38-45.
[7]何永波,余年,朱志甫,等.高频通道的组成及其常见故障解决方法[J].电力自动化设备,2007,27(11):111-114.
[8]欧阳青,罗家华.高频通道的运行维护及其故障处理[J].继电器,2002,30(3):56-58.
[9]刘扬,李晓明,曹凯丽.220kV系统高频保护异常运行分析及预防措施[J].电力自动化设备,2005,25(5):98-101.
[10]傅宁涛.几起220kV线路高频通道典型故障的检查与处理[J].电力系统保护与控制,2009,37(14),105-108.
[11]王红光.影响高频保护正常投入的原因分析及对策[J].继电器,2000,28(11):65-66.
[12]贺家李,宋从矩.电力系统继电保护原理[M].北京:中国电力出版社,2004.
[13]李超群,包海龙,陈文升.上海电网继电保护技术的发展回顾与展望[J].华东电力,2008,36(12):46-49.
[14]张利军.光纤通道传送线路保护信号的方式及其分析[J].电力建设,2005,26(6):39-41.
[15]王伟,胡为进.光纤保护在上海电网的应用[J].电力自动化设备,2001,21(9):43-45.
[16]袁启佳.光纤纵联保护的应用[J].东北电力技术,2006,18-20.
[17]石征,侯思祖.光纤保护通道的可靠性分析[J].电力系统通信,2008,29(193):43-45.
[18]吴云,雷雨田.光纤保护通道配置[J].电力系统通信,2003,(9):11-14.
[19]黄红兵,黄丽云.浙江省500kV线路主保护的光纤通道配置探讨[J].电力系统通信,2005,26(151):61-64.
[20]布文哲,董海山,娄华薇.输电线路光纤保护技术的应用及问题分析[J].河北电力技术,2007,26(3):35-38.
[21]李锋,张德泉.浅谈华中电网500kV线路光纤保护的应用[J].华中电力,17(5):34-36.
[22]许西平,王鹏.光纤通道应用于继电保护中的若干问题探讨[J].继电器,2007,35(4):75-78.
[23]姚勇,杨丙权.光纤保护在武汉电网中的应用[J].湖北电力,2002,26(4):48-54.
[24]陈建,李乐生,李长兴,等.光纤通道继电保护的实现及应用中若干问题到的探讨[J].电力设备,2006,7(12):58-62.
[25]李桥,肖新祥,杜庆.光纤保护对复用通道技术的要求分析[J].电网技术,2008,32(2):182-185.
[26]王芊,金华锋,王伟刚,等.光纤保护旁代时的通道切换方案[J].电力系统自动化,2003,27(8):75-77.
[27]欣疆.采用光纤通信后的220kV线路保护配置[J].电力系统自动化,2001,25(17):60-62.