CN1310445C - 用于继电保护的不需插拔的光纤通道多路分接装置 - Google Patents

用于继电保护的不需插拔的光纤通道多路分接装置 Download PDF

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CN1310445C
CN1310445C CNB2004100496304A CN200410049630A CN1310445C CN 1310445 C CN1310445 C CN 1310445C CN B2004100496304 A CNB2004100496304 A CN B2004100496304A CN 200410049630 A CN200410049630 A CN 200410049630A CN 1310445 C CN1310445 C CN 1310445C
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徐刚
伍叶凯
陈秋荣
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Beijing Sifang Engineering Co Ltd
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Beijing Sifang Automation Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses

Abstract

本发明公开了一种用于继电保护的不需插拔的光纤通道多路分接装置，该装置包括：多个光电转换模块，该转换模块与逻辑处理单元连接，用于将接收到的光信号转换为送至逻辑处理单元的电信号和将来自逻辑处理单元的电信号转换为发出去的光信号；一个逻辑处理单元，该逻辑处理单元包括两个多路选通模块和一个指示信号发生模块，并与所述的多个光电转换模块连接，用于在选通控制信号的控制下选择需要进行光纤传输的通道；一个控制和显示单元，该控制和显示单元与逻辑处理单元连接，用于产生选通控制信号，并通过显示单元进行显示。本发明的装置将线路侧和旁路侧光纤事先引入，当旁路带线路时通过按键选择通道，使得旁路保护可以和对侧保护装置通讯。不用插拔光纤，在将光信号转换为电信号、再将电信号转换为光信号的过程中，可以对经光纤通道传输后产生的光功率损耗进行补偿。

Description

用于继电保护的不需插拔的光纤通道多路分接装置
技术领域
本发明涉及用于继电保护的装置，更具体地涉及用于继电保护的光纤通道的信道分接装置。
背景技术
在电力系统继电保护及自动化领域，利用光纤通道构成输电线路纵联电流差动保护或实现安全自动装置的远距离信息交换，已经被广泛应用，电网运行中用旁路开关带线路开关时，需要切换光纤通道的情况也越来越多。目前，在电力系统现场，光纤通道切换的实现方法主要有：插拔尾纤法、光开关切换法、PCM时隙切换法、光纤盒接线法。
1、插拔尾纤法是一种比较早出现的光通道切换方法，是通过将连接到装置的光纤(一般是尾纤)，从该装置光通道上取下，连接到需要切换的装置上去的一种方法。该方法需要人工插拔光纤，现在仍有很多场合使用该方法。
2、光纤盒接线法其实是由插拔尾纤法改变过来的。设计了一种光纤盒，将准备切换的装置的光纤(尾纤)都连接到该光纤盒的一侧。光纤盒另一侧用来短接，需要连接两个装置时，在这一侧用光纤短接上。
3、光开关切换法使用光开关来实现。光开关是光传输线路转换器件，有机械式和非机械式两类。这种方法由于工艺和技术上的限制，还处于实验室阶段，尚未达到普及使用的阶段，且价格十分昂贵，尚无使用的实例。
4、PCM时隙切换法通过重新设置通信软件，将分配给原来装置的时序分配给目的装置，实现通道的再分配。这种方案需要通信人员的配合，并且只能适用于复用PCM的光纤保护。目前还没有通过该方案实现的实例。
插拔尾纤和光纤盒接线法都采用手动机械式切换光缆，在这两种操作方式下，每次切换通道均需要人工插拔光纤，操作复杂，易发生操作错误；插拔光纤时容易造成光纤接头损伤，使得光纤对接不准，光纤传输不正常，极致需要更换光纤或光纤转接头；每次拔插光纤后，均需要进行光信号测试以检验通道是否接通和光功率测试以检验光衰耗是否正常，过程烦琐，而且均需要现场准备光通道检测设备。
发明内容
本发明的目的在于克服上述现有技术存在的缺陷，提出一种用于继电保护的不需插拔的光纤通道多路分接装置。所述的用于继电保护的不需插拔的光纤通道多路分接装置是通过如下的技术方案实现的，所述的装置包括：
多个光电转换模块，该转换模块与逻辑处理单元连接，用于将接收到的光信号转换为送至逻辑处理单元的电信号和将来自逻辑处理单元的电信号转换为发出去的光信号；
一个逻辑处理单元，该逻辑处理单元包括两个多路选通模块和一个指示信号发生模块，并与所述的多个光电转换模块连接，用于在选通控制信号的控制下选择需要进行光纤传输的通道；
一个控制和显示单元，该控制和显示单元与逻辑处理单元连接，用于产生选通控制信号，并通过显示单元进行显示。
本发明的一种用于继电保护的不需插拔的光纤通道多路分接装置将线路侧和旁路侧光纤事先引入，当旁路带线路时通过按键选择通道，使得旁路保护可以和对侧保护装置通讯。不用插拔光纤，在将光信号(输入)转换为电信号、再将电信号转换为光信号(输出)的过程中，可以对经光纤通道传输后产生的光功率损耗进行补偿。
附图说明
图1是本发明的光纤通道多路分接装置的构成方框图；
图2是图1中逻辑处理单元的构成示意图；
图3是本发明的光纤通道多路分接装置使用方式示意图；
图4是本发明的光纤通道多路分接装置采用级联的方式示意图。
具体实施方式
图1是本发明的光纤通道多路分接装置的构成方框图。如图1所示，所述的用于继电保护的不需插拔的光纤通道多路分接装置是通过如下的技术方案实现的，所述的装置包括：
多个光电转换模块，该转换模块与逻辑处理单元连接，用于将接收到的光信号转换为送至逻辑处理单元的电信号和将来自逻辑处理单元的电信号转换为发出去的光信号；
一个逻辑处理单元，该逻辑处理单元包括两个多路选通模块和一个指示信号发生模块，并与所述的多个光电转换模块连接，用于在选通控制信号的控制下选择需要进行光纤传输的通道；
一个控制和显示单元，该控制和显示单元与逻辑处理单元连接，用于产生选通控制信号，并通过显示单元进行显示。
本发明所涉及的光纤通道均指双向通道，即每个通道都有收、发两根光纤。本发明的主要思想是将光信号转换为电信号，根据通道的选择开关，在电信号中进行通道分配，然后再转换为光信号。根据光信号的要求选择光电转换模块。显示单元的指示灯由光电模块给出，以表明相应的通道正在传输光信号，同时也指示哪个通道被选中。如图1所示，其中多个光电转换模块的光收发模贫“光电转换模块No1”～“光电转换模块NO8”是将NO1～NO8等8个通道的光信号转换为电信号，并将这些电信号连接到装置内部的逻辑处理单元上，“光电转换模块N11”是将N11这1个通道的光信号转换为电信号连接到内部逻辑处理单元上。控制和显示单元中KO1～KO8是表示控制单元的8个拨码开关，Lo1～LO8为显示单元的8个发光二极管，KO1～KO8、LO1～LO8均布置在面板上，它们和NO1至NO8这8个通道相对应。当欲将NO1～NO8中的某个通道和N11这个通道连接时，只需将该通道相对应的拨码开关打在“ON”的位置，其余通道相对应的开关打在“OFF”的位置即可。当该通道和N11通道导通的后，LO1～LO8中和其对应的发光二极管就会发光。
图2是图1中逻辑处理单元的构成示意图。如图2所示，逻辑处理单元采用当前先进的大规模集成电路EPLD(Erasable Progmmable Logic Device：可擦写可编程逻辑处理单元)。在该逻辑处理单元中，设计了两个多路选通模块和一个指示信号发生模块，如图2所示。该指示信号发生模块为显示单元提供显示的信号，对于NO1～NO8和N11这九个通道，每个通道同逻辑处理单元有三个信号连接，收信号、发信号和无光信号，收信号和发信号分别由各个光电转换模块的光收和光发转变成的电信号，无光信号为光电转换模块传来指示该模块是否工作的一个信息。多路选通模块MUXI为收多路选通，其一端连接NO1～NO8各个通道的收，一端连接N11通道的发，根据装置传来的KO1～KO8的位置信息来进行选通收通道，而多路选通装置MUXZ2，则负责NO1～NO8的发通道，功能同MUXI。
图3是本发明的光纤通道多路分接装置的使用方式示意图。继电保护装置Z11通过本设计“光纤通道多路分接装置”和继电保护装置ZO1～ZO8通讯。继电保护装置Z11、ZO1～ZO8的光纤通道的收发分别和本发明的“光纤通道多路分接装置”的N11、No1～NO8光纤通道的收发连接。当光纤通道多路分接装置面板上通过KO1～KO8选择某个通道Noi(i＝1～8)时，继电保护装置Z11就与继电保护装置ZO1～ZO8中的ZOi(i＝1～8)进行通讯。
图4是本发明的光纤通道多路分接装置采用级联方式的示意图。如图4所示，当多于被选通的继电保护装置多于8个的时候，可以采用级联的方式进行扩充。图4中光纤通道多路分接装置GO1和GO2是两个完全相同的光纤通道多路分接装置，ZO1～ZO15为欲被选通的继电保护装置，而Z11是要和ZO1～ZO15中的某一个需要选通的。设计Z11连接在GO1的N11通道上，ZO1～ZO7连接在GO1的NO1～NO7上，用于级联的GO2通过其本身的N11连接到GO1的NO8通道上，ZO8～ZO15连接到GO2的NO1～NO8通道上。当Z11需要和ZO1～ZO7装置中的某个通讯时，将其对应的拨码开关KO1～KO7打在“ON”的位置，GO1上的其他拨码开关打在“OFF”的位置。GO2装置的拨码开关可以不用设置。如Z11欲和ZO8～ZO15的某个装置ZOi(i＝8～15)通讯时，将GO1的KO8打在“ON”位置，GO1的其余拨码开关打在“OFF”位置，同时GO2上的于ZOi相对应的拨码开关打在“ON″位置，GO2上的其他拨码开关打在“OFF”位置。

Claims (1)

1、一种用于继电保护的不需插拔的光纤通道多路分接装置，其特征在于，所述的装置包括：
多个光电转换模块，该转换模块与逻辑处理单元连接，用于将接收到的光信号转换为送至逻辑处理单元的电信号和将来自逻辑处理单元的电信号转换为发出去的光信号；
一个逻辑处理单元，该逻辑处理单元包括两个多路选通模块和一个指示信号发生模块，并与所述的多个光电转换模块连接，用于在选通控制信号的控制下选择需要进行光纤传输的通道；
一个控制和显示单元，该控制和显示单元与逻辑处理单元连接，用于产生选通控制信号，并通过显示单元进行显示。
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US8831406B2 (en) 2002-11-20 2014-09-09 Lg Electronics Inc. Recording medium having data structure for managing reproduction of at least video data recorded thereon and recording and reproducing methods and apparatuses
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US7809775B2 (en) 2003-02-27 2010-10-05 Lg Electronics, Inc. Recording medium having data structure for managing playback control recorded thereon and recording and reproducing methods and apparatuses
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