CN107645332A - Circuit relay protection service channel and its method of work in a kind of power telecom network - Google Patents
Circuit relay protection service channel and its method of work in a kind of power telecom network Download PDFInfo
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Abstract
本发明公开了一种电力通信网中线路继电保护业务通道及其工作方法；继电保护业务通道，包括：第一光纤线路自动切换保护装置和第二光纤线路自动切换保护装置；所述第一光纤线路自动切换保护装置与第一继电保护装置连接，所述第二光纤线路自动切换保护装置与第二继电保护装置连接，所述第一光纤线路自动切换保护装置通过主用保护支路与第二光纤线路自动切换保护装置连接，所述一光纤线路自动切换保护装置还通过备用保护支路与第二光纤线路自动切换保护装置连接；所述第一光纤线路自动切换保护装置将第一继电保护装置的继电保护信号一分为二，通过主用保护支路和备用保护支路传输，实现光路1+1保护。
The invention discloses a line relay protection service channel in an electric power communication network and a working method thereof; the relay protection service channel includes: a first optical fiber line automatic switching protection device and a second optical fiber line automatic switching protection device; the first optical fiber line automatic switching protection device; An optical fiber line automatic switching protection device is connected to the first relay protection device, the second optical fiber line automatic switching protection device is connected to the second relay protection device, and the first optical fiber line automatic switching protection device passes through the main protection branch The first optical fiber line automatic switching protection device is connected to the second optical fiber line automatic switching protection device through a backup protection branch; the first optical fiber line automatic switching protection device connects the first optical fiber line automatic switching protection device The relay protection signal of a relay protection device is divided into two and transmitted through the main protection branch and the backup protection branch to realize 1+1 protection of the optical path.
Description
技术领域technical field
本发明涉及一种电力通信网中线路继电保护业务通道及其工作方法。The invention relates to a line relay protection service channel in an electric power communication network and a working method thereof.
背景技术Background technique
随电网的快速发展，变电站电力线出线方向逐年增加，山东公司辖内500kV及以上变电站出线方向平均数量超过4条。而目前山东公司500kV线路继电保护主要通过2M复用方式传输，每条继电保护装置需配套配置1套2M MUX的设备，这一方面在保护装置和通信设备间增加了1个故障风险环节，同时2M复用设备会大量占用的通信机房空间，影响通信设备、系统的扩容能力。With the rapid development of the power grid, the outgoing directions of substation power lines are increasing year by year, and the average number of outgoing outgoing directions of 500kV and above substations within the jurisdiction of Shandong Company exceeds 4. At present, the relay protection of Shandong Company's 500kV line is mainly transmitted through 2M multiplexing, and each relay protection device needs to be equipped with a set of 2M MUX equipment. On the one hand, a fault risk link is added between the protection device and the communication equipment , At the same time, 2M multiplexing equipment will occupy a large amount of space in the communication equipment room, affecting the expansion capabilities of communication equipment and systems.
发明内容Contents of the invention
本发明的目的就是为了解决上述问题，提供一种电力通信网中线路继电保护业务通道及其工作方法，它在实现继电保护信号直接接入SDH设备的同时，实现2M光接口板卡1+1保护，提高保护业务的生存性。The purpose of the present invention is to solve the above problems, and to provide a line relay protection service channel and its working method in the electric power communication network, which realizes the 2M optical interface card 1 while realizing the direct access of the relay protection signal to the SDH equipment. +1 Protection, improves the survivability of the protection business.
为了实现上述目的，本发明采用如下技术方案：In order to achieve the above object, the present invention adopts the following technical solutions:
一种电力通信网中线路继电保护业务通道，包括：第一光纤线路自动切换保护装置和第二光纤线路自动切换保护装置；A line relay protection service channel in a power communication network, comprising: a first optical fiber line automatic switching protection device and a second optical fiber line automatic switching protection device;
所述第一光纤线路自动切换保护装置与第一继电保护装置连接，The first optical fiber line automatic switching protection device is connected to the first relay protection device,
所述第二光纤线路自动切换保护装置与第二继电保护装置连接，The second optical fiber line automatic switching protection device is connected to the second relay protection device,
所述第一光纤线路自动切换保护装置通过主用保护支路与第二光纤线路自动切换保护装置连接，The first optical fiber line automatic switching protection device is connected to the second optical fiber line automatic switching protection device through the main protection branch,
所述一光纤线路自动切换保护装置还通过备用保护支路与第二光纤线路自动切换保护装置连接；The first optical fiber line automatic switching protection device is also connected to the second optical fiber line automatic switching protection device through a backup protection branch;
所述第一光纤线路自动切换保护装置将第一继电保护装置的继电保护信号一分为二，通过主用保护支路和备用保护支路传输，实现光路1+1保护。The first optical fiber line automatic switching protection device divides the relay protection signal of the first relay protection device into two, and transmits it through the main protection branch and the backup protection branch to realize 1+1 protection of the optical path.
所述主用保护支路，包括：串联的第一SDH光传输设备和第二SDH光传输设备；The active protection branch includes: first SDH optical transmission equipment and second SDH optical transmission equipment connected in series;
所述备用保护支路，包括：串联的第三SDH光传输设备和第四SDH光传输设备。The standby protection branch includes: third SDH optical transmission equipment and fourth SDH optical transmission equipment connected in series.
第一SDH光传输设备与第一光纤线路自动切换保护装置连接；The first SDH optical transmission equipment is connected to the first optical fiber line automatic switching protection device;
第二SDH光传输设备与第二光纤线路自动切换保护装置连接；The second SDH optical transmission equipment is connected to the second optical fiber line automatic switching protection device;
第三SDH光传输设备与第一光纤线路自动切换保护装置连接；The third SDH optical transmission equipment is connected to the first optical fiber line automatic switching protection device;
第四SDH光传输设备与第二光纤线路自动切换保护装置连接。The fourth SDH optical transmission equipment is connected to the second optical fiber line automatic switching protection device.
第一SDH光传输设备配置：第一SDH光传输设备中的2M光接口的激光器设置为自动关闭状态；如果第一SDH光传输设备至第二SDH光传输设备的光路发生中断，则第一SDH光传输设备上的2M光接口板的输出激光器同步中断。Configuration of the first SDH optical transmission equipment: the laser of the 2M optical interface in the first SDH optical transmission equipment is set to automatically shut down; if the optical path from the first SDH optical transmission equipment to the second SDH optical transmission equipment is interrupted, the first SDH The output laser synchronization of the 2M optical interface board on the optical transmission equipment was interrupted.
第三SDH光传输设备配置：第三SDH光传输设备中的2M光接口的激光器设置为自动关闭状态，如果第三SDH光传输设备至第四SDH光传输设备的光路发生中断，则第三SDH光传输设备上的2M光接口板的输出激光器同步中断。Configuration of the third SDH optical transmission equipment: the laser of the 2M optical interface in the third SDH optical transmission equipment is set to automatically shut down, if the optical path from the third SDH optical transmission equipment to the fourth SDH optical transmission equipment is interrupted, the third SDH optical transmission equipment The output laser synchronization of the 2M optical interface board on the optical transmission equipment was interrupted.
第一SDH光传输设备和第二SDH光传输设备之间的光路采用MSP保护，第一SDH光传输设备和第二SDH光传输设备的2M光接口板卡激光器均配置为自动关闭，同时与第一SDH光传输设备和第二SDH光传输设备之间的2M传输通道状态关联。The optical path between the first SDH optical transmission equipment and the second SDH optical transmission equipment adopts MSP protection, and the 2M optical interface board lasers of the first SDH optical transmission equipment and the second SDH optical transmission equipment are configured to automatically shut down, and at the same time they are connected to the second SDH optical transmission equipment. A 2M transmission channel status association between an SDH optical transmission device and a second SDH optical transmission device.
第三SDH光传输设备和第四SDH光传输设备的光路采用MSP保护，第三SDH光传输设备和第四SDH光传输设备的2M光接口板卡激光器均配置为自动关闭，同时与第三SDH光传输设备和第四SDH光传输设备之间的2M传输通道状态关联。The optical paths of the third SDH optical transmission equipment and the fourth SDH optical transmission equipment adopt MSP protection, and the 2M optical interface board lasers of the third SDH optical transmission equipment and the fourth SDH optical transmission 2M transmission channel status association between the optical transmission equipment and the fourth SDH optical transmission equipment.
所述第一继电保护装置通过FC-LC尾纤与第一光纤线路自动切换保护装置连接；The first relay protection device is connected to the first optical fiber line automatic switching protection device through the FC-LC pigtail;
所述第二继电保护装置通过FC-LC尾纤与第二光纤线路自动切换保护装置连接；The second relay protection device is connected to the second optical fiber line automatic switching protection device through the FC-LC pigtail;
所述第一SDH光传输设备和第二SDH光传输设备之间通过LC-LC尾纤连接，并开通MSP保护；所述第一SDH光传输设备和第二SDH光传输设备之间开通1条2M传输通道，用于传输继电保护业务。The first SDH optical transmission equipment and the second SDH optical transmission equipment are connected through LC-LC pigtails, and MSP protection is enabled; one line is opened between the first SDH optical transmission equipment and the second SDH optical transmission equipment 2M transmission channel, used to transmit relay protection services.
所述第三SDH光传输设备和第四SDH光传输设备之间通过LC-LC尾纤连接，并开通MSP保护；所述第三SDH光传输设备和第四SDH光传输设备之间开通1条2M传输通道，用于传输继电保护业务。The third SDH optical transmission equipment and the fourth SDH optical transmission equipment are connected through LC-LC pigtails, and MSP protection is enabled; the third SDH optical transmission equipment and the fourth SDH optical transmission equipment are activated with one 2M transmission channel, used to transmit relay protection services.
所述第一、第二继电保护装置均为纵差继电保护装置，输出为光接口，速率为2048kbits，满足ITU-T的E1速率接口标准，输出接口采用FC端口。The first and second relay protection devices are longitudinal differential relay protection devices, the output is an optical interface, the rate is 2048kbits, which meets the E1 rate interface standard of ITU-T, and the output interface adopts FC port.
所述第一光纤线路自动切换保护装置和第二光纤线路自动切换保护装置均为机架形式，均配置光切换接口板卡，均包括6个端口分别为T、R、T1、R1、T2、R2。Both the first optical fiber line automatic switching protection device and the second optical fiber line automatic switching protection device are in the form of racks, both of which are equipped with optical switching interface boards, and each includes 6 ports respectively T, R, T1, R1, T2, R2.
第一继电保护装置通过T和R接口装置接入第一光纤线路自动切换保护装置，继电保护信号被第一光纤线路自动切换保护装置分成2路；第一光纤线路自动切换保护装置的T1和R1端口分别接入第一SDH光传输设备的2M光接口板；第一光纤线路自动切换保护装置的T2和R2端口分别接入第三SDH光传输设备的2M光接口板。第一光纤线路自动切换保护装置的分光比例为97:3，第一光纤线路自动切换保护装置的T1和R1为主用。The first relay protection device is connected to the first optical fiber line automatic switching protection device through the T and R interface devices, and the relay protection signal is divided into two paths by the first optical fiber line automatic switching protection device; T1 of the first optical fiber line automatic switching protection device The T2 and R1 ports of the first optical fiber line automatic switching protection device are respectively connected to the 2M optical interface board of the third SDH optical transmission equipment. The splitting ratio of the first optical fiber line automatic switching protection device is 97:3, and T1 and R1 of the first optical fiber line automatic switching protection device are mainly used.
同样的，第二继电保护装置通过T和R接口装置接入第二光纤线路自动切换保护装置，继电保护信号被第二光纤线路自动切换保护装置分成2路；第二光纤线路自动切换保护装置的T1和R1端口分别接入第二SDH光传输设备的2M光接口板；第二光纤线路自动切换保护装置的T2和R2端口分别接入第四SDH光传输设备的2M光接口板。第二光纤线路自动切换保护装置的分光比例为97:3，第二光纤线路自动切换保护装置的T1和R1为主用。Similarly, the second relay protection device is connected to the second optical fiber line automatic switching protection device through the T and R interface devices, and the relay protection signal is divided into two paths by the second optical fiber line automatic switching protection device; the second optical fiber line automatic switching protection device The T1 and R1 ports of the device are respectively connected to the 2M optical interface board of the second SDH optical transmission equipment; the T2 and R2 ports of the second optical fiber line automatic switching protection device are respectively connected to the 2M optical interface board of the fourth SDH optical transmission equipment. The light splitting ratio of the second optical fiber line automatic switching protection device is 97:3, and T1 and R1 of the second optical fiber line automatic switching protection device are mainly used.
一种电力通信网中线路继电保护业务通道的工作方法，包括：A working method for a line relay protection service channel in a power communication network, comprising:
步骤(1)：第一继电保护装置发出继电保护信号；Step (1): The first relay protection device sends out a relay protection signal;
步骤(2)：第一光纤线路自动切换保护装置将继电保护信号一分为二，分别通过并联的主用保护支路和备用保护支路传输给第二光纤线路自动切换保护装置；Step (2): The first optical fiber line automatic switching protection device divides the relay protection signal into two, and transmits them to the second optical fiber line automatic switching protection device through the parallel main protection branch and the backup protection branch respectively;
所述主用保护支路，包括：串联的第一SDH光传输设备和第二SDH光传输设备；第一SDH光传输设备中的2M光接口的激光器设置为自动关闭状态；如果第一SDH光传输设备至第二SDH光传输设备的光路发生中断，则第一SDH光传输设备上的2M光接口板的输出激光器同步中断；The main protection branch includes: the first SDH optical transmission equipment and the second SDH optical transmission equipment in series; the laser of the 2M optical interface in the first SDH optical transmission equipment is set to an automatic shutdown state; if the first SDH optical transmission When the optical path from the transmission equipment to the second SDH optical transmission equipment is interrupted, the output laser of the 2M optical interface board on the first SDH optical transmission equipment is interrupted synchronously;
所述备用保护支路，包括：串联的第三SDH光传输设备和第四SDH光传输设备；第三SDH光传输设备中的2M光接口的激光器设置为自动关闭状态，如果第三SDH光传输设备至第四SDH光传输设备的光路发生中断，则第三SDH光传输设备上的2M光接口板的输出激光器同步中断；The backup protection branch includes: the third SDH optical transmission equipment and the fourth SDH optical transmission equipment in series; the laser of the 2M optical interface in the third SDH optical transmission equipment is set to an automatic shutdown state, if the third SDH optical transmission If the optical path from the equipment to the fourth SDH optical transmission equipment is interrupted, the output laser of the 2M optical interface board on the third SDH optical transmission equipment will be interrupted synchronously;
如果主用保护支路中断，则启用备用保护支路；进入步骤(3)；If the main protection branch is interrupted, then enable the backup protection branch; enter step (3);
步骤(3)：第二光纤线路自动切换保护装置将信号传输给第二继电保护装置。Step (3): The second optical fiber line automatic switching protection device transmits the signal to the second relay protection device.
英文解释：English explanation:
OLP(Optical Fiber Line Auto Switch Protection Equipment)--光纤线路自动切换保护装置。OLP (Optical Fiber Line Auto Switch Protection Equipment)--Optical Fiber Line Auto Switch Protection Equipment.
本发明的有益效果：Beneficial effects of the present invention:
1SDH设备2M光接口被引入继电业务传输中，但由于线路保护由单个SDH板卡承载，一旦板卡故障将导致继电保护业务中断，因此本发明拟通过光纤线路自动切换保护装置实现SDH板卡1+1互备，提高继电保护通道的生存性。1. The 2M optical interface of SDH equipment is introduced into the relay service transmission, but since the line protection is carried by a single SDH board card, once the board card fails, the relay protection service will be interrupted. Therefore, the present invention intends to realize the SDH board through the optical fiber line automatic switching protection device. Card 1+1 mutual backup, improve the survivability of the relay protection channel.
2本发明涉及一种电力通信网中线路继电保护业务通道传输方式，包括传输通道连接方式和SDH设备保护方式。采用该方式可以有效的保障继电保护业务通道的可靠性。2. The present invention relates to a transmission mode of a line relay protection service channel in an electric power communication network, including a transmission channel connection mode and an SDH equipment protection mode. This method can effectively guarantee the reliability of the relay protection service channel.
3在2M光接口卡传输继电保护通道系统的基础上，在两侧增加光纤线路自动切换保护装置，将继电保护信号一分为二，通过2个不同的2M光接口板传输，提高业务的生存性。3 On the basis of the 2M optical interface card transmission relay protection channel system, an automatic switching protection device for optical fiber lines is added on both sides, and the relay protection signal is divided into two, which are transmitted through two different 2M optical interface boards to improve service survivability.
4采用光纤线路自动切换保护装置OLP将光路1分为2，实现光路1+1保护。4. The optical fiber line automatic switching protection device OLP is used to divide the optical path 1 into 2 to realize the optical path 1+1 protection.
附图说明Description of drawings
图1设备的组网图。Figure 1 is the network diagram of the equipment.
具体实施方式detailed description
下面结合附图与实施例对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
如图1所示，图中包括继电保护装置、OLP装置、SDH设备3部分组成。继电保护装置通过(FC-LC)尾纤接入OLP装置。OLP装置通过自身光切换设备，将光路一份为二，分别接入2套SDH设备。SDH设备包括4套，分别为SDH-1至SDH-4，其中SDH-1和SDH-2通过4根尾纤(LC-LC)互联，并开通MSP保护，SDH-3和SDH-4通过4根尾纤(LC-LC)互联，并开通MSP保护。SDH-1和SDH-2之间开通1条2M通道，SDH-3和SDH-4开通1条2M通道。As shown in Figure 1, it consists of three parts: relay protection device, OLP device, and SDH equipment. The relay protection device is connected to the OLP device through the (FC-LC) pigtail. The OLP device divides the optical path into two through its own optical switching equipment, and connects to two sets of SDH equipment respectively. SDH equipment includes 4 sets, respectively SDH-1 to SDH-4, among which SDH-1 and SDH-2 are interconnected through 4 pigtails (LC-LC), and MSP protection is enabled, SDH-3 and SDH-4 are connected through 4 pigtails Fiber (LC-LC) interconnection, and enable MSP protection. A 2M channel is opened between SDH-1 and SDH-2, and a 2M channel is opened between SDH-3 and SDH-4.
继电保护装置为目前常用的纵差继电保护装置，输出为光接口，速率为2048kbits，满足ITU-T的E1速率接口标准。其输出接口采用FC端口，通过(FC-LC)尾纤接入OLP装置。The relay protection device is a commonly used vertical differential relay protection device at present, the output is an optical interface, and the rate is 2048kbits, which meets the E1 rate interface standard of ITU-T. Its output interface adopts FC port, which is connected to OLP device through (FC-LC) pigtail.
OLP装置为光纤线路自动切换保护装置，为机架形式，配置光切换接口板卡，包括6个端口分别为T、R、T1、R1、T2、R2。继电保护装-1置通过T和R接口装置接入OLP设备，被分成2路，T1和R1端口分别接入SDH-1的2M光接口板。T2和R2端口分别接入SDH-3的2M光接口板。继电保护装-2的接入方式类似。分光比例为97:3，其中T1和R1为主用。The OLP device is an automatic switching protection device for optical fiber lines, in the form of a rack, equipped with an optical switching interface board, including 6 ports respectively T, R, T1, R1, T2, R2. The relay protection device-1 is connected to the OLP equipment through the T and R interface devices, and is divided into 2 routes, and the T1 and R1 ports are respectively connected to the 2M optical interface board of SDH-1. The T2 and R2 ports are respectively connected to the 2M optical interface board of SDH-3. The connection method of relay protection device-2 is similar. The light splitting ratio is 97:3, among which T1 and R1 are mainly used.
SDH设备包括4套，分别为SDH-1至SDH-4，其中SDH-1和SDH-2通过4根尾纤(LC-LC)互联，并开通MSP保护，SDH-3和SDH-4通过4根尾纤(LC-LC)互联，并开通MSP保护。SDH-1至SDH-2及SDH-3至SDH-4分别开通1条2M传输通道，用于传输继电保护业务。SDH equipment includes 4 sets, respectively SDH-1 to SDH-4, among which SDH-1 and SDH-2 are interconnected through 4 pigtails (LC-LC), and MSP protection is enabled, SDH-3 and SDH-4 are connected through 4 pigtails Fiber (LC-LC) interconnection, and enable MSP protection. SDH-1 to SDH-2 and SDH-3 to SDH-4 each open a 2M transmission channel for the transmission of relay protection services.
SDH设备配置如下，SDH中的2M光接口其激光器设置为自动关闭状态，并在SDH设备上设置为，一旦SDH-1至SDH-2的光路发生中断，设备上的2M光接口板输出激光器同步中断。SDH-3和SDH-4设备做同样的配置。The configuration of SDH equipment is as follows. The laser of the 2M optical interface in SDH is set to automatically shut down, and it is set on the SDH equipment so that once the optical path from SDH-1 to SDH-2 is interrupted, the output laser of the 2M optical interface board on the equipment is synchronized. interruption. Do the same configuration for SDH-3 and SDH-4 equipment.
通过该种配置，可以在SDH设备2M光接口板故障或者SDH设备主干光路故障的情况下，有效的保障继电保护业务通道的可靠性。Through this configuration, the reliability of the relay protection service channel can be effectively guaranteed when the SDH equipment 2M optical interface board fails or the SDH equipment backbone optical path fails.
上述虽然结合附图对本发明的具体实施方式进行了描述，但并非对本发明保护范围的限制，所属领域技术人员应该明白，在本发明的技术方案的基础上，本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围以内。Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.
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| CN110854824A (en) * | 2019-08-27 | 2020-02-28 | 国网山东省电力公司信息通信公司 | Method and device for monitoring availability of relay protection service of power communication network |
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