CN109379265B - Intelligent station span interval protection system based on HSR ring network and implementation method - Google Patents
Intelligent station span interval protection system based on HSR ring network and implementation method Download PDFInfo
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- CN109379265B CN109379265B CN201811379190.7A CN201811379190A CN109379265B CN 109379265 B CN109379265 B CN 109379265B CN 201811379190 A CN201811379190 A CN 201811379190A CN 109379265 B CN109379265 B CN 109379265B
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000008569 process Effects 0.000 claims abstract description 25
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 22
- 241000272814 Anser sp. Species 0.000 claims description 10
- 239000013307 optical fiber Substances 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims 1
- 230000006855 networking Effects 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L2012/421—Interconnected ring systems
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Small-Scale Networks (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to an intelligent station span interval protection system based on an HSR ring network, which comprises a protection device, a merging unit, an intelligent terminal and a measurement and control device, wherein the protection device, the merging unit, the intelligent terminal and the measurement and control device are sequentially connected to form the HSR single-ring bidirectional ring network. According to the intelligent station inter-interval protection system and method based on the HSR ring network, merging units, intelligent terminals, measurement and control devices and inter-interval protection HSR ring network ports at the same interval are subjected to ring network connection according to interval grouping, so that a plurality of single-ring bidirectional ring networks are formed. The network architecture of the process layer is looped network by the HSR technology, and the normal operation of all devices in the looped network is not influenced by single-point network faults, so that the reliability of the inter-interval protection action behavior can be effectively improved; and network switches are not adopted for networking, so that the networking cost is low. The networking mode is performed according to the interval grouping, the network structure is clear, the equipment is clear, and the on-site operation and maintenance are facilitated.
Description
Technical Field
The invention relates to the field of relay protection of power systems, in particular to an intelligent station span interval protection implementation method based on an HSR ring network.
Background
In recent years, intelligent substations are rapidly developing, and standard and reliable node support is provided for intelligent power grids. At present, the inter-interval protection (such as bus protection and transformer protection) in the intelligent substation mostly adopts a direct sampling and direct tripping mode, namely, the SV of the merging unit is directly connected to a protection device through an optical fiber, and a GOOSE tripping signal of the protection device is directly connected to an intelligent terminal through the optical fiber to trip. The optical fiber connection in the direct-picking and direct-jumping mode is single optical fiber connection, redundancy is avoided, the damage of the single optical fiber can cause misoperation or refusal of the protection device, and the reliability is low.
The high availability seamless ring network (HSR) is a ring network typical application based on parallel redundancy technology, and further realizes high reliability and seamless redundancy of network communication on a ring topology structure. The HSR technology is applied to the inter-interval protection process layer networking, so that the reliability of data transmission of the inter-interval protection process layer can be effectively improved. The HSR technology realizes the networking of the bidirectional ring network without depending on a network switch, thereby greatly reducing the networking cost while ensuring the reliability. Therefore, the realization of the inter-interval protection process layer networking scheme by adopting the HSR technology has great significance for improving the reliability of the inter-interval protection of the intelligent station.
Disclosure of Invention
In order to overcome the problems that the span interval protection adopts a direct picking and direct jumping mode, single optical fibers are connected, redundancy is avoided, misoperation or refusal operation of a protection device can be caused by damage of the single optical fibers, and reliability is low. The invention provides an intelligent station span interval protection system based on an HSR ring network, which adopts the following technical scheme:
the intelligent station span interval protection system based on the HSR ring network comprises a protection device, a merging unit, an intelligent terminal and a measurement and control device, wherein the protection device, the merging unit, the intelligent terminal and the measurement and control device are sequentially connected to form the HSR single-ring bidirectional ring network.
The intelligent station span interval protection system based on the HSR ring network provided by the invention carries out ring network connection on merging units, intelligent terminals, measurement and control devices and span interval protection HSR ring network ports at the same interval to form a plurality of single-ring bidirectional ring networks. The HSR ring network architectures are clear in network structure, data among the ring networks are not affected, and data transmission in the ring networks is reliable.
Preferably, the protection device comprises a process layer, one end of the process layer of the protection device is connected with the merging unit, the other end of the process layer of the protection device is connected with the measurement and control device, and the process layer module and the intelligent terminal receive signals in the ring network.
Preferably, the signals include SV and GOOSE signals.
Preferably, the SV and GOOSE signals are transmitted bidirectionally in the ring network, the protection device can receive the SV signals bidirectionally through the ring network, and the intelligent terminal can receive the GOOSE signals bidirectionally through the ring network. Therefore, the single-point network failure does not affect the normal operation of all devices in the ring network, and the reliability of the inter-interval protection action behavior can be effectively improved.
The invention also provides an intelligent station span interval protection implementation method based on the HSR ring network, which comprises the following steps:
s10, grouping according to intervals, and dividing a merging unit, an intelligent terminal, a measurement and control device and a transformer protection device of the same voltage level into one interval;
s20: the same interval protection device, the merging unit, the intelligent terminal and the measurement and control device are sequentially connected to form a plurality of HSR single-ring bidirectional ring networks;
and S30, the protection device monitors and measures the inside of the HSR single-ring bidirectional ring network, and realizes the sampling function and the control function through a process layer.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
according to the intelligent station inter-interval protection system and the implementation method based on the HSR ring network, merging units, intelligent terminals, measurement and control devices and inter-interval protection HSR ring network ports at the same interval are subjected to ring network connection according to interval grouping, so that a plurality of single-ring bidirectional ring networks are formed. The network architecture of the process layer is looped network by the HSR technology, and the normal operation of all devices in the looped network is not influenced by single-point network faults, so that the reliability of the inter-interval protection action behavior can be effectively improved; and network switches are not adopted for networking, so that the networking cost is low. The networking mode is performed according to the interval grouping, the network structure is clear, the equipment is clear, and the on-site operation and maintenance are facilitated.
Drawings
FIG. 1 is a diagram of a single interval cross-interval protection process layer HSR single ring bidirectional ring network structure;
fig. 2 is a diagram of a structure of an HSR single-ring bidirectional ring network of a cross-interval protection process layer with N intervals.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, which are only for illustration and not to be construed as limitations of the present patent. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
Embodiment 1, as shown in fig. 1 to 2, an intelligent station span interval protection system based on an HSR ring network comprises a protection device, a merging unit, an intelligent terminal and a measurement and control device, wherein the protection device, the merging unit, the intelligent terminal and the measurement and control device are sequentially connected to form the HSR single-ring bidirectional ring network.
The intelligent station span interval protection system based on the HSR ring network provided by the invention carries out ring network connection on merging units, intelligent terminals, measurement and control devices and span interval protection HSR ring network ports at the same interval to form a plurality of single-ring bidirectional ring networks. The HSR ring network architectures are clear in network structure, data among the ring networks are not affected, and data transmission in the ring networks is reliable.
Preferably, the protection device comprises a process layer, one end of the process layer of the protection device is connected with the merging unit, the other end of the process layer of the protection device is connected with the measurement and control device, and the process layer module receives the digital signals in the ring network.
Preferably, the signals include SV and GOOSE signals.
Preferably, the SV and GOOSE signals are transmitted bidirectionally in the ring network, the protection device can receive the SV signals bidirectionally through the ring network, and the intelligent terminal can receive the GOOSE signals bidirectionally through the ring network.
The invention also provides an intelligent station span interval protection implementation method based on the HSR ring network, which comprises the following steps:
s10, grouping according to intervals, and dividing a merging unit, an intelligent terminal, a measurement and control device and a transformer protection device of the same voltage level into one interval;
s20: the same interval protection device, the merging unit, the intelligent terminal and the measurement and control device are sequentially connected to form a plurality of HSR single-ring bidirectional ring networks;
and S30, the protection device monitors and measures the inside of the HSR single-ring bidirectional ring network, and realizes the sampling function and the control function through a process layer.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (1)
1. The intelligent station span interval protection system based on the HSR ring network is characterized by comprising a protection device, a merging unit, an intelligent terminal and a measurement and control device, wherein the protection device, the merging unit, the intelligent terminal and the measurement and control device are sequentially connected to form the HSR single-ring bidirectional ring network;
the method for realizing the intelligent station span interval protection system based on the HSR ring network specifically comprises the following steps:
s10, grouping according to intervals, and dividing a merging unit, an intelligent terminal, a measurement and control device and a transformer protection device of the same voltage level into one interval;
s20: the same interval protection device, the merging unit, the intelligent terminal and the measurement and control device are sequentially connected to form a plurality of HSR single-ring bidirectional ring networks;
s30, the protection device monitors and measures the inside of the HSR single-ring bidirectional ring network, and realizes a sampling function and a control function through a process layer;
the protection device comprises a CPU, a protection DSP, a starting DSP, a process layer module, an IO module, a power module and a device backboard bus, wherein the CPU, the protection DSP, the starting DSP, the process layer module, the IO module and the power module all perform data interaction through the device backboard bus, and the process layer module is connected with the ring network at the same time;
one end of the process layer module is connected with the merging unit, the other end of the process layer module is connected with the measurement and control device, and the process layer module and the intelligent terminal receive signals in the ring network; the signals include SV and GOOSE signals;
the process layer module is provided with 8 HSR ports, and each pair of optical fiber ports and devices with various voltage levels form an HSR single-ring bidirectional ring network structure;
the merging unit, the intelligent terminal and the measurement and control device in the same single-ring bidirectional HSR ring network are of the same voltage level;
the SV and GOOSE signals are transmitted in the ring network in a bidirectional mode, the protection device can receive the SV signals in the bidirectional mode through the ring network, and the intelligent terminal can receive the GOOSE signals in the bidirectional mode through the ring network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811379190.7A CN109379265B (en) | 2018-11-19 | 2018-11-19 | Intelligent station span interval protection system based on HSR ring network and implementation method |
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| CN201811379190.7A CN109379265B (en) | 2018-11-19 | 2018-11-19 | Intelligent station span interval protection system based on HSR ring network and implementation method |
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| CN109379265A CN109379265A (en) | 2019-02-22 |
| CN109379265B true CN109379265B (en) | 2023-12-22 |
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| CN111030910A (en) * | 2019-12-20 | 2020-04-17 | 国网上海市电力公司 | Method and system for monitoring communication state of ring network node, measurement and control device and local module |
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