CN104967533B - Increase the method and apparatus that IEC 61850 configures interface on a kind of SDN controllers - Google Patents

Increase the method and apparatus that IEC 61850 configures interface on a kind of SDN controllers Download PDF

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Publication number
CN104967533B
CN104967533B CN201510275151.2A CN201510275151A CN104967533B CN 104967533 B CN104967533 B CN 104967533B CN 201510275151 A CN201510275151 A CN 201510275151A CN 104967533 B CN104967533 B CN 104967533B
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sdn
sdn controllers
network
unit
interface
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CN104967533A (en
Inventor
喻强
虞跃
黄辉
刘川
郭经红
张刚
梁云
黄治
陶静
王向群
刘世栋
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State Grid Corp of China SGCC
State Grid Shanghai Electric Power Co Ltd
Smart Grid Research Institute of SGCC
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State Grid Corp of China SGCC
State Grid Shanghai Electric Power Co Ltd
Smart Grid Research Institute of SGCC
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/06Arrangements for maintenance or administration or management of packet switching networks involving management of faults or events or alarms
    • H04L41/0631Alarm or event or notifications correlation; Root cause analysis
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/50Network service management, i.e. ensuring proper service fulfillment according to an agreement or contract between two parties, e.g. between an IT-provider and a customer
    • H04L41/508Network service management, i.e. ensuring proper service fulfillment according to an agreement or contract between two parties, e.g. between an IT-provider and a customer based on type of value added network service under agreement
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing packet switching networks
    • H04L43/08Monitoring based on specific metrics

Abstract

Increase the method and apparatus that IEC 61850 configures interface on a kind of SDN controllers, including:Such as there is abnormal automatic transmission alarm signal in SDN controller self-tests;The interchanger in intelligent substation is searched for, establishes network topology, and initialized;Function mapping is carried out to SDN controllers according to IEC61850 communication requirements;Define the operating mode of SDN controllers;SDN controller northbound interfaces are modeled;The unified management and control for realizing all IED equipment of intelligent substation simplifies communication system and consistency operation flow, thus greatly improves work efficiency.

Description

Increase the method and apparatus that IEC 61850 configures interface on a kind of SDN controllers
Technical field
The present invention relates to technical field of electric power, and in particular to increases IEC 61850 on a kind of SDN controllers and configures interface Method and apparatus.
Background technology
Software defined network (Software Defined Network, SDN) is a kind of new network of Emulex network innovation framework, is passed through Its core technology OpenFlow separates network equipment control plane with data surface, to realize the flexible control of network flow System.
Intelligent substation with whole station information digitalization, is led to using advanced, reliable, integrated, low-carbon, the smart machine of environmental protection Letter platform network, information sharing are standardized as basic demand, be automatically performed information collection, measurement, control, protection, metering and The copies functions such as monitoring;And can according to actual needs, support power grid automatically control in real time, intelligence adjusting, on-line analysis decision, Cooperate with the substation of the Premium Features such as interaction.It is based on IEC61850 standards, embodies integrated, information standardization, association With interactive feature.
SDN controllers are introduced into intelligent substation, traditional Ethernet switch networking side is substituted using SDN network Formula has the advantage that:(a) procotol focuses on, and is conducive to the operation efficiency and convergence rate that improve complex protocol, can Solve the problems, such as the looped network self-healing in substation;(b) centralization controlled is conducive to allocate transmission bandwidth etc. from more macroscopical angle Internet resources improve the utilization ratio of resource;(c) workload of operation management is simplified, O&M expense is substantially saved;And it improves The access safety of network.
However current SDN controllers northbound interface generally uses REST API Calls forms, and not yet form unified mark It is accurate.Therefore, how to be realized on background computer while meeting power system operation custom and interchanger, protection and observing and controlling etc. are set Standby to be monitored jointly, becoming has problem to be solved.
Invention content
To solve the above-mentioned problems, the present invention proposes to increase the method that IEC 61850 configures interface on a kind of SDN controllers And device, it solves in intelligent substation monitoring network while two kinds of communication protocols and two sets of monitoring systems is in the presence of, guarantee The uniformity of whole station communication protocol.
The purpose of the present invention is what is realized using following technical proposals:
Increase the method that IEC 61850 configures interface on a kind of SDN controllers, the method includes:
(1) such as there is abnormal automatic transmission alarm signal in SDN controllers self-test;
(2) interchanger in intelligent substation is searched for, establishes network topology, and initialized;
(3) function mapping is carried out to SDN controllers according to IEC61850 communication requirements;
(4) operating mode of SDN controllers is formulated;
(5) SDN controller northbound interfaces are modeled.
Preferably, the step (3) includes, by the bus and port in IEC61850 specifications, being mapped as SDN controllers The network of north orientation connection and port;And by the sub- bus mapping in intelligent substation be subnet;
Three layer of two Network Communication system of 61850 standards of IEC is mapped as two networks and multiple subnets again, and imports IED Node link information;According to transformer substation communication business need, the port communication of the IED is set as SDN network midpoint pair The unicast channel of point or the multicast channel of point-to-multipoint;The multicast channel is two layers or L3 Switching.
Preferably, the step (4) formulates the operating mode of SDN controllers, including automatic switch mode, manual configuration mould Formula and other optional functions;Wherein, the automatic switch mode is debugged for the process of substation;The manual configuration pattern is used The operation of substation after completing to debug;Other optional functions include Premium Features and broadcast storm control function;
The Premium Features can selectively unlock;For realizing the monitoring of link protection change and network flow.
Further, the interchanger of SDN controller any region data forwarding layers is configured to two layers or three layers from turn Hair pattern;After opening two layers of automatic forwarding, the message of non-successful match in openflow flow tables is reported to SDN controls by interchanger Device, and target MAC (Media Access Control) address is searched by the SDN controllers;If do not hit, by message broadcasting and source address port is recorded, It stores to SDN controller look-up tables;If hit, issues openflow flow tables forward-path to interchanger;
After opening three layers of automatic forwarding, the SDN controllers learn to complete structure and the inquiry of IP route table by ARP, And openflow flow table issuances are converted into the Forwarding plane of interchanger.
Further, the manual configuration pattern includes:REST API letters are called using the northbound interface of SDN controllers Number, opens unicast, multicast link channel.
Preferably, the specific steps of step (5) modeling include:
Step 501:The northbound interface of SDN controllers is resolved into several logical nodes, then the logical node is merged into Logical device;
Step 502:The logical device is described using the Schema patterns of SCL language, including data frame head is retouched It states, substation describes, IED ability descriptions and communication system describe;
Step 503:According to Abstract Common Service Interface, SDN controllers letter is built by way of CLIENT/SERVER MODEL Cease model;
Step 504:It is mapped according to specific communication service, using MMS mapping methods by the information of SDN controller information models Mobile agent server protocol stack is converted to, is mapped in specific procotol.
Further, the SDN controller informations model includes client model and server model;The client model is used In intercept from IEC 61850 configure client service request;The server model is exchanged for Generic Substation Event Service, i.e. system event distribution between an IED and multiple remote I ED and sampled measurement transmission.
Increase the device that IEC 61850 configures interface on a kind of SDN controllers, including:
Function execution module is used for the network management of SDN controllers;
Function mapping block, for carrying out function mapping to function execution module according to IEC61850 communication requirements;
MMS Network Interface Modules are mapped to specific procotol for function mapping block to be converted to mobile agent server protocol stack On.
Preferably, the function execution module, including switch management unit, terminal management unit, flow table administrative unit, Routing forwarding administrative unit and statistic unit;
Wherein, the switch management unit is used to manage the data forwarding plane of interchanger;
The terminal management unit is for managing the host and measure and control device accessed in SDN network;
The northbound interface of the flow table administrative unit supports open flow agreements, for externally providing REST api interfaces;
The routing forwarding administrative unit is used for the foundation and maintenance of forward-path;
The statistic unit is used to counting and analyzing the message on forward-path.
Preferably, the function mapping block, including model information unit, internal storage location, access unit and indexing units;
Wherein, the model information unit is used for the foundation of SDN controller information models;
The internal storage location is used to access the data of SDN controller information models;
The access unit is used to access the state of the internal storage location;
The indexing units search for target MAC (Media Access Control) address for call function pointer.
Compared with prior art, the advantageous effect that the present invention reaches is:
1. SDN networking technologys are introduced intelligent substation, traditional ethernet interchanger is overcome on controlled not Foot;Centralized control is carried out to Forwarding plane interchanger by SDN controllers, improves reliability, the maintainability of substation network And safety.
2. being modeled again by the northbound interface to SDN controllers, all IED equipment for realizing intelligent substation are unified Management and control.Simplify communication system and consistency operation flow.
3. controller is suitable for each using the multi-configurations such as " automatic " and " manual " pattern and optional basic/Premium Features The substation network of kind level, and can flexibly be enabled for different scenes.Wherein, " automatic " pattern can be in substation The device debugging stage uses, and ensures the perforation of network, is easy to verify the interconnection of IED devices;After debugging, " hand can be switched to It is dynamic " pattern, IED internet datas are imported, substation network channel is locked, safety is improved.
Description of the drawings
Fig. 1 is the SDN controller configuration method flow charts in intelligent substation;
Fig. 2 is IEC61850 information model structural schematic diagrams;
Fig. 3 is SDN controller architecture schematic diagrames;
Fig. 4 is the intelligent substation network architecture diagram based on SDN;
Specific implementation mode
The specific implementation mode of the present invention is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1, increase the method that IEC 61850 configures interface on a kind of SDN controllers, the method includes:
(1) such as there is abnormal automatic transmission alarm signal in SDN controllers self-test;
(2) interchanger in intelligent substation is searched for, establishes network topology, and initialized;
(3) function mapping (as shown in Figure 2) is carried out to SDN controllers according to IEC61850 communication requirements;It includes:It will Bus in IEC61850 specifications and port are mapped as network (Network) and the port of the connection of SDN controller north orientations (Port);And by the sub- bus mapping in intelligent substation be subnet (Subnet);
Three layer of two Network Communication system of 61850 standards of IEC is mapped as two networks and multiple subnets again, and imports IED Node link information;According to transformer substation communication business need, the port communication of the IED is set as SDN network midpoint pair The unicast channel of point or the multicast channel of point-to-multipoint;The multicast channel exchanges for two layers (L2) or three layers (L3).Its In, IEC61850-8-1 uses IP-based unicast communication manner, the GOOSE/SV of IEC61850-9-1 and IEC61850-9-2 Using the multicast transmission based on MAC.
(4) operating mode of SDN controllers is formulated;The step (4) formulates the operating mode of SDN controllers, including certainly Dynamic switch mode, manual configuration pattern and other optional functions;Wherein, the automatic switch mode is used for the process tune of substation Examination;The manual configuration pattern is used to complete the operation of substation after debugging;Other optional functions include Premium Features and Broadcast storm control function;
The Premium Features can selectively unlock;For realizing the monitoring of link protection change and network flow.
The automatic switch mode includes:The interchanger of SDN controller any region data forwarding layers is configured to two layers Or three layers of automatic forward mode;After opening two layers of automatic forwarding, interchanger is by the message of non-successful match in openflow flow tables SDN controllers are reported to, and target MAC (Media Access Control) address is searched by the SDN controllers;If do not hit, by message broadcasting and remember Record source address port, storage to SDN controller look-up tables;If hit, openflow flow tables forward-path is issued to exchange Machine;
After opening three layers of automatic forwarding, the SDN controllers learn to complete structure and the inquiry of IP route table by ARP, And openflow flow table issuances are converted into the Forwarding plane of interchanger.
The manual configuration pattern includes:REST api functions are called using the northbound interface of SDN controllers, open list It broadcasts, multicast link channel.
(5) (as shown in Figure 4) is modeled to SDN controller northbound interfaces.The specific steps of the step (5) modeling include:
Step 501:The northbound interface of SDN controllers is resolved into several logical nodes (LN), then the logical node is closed And at logical device (LD);With data object (DO), data attribute (DA) is filled model, describes, to model attributes reality Exampleization.
Step 502:The logical device is described using the Schema patterns of SCL language, including data frame head is retouched It states, substation describes, IED ability descriptions and communication system describe;
Step 503:According to Abstract Common Service Interface (ACSI), SDN controls are built by way of CLIENT/SERVER MODEL Device information model processed;
Step 504:(SCSM) is mapped according to specific communication service, using MMS mapping methods by SDN controller information models Information be converted to mobile agent server protocol stack, be mapped in specific procotol.
The SDN controller informations model includes client model and server model;The client model comes for intercepting The service request of client is configured from IEC61850;The server model, be used for Generic Substation Event Exchange Service, i.e., one System event distribution between a IED and multiple remote I ED and sampled measurement transmission.
As shown in figure 3, increase the device that IEC 61850 configures interface on a kind of SDN controllers, including:
Function execution module is used for the network management of SDN controllers;The function execution module, including switch management Unit, terminal management unit, flow table administrative unit, routing forwarding administrative unit and statistic unit;
Wherein, the switch management unit is used to manage the data forwarding plane of interchanger;
The terminal management unit is for managing the host and measure and control device accessed in SDN network;
The northbound interface of the flow table administrative unit supports open flow agreements, for externally providing REST api interfaces;
The routing forwarding administrative unit is used for the foundation and maintenance of forward-path;
The statistic unit is used to counting and analyzing the message on forward-path.
Function mapping block, for carrying out function mapping to function execution module according to IEC61850 communication requirements;
The function mapping block, including model information unit, internal storage location, access unit and indexing units;
Wherein, the model information unit is used for the foundation of SDN controller information models;
The internal storage location is used to access the data of SDN controller information models;
The access unit is used to access the state of the internal storage location;
The indexing units search for target MAC (Media Access Control) address for call function pointer.
MMS Network Interface Modules are mapped to specific procotol for function mapping block to be converted to mobile agent server protocol stack On.
Finally it should be noted that:Above example is only to illustrate the technical solution of the application rather than to its protection domain Limitation, although the application is described in detail with reference to above-described embodiment, those of ordinary skill in the art should Understand:Those skilled in the art read the specific implementation mode of application can still be carried out after the application various changes, modification or Person's equivalent replacement, these changes, modification or equivalent replacement, applies within pending right at it.

Claims (7)

1. a kind of increasing the method that IEC 61850 configures interface based on SDN controllers, which is characterized in that the method includes:
(1) such as there is abnormal automatic transmission alarm signal in SDN controllers self-test;
(2) interchanger in intelligent substation is searched for, establishes network topology, and initialized;
(3) function mapping is carried out to SDN controllers according to IEC61850 communication requirements;
The step (3) includes, by the bus and port in IEC61850 specifications, being mapped as the connection of SDN controller north orientations Network and port;And by the sub- bus mapping in intelligent substation be subnet;
Three layer of two Network Communication system of IEC61850 standards is mapped as two networks and multiple subnets again, and imports the section of IED Point link information;According to transformer substation communication business need, the port communication of the IED is set as point-to-point in SDN network The multicast channel of unicast channel or point-to-multipoint;The multicast channel is two layers or L3 Switching;
(4) operating mode of SDN controllers is formulated;
(5) SDN controller northbound interfaces are modeled;
The specific steps of the step (5) modeling include:
Step 501:The northbound interface of SDN controllers is resolved into several logical nodes, then the logical node is merged into logic Equipment;
Step 502:The logical device is described using the Schema patterns of SCL language, including the description of data frame head, change Power station description, IED ability descriptions and communication system description;
Step 503:According to Abstract Common Service Interface, SDN controller information moulds are built by way of CLIENT/SERVER MODEL Type;
Step 504:It maps according to specific communication service, is converted the information of SDN controller information models using MMS mapping methods For mobile agent server protocol stack, it is mapped in specific procotol;
Wherein, the SDN controller informations model includes client model and server model;The client model comes for intercepting The service request of client is configured from IEC 61850;The server model is used for Generic Substation Event Exchange Service, i.e., System event distribution between one IED and multiple remote I ED and sampled measurement transmission.
2. the method as described in claim 1, it is characterised in that:The step (4) formulates the operating mode of SDN controllers, packet Include automatic switch mode, manual configuration pattern and other optional functions;Wherein, the automatic switch mode is used for the mistake of substation Journey is debugged;The manual configuration pattern is used to complete the operation of substation after debugging;Other described optional functions include advanced work( It can be with broadcast storm control function;
The Premium Features can selectively unlock, for realizing the monitoring of link protection change and network flow.
3. method as claimed in claim 2, which is characterized in that the automatic switch mode includes:By any area of SDN controllers The interchanger of numeric field data forwarding is configured to two layers or three layers of automatic forward mode;After opening two layers of automatic forwarding, interchanger will The message of non-successful match reports to SDN controllers in openflow flow tables, and with searching purpose MAC by the SDN controllers Location;If do not hit, by message broadcasting and source address port is recorded, storage to SDN controller look-up tables;If hit, Openflow flow tables forward-path is issued to interchanger;
After opening three layers of automatic forwarding, the SDN controllers learn to complete structure and the inquiry of IP route table by ARP, and turn Openflow flow table issuances are changed into the Forwarding plane of interchanger.
4. method as claimed in claim 2, which is characterized in that the manual configuration pattern includes:Using the north of SDN controllers REST api functions are called to interface, open unicast, multicast link channel.
5. a kind of increasing the device that IEC 61850 configures interface using claim 1 the method based on SDN controllers, It is characterized in that, including:
Function execution module is used for the network management of SDN controllers;
Function mapping block, for carrying out function mapping to function execution module according to IEC61850 communication requirements;
MMS Network Interface Modules are mapped to for function mapping block to be converted to mobile agent server protocol stack in specific procotol.
6. device as claimed in claim 5, which is characterized in that the function execution module includes switch management unit, end Hold administrative unit, flow table administrative unit, routing forwarding administrative unit and statistic unit;
Wherein, the switch management unit is used to manage the data forwarding plane of interchanger;
The terminal management unit is for managing the host and measure and control device accessed in SDN network;
The northbound interface of the flow table administrative unit supports open flow agreements, for externally providing REST api interfaces;
The routing forwarding administrative unit is used for the foundation and maintenance of forward-path;
The statistic unit is used to counting and analyzing the message on forward-path.
7. device as claimed in claim 5, which is characterized in that the function mapping block includes model information unit, memory Unit, access unit and indexing units;
Wherein, the model information unit is used for the foundation of SDN controller information models, and specific steps include:
The northbound interface of SDN controllers is resolved into several logical nodes, then the logical node is merged into logical device;
The logical device is described using the Schema patterns of SCL language, including the description of data frame head, substation are retouched It states, the description of IED ability descriptions and communication system;
According to Abstract Common Service Interface, SDN controller information models are built by way of CLIENT/SERVER MODEL;
It is mapped according to specific communication service, the information of SDN controller information models is converted to by MMS associations using MMS mapping methods Stack is discussed, is mapped in specific procotol;
The internal storage location is used to access the data of SDN controller information models;
The access unit is used to access the state of the internal storage location;
The indexing units search for target MAC (Media Access Control) address for call function pointer.
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CN107610345A (en) * 2016-07-12 2018-01-19 宁波水粉科技有限公司 Intelligent flow charging method and device
TWI623223B (en) * 2016-08-02 2018-05-01 Chunghwa Telecom Co Ltd Software-defined network controller supporting diverse architecture components
CN109246161B (en) * 2017-07-10 2021-08-17 中国电信股份有限公司 Scheduling method and device of controller and computer readable storage medium
CN109687985B (en) * 2017-10-18 2021-09-03 中国电力科学研究院 Automatic configuration method and system for process level network of transformer substation
CN109361601B (en) * 2018-10-31 2021-03-30 浙江工商大学 SDN route planning method based on reinforcement learning

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