1、BRITISH STANDARD BS IEC 61334-1-2:1997 IEC 61334-1-2: 1997 Distribution automation using distribution line carrier systems Part 1-2: General considerations Guide for specification ICS 29.240.20BS IEC61334-1-2:1997 This British Standard, having been prepared under the direction of the Electrotechnica
2、l Sector Board, was published under the authority of the Standards Board and comes intoeffect on 15 April 1998 BSI 04-1999 ISBN 0 580 29769 1 National foreword This British Standard reproduces verbatim IEC 61334-1-2:1997 and implements it as the UK national standard. The UK participation in its prep
3、aration was entrusted to Technical Committee PEL/57, Power systems control and associated communications, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, a
4、nd keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the ol
5、d number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publicatio
6、ns referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provision
7、s of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theCEI IEC title pag
8、e, page ii, pages 1 to 19 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBS IEC61334-1-2:1997 BSI 04-199
9、9 i Contents Page National foreword Inside front cover Text of CEI IEC 61334-1-2 1ii blankBS IEC61334-1-2:1997 ii BSI 04-1999 Contents Page Introduction 1 Scope and object 1 2 Reference documents 1 3 Choice of the architecture 2 4 General description of a distribution automation system 2 4.1 Descrip
10、tion of the network 2 4.2 Functional requirements for network automation system 2 4.2.1 Basic application functions 2 4.2.2 Extended application functions 2 4.2.3 Performance specification for network automation requirements 3 4.3 Functional requirements for customer automation 3 5 Classification of
11、 performance requirements 3 5.1 Operating and medium access mode 4 5.2 Bit error rate (BER) 4 5.3 Residual error rate (RER) 4 5.4 Availability 4 5.5 Data integrity 4 5.6 Response time 5 5.7 Data confidentiality 5 5.8 Throughput 5 6 Comparison and valuation of different coupling methods 5 6.1 Paralle
12、l coupling methods 5 6.1.1 Common mode capacitive coupling methods 5 6.1.2 Common mode inductive coupling method 5 6.1.3 Differential mode capacitive coupling method 6 6.2 Serial coupling method 6 7 Quality assurance procedures 6 7.1 References 7 7.2 Definitions 7 7.3 Documentation of the system 8 7
13、.3.1 Quality policies and procedures 8 7.3.2 Quality manual 8 7.3.3 Quality plans 8 Annex A Comparison and evaluation of two different modulation techniques 12 Annex B General outline of a quality plan 16 Figure 1 Architecture of a distribution automation system using MV and LV power lines as commun
14、ication media to support network and customer automation facilities 9 Figure 2 Architecture of a distribution automation system using MV power lines as communication media to support MV network automation facilities 10 Figure 3 Architecture of a distribution automation system using public telephone
15、network and LV power lines as communication media to support MV and LV customer automation facilities 11 Table 1 Basic functions of a network automation system 3 Table 2 Parameters of a typical FSK narrow-band modem 3 Table 3 Coupling methods 6 Table A.1 Example 1: parameters of a typical FSK narrow
16、-band modem 14 Table A.2 Parameters of direct sequence spread spectrum wide-band modems 15BS IEC61334-1-2:1997 BSI 04-1999 1 Introduction The design of distribution automation systems using distribution line carrier is quite complex, as it involves the specification of a large amount of detailed inf
17、ormation concerning: system architecture; application processes; operational parameters; processing and transmission equipment; interfaces between the components of the system; environmental conditions; quality assurance procedures. Most of the above-mentioned aspects are clarified by technical repo
18、rts or covered by International standards either inside IEC TC 57 publications and within the IEC TC 57(WG 9) series on distribution automation systems using distribution line carrier systems, but many options are available to the engineers who have to design a specific application. 1 Scope and obje
19、ct This technical report of type3 is intended to offer useful information to design a distribution automation system (DAS) using distribution line carrier (DLC) systems for a specific application. For the sake of clarity, the information, useful to design a DAS using DLC systems for a specific appli
20、cation, has been subdivided into three main steps: the first step concerns the strategic choices determining the architecture of the DAS (clause3); the second step deals with the specification of the application processes and the related operational parameters (clause4); the third step refers to the
21、 facilities that both processing and transmission equipment have to provide in order to cope with the application needs (clause5). Clause6 is dedicated to a general valuation of different coupling methods. Clause7 is instead dedicated to the quality assurance procedures in order to meet the applicat
22、ion needs included in a DLC system. Moreover, this technical report contains two annexes: Annex A containing the comparison and evaluation of two different modulation techniques (narrow-band FSK modulation and wide-band modulation); Annex B containing the general outline of a quality plan. 2 Referen
23、ce documents IEC 60358:1990, Coupling capacitors and capacitor dividers. IEC 60481:1974, Coupling devices for power line carrier systems. IEC 60870-5-1:1990, Telecontrol equipment and systems Part 5: Transmission protocols Section1: Transmission frame formats. IEC 61334-1-1:1995, Distribution automa
24、tion using distribution line carrier systems Part 1: General considerations Section 1: Distribution automation system architecture. IEC 61334-3-1, Distribution automation using distribution line carrier systems Part 3: Mains signalling requirements Section 1: Frequency bands and output levels 1) . I
25、EC 61361:1996, Electricity metering Local and remote data exchange Application and performance. ISO/IEC 8072:1994, Information technology Open Systems Interconnection Transport service definition. ISO/IEC 8073:1992, Information technology Telecommunications and information exchange between systems O
26、pen Systems Interconnection Protocol for providing the connection-mode transport service. ISO 8402:1994, Quality management and quality assurance Vocabulary. ISO 9000, Quality management and quality assurance standards. ISO 9001:1994, Quality systems Model for quality assurance in design, developmen
27、t, production, installation and servicing. ISO 9002:1994, Quality systems Model for quality assurance in production, installation and servicing. ISO 9003:1994, Quality systems Model for quality assurance in final inspection and test. ISO 9004, Quality management and quality system elements. ISO 9004
28、-1:1994, Quality management and quality system elements Part 1: Guidelines. 1) To be published.BS IEC61334-1-2:1997 2 BSI 04-1999 3 Choice of the architecture With reference to the general architecture of a DAS using a DLC communication system described in IEC 61334-1-1, the choice of the effective
29、structure of a DAS system depends strictly on the required facilities. For this purpose, the following possibilities are to be considered: a) a DAS that includes both network and customer automation facilities should have the architecture as shown in Figure 1 (general architecture); b) a DAS that in
30、cludes only MV-network automation facilities should have the architecture as shown in Figure 2. This structure comes from the general one eliminating the low voltage network and the MV customers; c) a DAS that includes only MV and LV customer automation facilities could have two different types of a
31、rchitecture: 1) the general architecture as shown in Figure 1; 2) the architecture as shown in Figure 3; this solution makes provision for the use of: “foreign” telecommunication systems (e.g. the public switched telephone network or PSTN) between the central unit and all MV/LV substations and MV cu
32、stomers; DLC system between each MV/LV substation and LV customers. The choice between these two different architectures should be made by the engineers, who have to plan the DAS and establish the specifications, on the base of the following considerations: structure of the MV network and its operat
33、ion modalities; cost of a MV-DLC system and its servicing; reliability of a MV-DLC system; rent cost and availability of a “foreign” telecommunication system. 4 General description of a distribution automation system The whole information will be given in the following in order to specify a DAS. The
34、ir applicability (total/partial) is function of the selected architecture. 4.1 Description of the network A detailed description of the power network involved is necessary to design a DLC communication system supporting the DAS. In the following are pointed out the main information: general layout o
35、f MV-Network, distinguishing the HV/MV substations (that supplied the MV feeders) and the MV/LV substations controlled; layout of the MV busbars section of each HV/MV substation; layout of each MV feeder (backbone and/or branches) that energize MV/LV substations up to the disconnection points; the w
36、hole description of each MV/LV substation (electric layout for both MV and LVsections, type, identification name or number,etc.); the whole information identifying each MV customer (name, address, contractual parameters, etc.); layout of each LV feeder (backbone and/or branches) that energize LV cus
37、tomers up to the disconnection point; the whole information identifying each LV customer (name, address, contractual parameters, etc.). 4.2 Functional requirements for network automation system 4.2.1 Basic application functions The basic functions of a network automation system, mainly aimed to the
38、improvement of the quality of the electricity supply are indicated inTable 1. Further indications of the requirements for DAS are contained in IEC 61361. 4.2.2 Extended application functions These include the following: automatic detection and disconnection of the faulty section of the network; auto
39、matic service restoration on the network portion not affected by fault; application of enhanced strategies for voltage and reactive power control on MV-network; collection and storage of data related to network operation for planning and engineering purposes; data information logging and reporting;
40、man machine interface and procedures.BS IEC61334-1-2:1997 BSI 04-1999 3 4.2.3 Performance specification for network automation requirements 4.3 Functional requirements for customer automation For the requirement for customer automation, reference should be made to IEC61361. This technical report spe
41、cifies the various functions required for customer automation system and defines the performance requirements in terms of: Table 1 Basic functions of a network automation system Table 2 Parameters of a typical FSK narrow-band modem type of message; time of message; proportion of customer accessed; f
42、requency of message; response time of message; plus other requirements specific to various types of message. 5 Classification of performance requirements This clause deals with those characteristics which affect the performance of a DLC communication system and relates the characteristics to the app
43、lication and processing functions. The object of this clause is to establish a set of rules which can be used to assess and specify the performance requirements of a DLC communication system supporting both network and customer automation. Category Requirements/purpose 1 Monitoring 1.1 Read remotely
44、 measured and/or displayed parameter (current, voltage, frequency, temperature, etc.) 1.2 Receive alarm signal of switch trip 1.3 Receive alarm signal/message of relay operation 1.4 Receive alarm signal of d.c. power supply 1.5 Confirm status (open/close position) of specific switch, necessary to up
45、date the status of connection of the network 1.6 Routine status update of all monitored 2 Control 2.1 Initiate close/trip of remote switch (feeder, transformer, busbar, capacitor) 2.2 Cancel/reset local alarm indication 2.3 Set/reset local control/remote control interlock 2.4 Initiate on-load tap ch
46、ange of the transformer Feature criteria Read remote parameters Trip remote switch a) Typical time period of expected use 24 h 24 h b) Are there daily transactions? Yes Yes c) Expected frequency of use daily per total capacity # 96 1 d) Penetration required Substation bar Individual switch e) Target
47、 response time 1 min 2 min 5 s f) Priority of transaction Medium High g) Transaction type a Get (L 1 P 1 V 1 ) Do (L 1 S 1 O 1 ) h) Data size per transaction (byte) 3 to 4 3 to 4 a Get (L 1P 1 V 1 ) = Obtain parameter P 1value V 1at location L 1 . Do (L 1S 1O 1 ) = Carry out operation O 1(open/close
48、) on switch S 1at location L 1etc.BS IEC61334-1-2:1997 4 BSI 04-1999 It is intended that this clause serves as a common platform for the system planner and the supplier or manufacturer of telecontrol systems. The system planner will find the contents helpful in determining the requirements for a par
49、ticular telecontrol system. In addition, these rules provide a means of comparing the products of different suppliers. The supplier or manufacturer will find information for the system design and a base for classification of system performance. Data communication performances are strictly dependent on the extent of the functions to be carried out. With reference to a DAS providing both network and customer automation facilities in the follo
