1、BRITISH STANDARD BS IEC 61334-1-1:1995 IEC 61334-1-1: 1995 Distribution automation using distribution line carrier systems Part 1: General considerations Section 1: Guide to distribution automation system architecture ICS 29.240.20; 33.040.50BSIEC 61334-1-1:1995 This British Standard, having been pr
2、epared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comes intoeffect on 15 December1997 BSI 03-1999 ISBN 0 580 28598 7 Amendments issued since publication Amd. No. Date CommentsBSIEC 61334-1-1:1995 BSI 03-1999 i Contents Page Na
3、tional foreword ii Foreword iii Text of CEI IEC 1334-1-1 1BSIEC 61334-1-1:1995 ii BSI 03-1999 National foreword This British Standard reproduces verbatim IEC61334-1-1:1995 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee PEL/
4、57, Power system 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, and keep the UK interests informed; monitor related
5、 international and European developments and promulgate them in the UK. This is a so called “state of the art” standard guide, which means that when the committee has collected additional data it will be reviewed and amended as necessary. If any reader of this document has any comments that they fee
6、l the committee should consider could they send them to the secretary of PEL/57 at BSI, 389 Chiswick High Road, London W4 4AL. Fax0181 996 7799. This is one of a family of standards that are being developed. For the latest information please read the BSI catalogue at “http:/www.bsi.org.uk”. A list o
7、f organizations represented on this committee can be obtained on request to its secretary. From1 January1997, all IEC publications have the number60000 added to the old number. For instance, IEC27-1 has been renumbered as IEC60027-1. For a period of time during the change over from one numbering sys
8、tem to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Corresp
9、ondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not
10、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 page, pages ii to iv, pages1to22 and abackcover. This standard has been updated (see copyright date) and may have had amendments incorpora
11、ted. This will be indicated in the amendment table on theinside front cover.BSIEC 61334-1-1:1995 ii BSI 03-1999 Contents Page Foreword iii Introduction 1 1 Scope 1 2 Reference documents 1 3 Structure of a distribution power network 1 3.1 MV power network 2 3.2 LV power network 2 4 Distribution autom
12、ation system architecture 2 4.1 Structure 2 4.2 Identification of interfaces 3 5 Interaction between network structure and automation system 3 5.1 Signal injection 3 5.2 Message routing 4 6 Data communication 4 6.1 Layered structure of communication functions 4 Annex A Example of network automation:
13、 Fault detection and automatic procedures for sectionalizing the faulty section 16 Annex B List of publications concerning distribution automation using distribution line carrier systems 20 Figure 1 Typical diagram of an HV/MV substation 7 Figure 2 Typical diagram of an MV/LV substation 8 Figure 3 T
14、ypical diagram of an MV power network 9 Figure 4 Typical diagram of an LV power network 10 Figure 5 Possible architecture of a distribution automation system 11 Figure 6 DLC-functional components 12 Figure 7 Exchange data over the MV/LV transformer 13 Figure 8 Local reading via the mains 14 Figure 9
15、 DLC for LV with a PSTN connection to the CU 15 Table 1 Facilities offered by distribution automation systems using DLC systems 5 Table 2 Values of standard voltages (IEC38) 5 Table 3 Interfaces to foreign systems 6BSIEC 61334-1-1:1995 BSI 03-1999 iii Foreword 1) The IEC (International Electrotechni
16、cal Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this e
17、nd and in addition to other activities, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organi
18、zations lialsing with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on tech
19、nical matters, express as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published i
20、n the form of standards, technical reports or guides and they are accepted by the National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national
21、 and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conf
22、ormity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. The main task of IEC technical committees is to pr
23、epare International Standards. In exceptional circumstances, a technical committee may propose the publication of a technical report of one of the following types: type 1, when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts; type 2,
24、 when the subject is still under technical development or where for any other reason there is the future but not immediate possibility of an agreement on an International Standard; type 3, when a technical committee has collected data of a different kind from that which is normally published as an I
25、nternational Standard, for example “state of the art”. Technical reports of types1 and2 are subject to review within three years of publication to decide whether they can be transformed into International Standards. Technical reports of type3 do not necessarily have to be reviewed until the data the
26、y provide are considered to be no longer valid or useful. IEC1334-1-1, which is a technical report of type3, has been prepared by IEC technical committee57: Power system control and associated communications. The text of this technical report is based on the following documents: Full information on
27、the voting for the approval of this standard can be found in the report on voting indicated in the above table. This series of IEC1334, listed in Annex B, concerns distribution automation systems supported by two-way communication channels using medium-and low-voltage distribution power mains as dat
28、a transmission media. Such communication channels will be referred to as “DLC”, which stands for distribution line carrier. Distribution automation systems are intended to provide a large amount of facilities related to two main applications, concerning network automation and customer service automa
29、tion. Committee draft Report on voting 57 (SEC) 196 57/240/RVCBSIEC 61334-1-1:1995 iv BSI 03-1999 Table 1 summarizes the most important options concerning the above-mentioned applications. Requirements concerning these options will be included in the future IEC1334-1-2. As medium-voltage and low-vol
30、tage power mains have been designed for electric energy supply, and, consequently, can only offer poor performances for data transmission, stringent requirements are necessary in order to ensure data integrity and transmission efficiency suitable to the application needs. The aim of these publicatio
31、ns is to provide adequate information for correct design and reliable operation of distribution automation systems using DLC.BSIEC 61334-1-1:1995 BSI 03-1999 1 Introduction Distribution networks, in spite of being difficult channels for data communication because of signal attenuation, noise level a
32、nd the fact that coupling side impedance can vary unpredictably with time, have always been considered by the electric utilities as the most attractive resource for supporting the introduction of automation techniques aimed at reducing operating cost and capital expenditure. Compared to other commun
33、ication media, distribution networks are owned by the electric utilities. This allows the creation of new services without requiring additional communication carrier costs or significant operational increase of costs. Moreover, electric utilities can keep direct control over the transmission equipme
34、nt, thus avoiding reliance on a third party. For these reasons, a number of communication systems using distribution networks as a transmission medium have been already developed at industrial levels. The first systems, due to the limited possibilities offered by technology, could only offer a one-w
35、ay link from control centres towards the remote equipment to be controlled. However, they opened the way to the implementation of distribution automation techniques suitable to satisfactorily respond to certain important needs, mainly related to the field of customer service automation, as for examp
36、le: introduction of advanced tariff system (indirect load management); direct management of customer load. In more recent years, due to the progress of electronics, two-way communication systems providing low data transmission speed (not more than a few bits/s) have been installed. They have been ut
37、ilized to support network automation techniques requiring the acknowledgement of commands sent towards line switches, as for example: automatic sectionalizing of feeders affected by fault; remote operation of capacitor banks. At present industrial development of very effective two-way communication
38、systems can be envisaged. Their main feature is the ability to provide higher data transmission speed (from tens to hundreds of bits/s), so that a single channel can support most applications of distribution automation, thus allowing favourable cost/benefits evaluation. In this way, a large number o
39、f facilities related to both network and customer service automation seems to be able to find a very comprehensive solution within the framework of integrated distribution automation systems. It should be noticed that, even though the technique for transmitting communication signals on a distributio
40、n network is quite similar to that already well developed for high-voltage lines, stringent constraint for identifying cost-effective solutions is to be considered as a mandatory requirement. Experience with high-voltage line carrier systems may not be directly applicable to distribution network lin
41、e-carrier systems due to factors including cost considerations. Therefore, line carrier communication systems on distribution networks should be treated as a completely new application area in relation to what is already known four high-voltage networks. 1 Scope This technical report of type 3, afte
42、r a short description of the structure of distribution networks for both medium-and low-voltage levels, presents the architecture of a distribution automation system (DAS) using distribution line carrier systems. It outlines and discusses the interaction between the distribution network structure an
43、d the configuration of the distribution automation system. It provides an overview of the functional elements which constitute the basic structure and it deals with the main options concerning the coupling methods for the transmission signal injection. It also identifies the ISO-OSI levels involved
44、in the functional architecture of distribution automation systems. 2 Reference documents IEC 38:1983, IEC standard voltages. ISO 7498:1984, Information processing systems Open Systems Interconnection Basic reference model. 3 Structure of a distribution power network A distribution power network incl
45、udes two main power networks referred to as MV (medium-voltage) and LV (low-voltage). Table 2 summarizes the values of standard and exceptional voltages of the distribution power network, according to IEC38.BSIEC 61334-1-1:1995 2 BSI 03-1999 3.1 MV power network MV power networks are supplied throug
46、h HV/MV transformers, installed in HV/MV substations, typically as shown in Figure 1. Each HV/MV transformer whose MV winding neutral point can be either isolated or connected to earth by means of a suitable impedance supplies a section of busbar. Each busbar section supplies a number of MV feeders
47、through circuit-breakers with associated protection and possibly control (auto-reclosing) devioes. MV busbar sections in an HV/MV substation may be interconnected through a circuit-breaker to allow energizing all the MV feeders from one HV/MV transformer. For power factor compensation, one switched
48、capacitor bank per busbar section may also be installed. MV feeders are an aggregation of several line sections delimited by switches, without any protection device associated, installed within an MV/LV substation. A typical diagram is shown in Figure 2. In relation to the operation of line switches
49、, which can be either motorized or not, the resulting configuration of the MV power network is dynamic. Each line section can be composed of one or more of the following main types: underground or overhead insulated cables, overhead lines with bare conductors. Since most feeders rejoin MV busbar of adjacent HV/MV substations, the MV power network composed by MV feeders and MV/LV substations is a meshed network. A typical diagram is shown in Figure 3. In some cases, the MV network supplied by the same HV/MV substations, can in
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