IEC TR 62195:2000
(Main)Power system control and associated communications - Deregulated energy market communications
Power system control and associated communications - Deregulated energy market communications
Is a technical report dealing with electronic communications in deregulated energy markets. Identifies the requirements and functional needs for communications in deregulated energy markets. A clear distinction is made between communications for control of energy systems and communications for the market. Addresses the interrelation and interworking between these separate fields.
General Information
Relations
Standards Content (Sample)
TECHNICAL IEC
REPORT
TR 62195
First edition
2000-04
Power system control and associated
communications –
Deregulated energy market communications
Conduite des systèmes de puissance
et communications associées –
Communications dans un marché d'énergie déréglementé
Reference number
IEC/TR 62195:2000(E)
Numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series.
Consolidated publications
Consolidated versions of some IEC publications including amendments are
available. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the
base publication, the base publication incorporating amendment 1 and the base
publication incorporating amendments 1 and 2.
Validity of this publication
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology.
Information relating to the date of the reconfirmation of the publication is available
in the IEC catalogue.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is to be found at the following IEC sources:
• IEC web site*
•
Catalogue of IEC publications
Published yearly with regular updates
(On-line catalogue)*
• IEC Bulletin
Available both at the IEC web site* and as a printed periodical
Terminology, graphical and letter symbols
For general terminology, readers are referred to IEC 60050: International
Electrotechnical Vocabulary (IEV).
For graphical symbols, and letter symbols and signs approved by the IEC for
general use, readers are referred to publications IEC 60027: Letter symbols to be
used in electrical technology, IEC 60417: Graphical symbols for use on equipment.
Index, survey and compilation of the single sheets and IEC 60617: Graphical symbols
for diagrams.
* See web site address on title page.
TECHNICAL IEC
REPORT
TR 62195
First edition
2000-04
Power system control and associated
communications –
Deregulated energy market communications
Conduite des systèmes de puissance
et communications associées –
Communications dans un marché d'énergie déréglementé
IEC 2000 Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
V
International Electrotechnical Commission
For price, see current catalogue
– 2 – TR 62195 IEC:2000(E)
CONTENTS
Page
FOREWORD . 3
Clause
1 Introduction. 4
1.1 Task defined by TC 57 . 4
1.2 Background. 4
1.3 Quadrant diagram . 6
2 Transactions (quadrants 1and 3) . 6
2.1 Market transactions (quadrant 1) . 8
2.2 Technical transactions (quadrant 3). 9
2.3 Interface between market and technical information system (quadrant 1/3) . 9
3 Available protocols . 10
3.1 Protocols available for market transactions (quadrant 2). 10
3.2 Protocols available for technical transactions (quadrant 4). 11
4 Need for standards and work programme . 14
4.1 Market transaction and protocols (quadrants 1 and 2). 14
4.2 Technical transactions and protocols (quadrant 3 and 4) . 15
4.3 Transactions between market and power system operation. 16
4.4 Proposal . 17
5 Conclusions . 18
Annex A Comparison of markets and related transactions . 20
Annex B Definitions . 25
Annex C Existing solutions. 29
Annex D An actual example for figure 1 model (market in England and Wales). 35
TR 62195 IEC:2000(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POWER SYSTEM CONTROL AND ASSOCIATED COMMUNICATIONS –
DEREGULATED ENERGY MARKET COMMUNICATIONS
FOREWORD
1) The IEC (International Electrotechnical 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 end 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 organizations liaising
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 technical 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 in the form
of standards, technical specifications, 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 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 conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this technical report may be the subject of
patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
Technical reports do not necessarily have to be reviewed until the data they provide are
considered to be no longer valid or useful by the maintenance team.
IEC 62195, which is a technical report, has been prepared by technical committee 57: Power
system control and associated communications
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
57/434/Q 57/457/RQ
Full information on the voting for the approval of this technical report can be found in the report
on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
This document which is purely informative is not to be regarded as an International Standard.
– 4 – TR 62195 IEC:2000(E)
POWER SYSTEM CONTROL AND ASSOCIATED COMMUNICATIONS –
DEREGULATED ENERGY MARKET COMMUNICATIONS
0 Scope
This technical report deals with electronic communication in deregulated markets.
0.1 Reference documents
IEC 61334 (all parts) Distribution automation using distribution line carrier systems
IEC 60870-6 (series) Telecontrol equipment and systems – Part 6: Telecontrol protocols
compatible with ISO standards and ITU-T recommendations
1 Introduction
1.1 Task defined by TC 57
The task of the AHWG05 is to identify requirements and functional needs for communications
in deregulated markets. In so doing, a clear distinction should be made between
communications for control of energy systems and communications for the market. On the
other hand, the interrelation and interworking between these separate fields have to be
addressed.
The subject should include, but not be restricted to, the ‘transport capacity market’, the ‘energy
spotmarket’, ‘bilateral trades’, ‘accounting and billing’ and general communication services
such as electronic mail.
For the next TC 57 session (Lucerne) a report should be prepared including a proposal for a
scope and a work programme.
In response to concerns on the objectives of this ad hoc group the following statement was
also made:
The goal of the ad hoc working group is not (yet) to elaborate a standard, but to analyse
whether and where a standard should be elaborated. It is not the intention of TC 57 to become
involved in political issues nor to advise utilities how to organize the competition in the
electricity market.’
1.2 Background
There had been some preliminary discussions on electricity trading within the UNIPEDE
NORMICT group, particularly concerning trading across borders. This issue was subsequently
raised at the TC 57 Plenary in Dresden in September 1996 where it was decided that, if there is
need for standardization of communication protocols concerned with deregulated electricity
markets, then this would fall within the scope of TC 57. A meeting was called at Dresden to
discuss how to proceed and a possible scope. The response was greater than expected, but no
conclusion was reached regarding scope. The Plenary then decided to create AHWG05 to
study the matter.
AHWG05 has since studied existing and proposed solutions to deregulation in order to learn
what the requirements should be. In this respect the initial approach has been ‘bottom up’. In
addition, the group has further refined its scope.
TR 62195 IEC:2000(E) – 5 –
- trading energy
- generation of energy
- trading system services
- providing system services
- reservation of transmission capacity
- providing security and stability
- billing and accounting
Producer
Broker/
Generating
depending on
market model
Trader
units
Market result
Other
Power
Control
information required
Exchange
Control
for security
Consumer Center
Center
Distribution
information required
Single
by market
Cont. Center
Buyer
Pow.Op.Sys. result :
substations
Regulator
. . .
yes/no
Power operation
system
Market system
rather wellknown and stable
Diverse, complex, evolving
depends on physics
depends on regional politics
Figure 1 – Market system and power operation system
Firstly, a distinction has to be made between market and power operation communication
systems. Figure 1 shows the main characteristics of these two worlds and their interfaces. Of
course, the actors (boxes) and transactions (lines) have to be taken as an illustration and not
as a reliable description of reality, that is far more complex.
The left-to-right arrows represent the information provided by the market to the power
operation. One arrow (coloured in plain grey) is determined by regional organization (grid code,
market organization, etc.). The other arrow (coloured in shaded grey) is the information the
market has to provide to the ISO(Independent System Operators) in order to secure power
system operation.
The right to left arrows represent the information provided to the market by power operation.
The colouring code is similar to the above, but the first arrow provides data which depends on
regional organization (metering, etc.) and the second that which is necessary for security.
An actual example of this model, representing the system in England and Wales, is given in
annex D.
– 6 – TR 62195 IEC:2000(E)
1.3 Quadrant diagram
The following diagram (figure 2) completes the former by a second classification: transactions
and protocols. That leads to the structure with four quadrants:
Quadrant 1: Market information system (market applications and actors and transactions
between them)
Quadrant 2: Available protocols for market transactions.
Quadrant 3: Technical information system (power system operation applications
transactions)
Quadrant 4: Available protocols for technical transactions
COMMERCIAL TECHNICAL
T
Q3
R Q1
A
N
MARKET RESULTS
S
market technical
A
C
T applications applications
I
Power operation
O
N system result
S
Q4
Q2
P
T
T
R
A
A
O
WWW
T
S S
O
. . .
EDIFACT
E
E
C
O
. . .
L
S 2
Figure 2 – Quadrant diagram
2 Transactions (quadrants 1and 3)
In deregulated energy markets, the notion of transaction model is important. This includes the
actors, the transactions itself and the exchanged objects involved. With deregulation the
transaction effort increases significantly in respect to integrated utilities because there are
more interfaces between now independent functions and actors. It should be the aim of any
standardization to decrease the transaction effort by use of advanced ICT (In
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.