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    BS EN 61297-1996 Industrial-process control systems - Classification of adaptive controllers for the purpose of evaluation《工业过程控制系统 鉴定用自适应控制器分类》.pdf

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    BS EN 61297-1996 Industrial-process control systems - Classification of adaptive controllers for the purpose of evaluation《工业过程控制系统 鉴定用自适应控制器分类》.pdf

    1、BRITISH STANDARD BS EN 61297:1996 IEC1297:1995 Industrial-process control systems Classification of adaptive controllers for the purpose of evaluation The European Standard EN61297:1995 has the status of a BritishStandard ICS 25.040.40; 35.240.50BSEN61297:1996 This BritishStandard, having been prepa

    2、red under the directionof the ElectrotechnicalSector Board,was published under theauthorityof the StandardsBoardand comesinto effect on 15 June1996 BSI01-2000 The following BSI references relate to the work on this standard: Committee reference GEL/65 Draft for comment90/28883DC ISBN 0 580 25671 5 C

    3、ommittees responsible for this BritishStandard The preparation of this BritishStandard was entrusted by Technical Committee GEL/65, Measurement and control, upon which the following bodies were represented: British Coal Corporation British Gas plc British Nuclear Fuels plc Electrical Contractors Ass

    4、ociation Electricity Association Energy Industries Council GAMBICA (BEAMA Ltd.) Health and Safety Executive Institution of Gas Engineers The following bodies were also represented in the drafting of the standard, through subcommittees and panels: British Pressure Gauge Manufacturers Association Depa

    5、rtment of Trade and Industry (National Engineering Laboratory) Department of Trade and Industry (Services Management Division) Engineering Industries Association Institute of Materials Institution of Electrical Engineers Amendments issued since publication Amd. No. Date CommentsBSEN61297:1996 BSI 01

    6、-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN61297 3BSEN61297:1996 ii BSI 01-2000 National foreword This BritishStandard has been prepared by Technical Committee GEL/65 and is the English language version of EN61297:1995 Industrial-process

    7、 control systems Classification of adaptive controllers for the purpose of evaluation, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC1297:1995 published by the International Electrotechnical Commission (IEC). A British Standard does not p

    8、urport 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 of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside fron

    9、t cover, pagesi andii, theEN title page, pages2 to5 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.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN61297 Octobe

    10、r1995 ICS 33.020 Descriptors: Control system, industrial-process, adaptive controller, classification, evaluation English version Industrial-process control systems Classification of adaptive controllers for the purpose of evaluation (IEC1297:1995) Systmes de commande des processus industriels Class

    11、ification des rgulateurs adaptatifs en vue de leur valuation (CEI1297:1995) Industrielle Prozeleitsysteme Klassifikation von adaptiven Reglern (IEC1297:1995) This European Standard was approved by CENELEC on1995-09-20. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations whi

    12、ch stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European

    13、 Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the

    14、national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Norm

    15、alisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1995 Copyright reserved to CENELEC members Ref. No. EN61297:1995 EEN61297:1995 2 BSI 01-2000 Foreword The text of document65B/226/DIS, future edition1 of IEC1297, prep

    16、ared by SC65B, Devices, of IEC TC65, Industrial-process measurement and control, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN61297 on1995-09-20. The following dates were fixed: Contents Page Foreword 2 1 Scope 3 2 Classification of methods of adaptation 3 2.1 Main

    17、 categories 3 2.2 Self-adaptive controllers 3 2.3 Fixed dependency adaptive controllers 3 3 Terminology for self-adaptive controllers 3 4 Terminology for controllers with fixed dependency adaptation 4 5 Terminology for the description of the adaptation process 4 6 Summary of terms 5 Figure 1 Classif

    18、ication of adaptation methods 3 Figure 2 Terms for self-adaptive controllers 4 Figure 3 Terms for controllers with fixed dependency adaptation 4 Figure 4 Additional definitions for the description of the adaptation 5 Figure 5 Terms for adaptive controllers 5 latest date by which the EN has to be imp

    19、lemented at national level by publication of an identical national standard or by endorsement (dop)1996-07-01 latest date by which the national standards conflicting with the EN haveto be withdrawn (dow)1996-07-01EN61297:1995 BSI 01-2000 3 1 Scope This International Standard classifies and defines t

    20、he terms to be used in describing the different types of adaptive controller. The classifications described are logically a complete series, although it is quite possible that no controller will be available in some of the categories described. However, many controllers will be classified under more

    21、 than one category described in this standard. 2 Classification of methods of adaptation 2.1 Main categories Adaptive controllers are classified into two main categories, by virtue of the type of adaptation which their design incorporates. These are defined below in2.2 and2.3, and shown in Figure 1.

    22、 This classification is based on the practical concept of whether the controller is able to optimize itself automatically, or whether the operator has to set in the optimization strategy based on his experience of the process characteristics. 2.2 Self-adaptive controllers Controllers are described a

    23、s self-adaptive when some of their control characteristics can be adjusted automatically, either on demand or continuously, in order to achieve a specified response of the control loop. 2.3 Fixed dependency adaptive controllers The adaptation is described as fixed dependency adaptation when the opti

    24、mization of the controller is based on prescribed changes in the controller characteristics based on the measured process characteristics (process model). 3 Terminology for self-adaptive controllers The names given to the different types of self-adaptive controllers relate to the manner in which the

    25、 adaptation is implemented. This depends on whether it is the controller parameters, the controller structure, or the input signals to the controller which are influenced by the adaptation (see Figure 2). 3.1 self-tuning on demand a controller is of this type when the adaptation to optimize the cont

    26、roller parameters is initiated on demand from the operator 3.2 continuously self-tuning a controller is of this type when the adaptation to optimize the controller parameters is a continuous process 3.3 structure adaptive controllers a controller is of this type when the structure of the controller

    27、is modified by the adaptation process, for example P-PI-switchover 3.4 signal adaptive controller a controller is of this type when the adaptation process influences the input signal to the controller, for example by modifying the characteristics of some input filters NOTEMany self-adaptive controll

    28、ers are of the “self-tuning on demand” or “continuously self-tuning” types. Figure 1 Classification of adaptation methodsEN61297:1995 4 BSI 01-2000 4 Terminology for controllers with fixed dependency adaptation The names given to the different types of fixed dependency adaptation controllers relate

    29、to the controller characteristics by which the adaptation is implemented (see Figure 3). 4.1 controllers with parameter scheduling a controller is of this type when the controller parameters are modified by the fixed dependency adaptation process 4.2 controller with structure scheduling a controller

    30、 is of this type when the structure of the controller is modified by the fixed dependency adaptation process, for example P-PI-switchover 4.3 controller with signal scheduling a controller is of this type when the fixed dependency adaptation process influences the input signal to the controller, for

    31、 example by modifying the characteristics of some input filters 5 Terminology for the description of the adaptation process 5.1 controller type the name of the adaptive controller also contains the term for the applied control algorithm, for example PID, state-space controller, etc. Figure 2 Terms f

    32、or self-adaptive controllers Figure 3 Terms for controllers with fixed dependency adaptationEN61297:1995 BSI 01-2000 5 5.2 adaptation method the adaptation is described as direct if the controller is influenced directly by the adaptation, without generating explicitly a process model. Otherwise the

    33、adaptation is described as indirect. The adaptation is called deterministic (or stochastic) if the quality criterion is deterministic (stochastic) (see Figure 4) 6 Summary of terms A summary of the relationship between the above terms relating to the adaptive controllers is shown diagrammatically in

    34、 Figure 5. Figure 4 Additional definitions for the description of the adaptation Figure 5 Terms for adaptive controllersBSEN 61297:1996 IEC1297:1995 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards

    35、. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant ai

    36、m of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:020899

    37、69000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services.

    38、 Tel:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, Eu

    39、ropean and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing member

    40、s of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also h

    41、olds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, record

    42、ing or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.


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