1、RATIFIED EUROPEAN TEXT EN50318:2002 European Standards only exist formally as national transpositions (i.e. a BS EN for the UK) of a commonly agreed “ratified” text. This document will shortly be published as a British Standard. It is being made available in advance of its formal publication to give
2、 interested parties early access to the technical information which the British Standard will contain. When the British Standard is formally published it will be supplied to you automatically, without any additional charge. Purchasers of this document should be aware of the following limitations whe
3、n using the document. The British Standard may contain additional information in the national foreword or national annex, Full rights conferred by compliance with the standard may only be granted by reference to the formal national transposition of the text as a British Standard. This document was a
4、pproved by CEN/CENELEC in its three official languages on the date given below. Under CEN/CENELEC rules, BSI is obliged to publish its national transposition within six months of this date. This ratified text was approved on 2002-04-01EUROPEAN STANDARD EN 50318 NORME EUROPENNE EUROPISCHE NORM July 2
5、002 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2002 CENELEC - All rights of exploitation in any form and by any means reser
6、ved worldwide for CENELEC members. Ref. No. EN 50318:2002 E ICS 29.280 English version Railway applications - Current collection systems - Validation of simulation of the dynamic interaction between pantograph and overhead contact line Applications ferroviaires - Systmes de captage de courant - Vali
7、dation des simulations de linteraction dynamique entre le pantographe et la catnaire Bahnanwendungen - Stromabnahmesysteme - Validierung von Simulationssystemen fr das dynamische Zusammenwirken zwischen Stromabnehmer und Oberleitung This European Standard was approved by CENELEC on 2002-04-01. CENEL
8、EC members are bound to comply with the CEN/CENELEC Internal Regulations which 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 ap
9、plication to the Central Secretariat or to any CENELEC member. This European 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 Secret
10、ariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden
11、, Switzerland and United Kingdom.EN 50318:2002 2 Foreword This European Standard was prepared by SC 9XC, Electric supply and earthing systems for public transport equipment and ancillary apparatus (fixed installations), of Technical Committee CENELEC TC 9X, Electrical and electronic applications for
12、 railways. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50318 on 2002-04-01. The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2003
13、-04-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2005-04-01 Annexes designated “normative“ are part of the body of the standard. In this standard, annex A is normative This European Standard has been prepared under a mandate given to CENELEC by
14、the European Commission and supports the Interoperability Directive, 96/48/EC. _ 3 EN 50318:2002 Contents Page 1 Scope .4 2 Normative references4 3 Definitions .4 4 Symbols 6 5 General .6 6 Modelling of the pantograph 8 6.1 General requirements.8 6.2 Minimum data8 7 Modelling of the overhead contact
15、 line8 7.1 General requirements.8 7.2 Minimum data9 8 Parameters of simulation.9 9 Output.10 9.1 Contact force. 10 9.2 Wire displacement 10 9.3 Pantograph displacement10 9.4 Loss of contact 10 10 Validation with measured values 11 10.1 Comparison values. 11 10.2 Limits of validation .11 11 Reference
16、 model 12 11.1 Purpose of reference model 12 11.2 Reference model data 12 11.3 Reference model results . 13 Annex A (normative) Reference model specification 14 A.1 Pantograph data. 14 A.2 Overhead contact line data 15 A.3 Parameters of simulation.16 Figure 1 - Steps of evaluation7 Figure A.1 - Pant
17、ograph model .14 Figure A.2 - Catenary system15 Table 1 - Deviation of simulated values.11 Table 2 - Ranges of results from reference model .13 Table A.1 - Pantograph data .14 Table A.2 - Position of droppers 15 Table A.3 - Mechanical values of wires15EN 50318:2002 4 1 Scope This European Standard s
18、pecifies functional requirements for the validation of simulation methods to ensure mutual acceptance of input and output parameters; a standardized subset of test results for evaluation of simulation methods; comparison with measurements; comparison between simulation methods. This standard applies
19、 to the current collection from an overhead contact line by pantographs mounted on railway vehicles. It does not apply to trolley bus systems. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are
20、 cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest e
21、dition of the publication referred to applies (including amendments). EN 50206-1 Railway applications Rolling stock Pantographs: Characteristics and tests Part 1: Pantographs for main line vehicles EN 50317 Railway applications Current collection systems Requirements for and validation of measuremen
22、ts of the dynamic interaction between pantograph and overhead contact line 3 Definitions For the purpose of this standard the following definitions apply: 3.1 contact point point of mechanical contact between a contact strip and a contact wire 3.2 contact force vertical force applied by the pantogra
23、ph to the overhead contact line. The contact force is the sum of the forces of all contact points 3.3 static force mean vertical force exerted upward by the collector head on the overhead contact line, and caused by the pantograph raising device, whilst the pantograph is raised and the vehicle is at
24、 standstill EN 50206-1 3.4 aerodynamic force vertical force applied to the pantograph as a result of air flow around the pantograph components 5 EN 50318:2002 3.5 mean value of contact force F M arithmetic mean of contact force 3.6 standard deviation of contact force square root of the sum of the sq
25、uare errors divided by the number of output values minus 1 3.7 statistical minimum of contact force value of contact force represented by F M 3 3.8 statistical maximum of contact force value of contact force represented by F M+ 3 3.9 minimum of contact force minimum contact force while the pantograp
26、h passes over the analysis section 3.10 maximum of contact force maximum contact force while the pantograph passes over the ananlysis section 3.11 loss of contact condition when the contact force is zero 3.12 simulation method any numerical method that uses a fixed set of input parameters describing
27、 a system (e.g. pantograph/overhead contact line system) to calculate a set of output values representative of the dynamic behaviour of this system 3.13 pantograph model mathematical model describing the dynamic characteristics of the pantograph 3.14 massspringdampermodel method representing a dynam
28、ic mechanical system (e.g. pantograph) as a series of discrete concentrated masses connected together by spring and damper elements 3.15 transfer function of a pantograph ratio of an applied force to the response of the pantograph, depending on frequency. For example the apparent mass function, as r
29、atio of an applied sinusoidal force to the corresponding acceleration 3.16 collector head part of the pantograph supported by the frame, which includes contact strips, horns and may include a suspensionEN 50318:2002 6 3.17 overhead contact line model mathematical model in a two- or three-dimensional
30、 geometry describing the dynamic characteristics of an overhead contact line 3.18 wave propagation speed of the contact wire speed of a transversal wave, which runs along the contact wire 3.19 maximum uplift at the support maximum value of the vertical uplift at each support within the analysis sect
31、ion, while the pantograph passes 3.20 analysis section subset of the total overhead contact line model length which consists of those parts over which the passage of the pantographs is not influenced by initial transients and end effects of the model 3.21 frequency range of interest frequency range
32、within which the dynamic performance of the overhead contact line pantograph system is considered 4 Symbols F M mean value of contact force standard deviation of contact force 5 General The theoretical study of the dynamic interaction between pantograph and overhead contact line by computer simulati
33、on makes it possible, to obtain much information about the system and to minimise the costs of line tests. Depending on the phenomena to be studied, the frequency range of interest shall be defined in advance and shall be consistent with the pantograph model, overhead contact line model and simulati
34、on method and with the measurement system. The simulation method shall be assessed by the use of comparisons between the results of the simulation and line tests or by comparison with other validated simulation methods. A validation of the method shall be done in accordance with clause 10. In order
35、to be used with confidence the simulation method shall be evaluated. The evaluation for a simulation method shall be done with the two steps which are shown in Figure 1. 7 EN 50318:2002 Start validation Benchmark with reference model (see clause 11) Unchecked simulation method line test results cond
36、itions X n Step 1 validated simulation method validation acc. to sublause 10.1 for conditions X n step 2 validated simulation method for condition X n usable in ranges acc. to subclause 10.2 further conditions End validation 2 1 1 1 2 simulation input for conditions X nacc. to clause 6,7,8 n n y n y
37、 validation step 1 validation step 2 y Figure 1 Steps of evaluation subclauseEN 50318:2002 8 6 Modelling of the pantograph 6.1 General requirements A pantograph model shall describe the dynamic characteristics of a pantograph in the frequency range of interest. NOTE Possible modelling methods are di
38、screte mass-spring-damper-models, multi-body systems, finite-element-models or the transfer function of the pantograph. The characteristics of control and the dynamic characteristics of active pantographs shall be available for the modelling method. 6.2 Minimum data The following parameters of the p
39、antograph shall be available for simulation: kinematics; mass distribution; degree of freedom of joints; damping characteristics; spring characteristics; friction values; stiffness; bump stops; location of application of the static force; location of application of the aerodynamic forces. NOTE Aerod
40、ynamic forces usually depend on the orientation, operation height and position of the pantograph and the type of train. These parameters shall take into account other dependencies (operation height, stagger, non-linearities, frequency), if required. 7 Modelling of the overhead contact line 7.1 Gener
41、al requirements The model of the overhead contact line shall describe the dynamic characteristics in the frequency range of interest. The overhead contact line may be modelled with two- or three-dimensional geometry, depending on the phenomena to be investigated. If required, the overhead contact li
42、ne model shall be modelled including all tensioning equipment or any discrete components such as section insulators, insulated overlaps or others. 9 EN 50318:2002 7.2 Minimum data The following geometrical and mechanical parameters of an overhead contact line shall be available for simulation: lengt
43、h of overhead contact line model. The length of the overhead contact line model shall be at least three times the spacing between the first and last pantograph, with a minimum of 10 spans; length of each span; position of droppers; contact wire height (sag, dropper length, wire gradients); encumbran
44、ce at the supports; geometry and mass distribution of steady arms; stagger; number and characteristics of wires (contact wire, catenary wire, auxiliary wire, stitch wire, droppers, ); mass per unit length of the wires or density and cross-section; mechanical tension of wires. Where the tension depen
45、ds on temperature, this relationship shall be specified; mass of links between wires and droppers (clamps); the mechanical characteristics of the supports and structures; the stiffness characteristic of droppers. 8 Parameters of simulation The parameters of the pantograph and overhead contact line s
46、hall be given according to clauses 6 and 7. In addition, the following parameters shall be defined if applicable: train speed; analysis section; number of and distances between pantographs; static force of each pantograph; aerodynamic forces of each pantograph; operation height of the pantograph; wi
47、re temperatures; damping of the overhead contact line; frequency range of interest.EN 50318:2002 10 9 Output The simulation shall calculate the variation of the contact forces, the wire movements and the pantograph movements when the pantograph passes along the overhead contact line model. The outpu
48、t parameters shall be filtered to exclude frequencies outside the frequency range of interest. The outputs from the simulation shall be analysed over the analysis section. The following subclauses specify the outputs for a single pantograph. If the train has more than one pantograph, then the output
49、 shall be available for each pantograph. 9.1 Contact force Required outputs: mean value of the contact force F M ; standard deviation of the contact force ; statistical maximum and minimum of contact force; actual maximum and minimum of contact force; statistical distribution (histogram) of contact force. The time history of the contact force shall be available as output. 9.2 Wire displacement Required output: maximum uplift
