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BS EN 62924:2017

BS EN 62924:2017

$189.07

Railway applications. Fixed installations. Stationary energy storage system for DC traction systems

Published By Publication Date Number of Pages
BSI 2017 46
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This document specifies the requirements and test methods for a stationary energy storage system to be introduced as a trackside installation and used in a power supply network of a DC electrified railway. This system can take electrical energy from the DC power supply network, store the energy, and supply the energy back to the DC power supply network when necessary. This document does not apply to onboard energy storage systems.

This document applies to systems which are installed to achieve one or more of the following objectives.

  • Absorption of regenerative energy:

    • effective use of regenerative energy (saving energy);

    • reduction of rolling stock maintenance (reduction of brake shoe/pad wear, etc.);

    • avoidance of adverse effects of heat generated during braking (e.g. in tunnels, etc.).

  • Power compensation:

    • compensation of line voltage;

    • reduction of peak power;

    • reduction in the requirement of the rectifier ratings.

If this system is combined with one or more of the following functions, this document may be used as a guideline:

  • reverse transmission of regenerated power to the upstream power supply network (e.g. inverting or reversible substations);

  • use of the regenerated energy for purposes other than the running of trains, such as for station facilities, etc.;

  • resistive consumption of regenerated power.

Although it is assumed that the system uses the following typical energy storage technologies, this document also applies to other existing or future technologies:

  • batteries (lithium-ion, nickel metal hydride, etc.);

  • capacitors (electric double layer capacitors, lithium-ion capacitors, etc.);

  • flywheels.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 English
CONTENTS
10 FOREWORD
12 INTRODUCTION
13 1 Scope
2 Normative references
14 3 Terms, definitions and abbreviations
3.1 Terms and definitions
18 3.2 Abbreviations
4 Configuration of stationary energy storage systems
4.1 General
Figures
Figure 1 – Common system configuration of stationary ESS
19 4.2 Example system configuration using an electronic power converter
4.3 Example system configuration without an electronic power converter
Figure 2 – Example system configuration using an electronic power converter
20 4.4 Accessory and auxiliary components
5 Service conditions
5.1 Environmental conditions
5.2 Electrical service conditions
6 Investigation before the installation of stationary ESS
6.1 General
Figure 3 – Example system configuration without an electronic power converter
21 6.2 Decision on the installation location and capacity of the stationary ESS
6.3 Evaluation of the positive effects of introducing a stationary ESS
6.4 Coordination with other systems
7 Performance requirements
7.1 General requirements
7.1.1 Rating
23 7.1.2 System capability to conform with the specified duty cycle
7.1.3 Short-time withstand current capability
7.1.4 Calculation of charge-discharge efficiency
24 7.1.5 Temperature rise
7.1.6 Lifetime requirements
7.2 Control and protection functions
7.2.1 Charge/discharge control functions
25 7.2.2 Short circuit protection function
7.2.3 Earth-fault protection function
7.2.4 Overload protection function
7.2.5 Disconnection functions
7.3 Electromagnetic compatibility (EMC)
7.4 Failure conditions for the stationary ESS
26 7.5 Mechanical characteristics
7.5.1 General
7.5.2 Earthing
7.5.3 Degree of protection
Tables
Table 1 – Immunity level
27 7.6 Rating plate
7.7 Terminals of the main circuit
8 Tests
8.1 Types of test
8.1.1 General
28 8.1.2 Type test
8.1.3 Routine test
8.1.4 Commissioning test
8.1.5 Test categories
29 8.2 Tests
8.2.1 Visual inspection
8.2.2 Degree of protection test
8.2.3 Test of accessory and auxiliary components
8.2.4 Insulation test
Table 2 – List of tests
30 8.2.5 Start and stop sequence test
8.2.6 Checking of the protective devices
8.2.7 Charge/discharge control functions test
8.2.8 Light load functional test
8.2.9 Temperature rise test
31 8.2.10 Measurement of charge-discharge efficiency
8.2.11 Noise measurement
8.2.12 EMC test
32 8.2.13 Harmonic measurement
33 Annex A (normative)Methods of simulation and measurement on site
A.1 General
A.2 System design to use simulation software
A.2.1 General
A.2.2 Simulation software
A.2.3 Input parameters for simulation
34 Table A.1 – Operational data
Table A.2 – Rolling stock data
35 A.2.4 Evaluation of simulation results
A.3 Validation of the effect of installing an actual ESS
A.3.1 General
A.3.2 Before installation
Table A.3 – DC power supply network data
36 A.3.3 After installation
Table A.4 – Measurement data
37 Annex B (informative)State of charge (SOC) and state of energy (SOE)for batteries and capacitors
B.1 Content of capacity and energy
B.1.1 General
Figure B.1 – Difference of capacity and energy content
38 B.1.2 Theoretical energy
B.1.3 Rated energy
B.1.4 Usable energy
39 B.1.5 Theoretical, rated and usable capacity
B.2 Content of SOC and SOE
B.2.1 General
40 B.2.2 Theoretical purpose
B.2.3 Common purpose
B.2.4 Effective or practical purpose
41 B.2.5 Coefficient of usage
42 Annex C (informative)Duty cycle examples
Table C.1 – Duty cycle
43 Figure C.1 – Duty cycle for class I to class III
Figure C.2 – Duty cycle for class IV to class VI
Figure C.3 – Duty cycle for class VII and class VIII
44 Figure C.4 – Duty cycle for class IX
45 Bibliography

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BS EN 62924:2017
$189.07