Reliability, Availability, Maintainability and Safety (RAMS) - Application for Self-Contained Power Supply of Gotthard Base Railway Tunnel

Transcription

1 2014 ARS, Europe: Paris, France Red Room, Begins at 3:30 PM, Wednesday, April 23rd Reliability, Availability, Maintainability and Safety (RAMS) - Application for Self-Contained Power Supply of Gotthard Base Railway Tunnel Dr. Andreas van Linn Amstein+Walthert Progress Andreasstrasse Zürich

2 The following presentation was delivered at the: PRESENTATION SLIDES International Applied Reliability Symposium, Europe April 23-25, 2014: Paris, France The International Applied Reliability Symposium (ARS) is intended to be a forum for reliability and maintainability practitioners within industry and government to discuss their success stories and lessons learned regarding the application of reliability techniques to meet real world challenges. Each year, the ARS issues an open "Call for Presentations" at and the presentations delivered at the Symposium are selected on the basis of the presentation proposals received. Although the ARS may edit the presentation materials as needed to make them ready to print, the content of the presentation is solely the responsibility of the author. Publication of these presentation materials in the ARS Proceedings does not imply that the information and methods described in the presentation have been verified or endorsed by the ARS and/or its organizers. The publication of these materials in the ARS presentation format is Copyright 2014 by the ARS, All Rights Reserved.

3 Agenda Project - Introduction Requirements Reliability Prediction RAMS - Life Cycle Management Conclusion Questions 5 min 10 min 20 min 10 min 5 min 10 min Slide Number: 2

4 Project - Introduction Gotthard Base Tunnel AlpTransit Gotthard AG Slide Number: 3

5 Project - Introduction AlpTransit Gotthard AG Gotthard Base Tunnel North portal: Erstfeld South portal: Bodio 2 x 57 km single-track tubes Crossways all 325 m Considering all connecting tunnels, the system length measures 152 km Rock cover: 2300 m 2 x multifunctional sites (MFS) with emergency stops Slide Number: 4

6 Project - Introduction The first flat trajectory railway through the Alps AlpTransit Gotthard AG Slide Number: 5

7 Project - Introduction Tunnel System of the Gotthard Base Tunnel Multifunctional site (MFS) Intermediate excavation and shafts Sedrun Emergency stop Access tunnel Shaft Shaft Multifunctional site (MFS) Access tunnel Cable tunnel Emergency stop Crossway AlpTransit Gotthard AG Slide Number: 6

8 Project - Introduction Organisation Operator: SBB AG Client: Alp Transit Gotthard AG General contractor rail-engineering: Transtec Gotthard: General partner: Alpiq Alcatel-Lucent/Thales Renaissance Construction Balfour Beatty Rail Slide Number: 7

9 Project - Introduction Maintenance Group / Lot Sub-Contractor Area of Expertise Sub-Arge BBR / RC Sub-Arge BBR / K+M Sub-Arge ALU / TRSS Rail track Power supply 50 Hz and cables Rail power supply 16.7 Hz Signalling, control and communication Slide Number: 8

10 Project Partner Company Area of Expertise Service Package (LP) Andrew Radio communicaton LP70 Avesco No Break LP22; LP40 Ascom Service communication (BKA) LP61 Hirschmann Access; telecommunication LP61 Keymile UMUX; network components LP80; LP81; LP82; LP83 ABB Secheron Medium-high voltage LP40 Siemens Control system; IT LP60 Swisscom Solutions Cisco; network components LP61 Leoni-Studer Cable systems LP22; LP40; LP41; LP42; LP43; LP44 Swibox Electrical connection cabinets LP45 Pöyry Planning-coordination, management support LP10 Grunder Ingenieure Survey and mapping LP30; LP31; LP32; LP33 ABB Schweiz Transformer LP40 Planning, RAMS, PQM, Scheuchzer Realisation LP30; LP31 LP40; LP41; LP42; LP43; LP44; LP45; LP46; LP47 Alpha Plan Planning LP40; LP41; LP42; LP43; LP44; LP45; LP46; LP47 Hefti, Hess, Martignoni Planning; consulting LP40; LP41; LP42; LP43; LP44; LP45; LP46; LP47; LP22 Slide Number: 9

11 Requirements According To Reliability Based on EN 50126: Railway applications The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) Slide Number: 10

12 Requirements According To Reliability Disturbance rate per year Rail Track Complete System Railway Technology 50Hz and Cables Disturbance Class (SK) SK 1 SK 2 SK 3 SK Rail Power Supply 16,7Hz TC-Fixed Network TC- Radiocom. Safety Devices Rail System Switch Points Switchgear panels Cable systems El. Lighting El. Cabinets Signs Handrail Overhead contact lines and cables Switching Stations Control and comm. sytem El. grounding Protective section north Tunnel control system Data network Service comm. TC- Radiocomm. Railway control system ETCS Level 2 Train control and comm. system Slide Number: 11

13 Disturbance Classes (SK) Definition of disturbance classes 1-4 Factors Influence on train s schedule Elimination with/without intervention on trail Blocking of route sections AlpTransit Gotthard AG Slide Number: 12

14 Disturbance Classes Class Influence On Railway System Example 1 No longer than 1h influence on timetable stability. The sum of delays of directly affected trains is less than 10 minutes. 2 More than 1h influence on timetable stability. The sum of delays of directly affected trains is more than 10 minutes. 3 Immediate blocking of one track section as result of failure or for fault repair. 4 Immediate blocking of more than one track sections (one track) or total blocking (both tracks). Emergency braking of a train because of system failure. Local outage of GSM-R for one minute. Disturbance of wheel-counting apparatus driving on sight. Switch points not in final position and impassable. Railbreakage (ultrasonic failure). Enduring outage of overhead contact line. Total failure of signalling / safety devices Total outage of GSM-R Slide Number: 13

15 Requirements for 50Hz and Cable Subsystem 1: Standard power supply centre Sedrun (medium voltage) 2: Standard power supply centre Sedrun (low voltage) 3: Standby power supply centre Sedrun (low voltage) 4: Standard power supply transverse tunnel (low voltage) 5: Standby power supply transverse tunnel (low voltage) Availability % % % % % Slide Number: 14

16 Transformer Example: Subsystem 3 Cables No Break Diesel: Uninterruptible Power Supply (UPS) Circuit Breaker Static Transfer System (STS) Consumer Load Fuse Slide Number: 15

17 Requirements Additional requirements on Maintainability o Based on maintainability concepts of SBB Safety o Based on Quantitative Risk Analyses (QRA) from SBB Slide Number: 16

18 Reliability Prediction The basic principle of reliability prediction and integration of single results of one Subsystem into the complete tunnel system is described. This includes: o Basic component data o RAM-interfaces o Reliability calculations o Disruption protocol The bottom up approach The Causer principle Slide Number: 17

19 Reliability Prediction Up additional 4 Disruption protocol Bottom single 3 Reliability calculation single single & multiple single ; SK 1 Components 2 RAM-interfaces Slide Number: 18

20 Components Single Failure List Up additional 4 Disruption protocol Bottom 1 Components single 3 Reliability calculation single single & multiple single ; SK 2 RAM-interfaces Slide Number: 19

21 Components Single Failure List Up Transformer No Break Diesel: Uninterruptible Power Supply (UPS) Circuit Breaker Static Transfer System (STS) Fuse Bottom Describe Failure Mode, Cause, Effects Certificate Producer Specifications Benchmarks Statistics Basic Data MTBF (Mean Time Between Failure) MTTR (Mean Time To Repair) Slide Number: 20

22 Components Basic Data Example 1: Up No Break Diesel: Uninterruptible Power Supply (UPS) Certificate Producer Specifications Bottom Basic Data MTBF [a] = 42.2 MTTR [h] = 8 Slide Number: 21

23 Components Basic Data Example 2: Up Certificate Producer Specifications Static Transfer System (STS) Bottom Basic Data MTBF [h] = MTTR [h] = 4 Slide Number: 22

24 RAM-Interfaces Up additional 4 Disruption protocol Bottom 1 Components single 3 Reliability calculation single single & multiple single ; SK 2 RAM-interfaces Slide Number: 23

25 RAM-Interfaces - Matrix High complexity Hundreds of technical interfaces Slide Number: 24

26 RAM-Interfaces - Causer Principle Investigate each component failure and combinations (source) on the effect of each consumer (sink). Determine disruption class. Protocol in RAM-interfaces lists. Slide Number: 25

27 RAM-Interfaces Example Effect Location 1 Components Failure mode 2 RAM-interfaces single Single or combined single & multiple Cause ID Source Sink additional single 3 Reliability calculation 4 Disruption protocol single ; SK Criticality disruption class FMECA (Failure mode, effects and criticality analysis) Slide Number: 26

28 Reliability Calculation Up additional 4 Disruption protocol Reliability Block Diagrams (RBA) Bottom single single 3 Reliability calculation single & multiple single ; SK 1 Components 2 RAM-interfaces Slide Number: 27

29 Reliability Calculation Basic Formula Reliability Up Availability In Series Bottom Slide Number: 28

30 Reliability Calculation Basic Formula Up In Parallel Bottom Slide Number: 29

31 Reliability Calculation Basic Formula Up Considering Common Cause Failures in Parallel Systems Determine β-factor according to ( IEC:2010) Bottom Slide Number: 30

32 Reliability Calculation Basic Formula Considering Common Cause Up Failures in Parallel Systems β = 1 % Example: R 1 =R 2 =R Bottom Slide Number: 31

33 Disruption Protocol Up additional 4 Disruption protocol Bottom single 3 Reliability calculation single single & multiple single ; SK 1 Components 2 RAM-interfaces Slide Number: 32

34 Disruption Protocol ID Location Source function Source lot Interfaces Description 1 row for each source sink interface with disturbance class > SK0 Slide Number: 33

35 Disruption Protocol Failure mode Effect Cause Detection FMECA Interfaces sink Criticality disruption class Slide Number: 34

36 Disruption Protocol Failure rate per Element/Subsystem MTTR Availability Quantity Total failure rate [1/h] Total failure rate [1/a] Disruption Rate of all rows belonging to the same disturbance class (SK1-4): Total Disruption rate per SK for railway technique Slide Number: 35

37 RAMS - Life Cycle Management It is not only the prediction of reliabilities but also the monitoring of the project from a RAMS point of view during the whole life cycle of the GBT. The management comprises: o Verification o Validation o Integration of RAMS-process into the general project management to practically use synergy effects. Slide Number: 36

38 RAMS - Life Cycle Management 1 Concept V-Modell 12 Capture performance 2 System definition 3 Risk analysis 11 Operation; maintenance 14 Suspension; disposal operation 13 Change; retrofiting 4 System requirements 10 Approval; acceptance 5 Assignment 9 System validation 6 Construction 8 Installation 7 Fabrication Slide Number: 37

39 Verification - Validation 1 Concept V-Modell 12 Capture performance Specification 2 System definition 3 Risk analysis 11 Operation; maintenance 14 Suspension; disposal Validation operation 13 Change; retrofiting 4 System requirements 10 Approval; acceptance Verification 5 Assignment 9 System validation 6 Construction 8 Installation 7 Fabrication Implementation Slide Number: 38

40 RAMS - Other Management Systems Quality Project specific PQM Validation Serviceability Operating system Supporting Systems: FRACAS (Failure Reporting, Analysis and Corrective Action System) MSMT (Maintenance Service Management Tool) Risk Management RAMS RAMS Operating system Slide Number: 39

41 Conclusion Project still ongoing. High complexity. Different calculation methods (Fault Tree Analysis - FTA, Reliability Block Diagram RBD, ) for different subsystems / lots. Not one calculation model for the whole system. Quantities are implicitly resolved by the interfaces analysis and the Causer Principle. Requirements for reliability (50Hz and cable system) met by direct RBD calculations. RAMS is one management system in addition to others, but each with its own focus. Use synergies with PQM, Validation, Slide Number: 40

42 Outlook Application of the RAMS method is also interesting in fields other than railway engineering. Data centers Roads Research Slide Number: 41

43 Contact Andreas van Linn Dr.-Ing. Senior Consultant, Risk Management Amstein + Walthert Progress AG Andreasstrasse 11, Postfach, CH-8050 Zürich andreas.vanlinn@amstein-walthert.ch Slide Number: 42

44 Questions Thank you for your attention. Do you have any questions Slide Number: 43