Summary
The Technical Brochure (TB) reviews of current condition monitoring, diagnostic and prognostic methods and outlines recommendations to support the transition of HVDC substations toward predictive maintenance.
IT focuses on HVDC Voltage Source Converter (VSC) substations, particularly on VSC valves, i.e. power semiconductors, capacitors, valve-level power electronics and the cooling system.
Recommendations for advancing predictive maintenance in VSC-HVDC systems are given.
Table of content
1. Introduction
1.1. Background and Motivation
1.2. Scope and Objective
1.3. Structure of the Technical Brochure
2. The HVDC Substations and Components
2.1. Introduction - HVDC Systems Description
2.2. VSC Configurations
2.3. VSC Applications
2.4. Component Description
2.5. Operating Modes that Impact the Health Profile During the Lifespan
2.6. Critical Equipment Prone to Failure
3. Relation between Condition Monitoring, Diagnostic and Predictive Maintenance
3.1. Overview of Failure Experiences in HVDC Systems
3.2. VSC Valve Components Failure Modes
3.3. Condition Monitoring, Diagnostic and Predictive Maintenance Relationship
4. State of the Art of Condition Monitoring for HVDC Systems
4.1. Condition Monitoring Sensors and Failure Mechanisms and Health Condition
4.2. Methods to Obtain Component-Level Health Condition Indicators
4.3. Challenges and Future Needs
5. Diagnostics
5.1. Definition of the State of Health in Regards to Diagnostic
5.2. Estimation of the State of Health
5.3. Estimation of the Root Cause of Failure
6. Prognosis
6.1. Overview of the Prognosis Methods
6.2. Main Prognosis Methods
6.3. Prognosis of Power Components
6.4. How to Compute Reliability Prediction of the Overall Systems
6.5. Active Control Based on Health State to Match the Lifetime
6.6. Future Needs
7. Maintenance Strategies with Economic Lifespan
7.1. Definition of the Different Lifespan Cost
7.2. Traditional: Run to Failure and Maintenance at Regular Time
7.3. Preventive: Regular Maintenance and Reliability Centered Maintenance (RCM)
7.4. Predictive, Maintenance is carried out in Response to the Predicted Component Condition
7.5. Maintenance Strategies Comparison
7.6. Redundancy
7.7. Obsolescence, Replacement and Spares Strategy Impact on Maintenance
8. Guidelines of Maintenance Strategies and Business Model in Regards to Reliability and Cost Effectiveness in HVDC Systems
8.1. Introduction
8.2. Company Business Models
8.3. Interest in Predictive Maintenance for Each Business Model
8.4. Company O&M Organisation
8.5. Contractual Aspects
8.6. Spare Parts & Logistics Strategy
8.7. Associated Costs
8.8. Case Study
8.9. Discussions
9. Conclusion and Recommendations
Appendix A Abbreviations, Definitions and Symbols
A.1. CIGRE Terms
A.2. Organisation Acronyms
A.3. Specific Terms in this TB
A.4. Symbols
A.5. Definitions
Appendix B Links and References
B.1. Standards
B.2. CIGRE Technical Brochures
B.3. References
B.4. HVDC Projects
B.5. Acknowledgements
Appendix C Questionnaire
C.1. Questionnaire Introduction and Scope
C.2. Questionnaire Answers
C.3. Monitoring and Maintenance difference Depending of the Converter Location, Topology
C.4. Maintenance Strategy
Additional informations
| Publication type | Technical Brochures |
|---|---|
| Reference | 982 |
| Publication year | |
| Publisher | CIGRE |
| ISBN | 978-2-85873-687-4 |
| Study committees | |
| Working groups | WG B4.89 |
| File size | 7 MB |
| Pages number | 149 |
| Price for non member | 270 € |
| Price for member | Free |
Authors
Nadine CHAPALAIN, Convenor (FR), Harry EVANS, Secretary (UK)
Rick VALIQUETTE (CA), Christian RAUSCHER (DE) Huai WANG (DK), Gowdhaman GANESAN (SE) Guy CLERC (FR), Samy AKKARI (FR) Lyle CROWE (CA), Faiva WADAWASINA (UK) Guillaume GALLET (FR), Angus BRYANT (UK), Jin ZHENG (CN), Luis GUIMARAES (PT), Hongfei MA (DK)
Keywords
HVDC, VSC valves, Cooling, Condition monitoring, Diagnostic, Prognostic, Maintenance Strategies, Digital Twin, Health indicators, Heath index, RUL, O&M
