Summary

This TB updates TB 590

Recognizing the potential value of the experience gained from HVDC transmission systems across the industry, CIGRE Study Committee 14 established Working Group 04, which was later renamed as Advisory Group 04 (AG B4.04 - HVDC and FACTS Performance), with terms of reference that included the responsibility of collecting data on HVDC systems in commercial service. It was considered that such information could be useful in the planning, design, construction and operation of new projects. Additionally, it was envisioned that sharing operational performance data would benefit those managing existing HVDC links and those planning new ones. It became evident that such reports should be prepared using a standardized approach, enabling the accumulation of data from multiple systems over time to establish a reliable basis for performance evaluation. There have been two iterations of the Protocol issued as Technical Brochures TB 346 and TB 590 for reporting. As HVDC technology has advanced over the years, this updated revision extends the Protocol to address emerging developments, such as DC Grids, Multi-terminal Systems, DC Switchgear and Switching Stations, and Offshore Wind DC Transmission.

Table of content

Executive summary 
Figures 
1. Scope of Reporting Scheme
2. Preparation and Distribution of Reports
3. Definitions

3.1 Outage Terms 
3.2 Capacity Terms
3.3 Outage Duration Terms
3.4 Time Categories 
3.5 Availability and Utilization Terms
3.6 Commutation Failure Performance Terms (Not applicable to VSC systems)

4. Equipment and Fault Category Terms

4.1 A.C. and Auxiliary Equipment AC-E
4.2 Valves V 
4.3 DC Control and Protection Equipment C-P
4.4 Primary D.C. Equipment DC-E 
4.5 Other O
4.6 DC Transmission Line TL
4.7 External AC System EXT
4.8 Severity Code 
4.9 Restoration Code

5. Instructions for Compilation of Report 

5.1 General Instructions
5.2 Instructions for Table 1 and Table 1 M/S- Appendix E
5.3 Instructions for Table 2 FS and Table 2 SS – Appendix E
5.4 Instructions for Table 3 – Appendix E 
5.5 Instructions for Table 4 – Appendix E (Not Applicable to VSC systems) 
5.6 Instructions for Table 5 – Appendix E
5.7 Instructions for Table 6 - Appendix E

6. Guidelines for Interpretation of Events

6.1 Calculation of Outage Duration
6.2 External Events
6.3 Protective Operation
6.4 Special Controls 

APPENDIX A. Abbreviations 
APPENDIX B. Links and references
APPENDIX C. An Example of an Outage Log 
APPENDIX D. Fault Category Codes
APPENDIX E. Report on the Operational Performance 

Additional informations

Publication type Technical Brochures
Reference 956
Publication year
Publisher CIGRE
ISBN 978-2-85873-661-4
Study committees
Working groups WG B4.04
File size 2 MB
Pages number 42
Price for non member 90 €
Price for member Free

Authors

Sergio DO ESPIRITO SANTO, Convenor (BR), Neil KIRBY, Secretary (US)

Abhay KUMAR (Jain) (SE), Krister AKMAN (SE), Carsten BARTZSCH (DE), Yanny FU (NL)

Keywords

Operational performance of HVDC, LCC HVDC, VSC HVDC, reliablity, availability, forced outage, scheduled outage, unavailbility

Protocol for Reporting the Operational Performance of HVDC Systems
Protocol for Reporting the Operational Performance of HVDC Systems