Job Purpose
Provide specialist technical oversight for the ±500 kV VSC-HVDC terminal stations, including converter technology, AC/DC system interfaces, converter transformers, valves, reactors, filters, control, protection and system integration.
Key Responsibilities
- Review the overall HVDC system architecture, design criteria and technical interfaces.
- Review OEM documents for VSC converters, converter valves, converter transformers and associated auxiliaries.
- Review AC/DC filters, phase reactors, smoothing reactors, harmonic filters and reactive-power equipment.
- Review station control, pole control, valve control, protection, monitoring and sequence-of-events systems.
- Review operating modes, power-control functions, voltage and reactive-power control and system recovery philosophy.
- Review control and protection coordination between the HVDC system, AC substations, grid protection, SCADA and telecom systems.
- Review applicable system studies, including load flow, short circuit, harmonic, insulation coordination, overvoltage, dynamic-performance and electromagnetic-interference studies.
- Verify technical interfaces between converter transformers, valves, cooling systems, control systems and station auxiliaries.
- Review converter hall, valve hall, equipment-layout and environmental requirements.
- Review OEM manufacturing, installation, testing and commissioning procedures.
- Participate in design reviews, interface meetings, model-validation reviews and technical workshops.
- Review control and protection settings, logic diagrams, interlocks, trip matrices and functional specifications.
- Review factory and site testing documentation where included in the contracted scope.
- Support resolution of complex technical issues during installation, testing and system integration.
- Review readiness for subsystem testing, station integration, energization and trial operation.
- Advise the Client on HVDC performance risks, OEM deviations, design gaps and mitigation measures.
- Support review of as-built documentation, operating manuals and training requirements.
Key Deliverables
- HVDC design and OEM-document review comments.
- HVDC interface register.
- Control and protection review report.
- System-study review memorandum.
- HVDC technical-risk register.
- Testing and commissioning-readiness assessment.
- Final HVDC technical-compliance report.