HVDC/ VSC System Expert- Substation/HVDC

Position Overview:

Provide specialist technical oversight for ±500 kV VSC-HVDC terminal stations, including converter technology, AC/DC system interfaces, converter transformers, valves, reactors, filters, control systems, protection systems, and overall system integration to ensure compliance with project requirements and industry standards.

Key Responsibilities:

• Review overall HVDC system architecture, design criteria, technical specifications, and interface requirements across the complete VSC-HVDC scheme.
• Review OEM design documentation for VSC converters, converter transformers, valves, DC equipment, AC equipment, and associated auxiliary systems.
• Assess the design and performance of AC/DC filters, smoothing reactors, harmonic filters, reactive power compensation systems, and associated equipment.
• Review station control, HVDC control, valve control, protection systems, monitoring systems, and sequence-of-events functionality.
• Evaluate operating philosophies, power control functions, voltage control strategies, reactive power control, black-start capability, and system recovery arrangements.
• Review protection coordination between the HVDC system, AC substations, converter stations, grid protection systems, SCADA, and telecommunication networks.
• Assess and review system studies including load flow, short-circuit, harmonic performance, insulation coordination, overvoltage analysis, electromagnetic interference, and dynamic performance studies.
• Verify technical interfaces between converter transformers, valves, cooling systems, control systems, communication systems, and station auxiliary equipment.
• Review OEM manufacturing processes, factory acceptance testing (FAT), installation procedures, site acceptance testing (SAT), and commissioning methodologies.
• Participate in design reviews, engineering workshops, technical audits, risk assessments, and technical resolution meetings.
• Review control and protection settings, logic diagrams, interlocks, operational philosophies, and functional specifications.
• Witness and review factory and site testing activities where contractually required, ensuring compliance with approved procedures and performance requirements.
• Support technical issue resolution during installation, integration, testing, energization, and trial operation phases.
• Monitor subsystem testing, integrated system testing, station energization, and operational readiness activities.
• Identify technical risks, design gaps, performance concerns, and interface issues, providing mitigation recommendations and corrective actions.
• Review as-built documentation, operation and maintenance manuals, training materials, and handover documentation prior to project closeout.
• Coordinate with Substation, Protection & Control, SCADA, Telecommunications, and Grid Integration teams to ensure seamless interface management and system integration.

Principal Client-Facing Outputs

• HVDC Design Review and Technical Assurance Report.
• OEM Design and Documentation Review Comments.
• HVDC System Interface and Integration Assessment.
• Converter Control and Protection Review Report.
• Power System Study Review Memorandum.
• HVDC Technical Risk Register and Mitigation Plan.
• Factory and Site Testing Assessment Reports.
• Commissioning and Energization Readiness Assessment.
• Technical Compliance and Performance Verification Report.
• Final HVDC Technical Assurance and Handover Report.