Job Description

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 energetic 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.

📌 HVDC/ VSC System Expert- Substation/HVDC (Olpad)
🏢 Aecom
📍 Olpad