HVDC/VSC Systems Expert – Substation & HVDC

Job description

Company Description At AECOM, we’re delivering a better world. We believe infrastructure creates opportunity for everyone. Whether it’s improving your commute, keeping the lights on, providing access to clean water or transforming skylines, our work helps people and communities thrive. Our clients trust us to bring together the best people, ideas, technical expertise and digital solutions to our work in transportation, buildings, water, the environment and new energy. We’re one global team – 47,000 strong – driven by a common purpose to deliver a better world. Job Description 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. Qualifications Minimum Qualification and Experience Bachelor's or master's degree in Electrical Engineering, Power Systems or Power Electronics. Minimum 12 years of experience in HVDC, FACTS, power-electronic converter systems or EHV system integration. Demonstrated experience with VSC-HVDC or comparable converter-based transmission systems. Knowledge of HVDC control, protection, system studies, converter transformers, valves and harmonic performance. Experience in OEM design review, testing and commissioning is preferred. Additional Information 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. At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment. About AECOM AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. What makes AECOM a great place to work You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community - where you have the freedom to grow in a world of opportunity. As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.