VSC-HVDC Control and Protection Strategies for Offshore Wind Integration

⚡ AI Executive Summary

This comprehensive review examines the technologies and system design approaches needed to reliably integrate large offshore wind farms using voltage-source converter high-voltage direct-current transmission systems. The paper synthesizes current knowledge on converter architectures, multilevel modular topologies, and multi-terminal DC network configurations, while analyzing how different control strategies—from conventional to advanced intelligent methods—perform under normal and fault conditions. The integration of offshore wind via VSC-HVDC presents the power systems community with a critical challenge: achieving coordinated operation between transmission, converter control, and protection functions in DC environments where fault behavior and isolation mechanisms differ fundamentally from AC grids. Grid planners and equipment manufacturers must move beyond siloed design of these three domains and adopt co-optimized approaches that balance dynamic stability, fault resilience, and economic viability. The ongoing questions around multi-terminal DC grid scalability, real-time cybersecurity, and techno-economic trade-offs underscore that no single technical solution yet dominates; rather, future projects will require site-specific tuning of architecture, control algorithms, and protection coordination to unlock the full potential of offshore wind as a major carbon-free generation source.