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This session explores the operational challenges and interaction phenomena introduced by HVDC, STATCOM, and other power electronics-based technologies in modern transmission systems. Presentations will cover real-world studies, safety considerations, advanced measurement methods, and innovative control strategies to enhance system stability and resilience.
Session Abstract
The rapid deployment of power electronics-based transmission technologies, such as HVDC and STATCOM systems, is enabling the integration of renewable energy sources and reinforcing long-distance power transfers. However, these technologies introduce new technical challenges in system operation, safety, and equipment coordination. This session brings together a diverse set of studies addressing critical interaction phenomena and mitigation strategies. Topics include sub-synchronous torsional interaction analysis in the South Korean power system using real-time simulation, overvoltage and safety considerations for coupled parallel DC transmission lines, and innovative control strategies for power oscillation damping via grid-forming HVDC converters. The impact of HVDC transmission on parallel underground pipeline infrastructure will also be explored, alongside advanced measurement techniques for harmonic impedance in VSC-HVDC systems. Complementary contributions investigate STATCOM control interactions with offshore transmission cable resonances and the development of wide-band active damping solutions. Together, these works provide valuable insights into ensuring secure, reliable, and resilient operation of modern power systems in the era of high penetration of power electronics.
Presentations
2:00pm - 2:15pm
The experience of the Sub-Synchronous Torsional Interaction study based on the Real Time Simulator for the South Korea Power System
hyunkeun Ku, gumin Kwon, injoo Jeong, sehwan Joo, hyeonggeun Kim, jaekoon Kim, chulsoo Seo, jeonghoon Shin
KEPCO, Korea, Republic of (South Korea)
2:15pm - 2:30pm
Overvoltage Considerations of coupled parallel DC transmission lines in terms of earthing and work safety
Volker Vahrenholt1, Felix Hamann2, Chandana Karawita3, Raveen Gunarath3
150Hertz Transmission GmbH, Germany; 2AFRY Deutschland GmbH; 3TransGrid Solutions Inc.
2:30pm - 2:45pm
Power Oscillation Damping using Grid-Forming HVDC Converters
Saman Dadjo Tavakoli, Shahab Karrari, Ngoc Tuan Trinh, André Schön, Robert Renner
Siemens Energy, Germany
2:45pm - 3:00pm
Influence of HVDC Transmission on Parallel Underground Pipeline Infrastructure
