π Case Study
Hornsea Project Three HVDC Substation Layout Reconfiguration
Space constraints forced relocation of AC/DC conversion equipment into single monopile, increasing electromagnetic interference (EMI) risk to control systems
ποΈ Project Overview
2.4 GW UK North Sea development (Γrsted)
π― Challenge
Space constraints forced relocation of AC/DC conversion equipment into single monopile, increasing electromagnetic interference (EMI) risk to control systems
π§ Design Approach
Full-wave 3D EM simulation (CST Studio Suite) + shielded fiber-optic I/O architecture + Faraday-cage partitioning of valve hall and control rooms
π Design Diagram
AI-generated project design illustration
π Key Calculations
Shielding Effectiveness
SE(dB) = 20 log(E_incident/E_transmitted)
Result: 82 dB @ 1 kHz
Exceeded IEC 61000-4-8 immunity requirement by 22 dB
π Results
Zero EMI-induced trip events during 12-month commissioning; achieved SIL-3 functional safety certificationπ‘ Lessons Learned
- β’EM simulation must include realistic grounding grid impedance
- β’Shielding effectiveness degrades significantly at cable entry points β require conductive gland systems
β Key Takeaways
- 1EM simulation must include realistic grounding grid impedance
- 2Shielding effectiveness degrades significantly at cable entry points β require conductive gland systems