HVDC Transmission Systems

Expert Consulting Services

HVDC transmission systems are increasing in popularity due to the controllability of power flow, absence of short-circuit current contribution and the inherent technical and economic advantages of HVDC where moderate to long lengths of underwater or underground cables are needed.

HVDC systems can be designed to integrate with virtually any transmission system, but successful integration requires attention to the wide range of system issues unique to HVDC, such as:

  • Reactive management
  • Overvoltage performance
  • Harmonic performance
  • Torsional interaction
  • Power line carrier interference
  • System transient and dynamic stability
  • HVDC control stability
  • We can provide a wide range of expert consulting services of value to the operator or owner of a power system to which a merchant HVDC system may be attached. These services include:

    • HVDC system interconnection specifications
    • Feasibility studies
    • System and commercial impact studies
    • Functional interconnection requirement studies
    • Interconnection technical proposal evaluation
    • Merchant design study compliance review
    • HVDC technology seminars
    • Evaluation of post-commissioning performance