IEC EN 60919-2 Performance of High Voltage Direct Current (HVDC) Systems with Line-changing Converters - Part 2: Faults and Switching

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of IEC EN 60919-2 testing. This section of IEC EN 60919, a technical report, provides guidance on transient performance and fault protection requirements for high voltage direct current (HVDC) systems.

Relates to faults and switching-related transient performance for two-terminal HVDC systems using 12-pulse converter units consisting of three-phase bridge (bidirectional) connections, but does not cover multi-terminal HVDC transmission systems. However, certain features of parallel converters and parallel lines are covered if they are part of a two-terminal system. It is assumed that the converters use thyristor valves as bridge arms, use gapless metal oxide traps for insulation coordination, and are capable of power flow in both directions. Diode valves are not considered in this report.

In this report, which includes capacitor-swapping converter circuit configurations, only line-changing converters are discussed. General requirements for semiconductor line-changing converters are given in IEC EN 60146-1-1, IEC EN 60146-1-2 and IEC EN 60146-1-3. Voltage source converters are not considered.

Readers are cautioned to be aware of the difference between system performance specifications and equipment design specifications for individual components of a system. While equipment specifications and test requirements are not defined here, attention is drawn to those that may affect a system's performance specifications.

Note that detailed seismic performance requirements are excluded from this whitepaper. Also, these are not covered in detail due to the many possible variations between different HVDC systems. As a result, this report should not be used directly as a specification for a particular project, but rather should provide the basis for an appropriate specification for a particular electrical power transmission scheme, tailored to fit the actual system requirements. This report is not intended to distinguish between users' and manufacturers' responsibilities for the specified work.

EUROLAB assists manufacturers with IEC EN 60919-2 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.