IEC/TR 62672:2018 en

Reliability and availability evaluation of HVDC systems

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Status Definitief
Aantal pagina's 45
Commissie High Voltage Direct Current (HVDC)
Gepubliceerd op 01-09-2018
Taal Engels
IEC/TR 62672 applies to all line-commutated and voltage-sourced high-voltage direct current (HVDC) transmission systems used for power exchange in utility systems. In order to assess the operational performance of HVDC transmission systems, reliability and availability are evaluated. The intention of the performance evaluation is to identify further design improvements. For this purpose the HVDC users/owners are encouraged to compile reports on an annual basis based on the recommendations given in this document. The purpose of this document is to define a standardized reporting protocol so that data collected from different HVDC transmission systems can be compared on an equitable basis. Such reports can be sent to Cigré SC B4, “HVDC and Power Electronics” ( which collects such data and publishes it in a survey of HVDC systems throughout the world on a biannual basis. This document covers point-to-point transmission systems, back-to-back interconnections and multi-terminal transmission systems. For point-to-point systems and back-to-back interconnections, i.e. two-terminal systems, statistics are reported based on the total transmission capability from the sending end to the receiving end measured at a given point. If, however, the two terminals are operated by different users/owners, or are composed of equipment of a different vintage or of equipment from different suppliers, statistics can be reported on an individual station basis if so desired by those responsible for reporting. In such a case, the outage is only reported under the originating converter station, taking care not to report the same event twice. For multi-terminal systems, i.e. systems with more than two terminals, statistics are reported separately for each converter station based on its own individual capability. Multi-terminal systems, incorporating parallel converters but having only two converter stations on the DC line, can be considered as either point-to-point systems or as multiterminal systems for purpose of reporting. Therefore, statistics for this special type of multiterminal system can be reported based on either total transmission capability or on individual station capability. If the converters at one station use different technology, converter station statistics can be reported separately for each different type of capacity if desired. Multiple bipoles are also reported individually. Special mention is given in the text and in the tabulations to any common events resulting in bipolar outages.


ICS-code 29.240.01
Engelse titel Reliability and availability evaluation of HVDC systems



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