Probability distribution of HVDC capacity considering repairable and aging failures

This paper presents a method to calculate probability distribution of HVDC capacity considering both repairable and aging failures of HVDC components. With integration of the aging failure mode, the capacity probability distribution is varied with years. It can be used as a multiple state model of HVDC links in transmission reliability evaluation. The expected capacity obtained from the capacity probability distribution is an index to quantify and prioritise importance of HVDC components in reliability centred maintenance.