Generic Characteristic Analysis on Traction Substation Operation

摘要

In electrified railway traction supply systems, operation qualities and reliabilities of the transformer loop is higher, but ones of bus output units is comparatively low. The main loop still works when output loops are in failure, and the connection formation between them is in series. Traditional reliability analysis methods let their lifetime follow exponential distribution, and reliability is investigated based on the minimal path sets, which lead to a comparatively rough result, consequently. According to Markov theory, in this paper the main loop life is considered as mixed Erlang distribution with order n, and the output unit life follows generic distribution. As compared with conventional series systems, the acquired results are reliable and ubiquitous.