Service Life Prediction of Electrolytic Capacitors in Urban Rail Transit Based on Analytical Iteration and GM Model

Figure 8

The service life prediction with GM model, with GM model, and with conventional model. --: prediction with GM model; -∘-: actual damage degree along with service time; -⋄-: prediction with GM() model; --: prediction with conventional model.

(a) The prediction result under 50% and of 55°C

(b) The prediction result under 100% and of 55°C

(c) The prediction result under 50 and of 55°C

(d) The prediction result under varying and of 55°C

(e) The prediction result under varying and 50%