Predicting Spare Parts Inventory of Hydropower Stations and Substations Based on Combined Model

Figure 3

Prediction values based on the ARMA model. (a) Prediction values for LCD based on ARMA (1, 1). (b) Prediction values for CPU based on ARMA (2, 1). (c) Prediction values for DCPS based on ARMA (1, 0).

(a)

(b)

(c)