Research Article

Intelligent Control Strategy of Electrohydraulic Drive System for Raising Boring Power Head

Table 2

Comparison of different combination strategies and control indicators.

CombinationDynamic index
Standard varianceOvershoot (%)Stabilization time (S)

PSO-PID0.0630930.17210.84
GA-PID0.0630930.12170.84
WOA-PID0.036248.350.1
PSO-FOPID0.063492.81970.51
GA-FOPID0.037786.93090.16
WOA-FOPID0.035350.121370.02