Abstract:

In order to overcome the performance deficiencies of the hydraulic system in old drilling machine, and satisfy the need of high power drilling and the complex drilling control,we design and build a testing drill system, which has the ability of monitoring, recording and controlling the drilling parameters in realtime. We adopt the ameliorat PID（Proportional Integral and Differential） algorithm and fuzzyPID control algorithm, to improve the stability and accuracy to achieve good control effect of the system. Within the set range, the average error is about 10%, achieving good results.

Key words: drill rig；drilling parameters, electro-hydraulic proportional control, PID control algorithm, Fuzzy-PID control algorithm