engleski

Control system design, verification and stability analysis for drill-string and mud pump electrical drives for drilling operations

This report elaborates in detail the design, verification and stability analysis of control systems targeted for oil drilling facility electrical drives. The aim of this report is to provide a comprehensive picture of the controlled electrical drive behavior for: (i) rotary drill-string electrical drive (top-drive control system), (ii) draw-works electrical drive for longitudinal drill-string motion (WoB/RoP control system), and (iii) coordinated control system for multiple speed-controlled mud pump drives. This report also introduces a novel cross-coupling control system between the rotary and the draw-works drive, which can prevent the occurrence of large torsional torques in vertical drilling conditions by automatically adjusting the weight-on-bit (WoB) target value.

Control system design ; simulation verification ; stability analysis ; drill-string drive ; hoist winch drive ; mud pump drive

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