A Sliding Mode Control Based Stabilization Method for Directional Rotary Steering Tool-Face

Abstract

When the directional rotary steering system works in the state of maintaining the tool face angle, the use of PID control mode will lead to a large swing angle of the tool face angle of the directional rotary steering system. In order to reduce the swing amplitude of the tool face angle, based on the PID position control and the angle position error sliding mode control strategy, the exponential synovial control function is established. The simulation results show that the fast and accurate tool face angle tracking is achieved through the closed-loop control of the angle position. The paper provides an implementation method for the research of directional rotary steering system.

Keywords

• permanent magnet synchronous motor
• rotary steering system (RSS)
• sliding mode control
• stabilized platform
• tool face