Modelling and control of the roll-stabilised control unit of a rotary steerable system directional drilling tool
| Autor: | Martin Bayliss, James F. Whidborne, Patrick Chi-Kwong Luk, Hamid Alturbeh |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Computer science motion control servo control rotary valve machine vector control Control unit Servo control Energy Engineering and Power Technology 02 engineering and technology permanent magnet machines field-oriented control Drill string drilling drilling (geotechnical) valves 020901 industrial engineering & automation Control theory voltage regulation roll-stabilised control unit roll-stabilised instrumented system approach Machine control directional drilling tool control unit Vector control voltage control General Engineering servomechanisms rotary steerable system directional drilling tool stability Motion control machine control lcsh:TA1-2040 synchronous machines Voltage regulation Bottom hole assembly control system synthesis lcsh:Engineering (General). Civil engineering (General) permanent magnet motors Software robust control closed loop systems |
| Zdroj: | The Journal of Engineering (2019) |
| Popis: | A directional drilling tool control unit whose design is based on servo control of a rotary valve using the roll-stabilised instrumented system approach has been successfully used in oil fields for over 20 years. Here, field-oriented control (FOC) is applied to cascaded voltage regulation and servo control using an open-loop plant model of the roll-stabilised control unit. The servo control is applied to the rotary valve so that drilling mud is ported in a geostationary direction despite the rotation of the drill string and the bottom hole assembly of the rotary steerable system. Voltage regulation is applied in order to provide a DC voltage bus for the servo control of the valve. A torquer or alternator, which is a type of permanent magnet synchronous machine, is the core of the roll stabilised control unit. So, a mathematical model of the torquer is derived. An FOC scheme is proposed for servo control and to provide a DC regulated voltage using the torquers. The algorithm is tested in MATLAB/Simulink. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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