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| Content Provider | IET Digital Library |
|---|---|
| Author | Alturbeh, Hamid Whidborne, James F. Luk, Patrick Bayliss, Martin |
| Abstract | 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. |
| Starting Page | 4555 |
| Ending Page | 4559 |
| Page Count | 5 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 17, Jun (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/17 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8211 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2019-01-22 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
| Subject Keyword | Closed Loop System Control Application in Machining Processes And Machine Tools Control of Electric Power System Control System Analysis Control System Synthesis Control Technology And Theory Directional Drilling Tool Control Unit Drilling Drilling (geotechnical) Field-oriented Control Machine Control Machine Vector Control Machining Motion Control Permanent Magnet Machine Permanent Magnet Motors Robust Control Roll-stabilised Control Unit Roll-stabilised Instrumented System Approach Rotary Steerable System Directional Drilling Tool Rotary Valve Servo Control Servomechanisms Small And Special Purpose Electric Machine Spatial Variables Control Stability Stability in Control Theory Synchronous Machine Synthesis Method Valves Voltage Control Voltage Regulation |
| Content Type | Text |
| Resource Type | Article |
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