Perancangan Sistem Kendali pada Platform Semi-Submersible Menggunakan Metode Linier Quadratic Gaussian (LQG)

Hikmadiyar, Riza Aris (2015) Perancangan Sistem Kendali pada Platform Semi-Submersible Menggunakan Metode Linier Quadratic Gaussian (LQG). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Teknologi kelautan berkembang sangat pesat dalam upaya mengekplorasi dan mengekploitasi sumber daya alam yang ada di laut terutama minyak bumi dan gas, sehingga banyak bangunan apung di laut untuk keperluan tersebut seperti semi-submersible rig. Kondisi lingkungan laut yang begitu ekstrem membuat semisubmersible rig harus handal dan kuat untuk menghadapi semua gangguan yang ada, salah satunya adalah dengan adanya kontrol stabilisasi pada semi-submersible rig agar dapat tetap kuat pada posisi yang telah ditentukan letaknya.Tujuan dari penelitian ini adalah untuk mendesain sistem kontrol stabilisasi pada platform semi-submersible menggunakan metode kontrol optimal Linier Quadratic Gaussian (LQG). Kontrol LQG memiliki sifat yang robust terhadap disturbance pada frekuensi rendah dan tinggi. Berdasarkan Hasil performasi sistem kendali LQG secara keseluruhan, sistem mampu mengendalikan gangguan berupa variasi gelombang frekuensi rendah dan tinggi dan gangguan gelombang sudut 30 pada seastate 6. Berdasarkan hasil simulasi, didapatkan penyimpangan maksimal sebesar 1.161 m untuk arah sway dan yaw sebesar 0.0256 radian hal ini masih diperbolehkan. Sedangkan kondisi dengan gangguan gelombang diperoleh bahwa sistem kontrol dapat mengikuti gangguan dengan sangat baik. ============================================================================================================== Marine technology is growing very rapidly in an effort to explore and exploit the natural resources of the sea, especially oil and gas, so many buildings floating in the ocean for such purposes such as semi-submersible rig. Conditions are so extreme marine environments make the semi-submersible rig to be reliable and robust to deal with all the existing problems, one of which is the presence of stabilization control on a semisubmersible rig in order to remain strong at a predetermined position. The Purpose of this research is to design the control system stabilization in the semi-submersible platform using Linear quadratic optimal control method Gaussian (LQG). LQG control has robust nature of the disturbance at low and high frequencies. Based on the results performance LQG control system as a whole, the system is able to control the disturbances in the form of variations of low and high frequency waves and wave disturbance at an angle of 30 sea state 6. Based on simulation results, obtained a maximum deviation of 1.161 m for sway and yaw is 0.0256 radians it is still allowed. While the condition of the obtained wave disturbances that can follow interference control system very well.

Item Type: Thesis (Undergraduate)
Additional Information: RSF 629.832 Hik p
Uncontrolled Keywords: Gangguan gelombang, LQG, platform semisubmersible, kontrol stabilisasi
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Industrial Technology > Physics Engineering > (S1) Undergraduate Theses
Depositing User: Mr. Fandika aqsa
Date Deposited: 15 Jun 2017 03:16
Last Modified: 15 Jun 2017 03:17
URI: http://repository.its.ac.id/id/eprint/41684

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