Perancangan Sistem Fault Tolerant Control Pada Steam Drum Dengan Kesalahan Aktuator

Nyoto, Alexanderander Buyung Teva Susilo (2025) Perancangan Sistem Fault Tolerant Control Pada Steam Drum Dengan Kesalahan Aktuator. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dalam sistem pembangkit listrik tenaga uap, kestabilan dan keamanan operasi sangat bergantung pada pengendalian level air dalam steam drum. Namun, kompleksitas dinamika sistem dan potensi kesalahn pada aktuator menjadikan pengendalian ini sangat menarik untuk dibahas. Penelitian ini mengusulkan Fault Tolerant Control (FTC) berbasis Extended State Observer (ESO) yang mampu mendeteksi dan mengkompensasi kesalahan aktuator. Model dinamis nonlinear dari steam drum diturunkan berdasarkan prinsip keseimbangan massa dan energi, kemudian dilinearisasi untuk membangun sistem ruang keadaan. Dengan dua skenario kesalahan aktuator yaitu penambahan dan pengurangan sinyal kesalahan step dan sinyal kesalahan ramp yang kemudian dianalisis untuk mengevaluasi efektivitas FTC. Hasil simulasi menunjukkan bahwa sistem FTC mampu menjaga performa pengendalian level air untuk mencapai setpoint meskipun terjadi kesalahan. ESO juga berhasilmengestimasi nilai kesalahan dengan akurat, sehingga pendekatan ini layak diterapkan pada sistem pengendalian industri yang memerlukan ketahanan terhadap kesalahan aktuator.
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In steam power generation systems, operational stability and safety are highly dependent on the control ofwater levels in the steam drum. However, the complexity of system dynamics andpotential errors in actuators make this control very interesting todiscuss. This study proposes Extended State Observer (ESO)-based Fault Tolerant Control (FTC)based on an Extended State Observer (ESO) that is capable of detecting andcompensating for actuator errors. The nonlinear dynamic model of the steam drumis derived based on the principles of mass and energy balance, thenlinearized to construct a state space system. With two actuator error scenarios, namely the addition and reduction of step error signals andramp error signals, which are then analyzed to evaluate the effectiveness ofFTC. Simulation results show that the FTC system is able to maintainwater level control performance to achieve the setpoint despite errors. The ESOalso successfully estimates error values accurately, making this approachsuitable for application in industrial control systems that requireresilience against actuator errors

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Steam drum, Fault Tolerant Control, Extended State Observer, kesalahan aktuator, kontrol nonlinier, Steam drum, Fault Tolerant Control, Extended State Observer, actuator fault, nonlinear control
Subjects:	T Technology > T Technology (General) > T58.8 Productivity. Efficiency T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA169.5 Failure analysis T Technology > TA Engineering (General). Civil engineering (General) > TA169.6 Fault location (Engineering)
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30101-(S2) Master Thesis
Depositing User:	Alexander Buyung Teva Susilo Nyoto
Date Deposited:	20 Nov 2025 06:00
Last Modified:	20 Nov 2025 06:00
URI:	http://repository.its.ac.id/id/eprint/128810

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