Power Quality Improvement of Dryer Regeneration Preheater 140-E-621 2300 KW Using PID Control In PT Kilang Pertamina Internasional Refinery Unit IV Cilacap

Musyaffa, Nabil Fikri (2025) Power Quality Improvement of Dryer Regeneration Preheater 140-E-621 2300 KW Using PID Control In PT Kilang Pertamina Internasional Refinery Unit IV Cilacap. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengendalian daya listrik pada sistem pemanas industri menjadi krusial dalam menjaga efisiensi energi dan kestabilan sistem. Penelitian ini mengusulkan perancangan dan simulasi dua metode penyalaan thyristor, yaitu sudut fasa dan burst firing, yang dikendalikan oleh pengendali PID. Model sistem dikembangkan dalam lingkungan MATLAB/Simulink, mencakup rangkaian daya dan kontrol. Sinyal keluaran PID dikonversi menjadi sudut penyalaan atau waktu aktif thyristor, yang disinkronkan dengan sinyal penyeberangan nol. Evaluasi performa dilakukan berdasarkan kesalahan steady-state, deviasi, faktor daya, serta karakteristik respons transien dan tunak. Hasil simulasi menunjukkan bahwa metode burst firing memberikan akurasi lebih tinggi terhadap titik setel dan waktu respon transien yang lebih cepat dibanding metode sudut fasa. Penelitian ini menyimpulkan bahwa metode burst firing lebih unggul untuk aplikasi yang membutuhkan kecepatan respons dan regulasi daya yang efisien, dengan catatan pemilihan metode pengendalian tetap perlu disesuaikan dengan karakteristik beban dan batasan sistem.
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Electrical power control in industrial heating systems is crucial in maintaining energy efficiency and system stability. This research proposes the design and simulation of two thyristor firing methods, namely phase angle and burst firing, controlled by a PID controller. The system model is developed in MATLAB/Simulink environment, including power and control circuits. The PID output signal is converted to thyristor turn-on angle or on-time, which is synchronized with the zero-crossing signal. Performance evaluation is performed based on steady-state error, deviation, power factor, and transient and steady-state response characteristics. Simulation results show that the burst firing method provides higher accuracy to the set point and faster transient response time than the phase angle method. This study concludes that the burst firing method is superior for applications that require speed of response and efficient power regulation, provided that the choice of control method still needs to be adjusted to the load characteristics and system constraints.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Pengering Regeneratif, Kendali PID, Sudut Fasa, Burst Firing, Faktor Daya, Pengaturan Daya, Dryer Regeneration Preheater, PID Control, Phase Angle, Burst Firing, Power Factor, Power Regulation.
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ223 PID controllers
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Nabil Fikri Musyaffa
Date Deposited:	23 Jul 2025 04:03
Last Modified:	23 Jul 2025 07:24
URI:	http://repository.its.ac.id/id/eprint/120756

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