Perancangan PID Self Adaptive Dengan Aturan Fuzzy Pada Water Level Control Steam Drum PLTU PT. XYZ

Khuzaini, Alvin Irsyad (2024) Perancangan PID Self Adaptive Dengan Aturan Fuzzy Pada Water Level Control Steam Drum PLTU PT. XYZ. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kebutuhan listrik di Indonesia setiap tahunnya meningkat sekitar 6.9 %. Untuk memenuhi kebutuhan energi listrik tersebut, pembangkit listrik tenaga uap (PLTU) menjadi salah satu pilihan utama sebagai sumber energi listrik di Indonesia. steam drum merupakan equipment penting untuk mengatur suplai steam pada turbin yang berfungsi sebagai pengubah energi mekanis menjadi energi listrik, agar steam drum dapat beroperasi sesuai dengan kebutuhan output dari turbin, diperlukan pengendali yang efektif untuk mengatur aliran air umpan yang masuk ke steam drum sesuai dengan jumlah steam yang keluar. Metode pengendali yang umum digunakan untuk mengontrol water level pada steam drum adalah PID, namun dalam pengoperasiannya terdapat beberapa kendala diantaranya overshoot yang tinggi, osilasi, dan ketika perubahan beban yang mendadak, seperti perubahan permintaan load, dapat mengganggu keseimbangan dan membuat kontrol PID sulit untuk mempertahankan set point, yang menyebabkan berkurangnya efisiensi dari performansi sistem. Pada penelitian kali ini digunakan metode PID self adaptive dengan aturan fuzzy untuk mengatasi beberapa permasalahan yang telah disebutkan. berdasarkan hasil simulasi yang telah dilakukan diperoleh pada pengujian tanpa gangguan nilai settling time pada PID self adaptive dengan aturan fuzzy 130.5245 (s), sedangkan pada PID konvensional adalah 142,9694 (s), dengan sama sama tidak ada overshoot. Pada uji dengan menurunkan set point PID self adaptive dengan aturan fuzzy nilai undershoot 0 % sedangkan pada PID konvensional 2,46%. Pada uji coba dengan menaikkan set point diperoleh max overshoot pada PID konvensional 2.3 %, dan pada PID self adaptive dengan aturan fuzzy hanya 1.2%, berdasarkan hasil tersebut menunjukkan PID self adaptive dengan aturan fuzzy sebagai kontrol water level dapat meningkatkan performasi dari kontrol water level pada steam drum.
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Electricity demand in Indonesia increases by approximately 6.9% each year. To meet this electricity demand, coal-fired power plants (PLTU) are one of the main choices as a source of electrical energy in Indonesia. The steam drum is an essential piece of equipment for regulating the steam supply to the turbine, which functions as a converter of mechanical energy into electrical energy. For the steam drum to operate according to the output needs of the turbine, an effective controller is required to regulate the feed water flow entering the steam drum in accordance with the amount of steam exiting. The commonly used control method for managing the water level in the steam drum is PID; however, its operation faces several challenges, including high overshoot, oscillations, and difficulties in maintaining the set point during sudden load changes, which can disrupt the balance and make the PID control challenging to maintain, leading to decreased system performance efficiency. This study employs a self-adaptive PID method with fuzzy rules to address the aforementioned issues. Based on simulation results, it was found that in tests without disturbances, the settling time value for the self-adaptive PID with fuzzy rules was 130.5245 (s), while for the conventional PID it was 142.9694 (s), both with no overshoot. In the test with a set point decrease, the self-adaptive PID with fuzzy rules had an undershoot value of 0%, while the conventional PID had 2.46%. In the test with a set point increase, the maximum overshoot for the conventional PID was 2.3%, and for the self-adaptive PID with fuzzy rules, it was only 1.2%. These results indicate that the self-adaptive PID with fuzzy rules as a water level controller can improve the performance of water level control in the steam drum.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Steam Drum, PID Self Adaptive, Water Level Control, Logika Fuzzy,Steam Drum, PID Self Adaptive, Water Level Control, Logika Fuzzy
Subjects:	T Technology > T Technology (General) > T57.62 Simulation T Technology > TJ Mechanical engineering and machinery > TJ217 Adaptive control systems T Technology > TJ Mechanical engineering and machinery > TJ263.5 Boilers (general) T Technology > TJ Mechanical engineering and machinery > TJ223 PID controllers
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Alvin Irsyad Khuzaini
Date Deposited:	02 Aug 2024 06:32
Last Modified:	02 Aug 2024 06:32
URI:	http://repository.its.ac.id/id/eprint/111871

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