Perancangan Sistem Fault Detection Dengan Ewma Pada Proton Exchange Membrane (PEM) Fuel Cell Open Cathode

Ferdiansyah, Dimas Akbar (2025) Perancangan Sistem Fault Detection Dengan Ewma Pada Proton Exchange Membrane (PEM) Fuel Cell Open Cathode. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk merancang sistem Fault Detection and Identification (FDI) menggunakan metode Exponentially Weighted Moving Average (EWMA) dengan kesalahan yang dianalisis merupakan drying dan degradasi membran. Kondisi kesalahan akibat drying ditandai dengan temperatur yang melebihi batas atas 315,8 K, dan daya mulai menurun secara signifikan setelah temperatur melampaui 323 K. Sedangkan degradasi membran menyebabkan penurunan daya secara bertahap dengan temperatur normal diantara 291,3 K hingga 315,8 K. Simulasi drying dilakukan dengan menurunkan laju aliran pendingin udara, sedangkan degradasi membran disimulasikan dengan menaikkan tegangan ageing. Hasil evaluasi performa sistem FDI menunjukkan bahwa sistem mampu mendeteksi dan membedakan kedua kesalahan dengan akurasi 99%, presisi 97%, sensitivitas 100%, dan False Alarm Rate (FAR) sebesar 1%. Temuan ini membuktikan bahwa pendekatan EWMA dapat digunakan untuk mendeteksi dan mengidentifikasi kesalahan pada sistem PEMFC.
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This study aims to design a Fault Detection and Identification (FDI) system using the Exponentially Weighted Moving Average (EWMA) method, with the analyzed faults being drying and membrane degradation. Errors caused by drying are characterized by temperatures exceeding the upper limit of 315.8 K, and power begins to decrease significantly after temperatures exceed 323 K. Meanwhile, membrane degradation causes a gradual decrease in power at normal temperatures between 291.3 K and 315.8 K. Drying simulation was performed by reducing the air cooling flow rate, while membrane degradation was simulated by increasing the aging voltage. Performance evaluation of FDI System results show that the system can detect and distinguish both errors with 99% accuracy, 97% precision, 100% sensitivity, and a False Alarm Rate (FAR) of 1%. These findings demonstrate that the EWMA approach can be used to detect and identify faults in PEMFC systems.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	PEMFC, FDI, EWMA, drying, degradasi membran; PEMFC, FDI, EWMA, drying, membrane degradation
Subjects:	Q Science > Q Science (General) > Q180.55.M38 Mathematical models Q Science > QC Physics > QC100.5 Measuring instruments (General) Q Science > QC Physics > QC271 Temperature measurements
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30101-(S2) Master Thesis
Depositing User:	Dimas Akbar Ferdiansyah
Date Deposited:	07 Aug 2025 00:55
Last Modified:	07 Aug 2025 00:55
URI:	http://repository.its.ac.id/id/eprint/127792

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