Rancang Bangun Sistem Kontrol Daya Pada Single Stack Proton Exchange Membrane Fuel Cell (PEMFC) 5 kW

Maulana, Genta (2025) Rancang Bangun Sistem Kontrol Daya Pada Single Stack Proton Exchange Membrane Fuel Cell (PEMFC) 5 kW. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5009221147_Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 April 2027. Download (2MB) | Request a copy

Abstract

Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem kontrol daya yang diadaptasi dari metode kontrol open loop pada Proton Exchange Membrane Fuel Cell (PEMFC) dengan kapasitas 5 kW. Sistem ini dirancang untuk mengatur aliran hidrogen guna menjaga daya keluaran yang stabil dan efisien sesuai kebutuhan beban. Metode penelitian meliputi pengembangan model regresi linear dan polinomial yang menggambarkan hubungan antara arus, daya, dan aliran hidrogen, serta pengujian kinerja sistem kontrol pada berbagai kondisi operasional. Hasil penelitian menunjukkan bahwa sistem kontrol mampu menjaga stabilitas daya dengan tingkat error rata-rata sebesar 1.2% dan nilai stokiometri hidrogen (λH2) mendekati kondisi ideal, terutama pada beban rendah. Sistem kontrol menunjukkan kinerja optimal pada arus beban rendah dengan respons yang cepat dan akurat terhadap perubahan set point daya. Namun, nilai stokiometri cenderung menurun seiring dengan peningkatan arus beban, seperti pada beban 80 A dengan nilai stokiometri sebesar 0.82. Meskipun demikian, nilai teoritis dari stokiometri belum tentu mengindikasikan starvation pada fuel cell ini didasarkan pada data karakteristik Tegangan (V), yang tetap stabil tanpa mengalami penurunan signifikan. Penurunan nilai stokiometri pada arus tinggi ini dipengaruhi oleh peningkatan Temperatur pada stack fuel cell.
=================================================================================================================================
This study aims to design and implement a power control system adapted from the open-loop control method on a 5 kW Proton Exchange Membrane Fuel Cell (PEMFC). The system is designed to regulate hydrogen flow to maintain stable and fficient power output according to load requirements. The research methodology includes the development of linear and polynomial regression models that describe the relationship between current, power, and hydrogen flow, as well as erformance testing of the control system under various operational conditions. The results show that the control system can maintain power stability with an average error rate of 1.2% and a hydrogen stoichiometry value (λH2) close to ideal conditions, particularly under low-load scenarios. The control system demonstrates optimal performance at low current loads, with a fast and accurate response to changes in power set points. However, the stoichiometry value tends to decrease with increasing current load, such as at 80 A, where the stoichiometry value drops to 0.82. Nevertheless, the theoretical stoichiometry values do not necessarily indicate starvation in the fuel cell. This conclusion is supported by voltage (V) characteristic data, which remains stable without significant drops. The decrease in stoichiometry at high current loads is influenced by the increase in temperature in the fuel cell stack.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	PEMFC, Flow, Powers system control
Subjects:	T Technology > T Technology (General) > T57.74 Linear programming T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1007 Electric power systems control
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Genta Maulana
Date Deposited:	31 Jan 2025 06:13
Last Modified:	31 Jan 2025 06:13
URI:	http://repository.its.ac.id/id/eprint/117505

Actions (login required)

View Item