000			04219nam a2200325 i 4500
999			_c101013 _d101019
003			MY-KuUP
005			20251125110910.0
006			a||||fr|||| 000 0
007			ta
008			240729t2024 my a|||fr|||| 000 0 eng d
020			_aTHE0009902 (Local) _qHardback
040			_aUMPSA _beng _cUMP _erda
090			_aFTKEE .J54 2024 r Thesis
100	1		_aTan Jie Ying, _eauthor.
245	1	0	_aSliding mode controlled interleaved boost converter for a proton exchange membrane (PEM) fuel cell / _cTan Jie Ying
264		1	_aKuantan, Pahang : _bUMPSA, _c2020
264		4	_c© 2020
300			_axiv, 88 pages : _billustrations (some color) ; _c30 cm. + _e1 CD-ROM
336			_2rdacontent _atext
337			_2rdamedia _aunmediated
338			_2rdacarrier _avolume
347			_2rda _atext file _bPDF
500			_aFaculty of Electrical & Electronics Engineering Technology
502			_aThesis (Master of Science) -- Universiti Malaysia Pahang – 2024
504			_aIn response to the escalating challenges posed by climate change, the global energy sector has witnessed a paradigm shift towards sustainable alternatives. Recent research indicates that fuel cell technology has emerged as a preeminent subject of interest among researchers. Fuel cells are a sort of energy resource used to convert chemical elements into electricity. It can guarantee the system constant energy support as long as it has fuel. The promising fuel cell technology known as the proton exchange membrane fuel cell (PEMFC) has found widespread use in a variety of mobile and stationary applications. The high efficiency and compact design of the PEMFC have become the main reasons for it to be widely applied in many applications. Some of the research studies mentioned how the performance of the PEMFC system is affected by various aspects, such as load variation and fuel cell applied parameter variations. Hence, the instability in its operating condition can potentially impact the performance and reduce the lifespan of the fuel cell. This study introduces the use of a maximum power point tracking (MPPT)-based supertwisting sliding mode (STSM) control in a three-phase interleaved boost converter (IBC) for operating a PEMFC. The goals of this study are to (1) create a mathematical model of a PEMFC that includes a DC/DC converter, (2) build an STSM control for maximum power point tracking in the PEMFC system, and (3) assess how well the proposed sliding mode controller performs in light of the PEMFC system’s that comes with uncertainties. In order to achieve a relatively high level of voltage output while minimizing current and voltage ripple, a mathematical model of the PEMFC is built and used in conjunction with a three-phase IBC. To ensure the maximum power point operation for the system, a reference current estimator (RCE) is implemented to provide the reference current value that corresponds to the system’s maximum power and a STSM controller is constructed to guarantee the trajectory to move towards the reference current. At the same time, the performance of the proposed sliding mode controller is evaluated under the variations of fuel cell partial pressure. In a closed-loop setup, the stability of the system is analyzed. The model of the overall PEMFC system including the proposed sliding mode control is built in MATLAB/Simulink environment. Consequently, the simulation results validated the efficiency of the suggested controller based on the MPPT technique, even in the face of the PEMFC system’s uncertainty. In conclusion, the proposed STSM controller can maintain the system’s robustness when fuel cell parameter variations occur in the system. The comparison between STSM and conventional sliding mode control (SMC) shows that STSM exhibits superior performance in reducing chattering, particularly in the presence of fuel cell partial pressure changes, with STSM achieving an 86% reduction in the chattering magnitude of the fuel cell current.
610	2	0	_aFaculty of Electrical & Electronics Engineering Technology _xDissertations
650		0	_aUniversities and colleges _xDissertations
650		0	_aTheses _xDissertations
942			_2lcc _cTHESIS