Theoretical study on performance constraints of a DC-DC buck-boost converter

Saharia, Barnam Jyoti; Talukdar, Bani Kanta

doi:10.1109/epetsg.2015.7510119

Cited by 5 publications

(1 citation statement)

References 4 publications

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“…However, in this work, the DC-DC converter is designed based on the CCM. Figure 3 shows the signals of the voltage and current of the inductance (L) [44]. Thus, the operation of the CCM is divided into two distinct intervals.…”

Section: Step-up Convertermentioning

confidence: 99%

Design and Implementation of High Order Sliding Mode Control for PEMFC Power System

et al. 2020

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Fuel cells are considered as one of the most promising methods to produce electrical energy due to its high-efficiency level that reaches up to 50%, as well as high reliability with no polluting effects. However, scientists and researchers are interested more in proton exchange membrane fuel cells (PEMFCs). Thus, it has been considered as an ideal solution to many engineering applications. The main aim of this work is to keep the PEMFC operating at an adequate power point. To this end, conventional first-order sliding mode control (SMC) is used. However, the chattering phenomenon, which is caused by the SMC leads to a low control accuracy and heat loss in the energy circuits. In order to overcome these drawbacks, quasi-continuous high order sliding mode control (QC-HOSM) is proposed so as to improve the power quality and performance. The control stability is proven via the Lyapunov theory. The closed-loop system consists of a PEM fuel cell, a step-up converter, a DSPACE DS1104, SMC and QC-HOSM algorithms and a variable load resistance. In order to demonstrate the effectiveness of the proposed control scheme, experimental results are compared with the conventional SMC. The obtained results show that a chattering reduction of 84% could be achieved using the proposed method.

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Section: Step-up Convertermentioning

confidence: 99%