Analysis of different flyback Converter topologies

Series connected batteries must have their cells balanced whenever charging and discharging to extend battery lifespans, assure safe operation, and increase battery pack useful capacity. It also causes charge imbalance issues, which will result in battery cell damage and battery life loss. Several charge/discharge equalization circuits have been suggested; however, there has presently been no work regarding the comparison and evaluation of the speed and efficiencies in both modes. In this study, cell balancing on dc-to-dc buck-boost converter and interleaved flyback converter topologies operating in discontinuous current mode are analyzed, designed, and implemented. A simulation model of the converter-based topologies of an active cell balancing system is proposed and designed along with a power loss analysis, efficiencies, and control technique. With the purpose of establishing an energy storage application, the system's cells are grouped into 8 series cells for SOC balancing and 2 series cells for voltage balancing circuit design. Power loss analysis is performed to analyze the efficiency of these two converter topologies to identify which system performs better. In SOC balancing in charging mode, the buck-boost and interleaved flyback converters' power efficiencies are 85.596% and 65.1521% respectively and during voltage balancing 93.9078% and 73.1506% respectively.

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“…For this reason, various flyback converter designs are used. 42 The flyback converter's output voltage is provided by, Output Capacitance,…”

Section: Circuit Topology and Operations Principlementioning

confidence: 99%

Comparative Analysis and Evaluation of the Different Active Cell Balancing Topologies in Lithium Ions Batteries

Shylla

Swarnkar

2023

J. Electrochem. Soc.

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“…FlyBack converters (FBCs) can be used in low-power applications due to a number of advantages, including reliability, high output voltage, and isolation from electricity (Taneri et al, 2019). The structural properties of FBC enable them to achieve high gain while minimizing leakage inductance and output current ripple (Kanthimathi and Kamala, 2015). In Sangeetha et al (2015), a boosting multi-output FBC for EV application was suggested.…”

Section: Important Progress In Ev Technologymentioning

confidence: 99%

Energy and battery management systems for electrical vehicles: A comprehensive review & recommendations

Challoob,

Bin Rahmat,

A/L Ramachandaramurthy

et al. 2023

Energy Exploration & Exploitation

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Electric vehicle technology has recently drawn a lot of interest on a global scale due to improved performance in its efficiency and the capability to solve the problems of carbon emission. As such, electric vehicles are the key to achieving sustainable development goals. This review article analyzes deeply the previous technical developments of electric vehicles, focusing on important topics like battery management systems, technologies of power electronics, techniques of charging, and the relevant algorithms and improvements. In addition, several critical problems, and difficulties are presented in order to pinpoint the gaps in the literature. To address the analysis of battery behavior, battery condition monitoring, real-time control design, temperature control, fault diagnostics, and efficiency of battery model are considered. This study highlighted the estimation techniques that predict the internal battery conditions such as internal temperature, state of health, and state of charge, which are difficult to be directly monitored and determined. A lithium-ion battery, a super-capacitor, and related bidirectional DC/DC converters constitutes the infrastructure of a hybrid power system. This review offers useful and practical recommendations for the future development of electric vehicle technology which in turn help electric vehicle engineers to be acquainted with effective techniques of battery storage, battery charging strategies, converters, controllers, and optimization methods to satisfy the requirements of sustainable development goals. Accordingly, this review article will be a platform and future guide for those who are interesting in the field of energy management and its development.

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“…The flyback converter with RCD snubber circuit is shown in Fig.2. Fig 2:-Flyback converter with RCD snubber [5] The flyback converter with the RCD snubber works as follows: During turn off, the transformer leakage current has two ways, the first one can be through the output capacitance of the switch and one more through the snubber circuit clamp capacitor (Csn).…”

Section: B Resistor Capacitor and Diode(rcd) Snubbermentioning

confidence: 99%

“…In Flyback converter with RCD snubber, the rate of rise of voltage across the switch is slower since the net capacitance is larger resulting in lesser voltage across the switch [5].…”

Section: B Resistor Capacitor and Diode(rcd) Snubbermentioning

confidence: 99%

Comparision of Voltage Stress Across the MOSFET Switch of a Flyback Converter with Various Snubbers

Soumya¹,

Nagashree²,

Rv³

2020

IJISRT

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A Flyback converter is a simple switch-mode power supply that can be used to generate a DC output from either an AC or DC input. The converter switch is the most critical part of any converter. The voltage stress across the switch is a major issue as the high voltage spikes occur due to interaction between its output capacitance and the leakage inductance of the transformer. These spikes can be reduced with various snubbers like conventional tertiary winding, Resistor Capacitor and Diode(RCD) snubber, energy regenerative snubber and an active clamp snubber. This paper aims to analyze and compare the voltage stress across the MOSFET switch of Flyback converter with various snubber circuits.

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Analysis of different flyback Converter topologies

Cited by 25 publications

References 10 publications

Comparative Analysis and Evaluation of the Different Active Cell Balancing Topologies in Lithium Ions Batteries

Comparative Analysis and Evaluation of the Different Active Cell Balancing Topologies in Lithium Ions Batteries

Energy and battery management systems for electrical vehicles: A comprehensive review & recommendations

Comparision of Voltage Stress Across the MOSFET Switch of a Flyback Converter with Various Snubbers

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