Multi-output Flyback Converter Closed loop Control with MPPT tracked PV Module

Singh, Rajat Kumar; Bose, Sourav; Dwivedi, Prakash

doi:10.1109/indicon49873.2020.9342563

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…This helps in saving energy, and operating costs, while improving the overall energy efficiency of the system. A Close loop flyback converter with PV module is discussed in [6] and relation of multi-output secondary winding voltages is reported. Operating condition for continuous conduction mode (CCM) is discussed for DC-DC converter [7].…”

Section: Introductionmentioning

confidence: 99%

Design and development of variable frequency modulation-based isolated DC–DC converter with green mode of operation

Kumar,

Singh

et al. 2024

Electr Eng

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Amongst many applications of DC-DC isolated converters, power supplies, renewable energy sources, and electric vehicles are prominent. These converters are the basic, easy to use, low component count and being used in industry from a few decades. In this study, a unique operation mode of DC-DC isolated converter called "green mode" is proposed to increase the efficiency of converter under light load conditions. Switching losses of the converter can be reduced by using the converter's secondary-side control method, which enables a reduction in the primary-side switches' switching frequency and turn-off duration. The converter also uses a soft switching mechanism to further minimize the switching losses. The efficiency of the converter has significantly improved, due to reduced power losses under light load conditions, which has been demonstrated through experimental data that validates the green-mode operation. These DC-DC converters shall enhance the range of electric vehicle (EV) and shall be a boon to EV technology.

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Section: Introductionmentioning

confidence: 99%

Design and development of variable frequency modulation-based isolated DC–DC converter with green mode of operation

Kumar,

Singh

et al. 2024

Electr Eng

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“…Regarding the application of DC-DC converters based on a single input and multiple outputs, different approaches can be found in the literature [17][18][19][20][21][22]. There are also approaches that use multiple winding transformers [23][24][25], although those with a single input and multiple outputs are the most frequent uses.…”

Section: Introductionmentioning

confidence: 99%

“…The aims could be to supply several cascade-connected H-bridges to generate a multilevel AC output [17,18], to connect the output in series to obtain a high DC voltage [19], or to supply independent loads with different voltage levels (depending on the number of turns of the secondary windings) [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

A Modified Multi-Winding DC–DC Flyback Converter for Photovoltaic Applications

et al. 2021

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DC–DC power converters have generated much interest, as they can be used in a wide range of applications. In micro-inverter applications, flyback topologies are a relevant research topic due to their efficiency and simplicity. On the other hand, solar photovoltaic (PV) systems are one of the fastest growing and most promising renewable energy sources in the world. A power electronic converter (either DC/DC or DC/AC) is needed to interface the PV array with the load/grid. In this paper, a modified interleaved-type step-up DC–DC flyback converter is presented for a PV application. The topology is based on a multi-winding flyback converter with N parallel connected inputs and a single output. Each input is supplied by an independent PV module, and a maximum power point tracking algorithm is implemented in each module to maximize solar energy harvesting. A single flyback transformer is used, and it manages only 1/N of the converter rated power, reducing the size of the magnetic core compared to other similar topologies. The design of the magnetic core is also presented in this work. Moreover, the proposed converter includes active snubber networks to increase the efficiency, consisting of a capacitor connected in series with a power switch, to protect the main switches from damaging dv/dt when returning part of the commutation energy back to the source. In this work, the operating principle of the topology is fully described on a mathematical basis, and an efficiency analysis is also included. The converter is simulated and experimentally validated with a 1 kW prototype considering three PV panels. The experimental results are in agreement with the simulations, verifying the feasibility of the proposal.

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