A Novel High-Gain Soft-Switching DC-DC Converter With Improved P&amp;O MPPT for Photovoltaic Applications

Rao, C.H. Kamesh; Hajjiah, Ali; El-Meligy, Mohammed A.; Sharaf, Mohamed A.; Soliman, Ahmed T.; Mohamed, Mohamed A.

doi:10.1109/access.2021.3072972

Cited by 54 publications

(20 citation statements)

References 34 publications

(41 reference statements)

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“…Introduced MISO Power Converter Geography explores two and four inputs, N-inputs and separate yields to provide a higher yield capability to control a DC micro grid. Chapping Rao et al [17] have introduced high-voltage DC-DC converters with sophisticated transmission capability for PV applications. A minor amount of induction combined with a magnetic center was used to improve the introduced converter voltage conversion rate.…”

Section: Literature Reviewmentioning

confidence: 99%

Adaptive Black Widow Optimization Based MPPT Controller in High-Gain Non-Isolated DC-DC Converter for PV Applications

Shobanadevi¹,

PheminaSelvi²

2023

Preprint

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Now a days, the DC-DC power converters has been considered as main topic in pulse width modulated in different applications such as renewable energy resources. Hence, a novel non-isolated converter is developed to excerpt maximum power from photovoltaic (PV) system. The maximum power is extracting during environmental conditions in an essential requirement to manage the different load conditions in the PV system. To manage the PV maximum power, the Fractional Order Proportional-Integral-Derivative (FOPID) with Black Widow Optimization (BWO) can be developed. The projected converter is achieved different advantages such as high voltage gain and output voltage. This proposed converter is working with two mode of operation. The maximum power is extract by using the proposed converter and controller. The proposed system is developed using the MATLAB/Simulink and analyzed with performance metrics of converter parameters and PV parameters. The proposed method is analyzed with two mode of operation such as constant irradiance and variable irradiance conditions. The proposed technique is contrasted with the conventional techniques as Particle Swarm Optimization (PSO),Flower Pollination Algorithm (FPA) and Gravitational Search Algorithm (GSA) respectively.

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Section: Literature Reviewmentioning

confidence: 99%

Adaptive Black Widow Optimization Based MPPT Controller in High-Gain Non-Isolated DC-DC Converter for PV Applications

Shobanadevi¹,

PheminaSelvi²

2023

Preprint

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“…Active or passive voltage clamp is also used in the coupled inductor‐based converters to recycle the energy of the leakage inductor and clamp the voltage of the switch [1–3, 7, 11]. In order to achieve higher efficiency, the power loss of the auxiliary circuit should be low.…”

Section: Introductionmentioning

confidence: 99%

“…The conduction loss and the switching loss are the main power losses in the power converters. In order to reduce the conduction loss in the high-voltage gain applications, some proposed converters achieve high-voltage gain using different techniques such as switched capacitors and coupled inductor [1][2][3][4][5][6][7][8][9][10][11]. Omitting or reducing the switching loss of the power switches increases the efficiency.…”

Section: Introductionmentioning

confidence: 99%

A soft switched step‐up DC–DC converter using a low‐power auxiliary circuit and continuous input current

Ardi,

Ajami

2024

IET Power Electronics

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In this paper, a new high step‐up DC–DC converter is presented. The presence of an inductor at converter input reduces input current ripple. Furthermore, a coupled inductor with a voltage multiplier cell is also implemented to increase the voltage gain of the converter. The stored energy in leakage inductance of coupled inductor is recycled by a clamp circuit which increases efficiency and clamps voltage on power switch. The power switch is turned on and off under soft switching condition. The soft switching is also applied to auxiliary switch. All diodes are turned off under zero current condition which causes reverse recovery problem to be alleviated. A very low current flows through auxiliary components in a very short time. Therefore, a very low conduction loss is added to the converter by an auxiliary circuit. Soft switching condition is almost independent of specifications of circuit, especially the output power. Steady‐state analysis of the proposed converter is discussed. Finally, to verify the performance and validation of the proposed converter, laboratory results for a prototype with input voltage 30 V, output voltage 240 V, output power 220 W and switching frequency 50 kHz are presented and the results are discussed. The efficiency of the prototype converter at nominal power is 96%.

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“…The most widely used conventional algorithms are the perturb and observe (P&O), and incremental conductance (INC) [3]. In addition, there are some other algorithms derived from the P&O and INC for USC, where the power p(k) is compared with previous power p(k -1) to later decide to increase or decrease the voltage-step to reach the MPP by employing an AC-DC [9] or DC-DC [10] converter. All of these algorithms do not guarantee to find the GMPP for systems under PSC [3].…”

Section: Introductionmentioning

confidence: 99%

A Novel Global Maximum Power Point Tracking Method Based on Measurement Cells

Morales¹,

Rohten²,

Garbarino³

et al. 2022

IEEE Access

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Solar power generation has become a solution to mitigate the severe effects on the everyday higher prices of fossil fuels. Additionally, renewable energies operation -as solar-results in a non-polluting way to supply energy, being of special interest into highly contaminated cities and/or countries. The solar energy efficiency injection system is known to be high and mainly due to the power converters effectiveness, which is over of 95% for low and medium voltage. However, this efficiency is reduced when the solar array is partially shaded because traditional maximum power point tracking (MPPT) algorithms are not able to find the maximum power point (MPP) under irregular radiation. This work presents a new algorithm to find the global MPP (GMPP) based upon two MPPTs algorithms used regularly in uniform solar condition (USC), these are the Measuring Cell (MC) and the Perturb and Observe (P&O) methods. The MC ensures to find the surroundings of every local MPP (LMPP) faster and then choose among them the surroundings of the GMPP. Once the surroundings of GMPP are found, the P&O is used to get closer to the GMPP but reducing the DC voltage oscillation to zero hence overcoming the main issue of the P&O. Thus, the proposed algorithm finds the GMPP in two main steps and eliminates the oscillations around the GMPP in steady state, despite the utilization of the P&O. The algorithm is detailed mathematically, illustrated by means of a block diagram, and validated in simulated and experimental results.

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A Novel High-Gain Soft-Switching DC-DC Converter With Improved P&O MPPT for Photovoltaic Applications

Cited by 54 publications

References 34 publications

Adaptive Black Widow Optimization Based MPPT Controller in High-Gain Non-Isolated DC-DC Converter for PV Applications

Adaptive Black Widow Optimization Based MPPT Controller in High-Gain Non-Isolated DC-DC Converter for PV Applications

A soft switched step‐up DC–DC converter using a low‐power auxiliary circuit and continuous input current

A Novel Global Maximum Power Point Tracking Method Based on Measurement Cells

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