Analysis and performance comparison of DC-DC power converters used in photovoltaic systems

Dursun, Mahir; Gorgun, Alper

doi:10.1109/iceee2.2017.7935804

Cited by 16 publications

(6 citation statements)

References 11 publications

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“…It gives the output voltage lower than the input voltage and provides a continuous output current (Goud and Gupta, 2020). The Buck converter requires a large capacitor to smoothen the discontinuous input current (Dursun and Gorgun., 2017). This converter also requires a higher gate side driver than the Boost converter.…”

Section: Structure and Components Of Dcngmentioning

confidence: 99%

Review of Control Strategies for DC Nano-Grid

2021

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As an emerging energy management technology, the DC nano-grid coordinates renewable energy sources output through demand-side management which would provide more options and flexibility for the dispatch of smart buildings and communities with high reliability and efficiency. In this context, this article has analyzed the structure and components of the DC nano-grid. The role and components in DC nano-grid are reviewed in this article. Then the crucial control technologies for the DC nano-grid in recent years are investigated from two aspects: local control and coordinated control, which contains control schemes such as voltage/current control technology, power-sharing technology and cooperative control technology. Different control strategies at various levels are compared and their application scenarios, advantages and disadvantages are also analyzed. The current research progress and challenges are summarized at the end of this article.

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Section: Structure and Components Of Dcngmentioning

confidence: 99%

Review of Control Strategies for DC Nano-Grid

2021

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“…It is worth mentioning that k is an internal parameter of the commercial PV panel, which is variable generally in the range of 0.7 to 0.8. More details of these techniques are available in [14,[24][25][26][27]. Figure 7 presents the block diagram developed for the P&O algorithm following Figure 2b.…”

Section: Simulationsmentioning

confidence: 99%

“…To analyze the transient behavior, the following test was performed. The PV system was simulated considering the STC input, and for each MPPT/ Converter combination, the convergence time (t) at which the system reached 95% of the ideal maximum power available in the PV panel was determined as recommended in [26]. Figure 13 shows the behavior of the MPPT techniques with the Buck converter, in which it is observed that the CV method presented the fastest transient response with t = 391.7 ms and that IncCond with t = 547.8 ms presented the slowest response.…”

Section: Transient Tracking Timementioning

confidence: 99%

Comparison of the performance of MPPT methods applied in converters Buck and Buck-Boost for autonomous photovoltaic systems

Seguel

Seleme

Morais

2021

Ingeniare. Rev. chil. ing.

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In photovoltaic (PV) generation systems, the energy produced is limited by the low efficiency of the solar panels, the variability of weather conditions, and the characteristics of the load connected, so the use of maximum power point tracking (MPPT) methods is essential to maximize the power supplied. Implementing an MPPT requires a power converter as the interface between the PV array and the load, so the converter's behavior is also an important factor to be considered in the overall performance of a PV system. Several MPPT techniques have been proposed over the years, but little literature is still available when required to be compared to the combined performance of different MPPT/converter sets. In this context, the present work presents a comparative study of the performance of three MPPT techniques: constant voltage (CV), perturb and observe (P&O), and incremental conductance (IncCond), acting on two different topologies of DC-DC power converters: Buck and Buck-Boost. Each combination is analyzed considering its transient response and steady-state average efficiency. The study was carried out based on simulations in Matlab/Simulink environment. To obtain more realistic conditions, a model for the commercial PV module Kyocera KC85TS was developed. Results obtained from the PV system operating under various radiation and temperature conditions are compared and discussed, which show that the CV/Buck-Boost combination showed the best transient behavior and that the IncCond/Buck combination had the highest steady-state efficiency.

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“…To meet the requisite voltage levels at the output, booster circuits are required. DC converters find extensive utilization in industrial scenarios, encompassing electric vehicle motor control, uninterruptible power supplies, and battery-powered devices [8]. They offer exceptional efficiency, precise acceleration management, and rapid dynamic responsiveness, making them suitable for the implementation of regenerative braking in DC motors to facilitate energy recovery into the power source.…”

Section: Introductionmentioning

confidence: 99%

Design and Implement of Step-Up DC-DC Converter with a Professional Approach using MATLAB/Simulink

2023

IJSER

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Step-up converters find extensive application in various sectors, including powered vehicles, photovoltaic systems, continuous power supplies, and fuel cell systems. This paper describes the process of designing and building a resistive load step-up (boost) converter, which is a widely used industry application for increasing the direct current (DC) input voltage. This study focuses on ascertaining the appropriate values for the inductor and capacitor within the circuit. The design primarily emphasizes continuous mode operation, involving varying voltage inputs of 10V and 20V DC, while employing a switching frequency input of 25 kHz with the IGBT serving as the switching device. The design evaluation of this circuit aims to regulate the input voltage to support a stable output voltage of 30 VDC, with a simulation power conversion efficiency of 96.18 percent for the input voltage,10V, and a simulation power conversion efficiency of 96.08 percent for the input voltage,20V. This examination also incorporates the requirement of a ripple inductor current, which should not exceed 25% of the total inductor current, and an output voltage ripple is less than 1%. The circuit design parameters are determined based on factors such as output voltage, inductor voltage, and inductor current waveform. MATLAB Simulink software will be used to check the circuit design, thus confirming the agreement between simulation results and theoretical predictions. The simulation results provide compelling evidence that the established model proficiently maintains the output voltage under diverse input voltage scenarios. As a result, these parameters are suitable for the construction of a fully operational boost converter circuit. This paper systematically presents all objectives, calculations, experiments, data, and results in a comprehensive manner.

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Analysis and performance comparison of DC-DC power converters used in photovoltaic systems

Cited by 16 publications

References 11 publications

Review of Control Strategies for DC Nano-Grid

Review of Control Strategies for DC Nano-Grid

Comparison of the performance of MPPT methods applied in converters Buck and Buck-Boost for autonomous photovoltaic systems

Design and Implement of Step-Up DC-DC Converter with a Professional Approach using MATLAB/Simulink

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