Quadratic boost converter based on stackable switching stages

Valdez-Reséndiz, Jesús E.; Rosas-Caro, Julio C.; Mayo-Maldonado, Jonathan C.; Llamas, Armando

doi:10.1049/iet-pel.2017.0278

Cited by 42 publications

(65 citation statements)

References 31 publications

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“…The PV panel's I-V and P-V characteristics at different temperature conditions are shown in Figure 5a,b. From Figure 5a,b, it is observed that at static irradiation condition (1000 W/m 2 ), the MPP of the PV panel varies for each operating temperature (25,35,45, and 55 °C ) condition. The single-and double-diode circuit models' PV panel dynamic characteristics under different irradiation conditions (1000, 800, 600, and 400 W/m 2 ) are shown in Figure 4a,b.…”

Section: Mathematical Modeling Of Pv Panelmentioning

confidence: 99%

“…From the literature survey [18][19][20][21][22][23][24][25][26][27], it is evident that there are different types of DC/DC converters used in standalone and grid-connected PV systems to control the load voltage. However, in this article, two high step-up DC-DC converters are discussed which are a SCBC and a SSBC at static and dynamic irradiation conditions and their performance results are compared with CBC.…”

Section: Analysis and Comparison Of Dc-dc Convertersmentioning

confidence: 99%

“…The topology of a SSBC is shown in Figure 13. It consists of the single switch (Q), two capacitors (C a , C b ), three inductors (L a , L b , and L 0 ), and four diodes (d a , d b , d x , and d y ) [25]. When the switch (Q) is ON, the inductor current, i La , flows through the diode, d x , and the capacitor C a gets charged.…”

Section: Stackable Switching Boost Convertermentioning

confidence: 99%

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Different Conventional and Soft Computing MPPT Techniques for Solar PV Systems with High Step-Up Boost Converters: A Comprehensive Analysis

2020

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Solar photovoltaic (PV) systems are attracting a huge focus in the current energy scenario. Various maximum power point tracking (MPPT) methods are used in solar PV systems in order to achieve maximum power. In this article, a clear analysis of conventional MPPT techniques such as variable step size perturb and observe (VSS-P&O), modified incremental conductance (MIC), fractional open circuit voltage (FOCV) has been carried out. In addition, the soft computing MPPT techniques such as fixed step size radial basis functional algorithm (FSS-RBFA), variable step size radial basis functional algorithm (VSS-RBFA), adaptive fuzzy logic controller (AFLC), particle swarm optimization (PSO), and cuckoo search (CS) MPPT techniques are presented along with their comparative analysis. The comparative analysis is done under static and dynamic irradiation conditions by considering algorithm complexity, tracking speed, oscillations at MPP, and sensing parameters. The single-diode model PV panel and double-diode model PV panel are also compared in terms of fill factor (FF) and maximum power extraction. Clear insight is presented supporting the suitability of MPPT techniques for different types of converter configurations.

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Section: Mathematical Modeling Of Pv Panelmentioning

confidence: 99%

Section: Analysis and Comparison Of Dc-dc Convertersmentioning

confidence: 99%

Section: Stackable Switching Boost Convertermentioning

confidence: 99%

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Different Conventional and Soft Computing MPPT Techniques for Solar PV Systems with High Step-Up Boost Converters: A Comprehensive Analysis

2020

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“…Recently, various SSNINCITs have been presented in the literature. [15][16][17][18][19][20][21][22][23][24][25][26][27] Previous studies 15,18 are step-up converters with decreased BV on semiconductors that suffer from pulsating input (and output) current and large switch CS. The 16 is a conventional boost converter-based topology, in which the inductor has been replaced by an inductor-capacitor-diode cell, leading to quadratic voltage gain.…”

Section: Introductionmentioning

confidence: 99%

“…16 The converters presented in previous studies 17,20 are modular (extendable), with continuous input-current, low BV on switching devices and common-ground point between input and load. A previous study 17 has low switch CS, where another study 20 suffers from large switch CS, especially at extended versions. The topologies reported in previous studies 19,21 benefit from continuous input-current and low BV on semiconductors.…”

Section: Introductionmentioning

confidence: 99%

A generalized common‐ground single‐switch continuous input‐current boost converter favourable for DC microgrids

Varesi

Ghorbani

2020

Circuit Theory & Apps

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The conventional DC-DC converters have limited voltage gain at moderate duty cycles. In theory, the large duty cycles should be adopted to reach large boosting factors. But in reality, at extreme duty cycles, the effect of parasitic components become dominant, which leads to increased voltage drops on devices, increased total loss and reduced efficiency. This paper proposes a single-switch (requiring single gate-driver circuit) diode-inductor-capacitor (DLC) cell-based basic boost configuration that can solve the abovementioned issues. The employment of single-switch has led to only two operational modes (in continuous conduction mode [CCM]) and easy control strategy. The continuous input-current and large step-up capability make the proposed configuration favourable for renewable or hybrid energy systems in DC microgrids. The simple configuration, modularity, moderate blocking voltage on semiconductors, wide duty-cycle range, large voltage gains at low duty cycles, common-ground between source and load are some profits of suggested configuration. The basic topology can be expanded by addition of DLC cells. Based on comparative analysis, the proposed configuration has larger step-up capability per required components and lesser average normalized blocking voltage on semiconductors compared with other single-switch topologies. This leads to smaller and cheaper structure with fewer losses. The configuration and operational modes of proposed basic topology (and its extended version) have been explained. Then, the design considerations and small-signal modelling of basic topology have been investigated. Finally, the effectiveness and correct operation of proposed topology have been certified by comparative analysis and experimental results.

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Ultra‐high gain DC‐DC converter based on interleaved quadratic boost converter with ripple‐free input current

Samuel

Keerthi

Prabhakar

2020

Int Trans Electr Energ Syst

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Background In this paper, an ultra‐high gain DC‐DC converter (UHGC) which provides a very high voltage conversion ratio value of 21.11 is described. Methods The proposed UHGC is synthesized from a two‐phase interleaved quadratic boost converter (IQBC). The voltage gain of the IQBC is further extended by using the voltage‐lift technique. To meet the standard DC voltage level of 380 V across the load terminals, the output of the voltage‐lifted IQBC is cascaded to a conventional boost converter (CBC). By operating the switches located in the IQBC stage with a duty ratio of 0.5 and 180° phase‐shift, the source current ripples are nullified. Besides drawing a smooth and ripple‐free current from the input, the converter's voltage gain is adjusted by varying the duty ratio of the switch employed in the CBC stage. Results The proposed gain extension concept is practically validated by conducting experiments on 18‐380 V, 150 W prototype converter. Under practical conditions, the proposed converter operates at full‐load efficiency of 94.7%. Moreover, due to the proposed gain enhancing technique, the two switches employed in the IQBC stage are subjected to low voltage stress levels which are 18.95% of the output voltage. By employing a simple closed‐loop control technique, the output voltage is regulated to remain constant at 380 V despite variations in line voltage and load current magnitudes. Conclusion The proposed UHGC possesses some advantageous features like (i) high voltage gain capability, (ii) ability to draw smooth and continuous (ripple‐free) current from the input, (iii) flexible structure which provides the required high voltage gain while drawing smooth current from the source and (iv) ability to quickly regulate the output voltage using simple closed‐loop control. Thus, the proposed UHGC is an appropriate choice for integrating the input PV source to a common DC bus or microgrid.

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Quadratic boost converter based on stackable switching stages

Cited by 42 publications

References 31 publications

Different Conventional and Soft Computing MPPT Techniques for Solar PV Systems with High Step-Up Boost Converters: A Comprehensive Analysis

Different Conventional and Soft Computing MPPT Techniques for Solar PV Systems with High Step-Up Boost Converters: A Comprehensive Analysis

A generalized common‐ground single‐switch continuous input‐current boost converter favourable for DC microgrids

Ultra‐high gain DC‐DC converter based on interleaved quadratic boost converter with ripple‐free input current

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