Analysis of the Usefulness Range of the Averaged Electrothermal Model of a Diode–Transistor Switch to Compute the Characteristics of the Boost Converter

Górecki, Paweł; Górecki, Krzysztof

doi:10.3390/en14010154

Cited by 11 publications

(7 citation statements)

References 35 publications

(71 reference statements)

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“…This approach is justified only when the switching time of these devices is much shorter than the period of the control signal [96]. In the paper [97], the limitations of the averaged model of the PWM switch with the IGBT were analysed. The tests were carried out on the example of a boost converter operating at a wide range of frequencies, the duty cycle of the control signal, and load current.…”

Section: Methods Using Averaged Modelsmentioning

confidence: 99%

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Methods of Fast Analysis of DC–DC Converters—A Review

Górecki

2021

Electronics

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The paper discusses the methods of fast analysis of DC–DC converters dedicated to computer programmes. Literature methods of such an analysis are presented, which enable determination of the characteristics of the considered converters in the steady state and in the transient states. The simplifications adopted at the stage of developing these methods are discussed, and their influence on the accuracy of computations is indicated. Particular attention is paid to the methods of fast analysis of DC–DC converters, taking into account thermal phenomena in semiconductor devices. The sample results of computations of the DC–DC boost type converter obtained with the use of the selected methods are presented. The scope of application of particular computation methods and their duration times are discussed. Computations were performed with the use of SPICE and PLECS.

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Section: Methods Using Averaged Modelsmentioning

confidence: 99%

Section: Methods Using Averaged Modelsmentioning

confidence: 99%

Methods of Fast Analysis of DC–DC Converters—A Review

Górecki

2021

Electronics

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“…Additionally, the parasitic inductance of the circuit components store energy by currents and discharges as voltage spikes during the transient inactivation [7]. The conduction loss of inductors, switches, and diodes, and the frequency loss of the switches, are expressed as (8), respectively:…”

Section: Efficiencymentioning

confidence: 99%

“…The voltage gain of the Cuk converter, in a way, allows it to be used for three different types of operationstep-up, step-down, and pass-through. Additionally, the duty cycle determines which mode of operation is used [8,9]. Basically, a Cuk converter operates by storing the input source energy in inductors and then, releasing it to the output.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of a New Cuk-Based Step-Up DC–DC Converter

et al. 2021

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This study proposes a novel modified Cuk converter. The proposed converter attempts to resolve the limitations of the conventional converters, such as voltage gain limitations of a canonical Cuk converter. Therefore, the mentioned improvement has made the proposed converters more compatible for renewable energy applications. Moreover, the increase of the voltage gain in the proposed converter has not impacted the efficiency or the voltage stress of the switches, which is common in other voltage boosting techniques, such as cascading methods. Furthermore, the advantages of a Cuk converter, such as continuity of the input current, have been maintained. The average voltage/current stresses of the semiconductor devices and various types of power losses have been calculated and compared with the existing topologies. Moreover, the non-ideal voltage gain of the proposed converters was compared with the other high step-up topologies. Eventually, the simulation results with PLECS, along with the experiments on an 120 W prototype, have been presented for validation.

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“…Taking into account the mentioned information, a compact model of the inverter was formulated. In formulating the presented model, the idea of compact average models of power converters described e.g., in [35,55,56] is used. According to this method, instead of waveforms of the actual values of voltages and currents in the considered converter, the averaged values of these currents and voltages are used.…”

Section: Model Of Invertersmentioning

confidence: 99%

SPICE-Aided Modeling of Daily and Seasonal Changes in Properties of the Actual Photovoltaic Installation

2021

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This article proposes a model of an actual photovoltaic installation situated in the Gdynia Maritime University, Poland. This model is formulated in the form of a SPICE network. In the presented model, the influence of selected weather parameters and thermal phenomena on the properties of the components of this installation are taken into account. The structure of the analyzed installation and the form of the formulated model are both presented. By means of this model, values of the power produced by the installation considered in different seasons and different times of the day are computed. The obtained computation results are compared to the measurement results. Good agreement between the results of measurements and computations is obtained. The obtained results of the investigations confirm the considerable influence of weather conditions, as well as daily and seasonal changes in solar irradiation and the ambient temperature, on the electrical energy produced. In the summer months, a decrease in the energy efficiency of the conversion of solar energy into electrical energy in comparison to the winter months is also visible and can even be twofold.

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Analysis of the Usefulness Range of the Averaged Electrothermal Model of a Diode–Transistor Switch to Compute the Characteristics of the Boost Converter

Cited by 11 publications

References 35 publications

Methods of Fast Analysis of DC–DC Converters—A Review

Methods of Fast Analysis of DC–DC Converters—A Review

Design and Implementation of a New Cuk-Based Step-Up DC–DC Converter

SPICE-Aided Modeling of Daily and Seasonal Changes in Properties of the Actual Photovoltaic Installation

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