A Non-Isolated DC-DC Converter with Dual Working Modes and Positive Output Voltage

Okati, Mustafa; Eslami, Mahdiyeh; Shahbazzadeh, Mehdi Jafari

doi:10.1080/15325008.2022.2049662

Cited by 5 publications

(11 citation statements)

References 27 publications

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“…Recent progress in the engineering and optimization of DC converters has led to the introduction of critical innovations. These include versatile operational modes, DC interfaces, elevated gain ratios for voltage, the ability to convert power in both directions and improved operational efficiency [1], [2], [3], [4]. Such advancements hold significant promise for transforming the landscape of energy conversion techniques, offering valuable benefits for multiple industries such as renewable energy sources, systems for storing energy, and the field of power electronics [1], [2], [3], [4].…”

Section: A Motivation and Incitementmentioning

confidence: 99%

“…These include versatile operational modes, DC interfaces, elevated gain ratios for voltage, the ability to convert power in both directions and improved operational efficiency [1], [2], [3], [4]. Such advancements hold significant promise for transforming the landscape of energy conversion techniques, offering valuable benefits for multiple industries such as renewable energy sources, systems for storing energy, and the field of power electronics [1], [2], [3], [4]. The domain of power conversion has witnessed the evolution of various strategies and configurations for converting direct current (DC) to direct current (DC), aiming to enhance efficiency and versatility for a broad range of uses.…”

Section: A Motivation and Incitementmentioning

confidence: 99%

“…This innovation is especially relevant in the context of renewable energy systems and energy storage solutions. Moreover, the unveiling of a non-isolated DC-DC converter that operates in two distinct modes and delivers a positive voltage output marks a significant improvement in the adaptability and performance of power conversion for targeted uses [3], [4]. Conventional methodologies for the design and production of converters usually require comprehensive empirical testing, precise measurements, and detailed experimental validation of every element within a quadratic converter [5].…”

Section: A Motivation and Incitementmentioning

confidence: 99%

“…(3) 𝐼 𝐿2 = 𝐼 𝐶2 + 𝐼 𝑅 (4) Transforming the earlier equations into state variables, equation ( 1) is formulated as:…”

Section: A Representation Of the Equations In State Onmentioning

confidence: 99%

See 3 more Smart Citations

Validation of Passivity-Based Control and Array PID in High-Power Quadratic Buck Converter Through Rapid Prototyping

Acosta-Rodríguez,

Martinez-Sarmiento,

Múñoz-Hernandez

et al. 2024

IEEE Access

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This manuscript describes a swift control prototyping (SCP) approach implemented within an industrial setting, utilizing a DC-DC nonlinear quadratic buck converter (QBC) to decrease production expenses of electronic materials and devices while improving power system efficiency. A practical experimental setup is utilized to develop a working prototype, transforming 380 VDC to 48 VDC with a power capacity of up to 500 W. The setup incorporates dSPACE CP1103 to execute Model in the Loop (MIL), Software in the Loop (SIL), and Hardware in the Loop (HIL) methodologies. Additionally, it employs advanced control strategies such as passivity-based control (PCB) and canonical forms, which are compared with classical Proportional-Integral-Derivative (PID) control arrangements to propose a comprehensive control scheme that ensures stability in the presence of real-time disturbances (RT). Finally, a performance analysis is conducted, assessing important indicators like reaction time, precision of signals, stability of the system, and efficiency in resource utilization. The document concludes by offering a performance evaluation that encompasses PI, Cp, CpK, Z-score, and ITAE. This assessment considers factors such as response time, signal accuracy, system stability, and the efficiency of resource utilization. INDEX TERMSCanonic forms, dSPACE, hardware in the loop (HIL), Model in the loop (MIL), Passivitybased Control (PBC), performance indices, Proportional-Integral-Derivative (PID) array, Quadratic Buck Converter (QBC), Rapid control prototyping (RCP), real-time (RT), software in the loop (SIL).

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Section: A Motivation and Incitementmentioning

confidence: 99%

Section: A Motivation and Incitementmentioning

confidence: 99%

Section: A Motivation and Incitementmentioning

confidence: 99%

“…(3) 𝐼 𝐿2 = 𝐼 𝐶2 + 𝐼 𝑅 (4) Transforming the earlier equations into state variables, equation ( 1) is formulated as:…”

Section: A Representation Of the Equations In State Onmentioning

confidence: 99%

See 2 more Smart Citations

Validation of Passivity-Based Control and Array PID in High-Power Quadratic Buck Converter Through Rapid Prototyping

Acosta-Rodríguez,

Martinez-Sarmiento,

Múñoz-Hernandez

et al. 2024

IEEE Access

View full text Add to dashboard Cite

show abstract

“…With its simple structure, this single‐phase inverter is capable of providing a variety of voltage gain ratios to overcome the shortcomings of modern dual‐mode inverters. A positive output DC/DC converter with low total switching device power in dual working modes is introduced [33]. One working mode is a step‐up mode and other is a step‐up/down mode.…”

Section: Introductionmentioning

confidence: 99%

A new transformerless DC/DC converter with dual operating modes and continuous input current port

Okati

Eslami

Shahbazzadeh

2023

IET Generation Trans & Dist

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In this work, a transformerless DC/DC converter is presented with dual operating modes buck-boost procedure. As a simple structure and continuous input current port, the system acts as a common ground between the output and input terminal. One operating mode, quadratic voltage gain ratio is D/(1-D) 2 , and other mode is D/(1-D). In the present study, the continuous conduction mode (CCM), steady-state conditions were assumed to analyze efficiency and small-signal modeling by replacing parasitic resistance effects. The findings revealed that in comparison with other buck-boost converters, the two voltage gain ratios were provided with fewer components and lower total switching device power in dual operating modes. Therefore, proposed converter can attract considerable attention for renewable energy applications, especially photovoltaic systems. Ultimately, the experimental findings of a prototype made in the laboratory are provided along with the received waveforms from the simulation in PLECS for validation purposes.

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A novel semi-quadratic buck-boost structures with continuous input current for PV application

Okati,

Eslami,

Khan

2024

Sci Rep

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This paper recommends new design for non-isolated semi-quadratic buck/boost converter with two similar structure that includes the following features: (a) the continuous input current has made it reasonable for PV solar applications and reduced the value of the capacitors in the input filter reducing the input ripple as well as EMI problems; (b) the topology is simple, and consists of a few numbers of components; (c) the semiconductor-based components have lower current/voltage stresses in comparison with the recently recommended designs; (d) semi-quadratic voltage gain is D (2 − D) / (1 − D)2; (e) 94.6 percent from the theoretical relations and 91.8 percent from the experimental for the output power of 72W, the duty of 54.2 percent, and output voltage of 72 V are the efficiency values in boost mode; (f) 89.3 percent from the theoretical relations and 87.2 percent from the experimental for the output power of 15W, the duty of 25.8 percent, and output voltage of 15 V are the efficiency values in buck mode. One structure is the continuous output current and negative output polarity, and other structure is positive output polarity. The recommended topologies have been studied in both ideal and non-ideal modes. The continuous current mode (CCM) is the suggested mode for the proposed converters. Moreover, the requirements of CCM have been discussed. The various kinds of comparisons have been held for voltage gain, efficiency, and structural details, and the advantages of the suggested design have been presented. A small-signal analysis has been completed, and the suitable compensator has been planned. Finally, PLECS simulation results have been associated with the design considerations.

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A Non-Isolated DC-DC Converter with Dual Working Modes and Positive Output Voltage

Cited by 5 publications

References 27 publications

Validation of Passivity-Based Control and Array PID in High-Power Quadratic Buck Converter Through Rapid Prototyping

Validation of Passivity-Based Control and Array PID in High-Power Quadratic Buck Converter Through Rapid Prototyping

A new transformerless DC/DC converter with dual operating modes and continuous input current port

A novel semi-quadratic buck-boost structures with continuous input current for PV application

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