A Hybrid Modulation Method for Single-Stage Soft-Switching Inverter Based on Series Resonant Converter

Yeh, Chih-Shen; Chen, Cheng-Wei; Lee, Moonhyun; Lai, Jih‐Sheng

doi:10.1109/tpel.2019.2948122

Cited by 26 publications

(6 citation statements)

References 40 publications

(56 reference statements)

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“…It is built around a series resonance converter connected to a high frequency galvanically isolated inverter. It is designed to produce a power of about 110W [49] and can reach 250W in some cases [50]. Moreover, the transformer leakage inductance and the capacitor connected in series form a resonance circuit that reduces the switching losses of the inverter.…”

Section: Inverter With Series Resonance Convertermentioning

confidence: 99%

Review of DC-AC converters for photovoltaic conversion chains

Bouzguenda

Selmi

2021

IJPEDS

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<span lang="EN-US">This paper is devoted to the state of the art in photovoltaic (PV) conversion chains and their architectures. Two major characteristics are considered to classify these chains. These are the galvanic isolation and the number of stages; characteristics generally localized around the DC-AC converter (inverter) at the end of the PV conversion chain. Therefore, this paper deals with a comprehensive review of the different inverter topologies that can be integrated into PV conversion chains, distinguishing between the transformer based and the transformer-less conversion chains. The paper demonstrates that to this date, transformer-based inverters are very common and widely used, have a long record of accomplishment as a component of solar energy systems, in particular for residential applications because of their greater efficiency, smaller size, and lower costs. Nevertheless, transformer-less chains are touted with some problems and shortcomings. Moreover, solar energy storage devices, wireless charging systems in stations and along the highways require the re-examination of the existing solar PV conversion chains, their architectures and possibly new conversion chains suitable for all distributed generation including electric cars and storage devices.</span>

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Section: Inverter With Series Resonance Convertermentioning

confidence: 99%

Review of DC-AC converters for photovoltaic conversion chains

Bouzguenda

Selmi

2021

IJPEDS

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“…Zhao et al, 2015). Inverters with a hybrid control method can provide pure sinusoidal output without any extra-large filter but their control technique itself is very complicated (C. Yeh et al, 2020). The main reason for adopting hybrid control is that LLC resonant converters require a very high switching frequency to achieve zero tank gain which is practically not possible (M. Xingkui et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

The LLCLC resonant converter based pseudo DC link inverter

Arif

Arshad²,

Aslam³

et al. 2022

JER is an international, peer-reviewed journal that publishes f

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Technological advancements in solar power systems necessitate highly reliable power inverters with high efficiency and small size. An LLC resonant converter-based pseudo-Direct Current (DC) link inverters offer these qualities to some extent. The resonant circuits of conventional pseudo-DC link inverters cannot attain a zero gain and cannot handle variable frequency control which in turn requires very large filters to produce pure sinusoidal output voltages for the grid. The usage of these filters consequences in the enhanced price and size of inverters; moreover, the reliability of inverters is also reduced. We propose a novel topology for a pseudo-DC link inverter based on an LLCLC resonant converter. The proposed inverter does not require large filters, because it generates rectified sinusoidal output voltages. An additional parallel LC component is added in series to the resonant circuit, which makes it able to attain a zero gain through an infinite circuit impedance. The 400 W pseudo-DC link inverter with a 40 V input and a 400 V output is designed and simulated on OrCAD PSpice software. The results showed that there is a significant improvement in achieving a zero gain. The possible lowest gain achieved is approximately 0.125. The proposed technique claimed to be more efficient than those formerly used, subsequently contributing to satisfying outcomes.

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“…There are also hybrid applications of FM, PSM and PDM used for the power control of the load resonant converter [24][25][26]. In these applications, the power control is performed with more than one technique by benefiting from the advantages of each technique for different load conditions.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Control Techniques for Series Resonant Converter

Nacar

Öncü

Bal

2021

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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There are many different derivatives of variable and fixed frequency switching control techniques used in control of load resonant converters. In this study; among these techniques frequency modulation (FM), phase shift modulation (PSM) and pulse density modulation (PDM) are applied separately to series resonant converter (SRC). The techniques are examined and compared in many respects. An experimental setup is built, which consists of a 400W converter, a control circuit and a resistive load to verify theoretical studies. The converter is controlled by FM, PSM and PDM separately for 120 kHz basic operating frequency and different output currents. Experimental results are compared in terms of efficiency, output voltage ripple, soft switching, switch voltage, ease of application and hardware. The comparison results are presented. Thus, effect of each technique on the operating parameters of the converter is revealed. Moreover, it is also observed that FM has better performance than the other two techniques in many aspects.

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A Hybrid Modulation Method for Single-Stage Soft-Switching Inverter Based on Series Resonant Converter

Cited by 26 publications

References 40 publications

Review of DC-AC converters for photovoltaic conversion chains

Review of DC-AC converters for photovoltaic conversion chains

The LLCLC resonant converter based pseudo DC link inverter

Comparison of Control Techniques for Series Resonant Converter

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