A double single-ended resonant inverter for low harmonic line frequency applications

IF 1.2 4区工程技术 Q4 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

Analog Integrated Circuits and Signal Processing Pub Date : 2025-05-05 DOI:10.1007/s10470-025-02415-y

Jafar M. Daoud

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Abstract

Some problems with photovoltaic projects for household applications are the cost, efficiency and complexity of the inverter. Various inverter topologies are used but do not provide a boost and true sinusoidal wave voltage without additional complex circuitry. This paper proposes a double-switch resonant inverter with two different capacitor configurations. The performance of this topology is verified both by simulation and experimentally. The output voltage of the proposed resonant inverter has a true sinusoidal waveform at no-load, pure capacitive and pure inductive load conditions. At resistive load, the waveform is noticeably near sinusoidal but the THD is nonzero. Formulae for the resonant frequency and the voltage gain are derived and verified. The circuit was tested under different operating conditions and parameters for achieving zero-voltage switching (ZVS). The results show that there are no stability issues with the proposed circuit and that a closed-loop control is not required. The proposed topology is applicable to a wide range of loads and DC voltage sources at power-line frequencies.

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双单端谐振逆变器低谐波线路频率的应用

家用光伏项目的一些问题是成本、效率和逆变器的复杂性。使用各种逆变器拓扑结构，但如果没有额外的复杂电路，就不能提供升压和真正弦波电压。提出了一种具有两种不同电容配置的双开关谐振逆变器。通过仿真和实验验证了该拓扑的性能。该谐振式逆变器在空载、纯容性负载和纯感性负载条件下的输出电压均为真正弦波形。在电阻负载下，波形明显接近正弦，但THD不为零。推导并验证了谐振频率和电压增益的计算公式。为了实现零电压开关（ZVS），对该电路在不同的工作条件和参数下进行了测试。结果表明，所提出的电路不存在稳定性问题，不需要闭环控制。所提出的拓扑结构适用于各种负载和电源频率下的直流电压源。

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来源期刊

Analog Integrated Circuits and Signal Processing 工程技术-工程：电子与电气

CiteScore

0.30

自引率

7.10%

发文量

141

审稿时长

7.3 months

期刊介绍： Analog Integrated Circuits and Signal Processing is an archival peer reviewed journal dedicated to the design and application of analog, radio frequency (RF), and mixed signal integrated circuits (ICs) as well as signal processing circuits and systems. It features both new research results and tutorial views and reflects the large volume of cutting-edge research activity in the worldwide field today. A partial list of topics includes analog and mixed signal interface circuits and systems; analog and RFIC design; data converters; active-RC, switched-capacitor, and continuous-time integrated filters; mixed analog/digital VLSI systems; wireless radio transceivers; clock and data recovery circuits; and high speed optoelectronic circuits and systems.