Sadegh Heidari Beni, Sayyed Mohammad Mehdi Mirtalaei, Mahdi Shaneh, Tohid Nouri, Amir Baktash
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Soft-Switching Non-Isolated High Step-Up DC-DC Converter With Continuous Input Current for PV Application
In this paper, a high step-up DC-DC boost converter is introduced, which utilises the coupled inductor and switched capacitor techniques to increase voltage gain, adjustable by changing the turn ratio of the coupled inductors. Additionally, the leakage inductance of the coupled inductors reduces the reverse recovery problem of the output diode. The boost inductor in the input stage ensures continuous input current, thereby extending the lifetime of the input battery or improving the performance of renewable power sources. The proposed converter employs an active clamp technique to achieve soft switching for both the main and auxiliary switches over a wide range of output power, ensuring zero-voltage switching during both on and off states. Key features of the proposed converter include continuous input current, soft switching, high voltage gain, and a simple structure. A 200 W laboratory prototype is implemented, and the results are provided.
期刊介绍：
IET Power Electronics aims to attract original research papers, short communications, review articles and power electronics related educational studies. The scope covers applications and technologies in the field of power electronics with special focus on cost-effective, efficient, power dense, environmental friendly and robust solutions, which includes:
Applications:
Electric drives/generators, renewable energy, industrial and consumable applications (including lighting, welding, heating, sub-sea applications, drilling and others), medical and military apparatus, utility applications, transport and space application, energy harvesting, telecommunications, energy storage management systems, home appliances.
Technologies:
Circuits: all type of converter topologies for low and high power applications including but not limited to: inverter, rectifier, dc/dc converter, power supplies, UPS, ac/ac converter, resonant converter, high frequency converter, hybrid converter, multilevel converter, power factor correction circuits and other advanced topologies.
Components and Materials: switching devices and their control, inductors, sensors, transformers, capacitors, resistors, thermal management, filters, fuses and protection elements and other novel low-cost efficient components/materials.
Control: techniques for controlling, analysing, modelling and/or simulation of power electronics circuits and complete power electronics systems.
Design/Manufacturing/Testing: new multi-domain modelling, assembling and packaging technologies, advanced testing techniques.
Environmental Impact: Electromagnetic Interference (EMI) reduction techniques, Electromagnetic Compatibility (EMC), limiting acoustic noise and vibration, recycling techniques, use of non-rare material.
Education: teaching methods, programme and course design, use of technology in power electronics teaching, virtual laboratory and e-learning and fields within the scope of interest.
Special Issues. Current Call for papers:
Harmonic Mitigation Techniques and Grid Robustness in Power Electronic-Based Power Systems - https://digital-library.theiet.org/files/IET_PEL_CFP_HMTGRPEPS.pdf
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