Multiple lift DC–DC boost converter using CLC cell

ABSTRACT

A new topology of DC–DC boost converter using the voltage lift technique is introduced in this paper. Based on the conventional boost converter topology, the capacitor–inductor–capacitor (CLC) cells are constructed in the circuit to build multiple ‘lift’ in the structure and finally increase the voltage gain. Between each CLC cell, a diode is used to switch the operation of each cell. In the proposed topology, there are salient features including: (1) single switch in the circuit, (2) low switching voltage, (3) common ground between the source and the load, and (4) higher voltage gain than the traditional boost converter. The circuit with three lifts will be discussed in detail and to expand the utility of this design, N-lift topology using multiple CLC cells is also developed in this paper. Mathematical analysis and software-based simulation results illustrate features of this design. And, hardware-based experimental tests provide the potential value of this topology. Both the voltage gain and the power transferring efficiency are high, and these can demonstrate the value in both industrial and domestic utilities.

KEYWORDS:

• Voltage lift
• CLC cell
• single switch
• high voltage gain
• low voltage stress

Additional information

Notes on contributors

Yiyang Li

Yiyang Li received the B.Eng. degree in Food science and technology (Sugar technology) from South China University of Technology, Guangzhou, China in 2014. He then received the Master of Professional Engineering degree in electrical engineering from the University of Sydney, Sydney, Australia in 2016. Then he has been engaged in Mphil. degree in the University of Sydney in 2017 and upgraded to be a Ph.D. student in 2018. Now he is working toward the Ph.D. degree in electrical engineering in the School of EIE, the University of Sydney, Australia. His research interests include developing DC-DC boost converter topologies and their applications, renewable energy resources, power converters for solar power applications and the control of DC-AC applications.

Swamidoss Sathiakumar

Swamidoss Sathiakumar received the B.E., M.E., and Ph.D. degrees in electrical engineering from the Indian Institute of Science, Bangalore, India.His industrial experience includes graduate apprentice training for a period of one year, followed by employment, from 1978 to 1981, as Assistant Development engineer at the English Electric Company of India Ltd. He then worked as a Project Assistant/Research Associate at the Indian Institute of Science on a project sponsored by the Electronics Commission of India to develop medium- power inverters for different indigenous applications. He then served as a Lecturer at the University of Newcastle, Australia till 1991. During his limited tenure in the University, he worked on adaptive control of rotating machines and published a number of papers in international journals and conferences. Currently, he is a Senior Lecturer at the University of Sydney, Sydney, Australia. His fields of interest are adaptive control of electric machines, application of microprocessors and power converters for real-time control, harmonic pollutionless PWM switching techniques for power conversion, renewable energy resources, power converters for solar power applications and smart grid technologies.

John Long Soon

John Long Soon received the M.Sc and PhD Degrees in electrical engineering from The University of Sydney, Sydney, NSW, in 2014 and 2019, respectively. In 2010, he joined the Mitsuho Electronics SDN BHD as a R&D electrical engineer where he was responsible for software/hardware development design including LED ballast, motor drive applications, switch mode power supply and transceiver wireless modules. He was a school of EIE faculty member with The University of Sydney in 2019 as a technical officer to support the laboratory course teaching and design the educational learning kits. His current research interest includes fault-tolerant converters, reliability of power electronics analysis and converter topologies. He was a recipient of the Best Paper Award in the category of Emerging Power Electronic Technique at the IEEE PEDS 2015 in Sydney conference.