Revista Eletrônica de Potência (Brazilian Journal of Power Electronics)

Palavras Chaves: Boost-flyback, Boost-Quadrático, Conversor cc-cc de Alto Ganho, Indutor Acoplado

Resumo

O condicionamento entre fontes de tensão com baixa amplitude e cargas que exigem elevados níveis de tensão, especialmente para potências acima de 500 W, mostram-se como um desafio a ser resolvido. Nesse contexto, este artigo apresenta um novo conversor de elevado ganho e de elevado rendimento baseado em indutores acoplados e na estrutura boost-quadrática. O conversor proposto utiliza apenas um semicondutor controlado, indutores acoplados e capacitores na saída com baixa capacitância. A topologia permite o aproveitamento da energia oriunda das indutâncias de dispersão e possibilita que a corrente da entrada opere no modo de condução contínua. A validação dos conceitos foi realizada num protótipo de 1 kW com uma tensão de entrada entre 48 V e 96 V
e uma tensão de saída de 800 V. Os resultados experimentais foram coerentes com a teoria, o conversor permitiu elevado ganho de tensão e elevado rendimento para ampla faixa de potência, além do aproveitamento da energia das indutâncias de dispersão.

Title: A HIGH STEP-UP QUADRATIC-BOOST-DOUBLE-FLYBACK DC-DC CONVERTER

Keywords: Boost-flyback, Coupled Inductor, Quadratic-boost, Step-Up DC-DC Converter

Abstract

The conditioning between voltage sources with low amplitude and loads that requires high voltage levels, especially for power above 500 W, is showing as a challenge to be solved. In this context, this paper presents a new high-gain converter based on coupled inductors and boost- quadratic structure.
The proposed converter uses only one switch, coupled inductors and output capacitors with low capacitance. The topology allows the use of energy from the leakage inductors and enables the input current to operate in the continuous mode. The validation of the concepts was carried out on a prototype of 1 kW with an input voltage between 48 V and 96 V and an output voltage of 800 V. The experimental results were consistent with the theory, the converter allowed high voltage gain and high efficiency for wide range of power, in addition to the energy utilization of the leakage inductances.

[1] A. A. A. Freitas, F. L. Tofoli, E. M. S. Júnior, S. Daher,
F. L. M. Antunes, “High-voltage gain DC-DC boost
converter with coupled inductors for photovoltaic
systems”, IET Power Electronics, vol. 8, no. 10, pp.
1885–1892, 2015.

[2] M. Forouzesh, Y. Shen, K. Yari, Y. P. Siwakoti,
F. Blaabjerg, “High-Efficiency High Step-Up DC-DC
Converter With Dual Coupled Inductors for Grid-
Connected Photovoltaic Systems”, IEEE Transactions
on Power Electronics, vol. 33, no. 7, pp. 5967–5982,
July 2018.

[3] W. Martinez, C. Cortes, M. Yamamoto, J. Imaoka,
“Effect of inductor parasitic resistances on the voltage
gain of high step-up DC-DC converters for electric
vehicle applications”, IET Power Electronics, vol. 11,
no. 10, pp. 1628–1639, 2018.

[4] C. Lai, Y. Cheng, M. Hsieh, Y. Lin, “Development of
a Bidirectional DC/DC Converter With Dual-Battery
Energy Storage for Hybrid Electric Vehicle System”,
IEEE Transactions on Vehicular Technology, vol. 67,
no. 2, pp. 1036–1052, Feb 2018.

[5] S. Chen, T. Liang, L. Yang, J. Chen, “A Cascaded
High Step-Up DC-DC Converter With Single Switch
for Microsource Applications”, IEEE Transactions on
Power Electronics, vol. 26, no. 4, pp. 1146–1153, April
2011.

[6] M. Forouzesh, Y. P. Siwakoti, S. A. Gorji, F. Blaabjerg,
B. Lehman, “Step-Up DC-DC Converters: A
Comprehensive Review of Voltage-Boosting
Techniques, Topologies, and Applications”, IEEE
Transactions on Power Electronics, vol. 32, no. 12, pp.
9143–9178, Dec 2017.

[7] S. Luo, W. Qiu, W. Wu, I. Batarseh, “Flyboost power
factor correction cell and a new family of single-stage
AC/DC converters”, IEEE Transactions on Power
Electronics, vol. 20, no. 1, pp. 25–34, Jan 2005.

[8] Y. Jang, M. M. Jovanovic, “Interleaved Boost
Converter With Intrinsic Voltage-Doubler
Characteristic for Universal-Line PFC Front End”,
IEEE Transactions on Power Electronics, vol. 22,
no. 4, pp. 1394–1401, July 2007.

[9] J.Chen, R.Chen, T.Liang, “StudyandImplementation
of a Single-Stage Current-Fed Boost PFC Converter
With ZCS for High Voltage Applications”, IEEE
Transactions on Power Electronics, vol. 23, no. 1, pp.
379–386, Jan 2008.

[10] W. Li, X. He, “Review of Nonisolated High-
Step-Up DC/DC Converters in Photovoltaic Grid-
Connected Applications”, IEEE Transactions on
Industrial Electronics, vol. 58, no. 4, pp. 1239–1250,
April 2011.

[11] M. Kasper, D. Bortis, J. W. Kolar, “Classification and
Comparative Evaluation of PV Panel-Integrated DC-
DC Converter Concepts”, IEEE Transactions onPower
Electronics, vol. 29, no. 5, pp. 2511–2526, May 2014.

[12] S. Haghbin, S. Lundmark, M. Alakula, O. Carlson,
“Grid-Connected Integrated Battery Chargers in
Vehicle Applications: Review and New Solution”,
IEEE Transactions on Industrial Electronics, vol. 60,
no. 2, pp. 459–473, Feb 2013.

[13] N. B. Arias, S. Hashemi, P. B. Andersen, C. Træholt,
R. Romero, “Distribution System Services Provided
by Electric Vehicles: Recent Status, Challenges, and
Future Prospects”, IEEE Transactions on Intelligent
Transportation Systems, pp. 1–20, 2019.

[14] S. L. B. Junior, G. Waltrich, “Conversor CC-CC de alto
ganho com divisão de esforços de corrente no estágio
de entrada”, Eletrônica de Potência – SOBRAEP,
vol. 22, no. 4, pp. 380–300, out/dez 2017.

[15] A. M. S. S. Andrade, E. Mattos, L. Schuch, H. L. Hey,
M. L. da Silva Martins, “Synthesis and Comparative
Analysis of Very High Step-Up DC-DC Converters
Adopting Coupled-Inductor and Voltage Multiplier
Cells”, IEEE Transactions on Power Electronics,
vol. 33, no. 7, pp. 5880–5897, July 2018.

[16] N. M. Mukhtar, D. D. Lu, “A Bidirectional Two-
Switch Flyback Converter with Cross-Coupled LCD
Snubbers for Minimizing Circulating Current”, IEEE
Transactions on Industrial Electronics, pp. 1–1, 2018,
doi:10.1109/TIE.2018.2873097.

[17] K. C. Tseng, T. J. Liang, “Novel high-efficiency
step-up converter”, IEE Proceedings – Electric Power
Applications, vol. 151, no. 2, pp. 182–190, March
2004.

[18] T. J. Liang, K. C. Tseng, “Analysis of integrated boost-
flyback step-up converter”, IEE Proceedings – Electric
Power Applications, vol. 152, no. 2, pp. 217–225,
March 2005.

[19] J. A. Morales-Saldana, R. Loera-Palomo, E. Palacios-
Hernandez, J. L. Gonzalez-Martinez, “Modelling and
control of a DC-DC quadratic boost converter with
R2P2”, IET Power Electronics, vol. 7, no. 1, pp. 11–
22, January 2014.

[20] M. F. Guepfrih, G. Waltrich, T. B. Lazzarin,
“Quadratic Boost-Flyback DC-DC Converter With
Coupled Inductors”, in 2018 13th IEEE International
Conference on Industry Applications (INDUSCON),
pp. 544–550, Nov 2018.

[21] R. W. Erickson, D. Maksimovic, “A multiple-
winding magnetics model having directly measurable
parameters”, in PESC 98 Record. 29th Annual
IEEE Power Electronics Specialists Conference (Cat.
No.98CH36196), vol. 2, pp. 1472–1478 vol.2, May
1998.

[22] S. Chen, T. Liang, L. Yang, J. Chen, “A Cascaded
High Step-Up DC-DC Converter With Single Switch
for Microsource Applications”, IEEE Transactions on
Power Electronics, vol. 26, no. 4, pp. 1146–1153, April
2011.

[23] K. C. Tseng, T. J. Liang, “Novel high-efficiency
step-up converter”, IEE Proceedings – Electric Power
Applications, vol. 151, no. 2, pp. 182–190, March
2004.

[24] D. Xu, Y. Cai, Z. Chen, S. Zhong, “A novel two
winding coupled-inductor step-up voltage gain
boost-flyback converter”, in 2014 International
Power Electronics and Application Conference
and Exposition, pp. 1–5, Nov 2014, doi:
10.1109/PEAC.2014.7037818.

[25] A. E. L. da Costa, R. L. Andersen, “High-gain
Boost-Boost-Flyback converter for renewable energy
sources applications”, in 2015 IEEE 13th Brazilian
Power Electronics Conference and 1st Southern Power
Electronics Conference (COBEP/SPEC), pp. 1–6, Nov
2015, doi:10.1109/COBEP.2015.7420088