Design and Implementation of a T-Type Based Topology for Grid-Connected Current-Source Inverters in PV Applications

Authors

  • Douglas Haupt Department of Electrical and Electronics Engineering, Federal University of Santa Catarina, Florianopolis, Brazil
  • Christian Buzzio Grupo de Electrónica Aplicada - Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados, Universidad Nacional de Río Cuarto, Córdoba, Argentina
  • Lenon Schmitz Department of Electrical and Electronics Engineering, Federal University of Santa Catarina, Florianopolis, Brazil
  • Denizar C. Martins Department of Electrical and Electronics Engineering, Federal University of Santa Catarina, Florianopolis, Brazil
  • Roberto F. Coelho Department of Electrical and Electronics Engineering, Federal University of Santa Catarina, Florianopolis, Brazil https://orcid.org/0000-0002-4672-0885

DOI:

https://doi.org/10.18618/REP.2022.4.0032

Keywords:

Current Controlled Inverter, Grid-Connected, LCL filter, multilevel inverter, PV Applications

Abstract

This paper presents a novel non-isolated 5-level inverter for interfacing renewable sources to the power grid. It consists of a modified T-type converter with an HERIC-based AC decoupling strategy. The 5-level output voltage is filtered by a passively damped LCL filter, resulting in a high power density structure. Experimental results on a 250 (W) prototype are presented to validate the operating principle of the proposed topology and show a high efficiency over the entire output power range. Besides, the injected current complies with the IEEE 1547-2018 specifications regarding harmonic content until the 10th harmonic, using a classical PI controller with an additional feedforward term.

Downloads

Download data is not yet available.

Author Biographies

Douglas Haupt, Department of Electrical and Electronics Engineering, Federal University of Santa Catarina, Florianopolis, Brazil

was born in Passo Fundo, RS, Brazil. He received the B.S degree from the University of Passo Fundo in 2016 and the M.S. degree from Federal University of Eletrôn. Potên., Florianópolis, v. 27, n. 4, p. 344-353, out./dez. 2022 353 Santa Catarina (UFSC), Florianopolis, Brazil, in 2019. He has experience in the field of Electrical Engineering, with an emphasis on Power Electronics. His interests include analog and digital control applied to power electronics, modeling of static converters, PWM rectifiers with power factor correction, power electronics applied to active distribution networks, multilevel converters and high power electrical drives, modeling and design of transformers, voltage stepup converters for photovoltaic solar energy, and multilevel inverters for grid connection.

Christian Buzzio , Grupo de Electrónica Aplicada - Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados, Universidad Nacional de Río Cuarto, Córdoba, Argentina

was born in Río Cuarto, Córdoba, Argentina. He received the B.S degree from the University of Río Cuarto in 2019. He has experience in the field of Electrical Engineering, with an emphasis on Power Electronics. His interests include linear and non-linear control systems, converter modeling, design of high-frequency transformers and inductors, voltage step-up converters for photovoltaic solar energy, and single-phase grid-connected inverters.

Lenon Schmitz, Department of Electrical and Electronics Engineering, Federal University of Santa Catarina, Florianopolis, Brazil

was born in Blumenau, SC, Brazil. He received the B.S., M.S. and Ph.D. degrees from Federal University of Santa Catarina (UFSC), Florianópolis, Brazil, in 2013, 2015 and 2020, respectively. He is currently an Adjunct Professor in the Department of Computing, UFSC. His interest research areas include high-efficient power converters, design optimization techniques, renewable energy applications, and grid-connected systems.

Denizar C. Martins , Department of Electrical and Electronics Engineering, Federal University of Santa Catarina, Florianopolis, Brazil

was born in São Paulo, SP, Brazil. He received the B.S and M.S. degrees in electrical engineering from Federal University of Santa Catarina (UFSC), Florianópolis, Brazil, in 1978 and 1981, respectively, and the Ph.D. degree in electrical engineering from Polytechnic National Institute of Toulouse, Toulose, France, in 1986. He is currently a Titular Professor with the Department of Electrical and Electronics Engineering, UFSC. His interest research areas include dc-dc and dc-ac converters, highfrequency soft commutation, power factor correction and gridconnected photovoltaic systems.

Roberto F. Coelho, Department of Electrical and Electronics Engineering, Federal University of Santa Catarina, Florianopolis, Brazil

was born in Florianopolis, SC, Brazil. He received the B.S., M.S. and PhD degrees from Federal University of Santa Catarina (UFSC), Florianopolis, Brazil, in 2006, 2008 and 2013, respectively. He is currently an Adjunct Professor in the Department of Electrical and Electronics Engineering, UFSC. His interests include power converters, control, maximum power point tracker systems, grid-connected systems and distributed generated systems.

References

M. H. Saeed, W. Fangzong, B. A. Kalwar, S. Iqbal, “AReview on Microgrids’ Challenges and Perspectives”,IEEE Access, vol. 9, pp. 166502–166517, Dec. 2021,doi: https://doi.org/10.1109/ACCESS.2021.3135083. DOI: https://doi.org/10.1109/ACCESS.2021.3135083

H. Komurcugil, S. Bayhan, F. Bagheri, O. Kukrer,H. Abu-Rub, “Model-Based Current Control forSingle-Phase Grid-Tied Quasi-Z-Source Inverters With Virtual Time Constant”,IEEE Transactions onIndustrial Electronics, vol. 65, no. 10, pp. 8277–8286,Feb. 2018, doi: https://doi.org/10.1109/TIE.2018.2801778 DOI: https://doi.org/10.1109/TIE.2018.2801778

.[3]M. Rajeev, V. Agarwal, “Single Phase Current SourceInverter With Multiloop Control for TransformerlessGrid–PV Interface”,IEEE Transactions on IndustryApplications, vol. 54, no. 3, pp. 2416–2424, May-Jun.2018, doi: https://doi.org/10.1109/TIA.2017.2788414. DOI: https://doi.org/10.1109/TIA.2017.2788414

M. N. H. Khan, M. Forouzesh, Y. P. Siwakoti, L. Li,T. Kerekes, F. Blaabjerg, “Transformerless InverterTopologies for Single-Phase Photovoltaic Systems: AComparative Review”,IEEE Journal of Emerging andSelected Topics in Power Electronics, vol. 8, no. 1,pp. 805–835, Mar. 2020, doi: https://doi.org/10.1109/JESTPE.2019.2908672. DOI: https://doi.org/10.1109/JESTPE.2019.2908672

S. Xu, J. Zhang, X. Hu, Y. Jiang, “A Novel HybridFive-Level Voltage-Source Converter Based on T-TypeTopology for High-Efficiency Applications”,IEEETransactions on Industry Applications, vol. 53, no. 5,pp. 4730–4743, Sept.-Oct. 2017, doi: https://doi.org/10.1109/TIA.2017.2713762. DOI: https://doi.org/10.1109/TIA.2017.2713762

S. K. Kuncham, K. Annamalai, N. Subrahmanyam, “ATwo-Stage T-Type Hybrid Five-Level TransformerlessInverter for PV Applications”,IEEE Transactions onPower Electronics, vol. 35, no. 9, pp. 9510–9521, Sept.2020, doi: https://doi.org/10.1109/TPEL.2020.2973340. DOI: https://doi.org/10.1109/TPEL.2020.2973340

R. G. d. Almeida Cacau, R. P. Torrico-Bascopé,J. A. F. Neto, G. V. Torrico-Bascopé, “Five-Level T-Type Inverter Based on Multistate Switching Cell”,IEEE Transactions on Industry Applications, vol. 50,no. 6, pp. 3857–3866, Nov.-Dec. 2014, doi: https://doi.org/10.1109/TIA.2014.2311508. DOI: https://doi.org/10.1109/TIA.2014.2311508

S.-J. Park, F.-S. Kang, M. H. Lee, C.-U. Kim, “Anew single-phase five-level PWM inverter employinga deadbeat control scheme”,IEEE Transactions onPower Electronics, vol. 18, no. 3, pp. 831–843, May2003, doi: https://doi.org/10.1109/TPEL.2003.810837. DOI: https://doi.org/10.1109/TPEL.2003.810837

G. Buticchi, E. Lorenzani, G. Franceschini, “A Five-Level Single-Phase Grid-Connected Converter forRenewable Distributed Systems”,IEEE Transactionson Industrial Electronics, vol. 60, no. 3, pp. 906–918,March 2013, doi: https://doi.org/10.1109/TIE.2012.2189538. DOI: https://doi.org/10.1109/TIE.2012.2189538

G. E. Valderrama, G. V. Guzman, E. I. Pool-Mazún,P. R. Martinez-Rodriguez, M. J. Lopez-Sanchez,J. M. S. Zuñiga, “A Single-Phase Asymmetrical T-Type Five-Level Transformerless PV Inverter”,IEEEJournal of Emerging and Selected Topics in PowerElectronics, vol. 6, no. 1, pp. 140–150, March 2018,doi: https://doi.org/10.1109/JESTPE.2017.2726989. DOI: https://doi.org/10.1109/JESTPE.2017.2726989

R. N. Beres, X. Wang, M. Liserre, F. Blaabjerg, C. L.Bak, “A Review of Passive Power Filters for Three-Phase Grid-Connected Voltage-Source Converters”,IEEE Journal of Emerging and Selected Topics inPower Electronics, vol. 4, no. 1, pp. 54–69, March2016, doi: https://doi.org/10.1109/JESTPE.2015.2507203. DOI: https://doi.org/10.1109/JESTPE.2015.2507203

M. A. Awal, L. D. Flora, I. Husain, “ObserverBased Generalized Active Damping for Voltage SourceConverters With LCL Filters”,IEEE Transactions onPower Electronics, vol. 37, no. 1, pp. 125–136, Jan.2022, doi: https://doi.org/10.1109/TPEL.2021.3093504. DOI: https://doi.org/10.1109/TPEL.2021.3093504

W. Wu, Y. He, T. Tang, F. Blaabjerg, “A NewDesign Method for the Passive Damped LCL andLLCL Filter-Based Single-Phase Grid-Tied Inverter”,IEEE Transactions on Industrial Electronics, vol. 60,no. 10, pp. 4339–4350, Oct. 2013, doi: https://doi.org/10.1109/TIE.2012.2217725. DOI: https://doi.org/10.1109/TIE.2012.2217725

P. Channegowda, V. John, “Filter Optimization forGrid Interactive Voltage Source Inverters”,IEEETransactions on Industrial Electronics, vol. 57, no. 12,pp. 4106–4114, Dec. 2010, doi: https://doi.org/10.1109/TIE.2010.2042421. DOI: https://doi.org/10.1109/TIE.2010.2042421

S. Jain, V. Sonti, “A Highly Efficient and ReliableInverter Configuration Based Cascaded MultilevelInverter for PV Systems”,IEEE Transactions onIndustrial Electronics, vol. 64, no. 4, pp. 2865–2875,April 2017, doi: https://doi.org/10.1109/TIE.2016.2633537. DOI: https://doi.org/10.1109/TIE.2016.2633537

C. I. Odeh, A. Lewicki, M. Morawiec, D. Kondratenko,“Three-Level F-Type Inverter”,IEEE Transactions onPower Electronics, vol. 36, no. 10, pp. 11265–11275,Oct. 2021, doi: https://doi.org/10.1109/TPEL.2021.3071359. DOI: https://doi.org/10.1109/TPEL.2021.3071359

B. Karami, X. Yang, M. Samizadeh, W. Chen,M. Kamranian, A. Hassan, M. A. Houran, “ANew 5-level Grid-Connected TransformerlessInverter with Eliminating Leakage Current”,in IEEE 9th International Power Electronicsand Motion Control Conference (IPEMC2020-ECCE Asia), pp. 454–459, 2020, doi: https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9367920. DOI: https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9367920

G. Vázquez, J. M. Sosa, M. A. Juarez, P. R. Martinez-Rodriguez, G. Escobar, “A Modulation Strategy for aSingle-Phase Transformerless Multilevel Inverter withDual Bidirectional Switch”,in AEIT InternationalAnnual Conference, pp. 1–6, 2018, doi: https://doi.org/10.23919/AEIT.2018.8577206. DOI: https://doi.org/10.23919/AEIT.2018.8577206

A. Kuperman, “Proportional-Resonant Current Controllers Design Based on Desired Transient Performance”,IEEE Transactions on PowerElectronics, vol. 30, no. 10, pp. 5341–5345, Oct.2015, doi: https://doi.org/10.1109/TPEL.2015.2408053. DOI: https://doi.org/10.1109/TPEL.2015.2408053

R. N. Beres, X. Wang, F. Blaabjerg, M. Liserre,C. L. Bak, “Optimal Design of High-Order Passive-Damped Filters for Grid-Connected Applications”,IEEE Transactions on Power Electronics, vol. 31,no. 3, pp. 2083–2098, March 2016, doi: https://doi.org/10.1109/TPEL.2015.2441299. DOI: https://doi.org/10.1109/TPEL.2015.2441299

“IEEE Draft Standard Conformance Test Proceduresfor Equipment Interconnecting Distributed EnergyResources with Electric Power Systems andAssociated Interfaces”,IEEE P15471/D95, pp.1–269, April 2019.

W. Bower, C. Whitaker, W. Erdman, M. Behnke,M. Fitzgerald, “Performance Test Protocol forEvaluating Inverters Used in Grid-ConnectedPhotovoltaic Systems”, [Online], 12 2004

Downloads

Published

2022-11-30

How to Cite

[1]
D. Haupt, C. Buzzio, L. Schmitz, D. C. Martins, and R. F. Coelho, “Design and Implementation of a T-Type Based Topology for Grid-Connected Current-Source Inverters in PV Applications”, Eletrônica de Potência, vol. 27, no. 4, pp. 344–353, Nov. 2022.

Issue

Vol. 27 No. 4 (2022)

Section

Original Papers

License

Copyright (c) 2022 Revista Eletrônica de Potência

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Crossref
Scopus
Google Scholar
Europe PMC