Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

access icon openaccess Comparison of boost and LLC converter and active clamp isolated full-bridge boost converter for photovoltaic DC system

DC collection network offers an attractive alternative to AC network for photovoltaic, as it avoids the charging current issues and reduces the size and weight. Variable voltage gain DC/DC converters play an important role in DC collection network. Two topologies suitable for photovoltaic DC collection are studied. Boost and LLC converter and active clamp isolated full-bridge boost converter are two converters with high and variable voltage conversion ratio suitable for the photovoltaic system. This work investigates the two converters comprehensively. The topologies are analysed so as to summarise and compare the characteristic of the converters. Soft switching condition is compared to help extend the zero voltage switching range. Voltage and current stress of the two converters are calculated. Loss comparison is made with the theoretical analysis. Advantages and disadvantages are summarised to get a deep insight into their application field.

References

    1. 1)
      • 5. Xu, H., Yin, Z., Zhao, Y., et al: ‘Accurate design of high efficiency LLC resonant converter with wide output voltage’, IEEE. Access., 2017, PP, (99), pp. 11.
    2. 2)
      • 2. Jain, S., Agarwal, V.: ‘An integrated hybrid power supply for distributed generation applications fed by nonconventional energy sources’, IEEE Trans. Energy Convers., 2008, 23, (2), pp. 622631.
    3. 3)
      • 7. Jung, J.H., Kwon, J.G.: ‘Theoretical analysis and optimal design of LLC resonant converter’. IEEE European Conf. on Power Electronics and Applications, Aalborg, Denmark, 2008, pp. 110.
    4. 4)
      • 4. Lembeye, Y., Bang, V.D., Lefèvre, G., et al: ‘Novel half-bridge inductive DC–DC isolated converters for fuel cell applications’, IEEE Trans. Energy Convers., 2009, 24, (1), pp. 203210.
    5. 5)
      • 8. Wen, P., Hu, C., Yang, H., et al: ‘A two stage DC/dc converter with wide input range for EV’. IEEE Power Electronics Conf., Hiroshima, Japan, 2014, pp. 782789.
    6. 6)
      • 10. Prasanna, U.R., Rathore, A.K.: ‘Extended range ZVS active-clamped current-fed full-bridge isolated DC/DC converter for fuel cell applications: analysis, design, and experimental results’, IEEE Trans. Ind. Electron., 2013, 60, (7), pp. 26612672.
    7. 7)
      • 9. Zhou, G., Ruan, X., Wang, X.: ‘Input voltage feed-forward control strategy for cascaded DC/DC converters with wide input voltage range’. IEEE Power Electronics and Motion Control Conf., Hefei, China, 2016, pp. 603608.
    8. 8)
      • 11. Prasanna, U.R., Rathore, A.K.: ‘Small-signal modeling of active-clamped ZVS current-Fed full-bridge isolated DC/DC converter and control system implementation using PSoC’, IEEE Trans. Ind. Electron., 2014, 61, (3), pp. 12531261.
    9. 9)
      • 1. Musasa, K., Nwulu, N., Gitau, M., et al: ‘A review on DC collection grids for offshore wind farms with HVDC transmission system’, IET Power Electron., 2017, 10, (15), pp. 21042115.
    10. 10)
      • 3. Zhang, J., Wu, H., Xing, Y., et al: ‘A variable frequency soft switching boost-flyback converter for high step-up applications’. IEEE Energy Conversion Congress and Exposition, Phoenix, USA, 2011, pp. 39683973.
    11. 11)
      • 6. Degioanni, F., Zurbriggen, I.G., Ordonez, M.: ‘Dual-loop controller for LLC resonant converters using an average equivalent model’, IEEE Trans. Power Electron., 2018, 33, (11), pp. 98759889.
http://iet.metastore.ingenta.com/content/journals/10.1049/joe.2018.8507
Loading

Related content

content/journals/10.1049/joe.2018.8507
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address