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access icon openaccess Time-sharing control of multi-inverter-module parallel system for frequency multiplication

This is an open access article published by the IET under the Creative Commons Attribution -NonCommercial License (http://creativecommons.org/licenses/by-nc/3.0/)
Received 23/08/2018, Accepted 19/09/2018, Published 26/10/2018

In order to fulfil the requirements in high-frequency and high-power applications, this paper presents a novel frequency multiplication method, in which N single-phase voltage-type inverter circuits are combined in parallel, being time-sharing controlled in rotation, and the output is through a transformer. The output frequency from the secondary side of the transformer will be increased to N times switching frequency. Using lower-frequency power switching devices for frequency multiplication, this scheme has several advantages. It overcome the limitation of dead-zone time of each inverter, possesses soft switching ability thus reducing the loss in switch tubes, and can be implemented at lower cost. This frequency multiplication method is analysed and simulated on a five-inverter-module system under ten different working conditions, with the associated parameters calculated. A five-module 800 kHz/20 kW prototype has been designed and the test results have shown the validity of the proposed method.

Inspec keywords: switching convertors; invertors

Other keywords: switch tubes; time-sharing control; soft switching ability; dead-zone time; lower-frequency power; output frequency; N times switching frequency; high-power applications; frequency multiplication method; N single-phase voltage-type inverter circuits; frequency 800.0 kHz; five-inverter-module system; power 20.0 kW; multiinverter-module parallel system

Subjects: DC-AC power convertors (invertors); Control of electric power systems

References

    1. 1)
      • 19. Shu-Xin, T., Li-Juan, Z., Xi-Jun, X., et al: ‘Implementation of switch mode power supply with in-series secondary windings of high-frequency transformers’, Power Electron., 2011, 45, (3), pp. 100–105.
    2. 2)
      • 14. Jin-Fei, S., Jing, H., Lei, W., et al: ‘Time-sharing controlled frequency multiplication of IGBT based 180 kHz/50 kW high frequency induction soldering power supply’, Trans. China Weld. Inst., 2009, 30, (9), pp. 1–4.
    3. 3)
      • 11. Bao-Dong, B., De-Zhi, C., Xin-Bo, W.: ‘Loss calculation of inverter IGBT and design of cooling device’, Trans. China Electrotech. Soc., 2013, 28, (8), pp. 97–106.
    4. 4)
      • 7. Wen-Juan, L., Jin-Lin, D., Jie, F.: ‘Three-level static var generator by TNPC type with no dead-zone effect’, J. Harbin Univ. Sci. Technol., 2017, 22, (5), pp. 46–51.
    5. 5)
      • 4. Jun, Z., Jia-Lei, W., Jun-Feng, L.: ‘A novel high-frequency multilevel inverter with capacitors self-balancing’, Proc. CSEE, 2016, 36, (19), pp. 5326–5333.
    6. 6)
      • 9. Qing-Wei, Y., Rong-Xiang, Z.: ‘Common-mode voltage suppression algorithm for three-phase PWM inverter in consideration of dead-band’, J. Zhejiang Univ. (Eng. Sci.), 2017, 51, (11), pp. 2276–2286.
    7. 7)
      • 6. Wei-Dong, J., De-Yong, Z., Lei, W., et al: ‘A modulation method with reduced switching losses and considering the neutral point voltage balance suitable for the neutral point clamped three-level inverter’, Proc. CSEE, 2016, 36, (5), pp. 1376–1386.
    8. 8)
      • 2. Sivkov, O., Novak, M.: ‘Implementation of SiC inverter for high frequency, medium voltage applications’. 2015 16th Int. Conf. on IEEE Mechatronics Mechatronika, Brno, Czech Republic, 2015, pp. 477–483.
    9. 9)
      • 15. He, L., Yong-Long, P., Ya-Bin, L.: ‘Study for solid-state high- frequency induction heating power source of time-sharing control MOSFET’, J. North China Electr. Power Univ., 2009, 36, (1), pp. 24–27.
    10. 10)
      • 8. Hai-Hong, H., Nian-Tao, J., Nan-Nan, H., et al: ‘Analysis and compensation of dead-time effect of three-level active power filter’, Electr. Power Autom. Equip., 2017, 37, (11), pp. 99–103.
    11. 11)
      • 10. Miao, L., Feng, H., Pei-Pei, Y., et al: ‘A hybrid cascaded dual buck flying-capacitor five-level inverter’, Trans. China Electrotech. Soc., 2015, 30, (18), pp. 35–42.
    12. 12)
      • 5. Cheng-Rui, D., Nan, Z., Ning, H., et al: ‘Dynamic losses measurement and modeling of the soft-switching inverter’, J. Power Supply, 2017, 15, (4), pp. 1–9.
    13. 13)
      • 12. Jia-Xi, H., Li-Jun, Z., Cong-Quan, H.: ‘Research on topological structure of a new type invertor suitable for high-frequency induction-heating power supply’, Chinese J. Power Sour., 2013, 37, (9), pp. 1644–1648.
    14. 14)
      • 17. Shi-Feng, L., Mo-Ying, L., Hui-Ming, C.: ‘A novel hybrid full-bridge inverter for ultra-high frequency induction heating applications’, Trans. China Electrotech. Soc., 2013, 28, (3), pp. 215–221.
    15. 15)
      • 13. Jin-Fei, S., Hui, Z., Lei, Y.: ‘Soft-switch DC chopper four fold-frequency power control 300 KHz/50 kW induction welding power’, Trans. China Weld. Inst., 2012, 33, (11), pp. 89–92.
    16. 16)
      • 1. Knott, A., Andersen, T.M., Kamby, P., et al: ‘Evolution of very high frequency power supplies’, IEEE J. Emerg. Sel. Topics Power Electron., 2014, 2, (3), pp. 386–394.
    17. 17)
      • 3. Yi-fei, L., Bin-li, L., Bo, W., et al: ‘The influence of IGBT switching mechanism on the dead-time of inverters’, Electr. Mach. Control, 2014, 18, (5), pp. 63–75.
    18. 18)
      • 16. Rong-Quan, D., Le-Zhu, C., Yu, M.: ‘Research on inverter type high frequency pulse power supply’, Power Electron., 2014, 48, (6), pp. 62–64.
    19. 19)
      • 18. Yan, Z., Shou-Zhi, L.: ‘Time-sharing control for the high-frequency welding inverter power supply’, Power Electron., 2013, 47, (4), pp. 21–23.
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