It is an important trend to develop the more electric aircraft (MEA) ±270 V high-voltage direct current (HVDC) power system because of its better reliability, power quality and power density. However, there also exists the low-voltage 28 V DC system in HVDC power system, for the aviation battery and some equipment still rely on it. In traditional MEA power systems, battery is only used as a backup power supply, hardly participating in the adjustment of the power system. On the other hand, the function of turbine engine is unidirectional. Hence, it's necessary to add an energy storage port. In this research, the authors put forward the problems of power coupling and strong non-linearity in traditional three-port triple active bridge (TAB) converters, and propose a decoupled TAB topology, which has the feature of decoupled power flow. The topology is compatible with ±270 V DC, 28 V DC and energy storage system with high-power density and efficiency. In addition, the authors unify the efficiency optimisation problem of dual active bridge topology mathematically and provide an optimal parameter design approach for inductance and turns ratio. Simulation results show the power flow control strategy is appropriate for the topology.

References

1. 1)
  - 1. Moir, I., Seabridge, A.: ‘Aircraft systems: mechanical, electrical and avionics subsystems integration’ vol. 52, (John Wiley & Sons, Hoboken, New Jersey, 2011).
2. 2)
  - 21. Cayley, A.: ‘XXVIII On the theory of the analytical forms called trees’, London Edinburgh Dublin Philos. Mag. J. Sci., 1857, 13, (85), pp. 172–176 (doi: 10.1080/14786445708642275).
3. 3)
  - 22. Krismer, F., Kolar, J.: ‘Accurate power loss model derivation of a highcurrent dual active bridge converter for an automotive application’, IEEE Trans. Ind. Electron., 2010, 57, (3), pp. 881–891 (doi: 10.1109/TIE.2009.2025284).
4. 4)
  - 22. Tao, H., Kotsopoulos, A., Duarte, J.L., et al: ‘A soft-switched three-port bidirectional converter for fuel cell and supercapacitor applications’. Power Electronics Specialists Conf., 2005, pp. 2487–2493.
5. 5)
  - 5. Naayagi, R.T., Forsyth, A.J.: ‘Bidirectional DC-DC converter for aircraft electric energy storage systems’, 5th IET International Conference on Power Electronics, Machines and Drives (PEMD 2010), 2010, p. 223.
6. 6)
  - 11. Tan, N.M.L., Abe, T., Akagi, H.: ‘Design and performance of a bidirectional isolated DC–DC converter for a battery energy storage system’, IEEE Trans. Power Electron., 2012, 27, (3), pp. 1237–1248 (doi: 10.1109/TPEL.2011.2108317).
7. 7)
  - 6. Karanayil, B., Ciobotaru, M., Agelidis, V.G.: ‘Power flow management of isolated multiport converter for more electric aircraft’, IEEE Trans. Power Electron., 2017, 32, (7), pp. 5850–5861 (doi: 10.1109/TPEL.2016.2614019).
8. 8)
  - 13. Zhao, C., Round, S.D., Kolar, J.W.: ‘An isolated three-port bidirectional dc–dc converter with decoupled power flow management’, IEEE Trans. Power Electron., 2008, 23, (5), pp. 2443–2453 (doi: 10.1109/TPEL.2008.2002056).
9. 9)
  - 17. Duarte, J.L., Hendrix, M., Simões, M.G.: ‘Three-port bidirectional converter for hybrid fuel cell systems’, IEEE Trans. Power Electron., 2007, 22, (2), pp. 480–487 (doi: 10.1109/TPEL.2006.889928).
10. 10)
  - 8. Motapon, S.N., Dessaint, L.A., Al-Haddad, K.: ‘A comparative study of energy management schemes for a fuel-cell hybrid emergency power system of more-electric aircraft’, IEEE Trans. Ind. Electron., 2014, 61, (3), pp. 1320–1334 (doi: 10.1109/TIE.2013.2257152).
11. 11)
  - 9. Krismer, F.: ‘Modeling and optimization of bidirectional dual active bridge DC-DC converter topologies’, 2010.
12. 12)
  - 12. De Doncker, R.W.A.A., Divan, D.M., Kheraluwala, M.H.: ‘A three-phase soft-switched high-power-density DC/DC converter for high-power applications’, IEEE Trans. Ind. Appl., 1991, 27, (1), pp. 63–73 (doi: 10.1109/28.67533).
13. 13)
  - 22. Bai, H., Mi, C.: ‘Eliminate reactive power and increase system efficiency of isolated bidirectional dual-active-bridge DC–DC converters using novel dual-phase-shift control’, IEEE Trans. Power Electron., 2008, 23, (6), pp. 2905–2914 (doi: 10.1109/TPEL.2008.2005103).
14. 14)
  - 2. Nya, B.H., Brombach, J., Schulz, D.: ‘Benefits of higher voltage levels in aircraft electrical power systems’. Electrical Systems for Aircraft, Railway and Ship Propulsion (ESARS), 2012, pp. 1–5.
15. 15)
  - 6. Gu, C., Zheng, Z., Xu, L., et al: ‘Modeling and control of a multiport power electronic transformer (PET) for electric traction applications’, IEEE Trans. Power Electron., 2016, 31, pp. 915–927 (doi: 10.1109/TPEL.2015.2416212).
16. 16)
  - 7. Nishizawa, A., Kallo, J., Garrot, O., et al: ‘Fuel cell and Li-ion battery direct hybridization system for aircraft applications’, J. Power Sources, 2013, 222, pp. 294–300 (doi: 10.1016/j.jpowsour.2012.09.011).
17. 17)
  - 1. Ribeiro, P., Johnson, B., Crow, M., Arsoy, A., Liu, Y.: ‘Energy storage systems for advanced power applications’, Proc. IEEE, 2001, 89, (12), pp. 1744–1756 (doi: 10.1109/5.975900).
18. 18)
  - 18. Kim, S.Y., Jeong, I., Nam, K., et al: ‘Three-port full bridge converter application as a combined charger for PHEVs’. Vehicle Power and Propulsion Conf., 2009, pp. 461–465.
19. 19)
  - 16. Zhao, B., Song, Q., Liu, W., et al: ‘A synthetic discrete design methodology of high-frequency isolated bidirectional DC/DC converter for grid-connected battery energy storage system using advanced components’, IEEE Trans. Ind. Electron., 2014, 61, (10), pp. 5402–5410 (doi: 10.1109/TIE.2014.2304915).
20. 20)
  - 10. Inoue, S., Akagi, H.: ‘A bidirectional dc-dc converter for an energy storage system with galvanic isolation’, IEEE Trans. Power Electron., 2007, 22, (6), pp. 2299–2306 (doi: 10.1109/TPEL.2007.909248).
21. 21)
  - 3. Zhang, H., Mollet, F., Saudemont, C., et al: ‘Experimental validation of energy storage system management strategies for a local dc distribution system of more electric aircraft’, IEEE Trans. Ind. Electron., 2010, 57, (12), pp. 3905–3916 (doi: 10.1109/TIE.2010.2046575).
22. 22)
  - 14. Huang, J., Wang, Y., Li, Z., et al: ‘Unified triple-phase-shift control to minimize current stress and achieve full soft-switching of isolated bidirectional DC–DC converter’, IEEE Trans. Ind. Electron., 2016, 63, (7), pp. 4169–4179 (doi: 10.1109/TIE.2016.2543182).

Decoupled TAB converter with energy storage system for HVDC power system of more electric aircraft

References

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