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

access icon free Current source back-to-back converter for wind energy conversion systems

© The Institution of Engineering and Technology
Received 11/03/2016, Accepted 14/06/2016, Revised 13/05/2016, Published 15/06/2016

This study proposes a new back-to-back current source converter (BTB-CSC) suitable for medium-voltage high power wind energy conversion systems (WECSs). It employs a dual three-phase permanent magnet synchronous generator and two current source inverters with a phase-shift transformer at the grid side. The proposed BTB-CSC has the following advantages: reduced power circuit and control complexity; low switching losses (zero switching losses at the inverter side); and independent control of active and reactive powers. Power system computer aided design (PSCAD)/electromagnetic transients including DC (EMTDC) simulations are used as to assess the steady state and dynamic behaviour of the proposed system under different operating conditions. It is shown that the proposed WECS can ride-through ac faults. Experimental results from scaled prototype of the proposed WECS are used to validate the simulations.

Inspec keywords: direct energy conversion; permanent magnet generators; power transformers; wind power; invertors; reactive power control; synchronous generators; power grids

Other keywords: current source inverters; WECS; control complexity; ac faults; medium-voltage high power wind energy conversion systems; PSCAD-EMTDC simulations; low switching losses; inverter side; reduced power circuit; grid side; dual three-phase permanent magnet synchronous generator; phase-shift transformer; BTB-CSC; reactive powers; zero switching losses; back-to-back current source converter; independent control

Subjects: Wind energy; Power and energy control; Power system control; Wind power plants; Synchronous machines; Power electronics, supply and supervisory circuits; DC-AC power convertors (invertors); Transformers and reactors; Control of electric power systems

References

    1. 1)
      • 5. Espi, J.M., Castello, J.: ‘Wind turbine generation system with optimized DC-link design and control’, IEEE Trans. Ind. Electron., 2013, 60, pp. 919–929.
    2. 2)
      • 7. Suvire, G.O., Mercado, P.E.: ‘Combined control of a distribution static synchronous compensator/flywheel energy storage system for wind energy applications’, IET Gener. Transm. Distrib., 2012, 6, pp. 483–492.
    3. 3)
      • 13. Levi, E.: ‘Multiphase electric machines for variable-speed applications’, IEEE Trans. Ind. Electron., 2008, 55, pp. 1893–1909.
    4. 4)
      • 26. Holmes, D.G., Lipo, T.A.: ‘Pulse width modulation for power converters: principles and practice’ (John Wiley & Sons, USA, 2003).
    5. 5)
      • 15. Nahome, A.A., Zaimeddine, R., Bing, L., et al: ‘Vector control of direct drive six phase permanent magnet synchronous generators’. 2011 IEEE Trondheim PowerTech, 2011, pp. 1–7.
    6. 6)
      • 1. Gyawali, N., Ohsawa, Y., Yamamoto, O.: ‘Power management of double-fed induction generator-based wind power system with integrated smart energy storage having superconducting magnetic energy storage/fuel-cell/electrolyser’, IET Renew. Power Gener., 2011, 5, pp. 407–421.
    7. 7)
      • 9. Singh, M., Khadkikar, V., Chandra, A.: ‘Grid synchronisation with harmonics and reactive power compensation capability of a permanent magnet synchronous generator-based variable speed wind energy conversion system’, IET Power Electron., 2011, 4, pp. 122–130.
    8. 8)
      • 24. O'Kelley, D., Simmons, S.: ‘Introduction to generalized electrical machine theory’ (McGraw-Hill, USA, 1968).
    9. 9)
      • 25. Abdelsalam, I., Adam, G.P., Holliday, D., et al: ‘Three-phase ac–dc buck–boost converter with a reduced number of switches’, IET Renew. Power Gener., 2015, 9, pp. 494–502.
    10. 10)
      • 3. Lepa, E., Thurnherr, T., Faulstich, A.: ‘Design and testing of a 7 MW wind turbine medium voltage electrical drivetrain with medium speed permanent magnet synchronous generator’. EWEA 2013 Europe's Premier Wind Energy Event, 2013, pp. 1–8.
    11. 11)
      • 11. Jun, L., Bhattacharya, S., Huang, A.Q.: ‘A new nine-level active NPC (ANPC) converter for grid connection of large wind turbines for distributed generation’, IEEE Trans. Power Electron., 2011, 26, pp. 961–972.
    12. 12)
      • 22. Abdelsalam, I., Adam, G.P., Holliday, D., et al: ‘Modified back-to-back current source converter and its application to wind energy conversion systems’, IET Power Electron., 2014, 8, pp. 103–111.
    13. 13)
      • 4. Alizadeh, O., Yazdani, A.: ‘A strategy for real power control in a direct-drive PMSG-based wind energy conversion system’, IEEE Trans. Power Deliv., 2013, 28, pp. 1297–1305.
    14. 14)
      • 23. Abdelsalam, I., Adam, G.P., Holliday, D., et al: ‘Single-stage ac–dc buck–boost converter for medium-voltage high-power applications’, IET Renew. Power Gener., 2016, 10, pp. 184–193.
    15. 15)
      • 18. Duran, M.J., Kouro, S., Bin, W., et al: ‘Six-phase PMSG wind energy conversion system based on medium-voltage multilevel converter’. Proc. 2011-14th European Conf. on Power Electronics and Applications (EPE 2011), 2011, pp. 1–10.
    16. 16)
      • 20. Abdelsalam, I., Adam, G.P., Holliday, D., et al: ‘Assessment of a wind energy conversion system based on a six-phase permanent magnet synchronous generator with a twelve-pulse PWM current source converter’. IEEE ECCE Asia Downunder (ECCE Asia), 2013, pp. 849–854.
    17. 17)
      • 6. Uehara, A., Pratap, A., Goya, T., et al: ‘A coordinated control method to smooth wind power fluctuations of a PMSG-based WECS’, IEEE Trans. Energy Convers., 2011, 26, pp. 550–558.
    18. 18)
      • 12. Strachan, N.P.W., Jovcic, D.: ‘Stability of a variable-speed permanent magnet wind generator with weak AC grids’, IEEE Trans. Power Deliv., 2010, 25, pp. 2779–2788.
    19. 19)
      • 10. Shao, Z., King-Jet, T., Vilathgamuwa, D.M., et al: ‘Design of a robust grid interface system for PMSG-based wind turbine generators’, IEEE Trans. Ind. Electron., 2011, 58, pp. 316–328.
    20. 20)
      • 17. Weihao, H., Yue, W., Xianwen, S., et al: ‘A novel sensorless unity power factor control method for six-phase PMSG in direct drive wind energy conversion systems’. 24th Annual IEEE Applied Power Electronics Conf. and Exposition, 2009. APEC 2009, 2009, pp. 744–749.
    21. 21)
      • 16. Kato, S., Inui, Y., Michihira, M., et al: ‘Low-cost wind generator system with a permanent magnet synchronous generator and diode rectifiers’. ICREPQ'06 Int. Conf. on Renewable Energy and Power Quality, 2006.
    22. 22)
      • 14. Parsa, L.: ‘On advantages of multi-phase machines’. 31st Annual Conf. of IEEE Industrial Electronics Society, 2005. IECON 2005, 2005, p. 6.
    23. 23)
      • 19. Jiawen, L., Heng, N., Yipeng, S.: ‘Dual stator windings PMSG fed by half-controlled converters for wind power application’. 2011 Int. Conf. on Electrical Machines and Systems (ICEMS), 2011, pp. 1–6.
    24. 24)
      • 8. Yuanye, X., Ahmed, K.H., Williams, B.W.: ‘Wind turbine power coefficient analysis of a new maximum power point tracking technique’, IEEE Trans. Ind. Electron., 2013, 60, pp. 1122–1132.
    25. 25)
      • 21. Abdelsalam, I., Adam, G.P., Holliday, D., et al: ‘New back-to-back current source converter with soft start-up and shutdown capabilities’. Seventh IET Int. Conf. on Power Electronics, Machines and Drives (PEMD 2014), 2014, pp. 1–5.
    26. 26)
      • 2. Li, H., Chen, Z.: ‘Overview of different wind generator systems and their comparisons’, IET Renew. Power Gener., 2008, 2, pp. 123–138.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-rpg.2016.0177
Loading

Related content

content/journals/10.1049/iet-rpg.2016.0177
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Print this page
This is a required field
Please enter a valid email address