Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter April 24, 2015

Harmonic Mitigation in a Coreless Double-Wound Flywheel Machine: Experimental Verification

  • Janaína Goncalves de Oliveira EMAIL logo , Juan de Santiago and Pedro Machado de Almeida

Abstract

This paper aims at analyzing harmonics and interharmonics present in a flywheel-based driveline developed at Uppsala University. The flywheel machine is a permanent magnet synchronous machine with two sets of windings in the stator, with a Wye–Wye connection as standard. Different sources of harmonic distortion have been evaluated. Flywheel machine simulations are performed in finite element method (FEM) (Comsol) and experimental verifications are presented. Several methods for harmonic mitigation have been evaluated. The driveline suffers almost exclusively from second-order harmonics but the THD (total harmonic distortion) seldom exceeds 5%. Very little interharmonics are present. A Delta–Wye connection of the flywheel eliminates most of the harmonics but at the expense of a high-phase current through the Delta connection. Grounding the neutral conductor in Wye connections increases the distortion.

References

1. LingPJ, EldridgeCJ. Designing modern electrical systems with transformers that inherently reduce harmonic distortion in a PC-rich environment. Toronto, Canada: Proceedings of the Power Quality Conference, 1994:16678.Search in Google Scholar

2. YazhouL, HeydtGT, ChuRF. The power quality impact of cycloconverter control strategies. IEEE Trans Power Deliv2005;20:171118.10.1109/TPWRD.2004.834350Search in Google Scholar

3. Mack GradyW, SantosoS. Understanding power system harmonics. IEEE Power Eng Rev2001;21:c2c2.10.1109/39.961985Search in Google Scholar

4. VarmaRK, SidhuTS. Bibliographic review of FACTS and HVDC applications in wind power systems. Int J Emerg Electr Power Syst7, Article 7, 2006;116.10.2202/1553-779X.1346Search in Google Scholar

5. SharafAM, WangW, AltasIH. A novel modulated power filter compensator for distribution networks with distributed wind energy. Int J Emerg Electr Power Syst8, Article 6, 2007;122.10.2202/1553-779X.1514Search in Google Scholar

6. AbrahamssonJ, de OliveiraJG, de SantiagoJ, LundinJ, BernhoffH. On the efficiency of a two-power-level flywheel-based all-electric driveline. Energies2012;5:2794817.10.3390/en5082794Search in Google Scholar

7. ArthurR. Harmonic canceling transformers in industrial applications: correct voltage distortions to prevent serious damage. Plant Services May 1, 2000;1:12.Search in Google Scholar

8. de OliveiraJG, SchettinoH, GamaV, CarvalhoR, BernhoffH. Study on a doubly-fed flywheel machine-based driveline with an AC/DC/AC converter. IET Electr Syst Transp2012;2:517.10.1049/iet-est.2011.0040Search in Google Scholar

9. de OliveiraJG, SchettinoH, GamaV, CarvalhoR, BernhoffH. Implementation and control of an AC/DC/AC converter for double wound flywheel application. Adv Power Electron2012;2012:18. Article ID 604703.10.1155/2012/604703Search in Google Scholar

10. SantiagoJ, LarssonA, BernhoffH. Dual voltage driveline for vehicle applications. Int J Emerg Electr Power Syst2010;11:16.10.2202/1553-779X.2384Search in Google Scholar

11. ZhuZQ, WuLJ, Mohd JamilML. Distortion of back-EMF and torque of PM brushless machines due to eccentricity. IEEE Trans Magn2013;49:492736.10.1109/TMAG.2013.2246181Search in Google Scholar

12. FuchsEF, RosenbergLT. Analysis of an alternator with two dis- placed stator windings. IEEE Trans Power App Syst1974;93:177686.10.1109/TPAS.1974.293829Search in Google Scholar

13. SchiferlRF, OngCM. Six phase synchronous machine with AC and DC stator connections. IEEE Trans Power App Syst1983;102:268593.10.1109/TPAS.1983.317674Search in Google Scholar

14. KataokaT, WatanabeEH. Steady-state characteristics of a current-source inverter/double-wound synchronous machine system for AC power supply. IEEE Trans Ind Appl1980;16:26270.10.1109/TIA.1980.4503780Search in Google Scholar

15. HolmbergMT, SrivastavaK. Double winding, high-voltage cable wound generator: steady-state and fault analysis. IEEE Trans Energy Convers2004;19:24550.10.1109/TEC.2004.827024Search in Google Scholar

16. SwettDW, BlancheJG. Flywheel charging module for energy storage used in electromagnetic aircraft launch system. IEEE Trans Magn2005;41:5258.10.1109/TMAG.2004.838745Search in Google Scholar

17. TestaA, AkramMF, BurchR, CarpinelliG, ChangG, DinavahiV, et al. Interharmonics: theory and modeling. IEEE Trans Power Deliv2007;22:233548.10.1109/TPWRD.2007.905505Search in Google Scholar

18. HanzelkaZ, BienA. Power quality application guide: harmonics, interharmonics 3.1.1. Brussels: European Copper Institute; Hemel: Copper Development Association, 2004.Search in Google Scholar

19. HoevenaarsT, LeDouxK, ColosinoM. Interpreting IEEE Std 519 and Meeting its Harmonic Limits in VFD Applications. Record of the 50th Annual Petroleum and Chemical Industry Conference, 2003. IEEE Industry Applications Society.Search in Google Scholar

20. KanaoN, HayashiY, MatsukiJ. Analysis of even harmonics generation in an isolated electric power system. Electr Eng Jpn2009;167:5663.10.1002/eej.20592Search in Google Scholar

21. YazdaniD, MojiriM, BakhshaiA, JoósG. A fast and accurate synchronization technique for extraction of symmetrical components. IEEE Trans Power Electron2009;24:67484.10.1109/TPEL.2008.2010321Search in Google Scholar

Published Online: 2015-4-24
Published in Print: 2015-6-1

©2015 by De Gruyter

Downloaded on 28.3.2024 from https://www.degruyter.com/document/doi/10.1515/ijeeps-2014-0141/html
Scroll to top button