The Simple Harmonic Analysis Method of the Multi-Carrier PWM Techniques by Using the Output Phase Voltage in the Multi-Level Inverter

출력 상전압을 이용한 멀티-캐리어 PWM 기법의 간단한 고조파 분석 방법

  • Published : 2003.07.01


This paper deals with a simple method in order to analyze and compare the harmonic characteristics in the multi-level inverter. Generally, the magnitude of harmonic components becomes different according to the multi-carrier Pulse Width Modulation(PWM) techniques, the modulation index($M_i$) and the switching frequency The previous papers analyzed the harmonic characteristics from the viewpoint of the space voltage vector. Hence, the calculation of the harmonic vector becomes more difficult and complex in 4-level or over 5-level. However, the proposed method has reduced an amount of calculation and simplified the process of it, using the relationship between the reference voltage and the output phase voltage to the load neutral point. It is applied to the 5-level cascade inverter and the harmonic characteristics for each multi-carrier PWM technique are compared through the simulation.


  1. Joohn-Sheok Kim, Seung-Ki Sul, 'A Novel Voltage Modulation Technique of the Space Vector PWM,' KIEE Trans., vol. 44, pp. 865-874, Jul 1995
  2. Erwin Keyszig, Advanced engineering mathematics. New York : Wiley, 1962
  3. Fukuda, S., Suzuki, K., 'Using harmonic distortion determining factor for harmonic evaluation of carrier-based PWM methods', in conf, Rec.,IEEE-IAS Annu. Meeting, vol. 2, Oct 1997, pp. 1534-154
  4. V. G. M. Calais, 'Application specific harmonic performance evaluation of multi-carier PWM techniques', in Proc. IEEE PESC'98, vol. 1, May 1998, pp. 172-178
  5. B. P. McGrath, D. G. Holmes, T. A. Lipo, 'Optimised Space Vector Switching Sequences for Multi-level Inverters', in Proc. IEEEE APEC'01, vol. 2, 2001, pp. 1123-1129
  6. A. M. Hava. R. J. Kerkman, T. A. Lipo, 'Simple Analytical and Graphical Methods for Carrier-Based PWM-VSI Drives', IEEE Trans. Power Electronics, vol. 14, Jan 1999, pp. 49-61
  7. Calais, M., Borle, L.J., Agelidis, V. G., 'Analysis of multicarrier PWM methods for a single-phase five level inverter', in Proc. IEE PESC'01, vol. 3, 2001, pp. 1351-1356
  8. Yo-Han Lee, Dong-Hyun Kim, Dong-Seok Hyun, 'Carrier Based SVPWM Method for Three-Level System with Reduced HDF', in conf. Rec. IEEE-IAS Annu. Meeting, vol. 3, 2000, pp. 1996-2003
  9. Dong-Hyun Kim, Dae-Wook Kang, Yo-Han Lee, Dong-Seok Hyun, 'The analysis and comparison of carrier-based PWM methods for 3-level inverter', in Proc. IEEE IECON'00, vol. 2, 2000, pp. 1316-1321
  10. L. Abraham and R. Blumee, 'Optimization of three phase pulse pattern by variable zero suquence component,' in EPC Conf. Rec, 1991, pp. 272-277
  11. J. W. Kolar, H. Ertl, F. C. Zach, 'Calculation of the passive and active component stress of thre phase PWM converter systems with high pulse rate,' in EPC Conf. Rec, 1989, pp. 1303-1311
  12. D. W. Kang, Y. H. Lee, B. S. Suh, C. H. Choi and D. S. Hyun, 'An Improved Carrierwave-based SVPWM Method Using Phase Voltage Redundancies for Generalized Cascaede Multilevel Inverter Topology,' in Proc. IEEE APEC'00, vol. 1, 2000, pp. 542-548
  13. G. Carrara, S. Gardella, M. Marchesoni, R. Salutari, G. Sciutto, 'A New Multilevel PWM Method: A Theoetical Analysis', IEEE Trans. Power Electronics., vol. 7, Jul 1992, pp. 497-505
  14. Li Li, Czarkowski, D.. Yaguang Liu, Pillay, P., 'Multilevel space vector PWM technique based on phase-shift harmonic suppression', in Proc. IEEE APEC'00, vol. 1, 2000, pp. 535-541
  15. KIEE Trans. v.44 A Novel Voltage Modulation Technique of the Space Vector PWM Joohn-Sheok Kim;Seung-Ki Sul