Browse > Article
http://dx.doi.org/10.6113/TKPE.2012.17.6.478

PWM Method with Low d-axis Current Ripple for reducing Input Current THD at Light Loads in Three Phase PWM Rectifier  

Jin, Yong-Sin (Dept. of Control & Instrumentation Eng., Korea University of Transportation)
Shin, Hee-Keun (Technology Research Lab., VCTech.)
Kim, Hag-Wone (Dept. of Control & Instrumentation Eng., Korea University of Transportation)
Cho, Kwan-Yuhl (Dept. of Control & Instrumentation Eng., Korea University of Transportation)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.17, no.6, 2012 , pp. 478-485 More about this Journal
Abstract
In this paper, a new PWM method is proposed to reduce the input current harmonics of 3 phase PWM rectifier. In the conventional carrier comparison PWM method, a triangular wave is generally used as the carrier wave. However, the large d-axis current ripple by the triangle carrier wave may be a source of large input current THD(Total Harmonic Distortion). In this paper, a new carrier comparison PWM method with saw tooth wave is proposed. Depending on the sector where the voltage command vector places, one of the rising or falling saw tooth wave is selected. To reduce the switching losses of the saw tooth carrier PWM, the discontinuous PWM is also presented. The proposed PWM method can reduce the d-axis current ripple as well as the switching losses. The performance of the conventional and proposed PWM methods is verified by the simulation and experimental results.
Keywords
PWM rectifier; SVPWM; sawtooth carrier PWM; discontinuous PWM; THD;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 J. W. Dixon and B. T. Ooi, "Indirect current control of a unity power factor sinusoidal boost type 3-phase rectifier," IEEE Trans. on Industrial Electronics, Vol. 35, pp. 508-515, Nov. 1988.   DOI   ScienceOn
2 R. W. Erickson and D. Maksimovic, Fundamentals of Power Electronics, Second Edition, Kluwer Academic Publishers, 2001.
3 L. Mihalache, "A high performance DSP controller for three-phase PWM rectifiers with ultra low input current THD under unbalanced and distorted input voltage," Conference Record of IEEE-IAS Annual Meeting, pp. 138-144, 2005.
4 H. K. Shin, B. C. Yoon, H. W. Kim, K. Y. Cho, B. K. Lim and D. Y. Ko, "An MRAS based current harmonics reduction for three phase PWM rectifier under input voltage distortion," International Conference of Power Electronics (ICPE) and ECCE-Asia, pp. 2267-2273, 2011.
5 N. C. Park, H. S. Mok, J. K. Ji and S. H. Kim, "Current compensation method of three phase PWM converter under distorted source voltages," The Transactions of the Korean Institute of Power Electronics, Vol. 13, No. 5, pp. 352-359, Oct. 2008.   과학기술학회마을
6 J. I. Jang, D. C. Lee and H. G. Kim, "Current Control of Three-Phase PWM Converters under Unbalanced and Distorted Source Voltage," The Transactions of the Korean Institute of Power Electronics, Vol. 12, No.1, pp. 27-36, Feb. 2007.   과학기술학회마을
7 D. W. Chung, Unified analysis of PWM method for three phase voltage source inverter using offset voltage, Ph. D thesis of Seoul National University, Feb. 2000.
8 D. W. Chung and S. K. Sul, "Minimum-loss strategy for three-phase PWM rectifier," IEEE Trans. on Industrial Electronics, Vol. 46, pp. 517-526, Jun. 1999.   DOI   ScienceOn
9 D. H. Kim, C. H. Cho, C. Y. Choi, C. H. Byeon, S. G. Kim and T. W. Kim, "Proposed Control Scheme with simplified Switching Sequence for 3-phase Current Source Converter," Annual Conference of the KIPE, pp. 532-533, June. 2012.