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http://dx.doi.org/10.6113/TKPE.2013.18.1.10

Active Damping of LCL Filter for Three-phase PWM Inverter without Additional Hardware Sensors  

An, Byoung-Woong (Dept. of Control & Instrumentation Engineering, Korea Nat'l Univ of Transportation)
Shin, Hee-Keun (VC Tech, Engineer, R&D Center)
Kim, Hag-Wone (Dept. of Control & Instrumentation Engineering, Korea Nat'l Univ of Transportation)
Cho, Kwan-Yuhl (Dept. of Control & Instrumentation Engineering, Korea Nat'l Univ of Transportation)
Han, Byoung-Moon (Dept. of Electrical Eng., Myongji University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.18, no.1, 2013 , pp. 10-17 More about this Journal
Abstract
In this paper, a new active damping method of LCL filter without capacitor voltage sensors is proposed for 3 phase PWM Inverter. Normally, L filter or LCL filter is used as an output filter of grid connected PWM inverter. An LCL filter has more excellent performance than L filter to reduce harmonic current, so the small inductance value can be used. However, the resonance problem in LCL filter is happen due to the zero impedance by the addition of LC branch. To solve the resonance problem, the various active damping method has been proposed so far. Generally, the virtual resistor active damping methods is required to additional hardware sensors for measurement of capacitor voltage and current. In this paper, the new active damping method is proposed without any capacitor voltage or current sensors. In the proposed method, the resonance component of the capacitor voltage of LCL filter can be observed by a simple MRAS(Model Reference Adaptive System) observer without additional hardware sensors, and this component is suppressed by feedforward compensation. The validity of the proposed method is proven by simulation and experiment on the 3-phase PWM inverter system.
Keywords
PWM inverter; active damping; MRAS(Model Reference Adaptive System) observer;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 IEEE std. 519-1992-IEEE Recommended Practices and Requirement for Harmonic Control in Electrical Power Systems-IEEE Industry Applications Society/Power Engineering Socitey.
2 M. Liserre, F. Blaabjerg, and S. Hansen, "Design and Control of an LCL-filter based Three-phase Active Rectifier," IEEE Trans. On. Ind. Appl., Vol. 41, No. 5, 2005.
3 W. sun, X. Wu, P. Dai, and J. Zhou, "An Over View of Damping Methods for Three-phases PWM Rectifier," in Proc of IEEE ICIT, Chengdu, China, pp. 1-5, April 21-24, 2008,
4 P. K. Dahono, "A Control Method for DC-DC Converter that has an LCL output filter based on new virtual capacitor and resistor concept," in Proceedings of PESC'04, pp. 36-42, 2004.
5 V. Blasko and V. Kaura, "A novel control to actively damp resonance in input LC fulter of a three- phase voltage source converter," IEEE Trans. Ind. Applicat., Vol. 33, Mar.-Apr. 1997.   DOI   ScienceOn
6 Hee-Keun Shin, Hag-Wone Kim, Kwan-Yuhl Cho, yung-Kuk Lim, "A Current Controller with the Compensation of the Input Voltage Unbalance and Distortion for Three Phase PWM Rectifier," Transactions of the Korean Insititute of Power Electronics, Vol. 16, No. 6, pp. 594-601, Dec. 2011.   과학기술학회마을   DOI   ScienceOn
7 Karl J. Astrom, Bjorn Wittenmark "Adaptive Control-Second Edition, 2008.
8 Shiying Tang, Li Peng, Yong Kang, "Active Damping Method Using Grid-Side Current Feedback for Active Power Filters with LCL Filters," Journal of Power Electronics, Vol. 11, No. 3, pp. 311-318, May. 2011.   과학기술학회마을   DOI   ScienceOn
9 June-Seok Lee, Hae-Gwang Jeong, Kyo-Beum Lee, "Active Damping for Wind Power Systems with LCL Filters Using a DFT," Journal of Power Electronics, Vol. 12, No. 2, pp. 326-331, Mar. 2012.   과학기술학회마을   DOI   ScienceOn
10 M. Cirrincione and M. Pucci, "An MRAS-based Sensorless High-Performance Induction Motor Drive With a Predictive Adaptive Model," IEEE Trans. on Industrial Electronics, Vol. 52, No. 2, pp. 532-551, 2005, April.   DOI   ScienceOn