Volume 5 Number 3 (Jun. 2013)
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IJCEE 2013 Vol.5(3): 322-325 ISSN: 1793-8163
DOI: 10.7763/IJCEE.2013.V5.723

Design and Research on the LCL Filter in Three-Phase PV Grid-Connected Inverters

Xu Renzhong, Xia Lie, Zhang Junjun, and Ding Jie
Abstract—Aiming at the problem of filtering in the three-phase PV grid-connected inverters, the mathematics models for L filter and LCL filter are established. The values of capacitances and inductances are calculated by analyzing the related constraint conditions for the main parameters of LCL filter. There are two ways to increase the value of damping resistor of the filter capacitor. The impacts on the stability and filtering property, in both ways, are analyzed. The simulation result indicated that the LCL filter achieve the best performance than L filter and LC filter. Under the prerequisite of increasing system stability, parallel resistor is even more advantageous than series resistor. And the validity of theoretical results is confirmed.

Index Terms—LCL Filter, Series damping resistors (SDR), parallel damping resistors (PDR), harmonic.

The authors are with the National Energy Solar Center (EPRI), China. (e-mail: xurenzhong@epri.sgcc.com.cn, xialie@epri.sgcc.com.cn, zhangjunjun@epri.sgcc.com.cn, Dingjie@epri.sgcc.com.cn).

Cite:Xu Renzhong, Xia Lie, Zhang Junjun, and Ding Jie, "Design and Research on the LCL Filter in Three-Phase PV Grid-Connected Inverters," International Journal of Computer and Electrical Engineering vol. 5, no. 3, pp. 322-325, 2013.

General Information

ISSN: 1793-8163
Frequency: Semiyearly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, Engineering & Technology Digital Library, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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