An Improved DC-Link Voltage Control Strategy of SAPF under Unbalanced Loads
Authors: 
Maoning Xu, Li Peng, Xuefeng WangAuthors Info & Claims
Maoning Xu, Li Peng, Xuefeng WangAuthors Info & ClaimsPages 9 - 15
Abstract
The shunt active power filter (SAPF) based on three-leg voltage source converter is widely used to compensate the harmonic currents caused by nonlinear loads of grid. However, when the nonlinear loads are unbalanced, the grid currents compensated by SAPF are still unbalanced and distorted even an accurate current detection method is adopted. The reason is that when SAPF compensates the unbalanced loads of grid, the DC-link voltage will contain the second-order harmonic which has influence on the d-axis reference of SAPF's current control loop. Then the output of the SAPF will contain extra third-order harmonic and fundamental negative sequence currents, which make grid currents distorted and unbalanced. In this paper, in order to overcome the problem of poor filtering and dynamic performance by using traditional PI control for DC-link voltage, a MAF-PI controller which combines a moving average filter (MAF), a phase-lead compensator (PLC) and a PI control into DC-link voltage control loop is proposed. This strategy realizes the accurate harmonic currents compensation and excellent DC-link voltage dynamic response of SAPF for unbalanced loads. The effectiveness of the proposed strategy is verified through simulation results.
References
[1]
H. Akagi, "Active Harmonic Filters," in Proceedings of the IEEE, vol. 93, no. 12, pp. 2128--2141, Dec. 2005.
[2]
X. Wei et al., "Performance Analysis of Three-Phase Three-Wire Shunt Active Power Filter Compensating for Unbalanced Loads," IECON 2007-33rd Annual Conference of the IEEE Industrial Electronics Society, Taipei, 2007, pp. 1875--1879.
[3]
M. Tali, A. Essadki and T. Nasser, "Harmonic detection methods of Shunt Active Power Filter under unbalanced loads," 2016 International Renewable and Sustainable Energy Conference (IRSEC), Marrakech, 2016, pp. 1017--1023.
[4]
M. I. M. Montero, E. R. Cadaval and F. B. Gonzalez, "Comparison of Control Strategies for Shunt Active Power Filters in Three-Phase Four-Wire Systems," in IEEE Transactions on Power Electronics, vol. 22, no. 1, pp. 229--236, Jan. 2007.
[5]
X. Wei, K. Dai, H. Peng, Y. Kang and J. Chen, "Research on Control Strategy for Three-Phase Three-Wire Shunt Active Power Filter under Unbalanced Loads," EUROCON 2007-The International Conference on "Computer as a Tool", Warsaw, 2007, pp. 1350--1354.
[6]
W. Lyu et al., "A Novel Three Phase Unbalance Detection and Compensation method of Active Power Filter," 2018 Chinese Automation Congress (CAC), Xi'an, China, 2018, pp. 418--422.
[7]
P. Wang, W. Cao, K. Liu and J. Zhao, "An Unbalanced Component Detection Method and Compensation Strategy Based on Second-Order Generalized Integrator (SOGI)," 2019 IEEE Power and Energy Conference at Illinois (PECI), Champaign, IL, USA, 2019, pp. 1--6.
[8]
Biricik, Samet & Redif, Soydan & Ozerdem, Ozgur Cemal & Basu, Malabika, "Control of the shunt Active Power Filter under non-ideal grid voltage and unbalanced load conditions." Proceedings of the Universities Power Engineering Conference. 1-5.10.1109/ UPEC. 2013.
[9]
P. Dang and J. Petzoldt, "A new control method for eliminating the 2nd harmonic at the DC link of a shunt APF under an unbalanced and nonlinear load," Proceedings of the 2011 14th European Conference on Power Electronics and Applications, Birmingham, 2011, pp. 1--5.
[10]
L. R. Limongi, D. Roiu, R. Bojoi and A. Tenconi, "Analysis of Active Power Filters operating with unbalanced loads," 2009 IEEE Energy Conversion Congress and Exposition, San Jose, CA, 2009, pp. 584--591.
[11]
Dawei Gao, Qingchun Lu and Xlaorui Sun, "Design and performance of an active power filter for unbalanced loads," Proceedings. International Conference on Power System Technology, Kunming, China, 2002, pp. 2496--2500 vol.4.
[12]
P. Verdelho and G. D. Marques, "An active power filter and unbalanced current compensator," in IEEE Transactions on Industrial Electronics, vol. 44, no. 3, pp. 321--328, June 1997.
[13]
M. S. Mousavi, A. Jalilian and M. Asadi, "A sliding mode control method of dc-link capacitor voltage used in active power filter," 2015 30th International Power System Conference (PSC), Tehran, 2015, pp. 123--128.
[14]
S. Golestan, M. Ramezani, J. M. Guerrero, F. D. Freijedo and M. Monfared, "Moving Average Filter Based Phase-Locked Loops: Performance Analysis and Design Guidelines," in IEEE Transactions on Power Electronics, vol. 29, no. 6, pp. 2750--2763, June 2014.
[15]
S. Golestan, J. M. Guerrero and A. M. Abusorrah, "MAF-PLL With Phase-Lead Compensator," in IEEE Transactions on Industrial Electronics, vol. 62, no. 6, pp. 3691--3695, June 2015.
[16]
Acuna P, Moran L, Rivera M, et al. Improved active power filter performance for renewable power generation systems. IEEE Transactions on Power Electronics, 2014, 29(2): 687--694.
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- An Improved DC-Link Voltage Control Strategy of SAPF under Unbalanced Loads
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Published In
September 2020
93 pages
ISBN:9781450387569
DOI:10.1145/3429536
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Published: 21 December 2020
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EEET '20
EEET '20: 2020 3rd International Conference on Electronics and Electrical Engineering Technology
September 27 - 29, 2020
Kitakyushu, Japan
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