Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/85320
Title: Voltage Distortion Suppression for Off-grid Inverters with an Improved Load Current Feedforward Control
Authors: Geng, Yiwen
Zhang, Xue
Li, Xiaoqiang
Wang, Kai
Yuan, Xibo
Keywords: Output impedance
Load current feedforward
Issue Date: 2017
Source: Geng, Y., Zhang, X., Li, X., Wang, K., & Yuan, X. (2017). Voltage Distortion Suppression for Off-grid Inverters with an Improved Load Current Feedforward Control. Journal of Power Electronics, 17(3), 716-724.
Series/Report no.: Journal of Power Electronics
Abstract: The output voltage of an off-grid inverter is influenced by load current, and the voltage harmonics especially the 5th and 7th are increased with nonlinear loads. In this paper, to attenuate the output voltage harmonics of off-grid inverters with nonlinear loads nearby, a load current feedforward is proposed. It is introduced to a voltage control loop based on the Positive and Negative Sequence Harmonic Regulator (PNSHR) compensation to modify the output impedance at selective frequencies. The parameters of the PNSHR are revised with the output impedance of the off-grid inverter, which minimizes the output impedance of the off-grid inverter. Experimental results verify the proposed method, showing that the output voltage harmonics caused by nonlinear loads can be effectively suppressed.
URI: https://hdl.handle.net/10356/85320
http://hdl.handle.net/10220/43686
ISSN: 1598-2092
DOI: 10.6113/JPE.2017.17.3.716
Rights: © 2017 Korean Institute of Power Electronics (KIPE). This paper was published in Journal of Power Electronics and is made available as an electronic reprint (preprint) with permission of Korean Institute of Power Electronics (KIPE). The published version is available at: [http://dx.doi.org/10.6113/JPE.2017.17.3.716]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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