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Article

An Inductive Active Filtering Method for Low-Voltage Distribution Networks

1
School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China
2
Jiangsu Vocational Institute of Architectural Technology, Xuzhou 221116, China
*
Author to whom correspondence should be addressed.
Academic Editors: Fu-Cheng Wang, Chih-Cheng Lu, Sendren Sheng-Dong Xu and Wei-Jiun Su
Machines 2021, 9(11), 258; https://doi.org/10.3390/machines9110258
Received: 2 September 2021 / Revised: 20 October 2021 / Accepted: 28 October 2021 / Published: 29 October 2021
(This article belongs to the Special Issue Design and Control of Electrical Machines)
Three-phase unbalanced and nonlinear loads aggravate harmonic problems in low-voltage distribution networks. In this paper, a hybrid inductive and active filter (HIAF) system with a Ddy converter transformer is proposed. By establishing the circuit and corresponding mathematical models, the working mechanism of the HIAF system in harmonic suppression is analyzed. In the designed HIAF system, we install the detection point on the grid-side winding and the compensation point on the filtering winding. Since both windings have the same connection, no phase compensation between the harmonic detection point and compensation point is demanded. Eventually, we apply a harmonic damping control and zero-value impedance control strategy to realize harmonic suppression under both balanced and unbalanced loads. The simulation results show that the HIAF system can effectively suppress harmonics under various load conditions. View Full-Text
Keywords: harmonic suppression; hybrid inductive and active filter; damping control; zero-value impedance design harmonic suppression; hybrid inductive and active filter; damping control; zero-value impedance design
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MDPI and ACS Style

Li, D.; Zhang, X.; Deng, X.; Li, C. An Inductive Active Filtering Method for Low-Voltage Distribution Networks. Machines 2021, 9, 258. https://doi.org/10.3390/machines9110258

AMA Style

Li D, Zhang X, Deng X, Li C. An Inductive Active Filtering Method for Low-Voltage Distribution Networks. Machines. 2021; 9(11):258. https://doi.org/10.3390/machines9110258

Chicago/Turabian Style

Li, Delu, Xiao Zhang, Xianming Deng, and Changyi Li. 2021. "An Inductive Active Filtering Method for Low-Voltage Distribution Networks" Machines 9, no. 11: 258. https://doi.org/10.3390/machines9110258

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