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Studies from Taiyuan University of Technology Yield New Data on Power Electronics (Source Current Control Strategy of Active Power Filters for Unbalanced Load Compensation In Three-phase Four-wire Distribution Networks)

Electronics Daily

2019 MAY 23 (NewsRx) -- By a News Reporter-Staff News Editor at Electronics Daily -- Researchers detail new data in Electronics - Power Electronics. According to news reporting out of Taiyuan, People’s Republic of China, by NewsRx editors, research stated, “This paper proposes a modified control strategy to improve the performance of three-phase four-leg shunt active power filters (APFs) for the compensation of three phase unbalanced loads. Unbalanced current cannot be obtained accurately by a harmonic detector due to the lower frequency.”

Financial supporters for this research include National Key R&D Program of China, National Natural Science Foundation of China, Shanxi Province Applied Basic Research project, State Grid Shanxi Electric Power Company Science and Technology Project Research.

Our news journalists obtained a quote from the research from the Taiyuan University of Technology, “The proposed control strategy eliminates conventional harmonic detectors by directly regulating the source current. Therefore, the computational complexity is greatly reduced and the performance of the APF is improved. A mathematic model has been developed based on the source currents. The corresponding controllers have been designed based on the sinusoidal internal model principle. The proposed control strategy can guarantee excellent compensation performance and stable operation after an extreme disturbance such as a short circuit fault. In addition, the proposed technique can selectively compensate specific harmonics.”

According to the news editors, the research concluded: “A 50kVA prototype APF is implemented in the laboratory to validate the feasibility and performance of the proposed control strategy.”

For more information on this research see: Source Current Control Strategy of Active Power Filters for Unbalanced Load Compensation In Three-phase Four-wire Distribution Networks. Journal of Power Electronics, 2018;18(5):1545-1554. Journal of Power Electronics can be contacted at: Korean Inst Power Electronics, Rm 408, Korea Science & Technology Bldg, 635-4, Yeoksam-Dong, Kangnam-Gu, Seoul, 135-703, South Korea.

Our news journalists report that additional information may be obtained by contacting X.Q. Han, Taiyuan University of Technology, College of Electrical & Power Engineering, Shanxi Key Lab Power Syst Operat & Control, Taiyuan, Shanxi, People’s Republic of China. Additional authors for this research include L. Wang, R.Q. Meng, C.G. Ren, Q. Wang and B.F. Zhang.

The direct object identifier (DOI) for that additional information is: This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.


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