A study of three-phase active power filters under nonideal mains voltages |
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| Affiliation: | 1. Department of Electrical Engineering, National Cheng Kung University, Tainin, Taiwan 70101, Taiwan, ROC;2. Department of Electrical Engineering, National Kaohisung Institute of Technology, Kaohsiung, Taiwan 80701, Taiwan, ROC;1. School of Electrical Engineering, Wuhan University, Wuhan City, Hubei Province, China;2. Wuhan Institute of Marine Electric Propulsion, Wuhan City, Hubei Province, China;1. College of Electric Power, South China University of Technology, 510640 Guangzhou, China;2. Faculty of Electric Power Engineering, Kunming University of Science and Technology, 650504 Kunming, China |
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| Abstract: | The performance of three-phase active power filters under nonideal voltage scenarios is investigated in this paper. It begins with the analysis of an instantaneous reactive power algorithm applied for the three-phase active power filter design, which was found to present poor performance under nonideal test scenarios. This motivates our proposed design of a new active power filter for solving such problems. In the proposed scheme, the circuit not only shows its effectiveness in the tests, but also implements with a simpler control circuit when compared with the other algorithm. The method has been implemented as a prototype and tested through various simulation cases, including ideal mains voltage, unbalanced three-phase mains voltage, and distorted mains voltage. Test results have demonstrated the feasibility and practicality of the proposed method approach for the applications. |
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