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Title: Mitigation of interharmonics due to voltage source inverter fed asds by using combined control of passive filters
Authors: Vijayakumar Arumugam, Mahendra Babu TK
Journal: ARPN Journal of Engineering and Applied Sciences
Publisher: Khyber Medical College, Peshawar
Country: Pakistan
Year: 2013
Volume: 8
Issue: 9
Language: English
In this paper, solutions to mitigate interharmonics produced by voltage source inverter fed Adjustable Speed Drives are analysed. A new scheme called combined control of passive filters to mitigate the interharmonics effectively is also proposed. Interharmonics are generated because of overmodulation of inverter or due to unbalanced load. The effect of load unbalance on rectifier input current is analysed and simulation is carried out in PSIM software. First, the effect of dc link inductance on input current interharmonics is analysed. Then the mitigation of interharminics by using combination of two passive filters, One is at ac input side and another is at dc link are analysed and simulated. The effective reduction of interharmonics is proved.
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