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- Title
一种基于全波平衡电抗器的双反星形12 脉波整流器.
- Authors
王景芳; 姚绪梁; 冯帅; 关琦; 沈龙; 杨世彦
- Abstract
In order to effectively suppress the input current harmonic and output voltage ripple of the conventional double-star rectifier, the double-star 12-pulse rectifier based on full-wave inter-phase reactor is proposed, which consists of conventional double-star rectifier and full-wave inter-phase reactor. The full-wave inter-phase reactor includes inter-phase reactor with secondary winding and auxiliary single-phase full-wave rectifier. The auxiliary single-phase full-wave rectifier increases the output current and voltage mode of the two three-phase half-wave rectifier bridges by extracting the square wave current from the secondary win-ding of the inter-phase reactor. Then, according to the relationship between the current of both AC and DC sides and the voltage of DC side, the pulse number of double-star rectifier is extended from 6 to 12, which significantly suppresses the input current harmonics and the output voltage ripple. The current flowing through the auxiliary single-phase full-wave rectifier is only 6.69 % of the load current. Compared with the existing pulse multiplication method based on tapped inter-phase reactor, the proposed method has lower conduction loss and is more suitable for low voltage and high power industrial applications, as well as the advantages of simple and reliable circuit structure, easy implementation and low cost. An experimental prototype with power of 1.1 kW is developed to verify the correctness of theoretical analysis and the effectiveness of the proposed method.
- Publication
Electric Power Automation Equipment / Dianli Zidonghua Shebei, 2020, Vol 40, Issue 7, p96
- ISSN
1006-6047
- Publication type
Article
- DOI
10.16081/j.epae.202007031