A novel 12‐pulse full‐wave rectifier with simple circuit configuration. (26th July 2020)

• Record Type: Journal Article
• Authors: Wang, Jingfang; Yao, Xuliang; Guan, Qi; Yang, Shiyan
• Is Part Of: International journal of circuit theory and applications. Volume 48:Number 10(2020)
• Page Start: 1676
• Page End: 1695
• Publication Date: 2020-07-26
• Subjects: harmonic suppression -- pulse‐doubling -- voltage ripple -- 12‐pulse rectifier; Electric circuit analysis -- Periodicals; 621.319205
• DOI: 10.1002/cta.2837
• Languages: English
• ISSNs: 0098-9886

Abstract

Summary: In this paper, a novel full‐wave 12‐pulse rectifier with simple circuit configuration is proposed. The proposed full‐wave 12‐pulse rectifier consists of a conventional six‐pulse full‐wave rectifier and an auxiliary single‐phase full‐bridge rectifier (ASFR). The ASFR extracts a rectangular current from the DC side of the rectifier to increase the output states of two three‐phase half‐wave rectifiers, then the conventional six‐pulse full‐wave rectifier is upgraded to a 12‐pulse full‐wave rectifier in accordance with the current relationship between AC and DC sides and the relationship between DC‐side voltages. Since only a low‐capacity ASFR (6.3% P d ) is needed, the proposed 12‐pulse rectifier has the least number of components count, making it robust and simple to implement. The average output current of ASFR is only 6.7% of the load current, which makes it more suitable for low‐voltage and high‐current applications. A prototype with a power of 1 kW is built to verify the correctness of the theoretical analysis. Abstract : A novel 12‐pulse full‐wave rectifier, which consists of a six‐pulse rectifier and an auxiliary singlephase full‐bridge rectifier (ASFR), is proposed. The ASFR extracts a rectangular current to increase the output states of three‐phase half‐wave rectifiers, which in turn extends the six‐pulse rectifier to a 12‐pulse rectifier. Since only a low‐capacity ASFR is needed, the proposed rectifier has a simple circuit configuration and is simple to implement.