Characteristic analysis of parallel-rotor hybrid generator based on exciter types

Hyeon Myeong Woo; Dong-Hee Lee

Characteristic analysis of parallel-rotor hybrid generator based on exciter types

Hyeon Myeong Woo

Dong-Hee Lee

Vol. 20, No. 3, pp. 774-783, May 2020

10.1007/s43236-020-00068-w

Hybrid generator

Parallel-rotor structure

PM exciter

Winding exciter

Efficiency

Abstract

In this paper, a characteristic analysis and a performance comparison of a permanent magnet (PM) exciter and a conventional winding exciter for a parallel-rotor-type hybrid generator is presented. The proposed rotor of the hybrid generator comprises two separate structures, a PM and a field winding. The two rotors are attached in parallel to improve the efficiency and selfstarting characteristics. Using this configuration, the PM rotor produces base flux to generate enough no-load voltage and the field winding rotor is used to regulate that output voltage. Because of the PM rotor flux, the automatic voltage regulator can self-start the generator by taking the voltage induced by the PM flux, regardless of the exciter. The self-start capability, dynamic response and efficiency of both exciters are compared and investigated. It can be confirmed through experiments that the PM exciter shows better efficiency and dynamic response with reduced mechanical complexity.

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Cite this article

[IEEE Style]

H. M. Woo and D. Lee, "Characteristic analysis of parallel-rotor hybrid generator based on exciter types," Journal of Power Electronics, vol. 20, no. 3, pp. 774-783, 2020. DOI: 10.1007/s43236-020-00068-w.

[ACM Style]

Hyeon Myeong Woo and Dong-Hee Lee. 2020. Characteristic analysis of parallel-rotor hybrid generator based on exciter types. Journal of Power Electronics, 20, 3, (2020), 774-783. DOI: 10.1007/s43236-020-00068-w.