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Analysis of brushless three-phase synchronous generator without exciter |
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| Authors: | Sakutaro Nonaka Katsumi Kesamaru Kazuo Horita |
| Affiliation: | 1. Kyushu University Sakutaro Nonaka graduated in 1952 from Kyushu University and was appointed a Lecturer there in 1954. He also has Dr. of Eng. degree. He was promoted to an Assistant Professor at Kyushu University in 1955 and to Full Professor at Kyushu Institute of Technology in 1965. He was appointed a Full Professor at Kyushu University in 1967 and Chair of Electrical Apparatus Div. He served as a Director of Superconducting Magnet Research Center from April 1989 to March 199 1. He has been involved in research on brushless single-phase synchronous generator, sinusoidal input/output-type PWh4 current source converter-inverter system, superconducting motor, linear induction motor for new railway system, magnetically levitated railway system, etc. He was awarded a 1971-outstanding paper prize from EEJ, and 1985-IEEElIAS outstanding paper prize. He served as a 1983-chairman of Kyushu Branch of IEEJ. He has been serving as a member of operation committee of ICEM since 1980 and electrical machinery committee of IEEE/IAS since 1986. He is a member of the power electronics study group.;2. Kyushu University Katsumi Kesamaru graduated from Saga University in 1972 and obtained a Ph.D. from Kyushu University in March 1977. He was appointed an Assistant at Kyushu University in April 1977 and promoted to Associate Professor in July 1989. He is interested in the brushless generator and magnetic field analysis.;3. Tokyo Electric Power Co. Kazuo Horita graduated from Kagoshima University in March 1991 and obtained a Master's degne from Kyushu University the same year. He joined Tokyo Electric Power Co. in April 1991. |
| Abstract: | Recently, a demand for small-capacity generators has been increasing as electric sources in small ships and automobiles or as portable electric sources driven by engines. It is desired that the structure of small-capacity generators be simple and robust, and that the generators be highly reliable, easily maintained and controlled. This paper describes an analysis of the original brushless synchronous generator without exciter. The output voltage can be adjusted in the wide range by controlling the stator dc current. To analyze the characteristics of this generator, the finite element method is applied. It is found that the results of theoretical analysis agree well with the experimental results. |
| Keywords: | Brushless synchronous generator half-wave rectifier finite element method magnetic field analysis |