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In this paper, two novel brushless excitation methods for wound rotor excitation synchronous generators are proposed in this paper. Compared with the electric excitation synchronous generators with an exciter, these two kinds of generators can integrate the function of the exciter into the main generator. The exciter can be eliminated. The axial length of the generation system can be shorten. The...
A high-speed, small volume, light weight, high efficiency and power density generator for the miniature turbojet system has been gradually investigated. This paper focuses on the design of a 500W, 100000rpm generator suitable for use with the turbojet system. The design procedure selects the suitable machine type, at the same time, the rotor structure, the design of stator and windings are discussed...
Consideration of the structure and the operation principle of Switched Reluctance Motor (SRM), it is possible to obtain super high speed drive. Therefore, a three-phase 6/2 SRM, the speed of which is 130,000 rpm, is adopted for super high speed drive. Based on the two-dimensional finite element method (FEM), the torque-angle characteristics of 6/2 SRM are analyzed and the motor structure is improved...
A novel hybrid excitation synchronous generator (HESG) with tangential/radial magnetic path in parallel connection is proposed in this paper. The HESG combines the merits of permanent magnet synchronous generators and electric excitation synchronous generators. The structure characteristics of the HESG are described and the operation principle is introduced. The basic characteristics of the HESG are...
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