Abstract
This paper presents a prototype of high speed brushless synchronous generators (BSG) design for the application in autonomous electric power generation systems (e.g., airplane power grid). Commonly used salient pole field of the main generator part of BSG was replaced with a prototype non-salient pole field. The main objective of the research is an investigation into the advantages and disadvantages of a cylindrical field of the main generator part of BSG over the original salient pole field. The design process of the prototype generator is presented with a focus on the electromagnetic and mechanical finite element method (FEM) analysis. The measurements of prototype and commercial BSG were conducted for the nominal speed of 8 krpm. The advantages and disadvantages of the proposed solution were established based on measurements in load and no-load conditions.
Highlights
Modern commercial planes are designed according to the concept of more electric aircraft (MEA) [1,2,3,4,5,6,7]
This concept states that the electric power system in future aircraft should replace pneumatic and hydraulic systems supplied from main turbofan engines
Due to a lack of information about the materials used in the commercial generator, the finite element method (FEM) simulations were verified using measurement data
Summary
Modern commercial planes are designed according to the concept of more electric aircraft (MEA) [1,2,3,4,5,6,7]. This concept states that the electric power system in future aircraft should replace pneumatic and hydraulic systems supplied from main turbofan engines. The high increase in electric power demand is the main result of such an approach. In turn, requires much more powerful generators to supply it. The increase in power output of the generator should not affect the volume and weight of the generators in a significant way
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