Influence of winding configuration on properties of the multichannel permanent magnet brushless generator

In order to enhance operational reliability, modifications to the design of machine windings are necessary. One of the methods of improving machine operational reliability is adapting the windings to accommodate multichannel operation. This paper presents the design and construction of a prototype multi-channel brushless generator with surfacemounted permanent magnets (MCBLPMG SPMs). It also discusses the findings of a research project aimed at examining the impact of different winding configurations on the properties of multichannel operation in the MCBLPMG SPM. The quad-channel solution allows for the implementation of three varying winding configurations. A mathematical model of the three-phase MCBLPMG was developed for the purpose of analysis. The configurations differ in terms of the placement of the individual phases within the channels. A series of numerical tests were conducted on the selected configurations. Furthermore, the results of laboratory tests are presented. The configurations analysed in single-channel operation (SCO) showed no effect on generator efficiency. However, certain configurations may induce asymmetric operation, depending on their design.