The magnetomotive force in a reluctance generator with reluctance deepened by permanent magnets

摘要

The paper presents an analysis of electromagnetic excitation Θ{sub}E in the typical magnetic circuit of a brushless synchronous reluctance generator of the power ~ 3.5 kVA with reluctance deepened with the help of the appropriately directed permanent magnets magnetomotive force Θ{sub}m. It discusses the magnetization conditions on the basis of characteristics of the ampere turns and the MMF, and the circuits, in which they function. The principle of creating the operating flux φ{sub}δ = f(Θ{sub}E) is given from the point of view as for reluctance machines. The extreme operation conditions for the applied permanent magnets are determined with the help of small slip method in the function of magnetic circuit saturation. Next, on the basis of the balanced flows and fluxes on the characteristic magnetization directions the required MMF Θ'{sub}(1-2) and the real values of these fluxes at load are determined.