LRK Motor Analysis
These notes describes how one might go about analyzing Lucas, Retzbach and Kühfuss (LRK) motors, also known as Split Phase Sector (SPS) motors. These motors are an elegant type of brushless DC motor.
The files included in this example are:
lrk-bldc.mcd: a Mathcad 2001i worksheet for analyzing LRK motors lrk-bldc.pdf: a PDF printout of lrk-bldc.mcd lrk.fem: a finite element model of the geometry considered in lrk-bldc.mcd flux_femm42.lua: a Lua script that runs in FEMM 4.2 that analyzes flux linkage and
cogging torque over a range of rotor angles and saves the results for all rotor
positions to disk.flux.m: a translation of flux.lua script that runs in Octave using the OctaveFEMM package.flux-results.mcd: a Mathcad 2001i worksheet for doing some further analysis
on the results obtained via the flux.lua script flux-results.pdf: a PDF printoutof flux-results.mcdAll files can also be downloaded as a single archive.