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Int Trans Electr Energ Syst. 2019;29:e2764. https://doi.org/10.1002/etep.2764 Summary This paper presents a new analytical technique for modelling the impact of static eccentricity (SE), dynamic eccentricity (DE), and mixed eccentricity (ME) faults on electromotive force (EMF) or Back‐EMF, output voltages and currents of surface‐mounted permanent‐magnet (SMPM) machines. This model is based on the combination of the complex relative permeance and the eccentricity relative air‐gap permeance. It presents explicit formulas for no‐load and on‐load, field distribution, magnetic flux, EMF/Back‐EMF, and output voltages and currents of SMPM for different types of eccentricity fault. Furthermore, a new eccentricity model is presented and applied, which can cover more eccentricity fault types; some of them have not been so far considered in the literatures. Analytical results are validated by time‐stepping finite element method results. The analytical and numerical results refer to the fact that the SE does not cause any new frequency component in the EMF/Back‐EMF and currents spectra. However, the same is true in the case of DE and ME faults where some frequency components appear in the EMF/Back‐EMF and currents spectra, not only around the fundamental harmonic but also around some other harmonics.