Static Eccentricity Fault Recognition in Three-Phase Line Start Permanent Magnet Synchronous Motor Using Finite Element Method

Figure 7

Normalized PSD spectrum of stator current of LSPMSM. (a) Healthy condition; (b) with 16.6% static eccentricity; (c) with 66% static eccentricity; and (d) with 83% static eccentricity.

(a)

(b)

(c)

(d)