Title :
Design of permanent magnets to avoid chaos in PM synchronous machines
Author :
Gao, Y. ; Chau, K.T.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, China
Abstract :
This paper analyzes the effect of permanent magnets (PMs) on the occurrence of chaos in PM synchronous machines (PMSMs). Based on the newly derived nonlinear system equation, the bifurcation analysis shows that the sizing of PMs significantly determines the stability of PMSMs. Hopf bifurcation and chaos may even occur in the PMSMs if the PMs are not properly sized. Experimental results of two practical PMSMs are provided to support the theoretical analysis.
Keywords :
bifurcation; permanent magnet machines; synchronous machines; Hopf bifurcation; bifurcation analysis; chaos; nonlinear system equation; permanent magnets; permanent magnets synchronous machines; Bifurcation; Chaos; Eigenvalues and eigenfunctions; Equations; Magnetic analysis; Nonlinear systems; Permanent magnets; Stators; Synchronous machines; Torque;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.816718
