| Abstract: | In this paper, symmetric structure of induction motor system in stationary αβ0 coordinates is studied by the geometric approach. The results show that the system possesses symmetry (G, ϑ,Φ) and infinitesimal symmetry. Under certain conditions, the system can be transformed into a form possessing state-space symmetry
(G, Φ) and infinitesimal state-space symmetry by means of state feedback and input coordinate base transform. The results can be
extended to the fifth order induction motor system fed by hysteresis-band current-controlled PWM inverter.
Project supported by the Natural Science Foundation of Shanghai (97ZF14044) |
