Advanced deep flux weakening operation control strategies for IPMSM

This paper proposes an advanced flux-weakening control method to enlarge the speed range of interior permanent magnet synchronous motor (IPMSM). In deep flux weakening (FW) region, linkage decreases as increases, increasing instability. Classic methods will be unstable when operating in this area changing load torque or reference is required. The a hybrid eliminate instability caused by voltage limit violation and improve velocity-tracking efficiency combining two classic methods. Besides, effective zone IPMSM FW analyzed applied enhance stability following velocity. Simulation results demonstrate strength effectiveness proposed method.