Investigation of the Effects of Different Magnetization Patterns on the Performance of Series Hybrid Excitation Synchronous Machines

In this paper, the effects of magnetization patterns on the performance of series hybrid excitation synchronous machines (SHESMs) are investigated. SHESMs have three magnetic field sources: armature winding currents, permanent magnets and auxiliary winding current. To initiate the investigation, the magnetic field distributions produced by these three sources are obtained. Using the magnetic field distributions, the machine is analyzed under no-load and on-load conditions. Furthermore, the operational indices, such as inductance, torque, and unbalance magnetic force, are calculated. Various magnetization patterns are considered to investigate their influences on the performance of the machine.