Synchronous Machine Field Current Calculations Using dq-axes Equations Considering Magnetic Saturation.

Magnetic Equivalent Circuit Model of Interior Permanent-Magnet Synchronous Machine Considering Magnetic Saturation

This paper improves an analytical model for interior permanent-magnet synchronous machine (IPMSM) by a magnetic equivalent circuit (MEC) approach. The proposed MEC model consists of three major regions: the stator, the rotor, and the air gap. The conventional reluctance approach is applied to the first two regions. Since the magnetic field in air gap region is supposed to distribute unevenly, t...

Equivalent Circuit Analysis of Interior Permanent Magnet Synchronous Motor Considering Magnetic saturation

Generally, design of the parts of an automobile is restricted by space especially components assembled in the engine room. Therefore traction motor for hybrid electric vehicle is designed by interior permanent magnet synchronous motor (IPMSM). The IPMSM has high power density and efficiency because it generates not only magnetic torque but also reluctance torque. However, IPMSM is difficult to ...

Modeling of synchronous machines with magnetic saturation

This paper deals with a method to derive multiple models of saturated round rotor synchronous machines, based on different selections of statespace variables. By considering the machine currents and fluxes as space vectors, possible d–q models are discussed and adequately numbered. As a result several novel models are found and presented. It is shown that the total number of d–q models for a sy...

Appendix A Magnetic field calculations

Current Imaging using Magnetic Field Sensors

As process technologies of integrated circuits become more complex and the industry moves toward advanced packaging like flip-chip and stacked die, present tools and techniques are having increasing difficulty in meeting failure analysis needs [1]. With gate sizes approaching 65 nm, “killer defects” may only be a few nanometers in size. In some cases, the defects are nonvisible, i.e. there is n...