The paper describes winding failures in Permanent Magnet Synchronous Motor (PMSM) which are preferred Electric Vehicles. Drive can be designed with fault tolerance to continue operate under occurrence of faults. Winding insulation failure is responsible for some the most serious A method detecting open circuit winding, short or turn may result as a presented. Further technique continued post-fa...

In recent years, the manufacturing of stators by hairpin technology has proven its ability to fulfill requirements on quality, productivity and robustness traction drive applications in automotive industry. However, uncertainty necessity rapid product development despite fuzzy target systems still cause that processes, machines equipment – as well electric design are often an imperfect prototyp...

In the above article [1] , original title “Partial Discharge Investigation of Form-Wound Electric Machine Winding for Aircraft Propulsion” is wrong and should be “Partial-Discharge-Free Insulation Design Air-Core Permanent Magnet Synchronous Propulsion.”

Overvoltage distribution along the transformer winding must be uniform to certify the safety of the operation of the power transformer. Influence of the parameters variation on the impulse voltage distribution (IVD) in disk winding transformer is going to be analyzed which hasn’t been analyzed on this type of winding in the previous papers. In this research, a transformer with disk winding and ...

Power system overvoltages due to switching, lightning and other disturbances are the main problem for designers of the power transformers. Once some frequencies of the incoming surges match with some of the natural frequencies of transformer winding, the resonance phenomenon is expected in transformer winding. The resonant overvoltages may destroy the insulation between turns and cause to insul...

Accurate computing of the saturated inductances of Permanent Magnet Synchronous Machine (PMSM) is very important during the design process. In this paper, a new method is presented based on the B-H characteristic of the stator material and unsaturated inductances formulations. This method is used to calculate the saturated inductances of the axial flux PMSM. The synchronous inductance and all o...

In this paper, we present the use of a solid bar winding for permanent magnet synchronous motor dedicated to electric drive full boat. For winding, chose cylindrical bars vehicle motorizations power lower than 10 kW. The choice 60 VDC low-voltage distribution requires resorting with one per slot (single turn). Hence, conductors dissipate additional copper losses (higher AC resistance). An analy...

Electrical motors drive a variety of loads in today’s world. Almost every industrial process relies on some kind of electrical motors and generators. There exist billions electric motors used in different applications all over the world. Majority of them are small fractional HP motors use in household appliances. However, they used about 5% of the electricity used by the motors. Three phase mot...

This article describes a practical method for predicting the distribution of electric potential inside an electrical machine’s winding based on design data. It broadens understanding impedance in terms inter-winding behavior and allows to properly insulation system during development phase. The predictions are made frequency-dependent equivalent circuit machine which is validated by measurement...