This paper gives an overview of nowadays used simulation models and measurement methods in order to determine iron losses in electrical machinery. The paper provides machine designers and system engineers with an overview of suitable iron loss models applicable for the machine design process and simulations. Furthermore, possible methods for iron loss measurements in electrical machines are pre...

In order to design correctly an electrical machine it is necessary that the machine cooling to be efficient and to know the values and the temperature distribution in this (in the rotor). To determine the temperature distribution, a thermal equivalent circuit is used for the heat transfer of machine. The thermal equivalent circuit is analogous to electric circuit, in which heat is generated by ...

a method based on electrical capacitance tomography (ect) and an improved least squares support vector machine (ls-svm) is proposed for void fraction measurement of oil-gas two-phase flow. in the modeling stage, to solve the two problems in ls-svm, pruning skills are employed to make ls-svm sparse and robust; then the real-coded genetic algorithm is introduced to solve the difficult problem of ...

Modern energy demands led the scientific community to renewable energy sources, such as ocean wave energy. The present work describes a model for a cost efficient rotary electrical generator, optimized for ocean wave energy conversion. The electrical power, supplied by low speed mechanical movement, requires the use of electrical machinery capable of generating high amounts of torque. Among the...

Machine Learning) Machine Learning with Dirichlet and Beta Process Priors: Theory and Applications by John Paisley Department of Electrical & Computer Engineering Duke University

ArcelorMittal is a key supplier for electrical steels in challenging applications such as high power density automotive traction machines and high speed induction machines for industry and power generation systems. Throughout the years we have focused on understanding the specific needs of each electrical machine type and aimed at developing electrical steels to optimally meet these machine dem...

One important factor in the design process and optimization of electrical machines and drives are iron losses in the core. By using new composite materials and low-loss electrical SiFe steels, the losses in the magnetic ux conducting parts of the machine can be reduced signi cantly. However, it is necessary to have accurate but also easy implementable iron loss models to take the loss e ects in...