The phenomenon of saturation of electric machines constitutes an important subject of investigation in electrical engineering. This paper presents a new modeling technique for saturation in the case of induction machines. Necessary calculations to introduce this technique in the linear flux model are presented. Computed results and experimental tests on the transients of the self-excited induct...

This paper deals with the analysis of different PM machines for hybrid electric vehicles application. The main machine parameters, electromagnetic torque and the skewing effect is investigated using ANSYS program. The model parameters of the PM machines are derived with Fixed Permeability Method (FPM). With this method the components of the PM machine can be calculated with high accuracy. Diffe...

In this paper, an attempt has been made to investigate the reflectance of various colours and effects of vary-ing colours on human working and production. Different colours have different reflectance and energy associ-ated with it. Colours play a significant role in the colour scheme of the houses, offices, factories etc. The col-ours may be seen on walls, tabletops, equipment, machines etc. In...

Abstract: The proposed method allows determining the level of wear of the bearings of electric machines by means of rotor radial displacement during operation. Measurement is effected by non-contact method and optoelectronic sensor which converts the rotor mechanical motion into electric signal. Received informational signal is recorded and processed by computer system. Based on the processed i...

Heat exchangers play an important role in the performance of thermal machines, namely, electric power generators, engines and refrigerators. Regarding thermoelectrics, this influence is even higher, owing to the difficulty of transferring heat from the small surface area of a typical thermoelectric module to a bigger one. Particularly, in the hot face of an average 40 mm x 40 mm Peltier module,...

In this paper, electro-magnetic design and thermal analysis of wheel hub motors, incorporated into the hub of a wheel and driven it directly, of electric vehicles were performed by using analytical and CFD methods. Since thermal management impacts the continuous power capability of electric machines, thermal analysis coupled electro-magnetic analysis are needed to reduce size and improve its pe...

1 College of Electric and Information Technology, Hunan University, Changsha, Hunan 410082, China, [email protected] 2 Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, Oshawa, Ontario, Canada L1H 7K4, [email protected] 3 State Key Laboratories of Transducer Technology, Institute of Intelligent Machines, Chinese Academy of Science, Hefei, Anhui 2...

The paper is dealing with some electromagnetic compatibility (EMC) problems of converters and inverters, which are utilized for feeding of electric machines and its analyzing by PSPICE program. The main attention is focused on implications of parasitic capacitance and capacitive coupling existence.

Robotics and automation engrosses designing and implementation of prodigious machines which has the potential to do work too tedious, too precise, and too dangerous for human to perform. It also pushes the boundary on the level of intelligence and competence for many forms of autonomous, semiautonomous and tele-operated machines. Intelligent machines have assorted applications in medicine, defe...

In this paper three models derived using Machine Learning techniques (Support Vector Machines, Decision Trees and Shadow Clustering) are compared for approximating the reliability of real complex networks, such as for water supply, electric power or gas distribution systems or telephone systems, using different reliability criteria.