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This article presents the results of the magneto-electric machine's research of the wind energy conversion systems' (WECS) alternating current. Calculation of the researched machine was carried out with the latest version of the programs "Elcut 6.2 Professional" complex using. The operation's purpose was creation of the researched object's adequate geometric model, obtaining the machine's...
Permanent-magnet-assisted salient-pole synchronous machines (PMa-SMs) have the ability to increase the terminal voltages as compared with conventional salient-pole synchronous machines. This paper investigates the main cause of the voltage increase under no-load conditions. The rotor and the stator flux components produced by permanent magnets (PMs) in a PMa-SM are computed by linear finite element...
Design problems of permanent magnet (PM) high-speed machines have some peculiarities. The possibilities of increasing the electromagnetic torque are depended on mechanical, electrical and magnetic aspects. Mechanical aspects of designing for some types of high speed PM electrical machines such as PM synchronous machines with a wide range of rotating speed and power rating are specially discussed in...
The aim of this paper is to compare the experimental performances of a new hybrid flux switching synchronous machine built with two types of lamination materials (3% silicon iron steel M330-50 and NO-20). This machine uses the flux switching principle where all the active parts are located on the stator (armature windings and permanent magnets). However DC excitation coils where added in the stator...
A position sensorless control scheme of surface-mounted permanent magnet synchronous machine (SPMSM) using a novel sliding mode observer (SMO) is proposed, suitable for applications where low speed and standstill operations are not required. Compared with traditional SMO, the sign function is replaced by a saturation function, to increase the precision of the rotor position estimation at low speed...
A novel hybrid excitation synchronous machine with asymmetrically stagger permanent magnet (ASHESM) is developed. Its structure and field control principle are described and design equations are derived. Three-dimensional finite element analysis is used to obtain the no-load magnetic field distributions and field control capability under different field currents. A 1-kW prototype machine is designed,...
The aim of this paper is to present the structure of a new flux switching synchronous machine with hybrid excitation. This machine uses the flux switching principle where all the active parts are located on the stator. The rotor is only a salient passive rotor and can be robust and made with a low cost technology. This new machine can be supplied with electricity by means of a traditional three phase...
This project is concerned with non-convectional direct stator winding slot cooling using water. The aim is to find optimal algorithm for control of water cooling. The control algorithms are tested on the experimental device, which is part of real synchronous machine with permanent magnets. The thermal model was built as a base for pump control algorithm model of a machine without thermal sensors....
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