Flux switching alternators for small wind generation

Wind energy conversion systems (WECS) have developed rapidly in recent years in terms of capacity and wind turbines design. This development led to improve power quality, to reduce the costs and increase the energy yield. WECS are expected to be reliable, effective and more cost-competitive. A comprehensive analysis and review on electrical machines in WECS (viz., wind turbine generators) has been presented in this paper. Design, (dis) advantages, and market penetration of different wind turbine generators are analyzed and discussed. Some comparisons have been made on the permanent-magnet (PM) synchronous machines, promising generator for future wind turbines, especially offshore wind turbines.

Section: Doubly Salient Pm Generator (Dspmg)mentioning

confidence: 99%

A Comprehensive Analysis and Review on Electrical Machines in Wind Energy Conversion Systems

Aguemon

Agbokpanzo²,

Dubas

et al. 2020

AEF

“…Flux switching machines have a number of properties that allow them to be used for converting mechanical energy into electrical energy in devices where the armature winding with a fixed permanent magnet can be located radially or axially relative to the movable magnetic flux switch [10]- [12]. In this case, a mechanical drive can perform rotational or cyclic movement relative to the stationary part and, in the view of the authors, could be used as an alternator for bicycles.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Flux Switching Type Permanent Magnet Generator for Bicycles: Modelling and an Experimental Study

Koņuhova

Latvian Journal of Physics and Technical Sciences

et al. 2022

The article introduces two new designs of flux switching permanent magnet alternators with a radial and an axial arrangement of the inductor relative to the magnetic flux switch. The study presents the results of 3D magnetic flux modelling along with the outcomes of physical experiments. In the course of laboratory experiments, the results of theoretical estimations are compared with actual physical performance parameters. The results are presented in the form of power and output voltage curves in relation to the frequency and load current. The study proposes the practical application of the alternators based on the magnetic flux switching principle in the development of a bicycle generator. Laboratory test models are made of a laminated steel using a waste-free technology.

“…This type of machines has been first considered by Rauch and Johnson [5], and can be viewed as an evolution of an inductor generator. The articles [6]- [9] present the results of studies of magnetic flux switching machines by a number of authors.…”

Section: Introductionmentioning

confidence: 99%

Axial Flux Switching Permanent Magnet Alternator with External Magnetic Cores

Koņuhova

Latvian Journal of Physics and Technical Sciences

et al. 2022

The article introduces the results of studying the magnetic field distribution in the alternator inductor with an axial arrangement of open magnetic cores (OMC) and external closure of magnetic fluxes. The study compares the efficiency of using magnetic fluxes from permanent magnets (PM) on the example of two model variants of inductors with OMC developed by the authors. The analysis of the density distribution of magnetic fluxes in OMC was carried out by 3D modelling of the magnetic field using EMWorks software. It has been shown that such generators can be manufactured using a waste-free technology for strip of OMC. This technology significantly reduces the production costs of OMC. By modelling the distribution of magnetic fluxes in the OMC of the inductor, the results of experimental studies and analysis of the created device show that the capacity of generator can be varied by changing its dimensions and the number of the toggle switches on the rotor. This allows the alternator to be adapted to the load requirements – power banks and bicycle electronics.