scholarly journals Genetic Algorithm–Based Optimal PWM in High Power Synchronous Machines and Regulation of Observed Modulation Error

10.5772/9124 ◽  
2010 ◽  
Author(s):  
Alireza Rezazade ◽  
Arash Sayyah ◽  
Mitra Aflaki
Keyword(s):  
Genetic Algorithm ◽  
High Power ◽  
Synchronous Machines

The Use of Concentrated Windings for High-Power Synchronous Wind Generators

2021 ◽  
Vol 4 (4) ◽  
pp. 50-57
Author(s):  
Viktor N. ANTIPOV ◽  
◽  
Andrey D. GROZOV ◽  
Anna V. IVANOVA ◽  
◽  
...  
Keyword(s):  
Low Power ◽  
High Power ◽  
Synchronous Machines ◽  
Cogging Torque ◽  
Application Field ◽  
Main Application ◽  
Wind Generators ◽  
Winding Factor

Low-power machines were commonly considered as the main application field of concentrated windings. However, a lot of paper have recently been published, which address both the theory of these windings and specific cases of their application for large synchronous machines. The article presents an analysis of the parameters of concentrated windings having various configurations intended for use in high-power gear and gearless wind generators. In assessing the winding, not only the high winding factor value was taken into account, but also the star of slot EMFs, harmonic spectra of the MMFs and EMFs, the cogging torque component and torque pulsation under load, as well as emerging losses. It is shown that the well-known advantages of concentrated windings over distributed windings can be fully realized by choosing the appropriated numbers of slots and poles.

scholarly journals Genetic algorithm based optimization of pulse profile for MOPA based high power fiber lasers

2015 ◽  
Author(s):  
Jiawei Zhang ◽  
Ming Tang ◽  
Jun Shi ◽  
Songnian Fu ◽  
Lihua Li ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
High Power ◽  
Fiber Lasers ◽  
Pulse Profile

scholarly journals Ferrites and Different Winding Types in Permanent Magnet Synchronous Motor

2012 ◽  
Vol 63 (3) ◽  
pp. 162-170 ◽  
Author(s):  
Peter Sekerák ◽  
Valéria Hrabovcová ◽  
Juha Pyrhönen ◽  
Lukáš Kalamen ◽  
Pavol Rafajdus ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
High Power ◽  
Low Cost ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Synchronous Machines ◽  
Stator Winding ◽  
Permanent Magnet Synchronous Machines ◽  
The Third ◽  
Slot Opening

Ferrites and Different Winding Types in Permanent Magnet Synchronous MotorThis paper deals with design of permanent magnet synchronous machines with ferrites. The ferrites became popular due to their low cost and cost increasing of NdFeB. The progress in ferrite properties in the last decade allows the use of ferrites in high power applications. Three models of ferrite motors are presented. It is shown that also the type of stator winding and the shape of the slot opening have an important effect on the PMSM properties. The first motor has a distributed winding, the second motor has concentrated, non-overlapping winding and open stator slots. The third motor has a concentrated non-overlapping winding and semi - open slots. All models are designed for the same output power and they do not have the same dimensions. The paper shows how important the design of an electric machine is for excellent motor properties or better to say how the motor properties can be improved by an appropriate design.

Probabilistic and statistical methods for studying transient high-power synchronous machines

2010 ◽  
Vol 81 (8) ◽  
pp. 420-426 ◽  
Author(s):  
A. I. Sudakov ◽  
E. A. Chabanov ◽  
N. V. Shulakov
Keyword(s):  
Statistical Methods ◽  
High Power ◽  
Synchronous Machines

Optimized Design for Cockpit Protective Glass Construction against High Power Microwave Using Genetic Algorithm

2011 ◽  
Vol 403-408 ◽  
pp. 3777-3783
Author(s):  
Jun Huang ◽  
Yan Jin ◽  
Yun An Hu ◽  
Hao Ran Zhang
Keyword(s):  
Genetic Algorithm ◽  
High Power ◽  
Transmission Rate ◽  
Incident Field ◽  
Optimized Design ◽  
Protective Efficiency ◽  
High Power Microwave ◽  
Pilot Model ◽  
Electromagnetic Transmission ◽  
Power Microwave

According to main challenges to aircraft protection against high power microwave (HPM), the formula of electromagnetic transmission rate and reflectivity both for the perpendicularly and parallely polarized incident field are modified and simplified, a shielded cockpit glass construction is designed by a new optimized method on genetic algorithm, and protective efficiency analysis on military aircraft’s cockpit against HPM is carried out on a virtual 3D plane, airborne equipments and pilot model with a scale of 1:1. The verification simulation tests show the optimized construction has good protective efficiency in the range of carrier frequencies between 1-20 GHz, and protective intensity does not exceed limits of relevant international standard.

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