Methods of new technological developments of electric motors based on soft magnetic materials

Abstract

Application conditions of composite materials based on ASC100.29 iron powders with an oxide coating in electrical machine devices as a stator with improved performance are considered in the article. The conditions for increasing the stability of the operation of electric motors are determined based on changes in the thickness of the oxide layer. Three-dimensional models of magnetic circuits were used, which made it possible to achieve a force of up to 4500 N with a torque of 3 to 8 Nm, which made it possible to obtain an engine power of 100-200 W. As a result, experimental characteristics of dependences μ=f(h), H=f(h)) and the power of specific losses on the thickness of the oxide coating ωyд=f(h) were obtained. Methods for measuring the dynamic characteristics of the stator magnetic circuit are determined.

Research of energy-saving composite materials for electric motors

“…The study of losses during magnetization reversal of samples of magnetic circuits showed that hysteresis losses are 25-30% higher for samples based on powders sprayed with air compared to losses for magnetic circuits based on powders sprayed with water (Figure 4) [7,9]. On the whole, comparative studies have shown a certain advantage in the value of magnetization reversal losses of purer iron powders obtained by the water spray method in comparison with powders sprayed with air [3,5,8]. The main parameter that determines the possibility of using products in electrical devices is the magnitude of electromagnetic losses at different frequencies [5,[8][9][10][11][12][13][14][15][16][17][18][19][20].…”

“…On the whole, comparative studies have shown a certain advantage in the value of magnetization reversal losses of purer iron powders obtained by the water spray method in comparison with powders sprayed with air [3,5,8]. The main parameter that determines the possibility of using products in electrical devices is the magnitude of electromagnetic losses at different frequencies [5,[8][9][10][11][12][13][14][15][16][17][18][19][20]. The results of preliminary studies of losses from the magnitude of induction are shown in Figure 5.…”

“…The technology for manufacturing experimental samples of magnetic cores based on isolated powders of magnetic materials is a multi-stage process [5,8].…”

“…In any technical applications, certain properties of solids are used: electrical, magnetic, optical, thermal, mechanical, corrosion-resistant, etc. The production of magnetic materials with low energy losses during magnetization reversal is one of the urgent problems of industry today [1,5,8]. Despite the fact that research and development of such materials have been carried out since the beginning of the last century, the study of the mechanism of magnetization reversal and improvement of the quality of these materials is still relevant today.…”

Cumulative generation of electricity from the wind of passing vehicles and natural wind in the Bukhara region of the Republic of Uzbekistan

“…It is proposed to use the Chinese wind generator Axies Wind SR -600/800 as a wind turbine. The efficiency of such wind generators is very high [14][15][16][17][18][19][20].…”