Analysis of High Temperature Motors With Micro-Arc Oxidation Ceramic Insulated Wire

The use of organic insulation in the motor has insulation temperature limitations, which limit its usage and further increase its power density. In response to this issue, this paper proposes a high-temperature resistant motor with the micro-arc oxidation ceramic insulated wire, of which the long-term service temperature is able to exceed 350 °C. Firstly, the generation conditions, formation principles, structural characteristics and electrical characteristics of micro-arc oxidation ceramic insulated wires were introduced. Secondly, the high temperature motor base on micro-arc oxidation ceramic insulated wires is proposed, and the temperature analysis is presented, the influence of motor load on temperature rise was studied. Then, the manufacturing process and insulation method of the motor were introduced. Finally, the high-temperature motor prototype was made, and the high-temperature resistance performance of the high-temperature motor prototype was tested, and the temperature distribution of the motor under different load conditions was verified.