Development and Research of Coreless Micro Electric Drive Model of RC Drone

Abstract

The using of coreless micromotor in various fields of technology, in particular in unmanned RC drones and the expansion of their scope of application, are considered. The requirements for RC drones during the design process which determines the using of coreless micromotor were considered. On the basis of the algorithm developed by the authors, experimental studies of the 816 series coreless micromotor, which is most widely used in unmanned RC drones are carried out. These studies made it possible to obtain all the parameters for the development of a high-precision model of the coreless micromotor and the micro-drive of an unmanned RC drone in MATLAB Simulink. On the basis of the obtained experimental results, a high-precision model of the coreless micromotor was created in MATLAB Simulink, and transition processes of speed and current on the model were obtained. The error of the determined current on the model is 4.3 % compared to the experiment. The error of the specified speed on the model is 16% compared to the technical characteristics given in the micromotor datasheet. Experimental studies of the coreless micromotor with an 65 mm RC drone propeller were carried out. Its high-precision model was developed in MATLAB Simulink. The error of the determined current on the developed model is 12.8%, and the speed is 12.2% compared to the experiment.