Temperature Rise Influence Law and Temperature Optimization of Motor for the Electromagnetic Suspension Artificial Heart

Hemolysis is an important factor affecting the performance of artificial heart. Excessive temperature can damage red blood cells, thereby reducing blood compatibility. To solve the problem of hemolysis caused by the temperature rise of an electromagnetic suspended artificial heart, the influence of the temperature rise of an electromagnetic suspended artificial heart motor was studied in this paper. The influence of two key factors (stator winding phase resistance and blood pump speed) on the overall temperature rise of the electromagnetic levitation artificial heart was explored. Then, based on the law of temperature rise, the temperature optimization scheme of the motor for electromagnetic levitation artificial heart is proposed. The results show that, the temperature rise of electromagnetic levitation artificial heart can be effectively reduced by properly reducing the stator winding phase resistance and rotating speed.