Research on Surplus Torque Restrain of Electrical Load Simulator Based on Compound Control

The purpose of this paper is to solve the problem that the loading accuracy is affected by the surplus torque of electrical load simulator. The structure and working principle of electrical load simulator are introduced in this paper. Then a mathematical model of the electrical load simulator is established, and the cause of surplus torque is analyzed. We propose a compound control algorithm of restraining surplus torque. The results of the simulation indicate that the compound control algorithm can effectively restrain the surplus torque of the electric load simulator, reduce the interference that is caused by the surplus torque, and improve the control accuracy of electrical load simulator.