Research on Compound Control Method of Loading Torque of Electric Load Simulator

This paper takes the Linear Electric Load Simulator (LELS) as the research object. Through analyzing the composition and working principle of the LELS, the paper respectively analysis torque simulation loading system and the measured actuation system, then establishes mathematical model under the motion interference of the tested system. This paper analysis the generation mechanism of the excess force of the simulation system, and discusses the way of inhibit excess force preliminarily based on this mathematical model. These simulation systems are modeled and simulated by the SIMULINK and the feasibility of the control method under constant input and step state is verified. Finally, the LabVIEW is used to perform experiments to verify the correctness of the simulation. The results show that the compound control method has good performance and can meet the engineering requirements.