Velocity-current Double Close-loop Control Model and Simulation of BLDCM in Pure Electric Vehicle Applications

摘要

Since only considering the internal parameters of motors, conventional control models of brushless DC motors (BLDCM) have some shortcoming in smoothing the velocity of pure electric vehicles (PEV). To achieve a better controlling capability, a velocity-current double close-loop control model for BLDCM of PEV is constructed on Matlab. In this model, the inner current loop is devised for quickly adjusting BLDCM's actions, whereas the outer velocity loop is for an optimized control of PEV's speed. The results of a simulation show that the new model here has a good performance and a strong anti-disturbance ability, therefore is applicable for designing and debugging of BLDCM in PEV applications.