The Research On Direct Torque Control Technology Of Induction Motor Based On DSP

In this paper, we inducted the main motor object of study of direct torque controltechnology, on its unique and novel control ideas, as well as its simple and clear systemarchitecture, good dynamic and static performance advantages in the industrial sector and theacademia have been widely concern. Direct Torque Control is a new high-speed communicationtechnology, therefore, permanent magnet synchronous motor direct torque control system hasbecome a hot research today. Papers on DSP-based permanent magnet synchronous motor directtorque control technology research for the purpose of definitely theoretical guidance andpractical significance.Through access to information a large number of domestic and foreign literatures, anoverview of the permanent magnet synchronous motor, permanent magnet synchronous motorcontrol strategy, permanent magnet synchronous motor direct torque control of the currentsituation of international research in detail. Discussed the structure of permanent magnetsynchronous motor, the three coordinates of the mathematical model and its transformationmethod to realize multi-variable AC motors and their interaction decoupling, will simplify and anequivalent AC motor into a DC motor to analyze. With MATLAB / SIMULINK softwareenvironment carried out under the permanent magnet synchronous motor direct torque controlsystem of systems simulation. TMS320F2812 DSP based on permanent magnet synchronousmotor direct torque control system design software and hardware platform.In this paper, permanent magnet synchronous motor direct torque control system problems,put forward an anti-saturated digital PID controller for permanent magnet synchronous motordirect torque control system of the improvements in research, theory-based qualitative analysiswe can see that the method can reduce the torque and flux of the pulse has a good dynamic andstatic performance, but also to respond faster, the system's performance improved significantly.the permanent magnet synchronous motor direct torque control system theory to guideconstruction of meaning and reference value.