Research of fuzzy adaptive vector control of asynchronous motor based on DSP

The paper presents a dual closed-loop vector control system based on DSP for asynchronous motor which is a multi-variables, nonlinear, strong coupling and time-varying system and is difficult to determine precise mathematical model because of changes in motor parameters and load fluctuations in factors. Speed controller uses a parameters self-adjusting fuzzy controller and flux observer uses an improved combining methods of voltage model and current model. Simulation results illustrate that the system obtains satisfactory results in the dynamic response, anti-interference ability and robustness.