Field-oriented control of induction motors using DSP

Because of the complexity of mathematical models of induction motors, the dynamic behaviour of ordinary algorithms is poor. The field-oriented control method has numerous advantages, but requires high computing power. However, implementation of this method has recently become more justifiable as a result of the decreasing price stemming from the development of power electronic devices and microprocessor techniques. A DSP (TMS320C25) based field-orientation control system with digital current regulation of the induction motor without an external current control loop is proposed. Some aspects of the theory, computer simulations and experimental results of the proposed method are given.<>