| Abstract |
A voltage source inverter fed induction motor drive is presented for which a completely digital current, speed and position control has been developped and irnplemented on a floating point signal processor based controller. Good torque and flux control decoupling is achieved through field oriented vector control. By choosing the controller sampling rate equal to the inverter commutation frequency, good dynamic performance of the drive is realized and discretization of continuous designed state feedback controllers is simplified. Special attention is paid to inner variable limitation (speed, torque and inverter command voltages) and to compensation of the nonlinear inverter load characteristic. |
