Microprocessor implementation of a state feedback control strategy for a current source inverter-FED induction motor drive

The realisation of a microprocessor-based controller which implements a complete state feedback control strategy for a current source inverter-fed induction motor drive is reported. The controller design is based on the application of pole assignment technique of the multivariable system regulation theory to a d-q axes state-space linearised model of the drive and includes a reduced order observer to achieve fast regulation and stability. The hardware and software implementation of the controller around an 8085-based microprocessor kit is discussed and typical test results are presented along with the digital simulation results to show its performance.