Low computational burden grid voltage sensorless current controller

Abstract

This study proposes a grid voltage sensorless reduced order generalised integrator-based current controller. The proposal takes advantage of the controller structure to avoid the grid voltage measurement, avoiding the need of additional states and requiring only a few multiply and add operations for its computation. This allows one to keep the controller's computational burden to a minimum, making it ideal for low cost digital signal processor implementation. © The Institution of Engineering and Technology 2013.