Improved Performance Of Micro Grid By Resistive Type SFCL with PMSM

Abstract

This paper tests and analyzes the working capability of a resistive superconducting fault current limiter (SFCL) in a micro grid. The micro grid is a test-bed, consisting of a conventional power plant, two renewable energy sources in the form of wind-farm and solar-farm as two distributed generation (DG) units and five loads (i.e., industrial and domestic). Utilization of DG in mainstream is increasing and hence, various consequences that arise from DG penetration are to be considered accordingly. It is observed that DG penetration in existing distribution alters the fault current during a grid disturbance and hence imbalances the system. Based on this, the research work focuses on contribution of fault current from renewable energy sources in a micro grid, and how resistive SFCL offers positive result in minimizing the fault levels. Permanent magnet synchronous motors (PMSM) are typically used for high-performance and high-efficiency motor drives. High-performance motor control is characterized by smooth rotation over the entire speed range of the motor, full torque control at zero speed, and fast acceleration and deceleration. To achieve such control, vector control techniques are used for PM synchronous motors. The analysis of improved performance of resistive SFCL applied in PMSM driveThe proposed concept can be implemented to resistive type SFCL applied to PMSM drive using MATLAB / SIMULINK software.