Operation and control of a microgrid in isolated mode with multiple distributed generation systems

Abstract

In this paper performance study of the microgrid in isolated mode of operation is presented using the real time hardware in loop tool. The droop control and virtual complex impedance concept has been implemented for accurate load sharing among the inverter based DG system in the microgrid. The control strategy for operation of inverters in autonomous mode of operation is given. The implementation detail of the microgrid with voltage source inverter based DG systems is given in this paper. The real time performance verification of the implemented microgrid is presented. The performance results of the microgrid reported in this paper indicate that the DG systems are able to share the load in proportion to their ratings. Also, the results show that the voltage and frequency of the microgrid are maintained without any transients.