On&Off-Grid Hybrid Microgrid Design and Dynamic Analysis

Abstract

In the last years, electrical energy generation from distributed generation with small scale has increased drastically. Microgrid is among the basic components in the distributed generation systems. A hybrid microgrid including solar and diesel generator is designed for this study, which can be operated as on-grid or off-grid mode. This microgrid model provides bidirectional power flow in on-grid mode, however off-grid mode it could control voltage stability and load balancing with diesel generator and controllable loads. To show this features of microgrid, the dynamic analyses have been performed according to the different grid conditions.