Hierarcical control methods of microgrids

In this thesis, control applications on microgrids and hierarchical control approach applied for microgrid architectures have been investigated based on literature review. Advantages and disadvantages of these control methods have been compared with each other. According to obtained knowledge, a robust controller has been designed and applied for a system that has been modelled with DIgSILENT PowerFactory simulation. Based on simulation results, designed controller has achieved to keep frequency and voltage values of islanded microgrid system within acceptable limits.