Reliable protection,communication and control are important features of digital protection solutions for utility substations,and microgrids can be an alternative solution for installing long-distance transmission and distribution lines.In microgrids,there are many intelligent electronic devices available for control and monitoring of the power network.One such device is the phasor measurement unit,a microprocessor-based smart device capable of collecting high-resolution data,checking power quality and recording disturbances.However,there are still some problems,such as interoperability between multiple devices and coordination between individual control systems.In this paper,we design and test the performance of PMUs in a microgrid environment using the IEC 61850-90-5 standard and using the Operational Network Technology software.The results of this study show that PMUs perform well in terms of end-to-end communication and latency throughout the microgrid.