Stability Analysis of a Nanogrid Considering Communication Delay Time

The decommissioning of conventional power plants, the rise of the installation of inverter-based technology for the supply of electrical energy in the distribution network as well as the application of information and communication technologies (ICT) bring new questions to the system stability in power systems. In addition to this, inverter-based technology should be able to provide ancillary services as conventional power plants do, such as active and reactive power provision for frequency and voltage control, respectively. Moreover, nanogrids or households are not only equipped nowadays with inverter-based technology, but also capable of providing these ancillary services. This research work presents a systematic approach for analyzing the stability of a nanogrid considering communication delay time. As noted in this scientific work, the higher the communication delay, the higher is the approximation of the poles to the origin, which influences the stability of the system.