Advanced Autonomous Control of DER Parallel Converters for Microgrid-Slides

Abstract: Microgrid will be one of the major forms of distribution network for future power systems wherever there are abundant distributed energy resources (DER) in local area, to reduce power losses on the transmission lines and improve the reliability of energy supply. This webinar will begin with a discussion about the objective of the control and operation of a microgrid, which is to ensure the system voltage to be within a nominal magnitude/frequency range and adequate output power sharing among all these energy sources. And this is very often required to be realized through autonomous control where each source converter is controlled by its own without getting or sensing any information remotely or from others so that a higher reliability and an easy-to-implement plug-and-play feature could be achieved. The requirement for a fully autonomous grid-organizing framework has been well fulfilled and has made a significant benefit for today's power systems, but will be a really critical challenge for future's more electronic power systems with microgrid being a possible form. The webinar will then illustrate the basic operation principles of autonomous coordinative control of DER parallel converters and how it can be directly adopted in many engineering practices. The state-of-art advanced autonomous control of DER interfacing converters for higher performance in the coordination of bus voltage and power sharing in steady-state will be presented and summarized in more details.