A Universal Hardware-In-Loop Platform for Hybrid AC/DC Microgrids
Abstract:
Isolated hybrid microgrids have been developed to power a remote village/island and reduce the dependency on the existing local/regional grid. The hybrid AC/DC microgrids have gained significant attention due to their flexibility in integrating renewable energy sources and energy storage systems. Most hybrid AC/DC microgrids are designed to operate in both grid-connected and stand-alone modes. The hybrid AC/DC microgrid is generally equipped with distributed energy resources, power electronics devices, and local loads. The experimental platforms to validate new topology and control methods for the hybrid AC/DC microgrids are often expensive. This project aims to develop a universal hardware-in-loop platform to do an experimental study for the proposed hybrid AC/DC microgrids. The significant findings to achieve such objectives are (1) the universal hardware-in-the-loop platform development. (2) A multi-stack vanadium redox flow battery model considering electrolyte transfer delay. (3) Peak power estimation method of vanadium redox flow battery for solar-battery powered electric vehicle charging stations. (4) Microgrid control method based on virtual synchronous machines in islanded mode.