An Effective Controllable Grid Interface for Microgrids

• Date:2025-11-10
• Title of Paper:An Effective Controllable Grid Interface for Microgrids
• Journal:IEEE Transactions on Smart Grid
• Key Words:Active Distribution Network (ADN), Back-toback (B2B), Distributed Energy Resource (DER), grid interface, microgrid
• Summary:The interest in the integration of distributed power generation and microgrids into power grids has significantly increased. In this context, interfacing microgrids with a host grid is of significant relevance, and therefore, in this paper, a cost-effective controllable grid interface for microgrids is proposed, modeled, and studied under various conditions, including smooth and abrupt power fluctuations, faults, and interface tripping. The proposed interface, named Microgrid Connector Controller (MGC), is an adequate and affordable alternative to the existing Back-to-Back (B2B) microgrid-grid interface, at a fraction of its capital costs. Thus, the proposed MGC’s performance is compared a B2B interface through detailed timedomain simulations in a realistic benchmark test system to demonstrate the controller’s capabilities. Compared with B2B, MGC’s direct frequency synchronization and power and voltage control capabilities makes it easier for microgrid operators to satisfy required standards and reduce wear and tear in grid equipment and customer loads. Finally, the MGC’s lower voltage ratings may translate into significantly smaller size and thus easier logistics and lower costs.
• Co-author:Hanwen Gu
• First Author:Behnam Tamimi
• Correspondence Author:Claudio Canizares
• Volume:14
• Issue:2
• Page Number:914-927, IEEE Transactions on Smart Grid
• Translation or Not:No
• Date of Publication:2022-08-31
• Included Journals:SCI

• 1.FINAL VERSION .pdf