MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202641074474 A) filed by Dr. R Muthukumar; Mrs. S. Soundaralakshmi; Mr. Muthukumaran M; Dr. K. Dhahagani; Dr. D. Umapathi; and Dr. A. Rajeshkanna on June 16, 2026, for Unified Inverter Control System For Seamless Grid-Connected And Standalone Power Operation.
Inventors include Dr. R Muthukumar; Mrs. S. Soundaralakshmi; Mr. Muthukumaran M; Dr. K. Dhahagani; Dr. D. Umapathi; and Dr. A. Rajeshkanna.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: The present invention discloses a unified inverter control system for seamless grid-connected and standalone power operation. The system includes a direct-current source interface, direct-current link module, power conversion stage, grid interface module, load interface module, unified sensing stage, unified control processor, and gate-driving stage. The unified control processor determines grid-connected, standalone, transition, resynchronization, and fault states based on sensed grid, load, source, and inverter parameters. A common internal voltage-frequency reference enables the inverter to operate as a grid-following unit during grid-connected operation and as a grid-forming unit during standalone operation. A seamless transition controller maintains output continuity during grid failure by isolating the grid and shifting control authority without abrupt reference reconstruction. A resynchronization controller reconnects the inverter after matching voltage, frequency, and phase with the restored grid. Adaptive stability control modifies control parameters according to grid strength and load condition, thereby improving reliability, power continuity, and inverter protection. Accompanied Drawing [FIGS. 1-2]
Disclaimer: Curated by HT Syndication.
