MUMBAI, India, May 29 -- Intellectual Property India has published a patent application (202631062886 A) filed by C. V. Raman Global University, Bhubaneswar, Orissa, on May 18, for 'a single-stage multi-port dc-dc power converter with integrated hybrid energy storage and automatic multi-mode control for renewable energy applications.'
Inventor(s) include Dr. Laxmidhar Senapati; Rajat Kumar Samantaray; Dr. Pradyumna Kumar Behera; Dr. Pragnyashree Ray; Rajesh Kumar Lenka; and Mallikarjuna Golla.
The application for the patent was published on May 29, under issue no. 22/2026.
According to the abstract released by the Intellectual Property India: "The present invention discloses a single-stage multi-port DC-DC power converter with integrated hybrid energy storage and automatic multi-mode control for renewable energy applications. The converter interfaces three functional ports in a unified non-isolated topology using only three semiconductor switching devices: a first port connected to a photovoltaic (PV) energy source, a second port coupled to a hybrid energy storage system (HESS) comprising a passive parallel combination of a battery and a supercapacitor, and a third port delivering regulated 48 V DC power to an electric vehicle (EV) charging load. The passive parallel HESS configuration inherently enables dynamic current sharing between the high-energy-density battery and the high-powerdensity supercapacitor without requiring an additional active converter stage, thereby reducing battery peak current stress, extending battery life, and improving transient response. An automatic mode selection (AMS) algorithm, implemented on a digital microcontroller, continuously monitors PV power availability, HESS state-of-charge, and EV demand, and seamlessly transitions among four operating modes: PV-to-HESS-and-EV, PV-and-HESS-to-EV, HESS-to-EV, and PV-to-EV. A drift-free perturb-and-observe MPPT algorithm maximizes PV energy extraction under varying irradiance conditions. The single-stage architecture eliminates multiple cascaded converter stages, reducing component count, switching losses, system volume, and cost. Experimental validation on a laboratory prototype confirms stable steady-state voltage regulation, smooth inter-mode transitions, effective transient suppression by the supercapacitor, and high conversion efficiency across all operating modes. The invention is particularly suited for deployment in renewableenergy- powered smart EV charging stations, DC microgrids, and off-grid electrification systems requiring compact, efficient, and intelligent multi-source energy management."
Disclaimer: Curated by HT Syndication.
