MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202541121177 A) filed by Nandha Engineering College, Vaikkaalmedu, Tamil Nadu, on Dec. 3, 2025, for 'pulsation reduction in dynamic wireless charging of electric vehicles using lcc compensation with predictive and fast secondary control.'
Inventor(s) include R. Vijayalakshmi; P. Dharshan Sri; S. Keerthi; N. Sasikala; K. Devika; A. Thirumalai Vel Ganesh; and V. Guruprasad.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a dynamic wireless charging system for electric vehicles, with the ability to provide stable and efficient power transfer while the vehicle is in motion. Conventional dynamic wireless power systems often produce power pulsations due to the fluctuation in magnetic coupling between transmitter and receiver coils when a vehicle crosses multiple charging segments. These fluctuations result in unstable output power, decreased efficiency, and degradation of the vehicle's battery. The present invention overcomes these drawbacks and, accordingly, provides a new hybrid compensation and control technique that combines an LCC compensation network with an intelligent predictive control system and a fast-response secondary controller. This LCC compensating network, in turn comprising a series inductor (L ), series capacitor (C ), and parallel capacitor (C ), is tuned for s s presonance so that the transmitter acts as a constant current source. This setup minimizes the impact of coil misalignment and ensures consistent power transmission. The predictive control unit observes the vehicle's position and coupling variation to predict coil transitions so as to set the inverter parameters in advance and avoid instant voltage or current spikes. Meanwhile, the fast secondary controller at the receiver's DC-DC converter acts instantaneously on small perturbations, smoothing residual output ripples and maintaining a constant DC supply for the EV battery. Simulation and experimental results confirm that the proposed method reduces power pulsation from approximately 10-12% to below 3%, representing a significant improvement in system stability and energy efficiency. The invention offers a compact, scalable, and reliable solution for both stationary and dynamic EV charging, enhancing the safety and efficiency of wireless power delivery in contemporary electric transportation systems."
Disclaimer: Curated by HT Syndication.
