MUMBAI, India, Nov. 21 -- Intellectual Property India has published a patent application (202511084929 A) filed by Ornate Agencies Pvt. Ltd., New Delhi, on Sept. 8, for 'coupled inductor based lcl filter arrangement for single-phase grid-tied inverter with enhanced harmonic suppression.'
Inventor(s) include Bhattacharya, Mr. Arghyadip; Goel, Mr. Aditya; Bhattacharya, Mr. Bidyut; Agarwal, Ms. Ritika; Gullapalli, Mr. Krishna; Kumar, Mr. Pravesh; Rai, Ms. Kanchan Bala; Trivedi, Ms. Akanshi; Debnath, Mr. Arindam; Kumar, Mr. Ankit; and Yadav, Mr. Akash.
The application for the patent was published on Nov. 21, under issue no. 47/2025.
According to the abstract released by the Intellectual Property India: "Embodiments herein disclose a method (1000) and a single-phase grid-tied inverter system (100). The said arrangement comprises a pair of H-bridge side inductors including a first inductor on the line side and a second inductor on the neutral side, both wound on a common toroidal core. The winding orientation is configured to generate additive flux densities when differential-mode current flows through them. A film capacitor is connected between the common node of the inductors and the grid connection point to suppress high frequency harmonics. A pair of grid-side inductors, arranged similarly on a common core, provides equivalent differential mode filtering on the grid side. A damping resistor is connected in series with the capacitor to control high frequency oscillations and multiple bleeder resistors are employed across the capacitor to discharge stored energy in idle conditions."
Disclaimer: Curated by HT Syndication.
