MUMBAI, India, Oct. 31 -- Intellectual Property India has published a patent application (202431033954 A) filed by Bharat Heavy Electricals Limited, Kolkata, West Bengal, on April 29, 2024, for 'a system and a method for starting of high-temperature superconducting (hts) synchronous machines.'
Inventor(s) include V. A. S Muralidhar Bathula; Divya Kumar Sharma; Sadhu Reddy Sekhar Reddy; Mukesh Kumar; S Eswararao; and Tatineni Ramesh.
The application for the patent was published on Oct. 31, under issue no. 44/2025.
According to the abstract released by the Intellectual Property India: "The invention relates to electromagnetic damper(501) for rotor of High Temperature Superconducting (HTS) machine which helps in providing self-start feature to the machine along with maintaining the high degree vacuum in the rotor. The HTS synchronous machine has stator having multi-phase windings placed in non-magnetic teeth based core and rotor having HTS material based pole coils placed in rotating cryostat. A cryocooler operating in a closed loop circuit helps to cool HTS coils to necessary cryogenic temperatures. To minimize convective heat transfer from external room temperature environment to cryostat, a high degree vacuum is required in rotating cryostat. Present electromagnetic damper has damper base in cylindrical form which acts as vacuum sleeve to rotating cryostat. On top of this damper base, required number of uninsulated damper bars(101) are electrically joined with damper short circuited rings on each side to realize a damper cage which is electrically short circuited multi-phase winding."
Disclaimer: Curated by HT Syndication.
