MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202641122482 A) filed by Dr Rvr Nri Institute Of Technology Deemed To Be University; Dr G Ravi Kumar; Dr N Sambasiva Rao; Dr R Raghunadha Sastry; Mr K Venkata Kishore; Mrs. S. Bhavani; Mr. B. Eedukondalu; Mr. G. Devanand; and Mr. P. R. Chandra Sekhar on October 13, 2026, for A Transient Current Based Double Line Transmission System Protection Using Fuzzy-Wavelet Approach In The Presence Of Upfc.
Inventors include Dr Rvr Nri Institute Of Technology Deemed To Be University; Dr G Ravi Kumar; Dr N Sambasiva Rao; Dr R Raghunadha Sastry; Mr K Venkata Kishore; Mrs. S. Bhavani; Mr. B. Eedukondalu; Mr. G. Devanand; and Mr. P. R. Chandra Sekhar.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: This paper presents a wavelet fuzzy based protection scheme for a double line transmission system with unified power flow controller. The protection scheme makes use of current signals at both the ends of transmission line which are synchronized with the help of global position system clock. A wavelet based multiresolution analysis is used to find the detailed coefficients of these signals which are utilized to calculate fault index. These fault indexes are compared with a threshold value to detect and classify faults on transmission system. The approximate decomposition of the current signals is utilized to locate the fault using Fuzzy logic from their respective terminals. The proposed algorithm has been tested successfully for various faults at different locations.
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