فاصله يابي خطا در خطوط انتقال قدرت با در نظر گرفتن اثر تغييرات متغيرهاي خط انتقال با فركانس

FAULT LOCATION IN POWER TRANSMISSION LINES (FREQUENCY DEPENDENT LINE PARAMETERS MODEL)

In this paper, a new fault location algorithm in long power transmission lines is introduced. Frequency dependent line model is used as a basis for algorithm development. The suggested technique only takes advantage of post fault voltage and current samples taken at one end of the line and does not require filtering of dc offset and high-frequency components of the recorded signals, which are present during transient conditions. The idea behined the introduced algorithm is that it considers fault location as an optimization problem that can be solved by an appropriate mathematical method. Computer simulations demonstrate the accuracy of the proposed method.