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Study of Fast Synchronous-Reclosing Method for Parallel AC Line Fault in AC/DC Poer Transmission System

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5 Author(s)
H. Doi ; Kansai Electric Power Co., Inc. ; Y. Mizukami ; K. Katsuki ; T. Shimomura
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In the AC/DC parallel system, AC power system is separated into two areas by the parallel AC line trip. As a result, it is necessary to recover from asynchronous operation. A method to close tripped AC line, "Fast synchronous-reclosing method", is proposed here. This paper consists of two parts: (1) Calculation of the frequency difference limit between the two areas. Energy function is formulated on the condition that fast synchronous-reclosing can be completed satisfactorily. (2) Confirmation of the performance of the fast synchronous-reclosing method in the AC/DC parallel line and frequency control before synchronous-reclosing and damping control of the power swing after reclosing, which were studied using an AC/DC simulator.

Published in:

IEEE Transactions on Power Apparatus and Systems  (Volume:PAS-103 ,  Issue: 6 )