交流励磁型同期機の不平衡突発短絡に関する解析 (第1報)* -線間短絡故障-

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  • コウリュウ レイジガタ ドウキキ ノ フ ヘイコウ トッパツ タンラク ニ カ
  • Analysis of the Unsymmetrical Sudden Short-Circuit of an AC Excited Synchronous Machine （Part 1）?Line-to-Short-Circuit-

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The AC Excited Synchronous Machine (AESM) is a rotating machine which has a three-phase winding in the rotor as well as in the stator and does not have any damper windings. The stator and the rotor are excited by three-phase voltages, with a constant frequency and with a certain slip frequency respectively. AESM rotates synchronously at the rotating speed corresponding to this slip. Therefore, although AESM is equivalent to a Super-Synchronous-Sheribius system structurally, it is evidently different from that system in point of synchronous operation. In this paper, the line-to-line sudden short-circuit of AESM is analyzed. First, the basic differential equations for the line-to-line sudden short-circuit of the secondary winding are derived and their approximate solutions are obtained. Next the solutions for the line-to-line sudden short-circuit of the primary winding are derived from the above solutions by transformation of circuit constants.

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