交流励磁型同期機の不平衡突発短絡に関する解析 (第2報)* -一線地絡故障-

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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 2）?One Line-to-Ground Fault-

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The line-to-line fault of AESM was analyzed in the preceding paper. In this paper, analysis of the one line-to-ground fault is presented. As we intend to use the AESM as a driving motor-generator in the flywheel energy storage system, it is necessary to analyze the above single-phase asymmetrical faults (line-to-line and one line-to-ground). First, after brief discussion of the line-to-line fault, the basic differential equations for the one line-to-ground fault of a secondary winding are derived. Next the solutions for that fault are derived from the solutions for the line-to-line fault of a secondary winding by transformation of circuit constants and variables. Furthermore the fault of a primary winding is also analyzed and the solutions are derived from those for the line-to-line fault by the same transformation. Finally the short-circuit torques for the line-to-line fault and one line-to-ground fault are discussed

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