Analysis of a Self-Regulated, Self-Excited, Brushless Three-Phase Synchronous Generator, which Includes the Effect of Core Losses

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  • 鉄損を考慮した自己調節形ブラシレス自励三相同期発電機の解析
  • テッソン オ コウリョ シタ ジコ チョウセツガタ ブラシレスジレイ 3ソウ ドウキ ハツデンキ ノ カイセキ

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Abstract

This paper presents a novel analysis of a self-regulated, self-excited, brushless three-phase synchronous generator, which includes the effect of core losses. The core losses are modeled by equivalent core loss resistances connected to additional windings on the generator's magnetic coupling model. A magnetic circuit is drawn from the magnetic coupling model, and an electrical equivalent circuit of the generator is derived by utilizing a duality between the magnetic and electric circuits. Using this equivalent circuit, the generator's steady-state performance is theoretically predicted, and the results are verified through experiment. In addition, the power losses during power generation are analyzed quantitatively. The proposed analysis takes into account of the nonlinearity of the exciting impedances due to magnetic saturation.

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