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同步發電機勵磁電流與主磁動勢角度問題

發布日期:2022-10-09 點擊率:20

有關同步發電機勵磁電流與主磁動勢角度問題,勵磁磁動勢和主磁動勢之間的角度,發電機在空載情況下,勵磁磁動勢和主磁動勢之間的角度為零,勵磁磁動勢和主磁動勢之間的角度是不固定的。

同步發電機勵磁電流與主磁動勢角度

1、首先,發電機勵磁電流是產生勵磁磁動勢的,只能說勵磁磁動勢和主磁動勢之間的角度;

2、發電機在空載情況下,勵磁電流產生的勵磁磁動勢就是主磁動勢,勵磁磁動勢和主磁動勢之間的角度為零;

3、發電機帶負載運行時,勵磁電流產生的勵磁磁動勢仍就是主磁動勢,只是這個主磁動勢受到了定子磁動勢的影響。

此時,勵磁磁動勢和主磁動勢之間的角度是不固定的,它與勵磁電流和定子電流之間的相位有關,這個相位取決于發電機的內阻抗和發電機所帶負載的性質。

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