KichTuDocLap (6).pdf

# KichTuDocLap (6).pdf - Đồ án điện tử công suất...

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Đồ án đ i n t công su t 5 2.4 Ph ươ ng trình đặ c tính c ơ c a độ ng c ơ đ i n m t chi u kích t độ c l p : Để thành l p ph ươ ng trình đặ c tính c ơ ta xu t phát t ph ươ ng trình cân b ng đ i n áp c a độ ng c ơ : U ư = E ư + (R ư +R f ). I ư = E ư + R. I ư (1) Trong đ ó : U ư : đ i n áp ph n ng ( V ) E ư : S c đ i n độ ng ph n ng (V) R ư : Đ i n tr c a m ch ph n ng R f : Đ i n tr ph c a m ch ph n ng I ư : Dòng đ i n m ch ph n ng V i R ư = r ư + r cf + r b + r ct r ư : Đ i n tr cu n dây ph n ng r
• Spring '16
• Stephanie Moore

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