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第 7 章 三相同步电机的建模与特性分析 PowerPoint PPT Presentation


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第 7 章 三相同步电机的建模与特性分析. 各类同步电动机的图片. 内容简介. 三相同步电机的基本运行原理→结构→电磁关系→数学模型(即基本方程式和等效电路和相量图)→功率流程图 →三相同步电动机运行特性(矩角特性与 V 形曲线)的分析与计算。. 8.1 三相同步电机的基本运行原理. A 、三相同步电动机的基本运行原理. 图 8.1a 给出了同步电机的结构示意图和相应的定子空间轴线位置。图中, A-X 、 B-Y 、 C-Z 分别表示等效的定子三相绕组。. 图 8.1 同步电机的结构示意图. 若在同步电动机的定子三相对称绕组中分别通以如下三相对称电流:.

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第 7 章 三相同步电机的建模与特性分析

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7

7


7


7

V


7

8.1

A

8.1aA-XB-YC-Z

8.1


7


7

B

8.2


7

C

8.3abc

8.3


7

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  • (r/min)


7

8.2

A

8-1

8.4

8.4


7

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8-3

8.5

8.5


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8-28.5

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8.7

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b

8.8

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b

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8.3

A

a

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8.14

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