CH 4 AC Generator Pg215.

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1 CH 4 AC Generator Pg215

2 AC Generator 1. 交流發電機原理 2. 交流發電機相位原理 3. 交流發電機磁場控制 4. 交流電機頻率與轉速 5. 損失
5. 損失 6. 電壓調整率

3 DC machine basics X South pole North pole X X X Force Angular velocity
Zero Force

4 AC Generator

5 Phasor 相量 phasor

6 Sin

7 AC Machinery Fundamentals
Frequency:

8 A Simple Rotation Loop Fig.4-1

9 Tangential velocity v:
The voltage is a sinusoid magnitude .

10 The Torque Induce in a Current-Carrying Loop

11 4.2 Rotating Magnetic Field
Fig.4-8

12 Rotating Magnetic Field

13 Frequency & Rotational Speed

14 Frequency & Rotational Speed

15 4.7 Losses 1. Copper Losses: 2. Core losses a. hysteresis loss
b. eddy current loss 3.Mechanical Losses 4.Stray Losses (Miscellaneous Losses )

16 Losses Generator Motor

17 4.8 Voltage Regulation

18 Speed Regulation