1. Energy Conversion and Transport George G. Karady & Keith Holbert
EEE 360
Energy Conversion and Transport
George G. Karady & Keith Holbert
Chapter 6
Synchronous Machine
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360 Chapter 4 Transmission lines and cables

2. 360 Chapter 4 Transmission lines and cables
Lecture 14
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360 Chapter 4 Transmission lines and cables

3. 360 Chapter 4 Transmission lines and cables
6.1 Construction
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4. 360 Chapter 4 Transmission lines and cables
6.1.1 Round Rotor Generator
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360 Chapter 4 Transmission lines and cables

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Synchronous Machines
Figure View of a two-pole round rotor generator and exciter.
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360 Chapter 4 Transmission lines and cables

6. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Figure Major components of a round rotor two-pole generator
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360 Chapter 4 Transmission lines and cables

7. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Figure 6.3 Cross-section of a large turbo generator. (Courtesy Westinghouse)
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360 Chapter 4 Transmission lines and cables

8. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Figure 6.4 Details of a generator stator.
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360 Chapter 4 Transmission lines and cables

9. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Figure 6.5 Rotor block of a large generator. (Courtesy Westinghouse)
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360 Chapter 4 Transmission lines and cables

10. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Figure 6.6 Generator rotor with conductors placed in the slots.
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360 Chapter 4 Transmission lines and cables

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Synchronous Machines
Figure 6.7 Large generator rotor completely assembled. (Courtesy Westinghouse)
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360 Chapter 4 Transmission lines and cables

12. 6.1.2 Salient pole generator
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360 Chapter 4 Transmission lines and cables

13. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Figure 6.8 Two-pole salient pole generator concept.
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360 Chapter 4 Transmission lines and cables

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Synchronous Machines
Figure Four-pole salient pole generator concept.
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360 Chapter 4 Transmission lines and cables

15. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Figure 6.9Stator of a large salient pole hydro generator; inset shows the insulated conductors and spacers.
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360 Chapter 4 Transmission lines and cables

16. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Figure Large hydro generator rotor with view of the vertical poles.
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360 Chapter 4 Transmission lines and cables

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Synchronous Machines
Figure Rotor of a four-pole salient pole generator.
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360 Chapter 4 Transmission lines and cables

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Synchronous Machines
Figure Concept of the brushless exciter system
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360 Chapter 4 Transmission lines and cables

19. 360 Chapter 4 Transmission lines and cables
6.2 Operating Concept
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360 Chapter 4 Transmission lines and cables

20. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Figure Operating concept of a synchronous generator
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360 Chapter 4 Transmission lines and cables

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Synchronous Machines
(a) Flux is perpendicular to phase A (b) Flux is parallel to phase A
Figure 6.15 Rotation produced flux linkage variation.
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360 Chapter 4 Transmission lines and cables

22. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Figure Rotating flux linkage to phase A.
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Synchronous Machines
Main rotating flux
The rotating flux generates the induced voltage
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360 Chapter 4 Transmission lines and cables

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Synchronous Machines
Figure Field (Φf) and load generated (Φar) rotating fluxes.
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25. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Armature flux
Load current generates a rotating flux reducing the main flux and induced voltage
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26. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Armature flux
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360 Chapter 4 Transmission lines and cables

27. 360 Chapter 4 Transmission lines and cables
Synchronous Machines
Single phase equivalent circuit
Figure Single-phase equivalent circuit of a synchronous generator.
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360 Chapter 4 Transmission lines and cables