Energy Conversion and Transport George G. Karady & Keith Holbert EEE 360 Energy Conversion and Transport George G. Karady & Keith Holbert Chapter 6 Synchronous Machine 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Lecture 14 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables 6.1 Construction 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables 6.1.1 Round Rotor Generator 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.1 View of a two-pole round rotor generator and exciter. 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.2 Major components of a round rotor two-pole generator 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.3 Cross-section of a large turbo generator. (Courtesy Westinghouse) 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.4 Details of a generator stator. 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.5 Rotor block of a large generator. (Courtesy Westinghouse) 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.6 Generator rotor with conductors placed in the slots. 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.7 Large generator rotor completely assembled. (Courtesy Westinghouse) 11/17/2018 360 Chapter 4 Transmission lines and cables

6.1.2 Salient pole generator 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.8 Two-pole salient pole generator concept. 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.12 Four-pole salient pole generator concept. 11/17/2018 360 Chapter 4 Transmission lines and cables

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. 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.10 Large hydro generator rotor with view of the vertical poles. 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.11 Rotor of a four-pole salient pole generator. 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.13 Concept of the brushless exciter system 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables 6.2 Operating Concept 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.14 Operating concept of a synchronous generator 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines (a) Flux is perpendicular to phase A (b) Flux is parallel to phase A Figure 6.15 Rotation produced flux linkage variation. 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.16 Rotating flux linkage to phase A. 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Main rotating flux The rotating flux generates the induced voltage 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Figure 6.17 Field (Φf) and load generated (Φar) rotating fluxes. 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Armature flux Load current generates a rotating flux reducing the main flux and induced voltage 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Armature flux 11/17/2018 360 Chapter 4 Transmission lines and cables

360 Chapter 4 Transmission lines and cables Synchronous Machines Single phase equivalent circuit Figure 6.18 Single-phase equivalent circuit of a synchronous generator. 11/17/2018 360 Chapter 4 Transmission lines and cables