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Chapter 17 Electric Utility Applications

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Chapter 17 Electric Utility Applications. These applications are growing rapidly. HVDC Transmission. There are many such systems all over the world. HVDC Poles. Each pole consists of 12-pulse converters. HVDC Transmission: 12-Pulse Waveforms. Idealized waveforms.

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Chapter 17 Electric Utility Applications

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  1. Chapter 17 Electric Utility Applications • These applications are growing rapidly Chapter 17 Electric Utility Applications

  2. HVDC Transmission • There are many such systems all over the world Chapter 17 Electric Utility Applications

  3. HVDC Poles • Each pole consists of 12-pulse converters Chapter 17 Electric Utility Applications

  4. HVDC Transmission: 12-Pulse Waveforms • Idealized waveforms Chapter 17 Electric Utility Applications

  5. HVDC Transmission: Converters • Inverter mode of operation Chapter 17 Electric Utility Applications

  6. Control of HVDC Transmission System • Inverter is operated at the minimum extinction angle and the rectifier in the current-control mode Chapter 17 Electric Utility Applications

  7. HVDC Transmission: DC-Side Filters Tuned for the lowest (12th harmonic) frequency Chapter 17 Electric Utility Applications

  8. HVDC Transmission: AC-Side Filters Tuned for the lowest (11th and the 13th harmonic) frequencies Chapter 17 Electric Utility Applications

  9. Effect of Reactive Power on Voltage Magnitude • Illustration of the basic principle Chapter 17 Electric Utility Applications

  10. Thyristor-Controlled Inductor (TCI) • Increasing the delay angle reduces the reactive power drawn by the TCI Chapter 17 Electric Utility Applications

  11. Thyristor-Switched Capacitors (TSCs) • Transient current at switching must be minimized Chapter 17 Electric Utility Applications

  12. Instantaneous VAR Controller (SATCOM) • Can be considered as a reactive current source Chapter 17 Electric Utility Applications

  13. Characteristics of Solar Cells • The maximum power point is at the knee of the characteristics Chapter 17 Electric Utility Applications

  14. Photovoltaic Interface • This scheme uses a thyristor inverter Chapter 17 Electric Utility Applications

  15. Harnessing of Wing Energy • A switch-mode inverter may be needed on the wind generator side also Chapter 17 Electric Utility Applications

  16. Interface with 3-Phase Utility Grid • Uses a thyristor inverter Chapter 17 Electric Utility Applications

  17. Interface of SMES • Can be used for utility load leveling Chapter 17 Electric Utility Applications

  18. Active Filters for Harmonic Elimination • Active filters inject a nullifying current so that the current drawn from the utility is nearly sinusoidal Chapter 17 Electric Utility Applications

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