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Chapter 17 Electric Utility Applications

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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