A voltage regulator is added to a synchronous generator for automatic field control. The voltageregulator is shown in figure 1. The generator is operating at 60 Hz, and the generator fieldresistance is Rf = 4Q. Voltage constant k. = 0.022 for the machine.a. The generator is originally loaded with a terminal voltage magnitude of V, = 275 V. In thecontroller, V = 280 V and Vo = 150 v. The controller has a constant gain of kỵ = 2.5. Find thefield voltage V;, the field current I, and Ef.b. The load is changed, and after the field controller has adjusted the field voltage, the terminalvoltage magnitude V; has dropped to 265 V. The controller inputs and gain remain the same.Determine the new value of Ef.VroeyVekyGeneratorFigure 1. Voltage Regulator.

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oltage regulator is added to a synchronous generator for automatic field control. The voltage ulator is shown in figure 1. The generator is operating at 60 Hz, and the generator field stance is Rf = 4 2. Voltage constant k, = 0.022 for the machine. The generator is originally loaded with a terminal voltage magnitude of V, = 275 V. In the troller, V¿ = 280 V and Vø = 150 V. The controller has a constant gain of ky = 2.5. Find the d voltage V, the field current Is, and E. The load is changed, and after the field controller has adjusted the field voltage, the terminal tage magnitude V, has dropped to 265 V. The controller inputs and gain remain the same. ermine the new value of Ef. Vro ey Ve ky Generator Figure 1. Voltage Regulator.

oltage regulator is added to a synchronous generator for automatic field control. The voltage ulator is shown in figure 1. The generator is operating at 60 Hz, and the generator field stance is Rf = 4 2. Voltage constant k, = 0.022 for the machine. The generator is originally loaded with a terminal voltage magnitude of V, = 275 V. In the troller, V¿ = 280 V and Vø = 150 V. The controller has a constant gain of ky = 2.5. Find the d voltage V, the field current Is, and E. The load is changed, and after the field controller has adjusted the field voltage, the terminal tage magnitude V, has dropped to 265 V. The controller inputs and gain remain the same. ermine the new value of Ef. Vro ey Ve ky Generator Figure 1. Voltage Regulator.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.4P

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