What happens to the stator's output voltage if the Automatic Voltage Regulator computes a positive error signal?

When the Automatic Voltage Regulator (AVR) computes a positive error signal, it indicates that the output voltage is too low compared to the desired set point. The AVR's primary function is to control and regulate the voltage output of the generator by adjusting the excitation current supplied to the stator windings.

In the situation where a positive error signal is detected, the AVR takes corrective action by increasing the excitation current. This response leads to a higher magnetic field strength in the stator, which in turn generates a higher output voltage.

Therefore, the correct outcome is that the voltage would increase as a direct result of the AVR's corrective action to eliminate the positive error signal. This mechanism ensures stable voltage levels are maintained to meet the demands of the electrical load.