1, generator and constant power factor: there are two kinds of constant power factor adjustment, is a kind of simple constant power factor adjustment, adjust the power factor in accordance with set point.Not important in this kind of adjustment is suitable for system using small unit, large units using this function will weaken the stability of the system voltage, adverse to the system.Another kind of constant power factor adjustment The generator voltage regulator an auxiliary function, it does not change the essence of the voltage regulator, only in the voltage of the power factor unchanged within a certain range, it slowly adjust voltage set value, the controller makes a short time or a voltage regulator, long term is a constant power factor controller, but when the voltage is set by the scope will automatically turn to set the voltage regulation, after the exit of constant power regulation.It can be designed to run personnel adjustment, the effect of different voltage range for different regulation and control.

2, tracking system voltage operation: used for boot built during the pressure tracking system voltage generator voltage, and the requirements to meet the same period.

3, manual control mode: manual control mode generally USES constant generator excitation control current or excitation control voltage control method for brushless excitation control system USES constant excitation control machine excitation control current control mode.Manual control mode as standby mode of automatic control mode of failure, and trial test and used for generator excitation control system.Due to the manual control mode for generator voltage stability, so should not be commonly used in the power grid for a long time.

4, control mode of Angle: control Angle method is a kind of open loop control mode, can be in this way for excitation control machine time constant measurement and feedback adjustment.

5, of the generator and constant reactive power: there are two kinds of constant reactive power regulation, one kind is pure constant reactive power regulation, to conform to the value of reactive power can be adjusted at any time, on the system.Another constant reactive power regulation as an auxiliary function of voltage regulator, it does not change the essence of the voltage regulator, only in a certain range of voltage reactive power constant it slowly adjust voltage set value, made in a short period of time regulator or a voltage regulator, a long time to see is a constant reactive power controller, but when the voltage is set range, will automatically turn to set the voltage regulation, namely from the reactive power regulation.It can be designed to run personnel adjustment, the effect of different voltage range for different regulation and control.