R180 AVR - Automatic Voltage Regulator | Generator Automatic Voltage Regulator Stabilizer Control Module Brushless Genset

The R180 is a fully solid-state automatic voltage regulator (AVR) which is used for excitation of a brushless alternator powered by a permanent-Magnet (PMG) exciter or by auxiliary windings. The alternator voltage between phases V-W is sampled, processed and converted to a direct current value. This signal is compared to the reference value which is internally generated depending upon the voltage setting. The comparison is made by a PID controller, which controls the alternator excitation. The power circuit uses a pulse width modulated (PWM)IGBT circuit to adjust the feld current, which gives a good dynamic/transient response. It takes a 1 and 5 a signal form a droop current transformer in U phase to give a voltage droop which allows the alternator to operate in parallel. The R180 has an accessory input, which can be used as a remote potentiometer terminal when connected to a 1 KΩ potentiometer or takes +/- 4.5 VDC in order to change the terminal voltage. The R180 is triggered from the alternator remanent voltage.