Diesel Generator AVR Works

AVR is modulating control exciter field excitation current, AVR to feedback voltage sensing signal from the host of the stator by controlling the low power of the exciter field, adjust the exciter armature rectifier output power, so as to achieve the purpose of controlling the host field current . Providing exciter field excitation source, there are two ways, one is taken directly from the host of the stator; another is provided by PMG (permanent magnet generator) system. PMG system provides a constant independent of the load of the stator excitation power, the generator provides high motor starting capability is not subject to interference generated by the nonlinear load host of stator output voltage waveform distortion (such as SCR DC motor load).