Function and principle of generator excitation system?

In the past ten years, due to the emergence and use of new technologies, new processes and new devices, the excitation mode of generators has been continuously developed and improved. In the field of automatic regulating excitation devices, many new regulating devices have been developed and popularized. Because of the obvious advantages of the automatic regulation excitation device realized by microcomputer software, many countries are developing and testing the digital automatic regulation excitation device composed of microcomputer computer with corresponding external equipment, which can realize the adaptive optimal regulation.