The no-load line voltage wave form aberration rate of energy-saving power driving generator is 0.87%, and effectively reduces radio interference of nonlinear load to meet ship electric propulsion system's power performance requirement. This series of products with very extensive application fields can be used for ship electric propulsion system's main power and backup power of building, telecommunication, oil field, illumination and so on. It runs safety, reduces the manufacturing cost and improves product's economic effects. At the same time, energy-saving power driving generator adopts digital AVR to control voltage and permanent excitation, and its comprehensive performance is greatly improved and enhanced.