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On December 4, 20 MW class marine turbogenerator units with complete intellectual property rights, independently developed by the Fourth Seventy-four Research Institutions, passed the appraisal of scientific and technological achievements and became the highest power class marine turbogenerator units in China. Ma Weiming, academician of the Chinese Academy of Engineering, He Lin, academician of the Chinese Academy of Engineering and experts from relevant domestic academies serve as members of the appraisal committee. Gao Xiaomin, director of the four institutes, and Zhao Yueping, assistant director of the four institutes attended the appraisal meeting.
The project has successfully broken through many key technologies such as multi-oil motor high-voltage electro-hydraulic speed regulation, dual-channel backflow integrated bypass and variable speed operation for power generation. It has innovatively applied the design of direct-connected dual-flexible rotor shafting and low-frequency multi-line spectrum active control. The power of the project has reached four times the full power of the existing marine turbogenerator units in China and is equivalent to the power level of the most advanced turbogenerator units in Europe and the United States.
Experts of the appraisal committee agreed that the achievements of the project filled the gap of domestic high-power marine turbogenerator units and reached the international advanced level. As the core equipment of the large-capacity marine power system, the project not only provided the electric power guarantee for the propulsion system, but also laid the foundation for the future full-electric application of ships. It has great military value and social benefits.
