My country's high-efficiency motor research and development: there are achievements but there are still gaps
My country has gradually become a big country in motor manufacturing and has mastered the production technology of high-efficiency and ultra-high-efficiency energy-saving motors, but overall, the industry's competitiveness is still weak. The motor usage is large and the energy efficiency level is low.
At present, there is still a big gap between my country's overall energy efficiency level and foreign countries, especially the energy efficiency use of power-consuming equipment such as motors and transformers, which are used in large quantities and have a wide application area. The energy consumption of motors in the field accounts for more than 70% of the total power consumption in the industrial field, and the energy efficiency consumption of the motor system is more different from that of foreign countries, about 15% to 20%. Gao Dongsheng, deputy director of the Energy Conservation and Comprehensive Utilization Department of the Ministry of Industry and Information Technology, once said.
According to the GB18613-2012 standard, most of the motors currently produced and in use in my country are Class 3 energy-efficient motors that are lower than the standard. Its average efficiency is 87%, while the efficiency of high-efficiency motors that have been implemented in developed countries has reached more than 91%. In addition, statistics from the Ministry of Industry and Information Technology show that high-efficiency motors account for only about 5% of domestic motors currently in use.
In recent years, although my country has basically kept pace with the international level in the research and development of high-efficiency motors, technological progress is very optimistic. But unfortunately, the IE3 motors produced in our country are too rarely used in China, and most of them are used for export. It is not difficult to see that my country still has huge challenges in high-efficiency motors.
In the future, on the one hand, it is necessary to carry out in-depth research on energy-saving technologies for motors and their systems, such as developing high-efficiency energy-saving motors; high-efficiency fan, pump, and compressor systems; high-efficiency transmission systems; reasonable matching of motor systems; system integration solutions for energy-saving motor systems, etc. On the other hand, it is necessary to formulate relevant guidelines and standards for energy saving of motor systems, such as guidelines for system energy-saving transformation, and energy-saving testing and evaluation standards for motor systems in special fields. In addition, it is necessary to establish energy-saving certification bodies for motor systems, such as market access certification, energy-saving product certification, and energy-saving certification for various high-efficiency motor systems.
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