China still has huge challenges in high-efficiency motors
In recent years, although China has basically kept pace with the international level in the research and development of high-efficiency motors, the technological progress is very optimistic. But unfortunately, the IE3 motors produced in our country are used too little domestically, and most of them are used for export. It is not difficult to see that China still has huge challenges in high-efficiency motors.
The electricity consumption of electric motors in the industrial sector accounts for about 75% of the total electricity consumption of the industry. Motor energy conservation has become the key to industrial energy conservation. With the dual pressures of energy saving, emission reduction and environmental protection, energy-saving equipment represented by high-efficiency motors has attracted much attention in the market. A high-efficiency motor is a motor with a high efficiency of a general-purpose standard motor. High-efficiency motors use new motor designs, new processes and new materials to improve output efficiency by reducing losses in electromagnetic, thermal and mechanical energy. Compared with standard motors, the energy-saving effect of using high-efficiency motors is very obvious, and the efficiency can be increased by 4% on average.
Accumulatively promoted high-efficiency motors of 170 million kilowatts, eliminated 160 million kilowatts of low-efficiency motors, implemented 100 million kilowatts of energy-saving technology for motor systems, and implemented 20 million kilowatts of high-efficiency remanufactured motors. It is estimated that in 2008, energy saving will be 80 billion kWh, equivalent to saving 26 million tons of standard coal and reducing carbon dioxide emissions by 68 million tons. The Department of Energy Conservation and Comprehensive Utilization of the Ministry of Industry and Information Technology announced that it will officially implement the motor energy efficiency improvement plan nationwide. The plan is to use three years to improve the energy efficiency of the national motor and promote the transformation and upgrading of the motor industry. More than 30,000 industrial enterprises with an annual electricity consumption of 10 million kWh or more will be the key targets of the plan. Based on this estimation, the implementation of this plan will drive the demand for high-efficiency motors and related equipment to nearly 100 billion yuan. With the advancement of the energy efficiency improvement plan, the demand for high-efficiency motors will gradually be released, increasing year by year.
China's motor exports will also gradually increase. Now there are fewer and fewer enterprises engaged in traditional motor production in developed countries such as Europe and the United States, and Chinese motor companies may become their importers. Short-circuiting of motor energy efficiency and foreign countries China has gradually become a major motor manufacturing country, mastering efficient and ultra-efficient energy-saving motor production technology, but overall, the industry competitiveness is still weak. The amount of motor is large and the energy efficiency level is low. At present, China's overall energy efficiency level is still far from that of foreign countries, especially the energy-efficient use of electrical equipment such as motors and transformers. The amount of electricity used is large and the application area is wide. The electricity consumed by the motor per year accounts for 64% of the total social power consumption. The energy consumption of the field motor accounts for more than 70% of the total electricity consumption in the industrial field. The energy efficiency of the motor system is much different from that of the foreign country, which is about 15%~20%. Gao Dongsheng, deputy director of the Department of Energy Conservation and Comprehensive Utilization of the Ministry of Industry and Information Technology, said.
In recent years, although China has basically kept pace with the international level in the research and development of high-efficiency motors, the technological progress is very optimistic. But unfortunately, the IE3 motors produced in our country are used too little domestically, and most of them are used for export. It is not difficult to see that China still has huge challenges in high-efficiency motors. In the future, on the one hand, we should carry out in-depth research on energy-saving technologies for motors and their systems, such as research and development of high-efficiency and energy-saving motors; high-efficiency fans, pumps, compressor systems; high-efficiency transmission systems; reasonable matching of motor systems; and system integration solutions for energy-saving of motor systems. On the other hand, it is necessary to formulate guidelines and standards for energy-saving of motor systems, such as guidelines for system energy-saving renovation, energy-saving testing and evaluation standards for motor systems in special fields. In addition, we must establish a motor system energy certification agency, such as market access certification, energy-saving product certification, energy-saving certification of various high-efficiency motor systems.
