China will continue to increase the utilization efficiency of terminal energy, increase energy-saving and emission-reduction efforts, and ensure the successful completion of the “Eleventh Five-Year” energy-saving and consumption-reduction target.

China's motor energy consumption accounts for nearly 80% of industrial electricity consumption. Last year, a new high-efficiency motor with completely independent intellectual property rights, energy saving and energy saving materials—Rare earth permanent magnet ironless core motors was successfully developed in Shenzhen. Afterwards, after listening to the inventor’s technical report twice, the National Development and Reform Commission’s Department of Circumstances immediately organized an eight-member expert group that was attended by academicians of the Chinese Academy of Engineering to conduct a special investigation and then began the academician’s expert review and review. At the end of last year, the National Development and Reform Commission held a seminar on the promotion of rare earth permanent magnet ironless core motors in Shenzhen to discuss and deploy the accelerated promotion and application.

With the pressure of energy saving and emission reduction increasing, and the issue of energy security becoming increasingly prominent, what changes will be brought about by the widespread application of energy-saving and high-efficiency motors? What are the difficulties in promoting? What are the next policy arrangements? Recently, the reporter interviewed Zhao Jiarong, Director of the Department of Central Resources Development, National Development and Reform Commission, about the promotion of rare earth permanent magnet ironless core motors.

Such as replacing 1/3 of the new motor, can save 50 billion kwh / year Reporter: Can you explain, rare earth permanent magnet coreless motor is mainly used in what areas, why energy saving and emission reduction is of great significance?

Zhao Jiarong: China's motor system has a capacity of about 700 million kilowatts, and its annual new capacity has reached 150 million kilowatts. However, the current market share of high-efficiency energy-saving motors is less than 3%. With the in-depth development of energy conservation and emission reduction in our country, the demand for highly efficient and energy-saving motors is huge and the development prospects are bright. In addition, China's high-performance permanent magnet materials have been industrialized, and the output of NdFeB permanent magnets has ranked first in the world, and the prices tend to be reasonable. The basic conditions for the large-scale industrialization of rare earth permanent magnet coreless motors are already in place.

Specifically, the rare earth permanent magnet ironless core motor can be applied to a wide range of general-purpose fans, pumps, compressors and other general-purpose equipment, but also can be used in electric vehicles, wind power, CNC machine tools, oil field pumping units, mobile power stations and other fields , And there are unique advantages, development prospects are broad. According to preliminary calculations, if one-third of the new motors are replaced, it can save nearly 50 billion kwh per year, save 500,000 tons of silicon steel sheets, and 20,000 tons of copper, which can create an output value of nearly 10 billion yuan. Economic benefits and society The benefits are considerable.

In terms of industrial dragging equipment: Fans, pumps, compressors, and other general-purpose equipment in China's key energy-consuming industries consume more than 40% of the electricity, and annual electricity consumption exceeds 500 billion kwh. These devices have a large stand-alone capacity and a low level of system energy efficiency. According to conservative estimates, the average operating efficiency of rare earth permanent magnet coreless motor-driven general-purpose equipment can be increased by more than 20%, and the potential for electricity saving is 100 billion kwh.

In terms of wind power generation: rare earth permanent magnet ironless core wind turbines are lightweight and have high power generation efficiency, which can reduce wind farm construction costs and wind power costs. In 2010, the scale of wind power generation in China will reach 20 million kilowatts, and it is expected to reach 100 million kilowatts by 2020. At present, the scale of China's wind power equipment market is nearly 100 billion yuan. The demand for rare earth permanent magnet coreless core wind turbine generators is huge. If it is applied in a comprehensive manner, by 2020, it can generate more than 10 billion kWh annually.

In terms of electric vehicles: It is predicted that in 2015 China's pure electric vehicle production will exceed 10% of the total passenger car production, and the annual electricity consumption will exceed 20 billion kwh. The rare earth permanent magnet coreless motor is more efficient and smaller in size, and has more obvious advantages in the field of electric vehicles than the current most advanced permanent magnet brushless motor technology. According to conservative estimates, rare earth permanent magnet ironless motors are widely used in electric vehicles. By 2015, the annual electricity savings will exceed 1.2 billion kWh.

Reporter: What are the advantages of rare earth permanent magnet ironless motors in terms of performance?

Zhao Jiarong: Compared with traditional motors, rare earth permanent magnet ironless motors have "four major" performance advantages: First, high efficiency and energy saving. Motor power factor is high, no iron loss, no magnetic damping, the efficiency has been greatly improved. The actual application of the user proves that the 1.5 kW and 3 kW diesel power stations adopting this technology have a fuel saving rate of 40% compared with the conventional generators.

The second is light and material. It is small and only a fraction of the weight of conventional motors. It can save 80% of steel, 100% of silicon steel, and 50% of copper. The third is good speed control. The motor speed and power frequency are kept constant, which simplifies the frequency conversion speed control system. The speed range is wide and the precision is high. It is easy to make a multi-pole, low-speed high-power motor, and the gear box, pulley and other drive systems can be eliminated to achieve direct drive. The fourth is strong reliability. The temperature rise of the motor is low, and the motor windings are made of precision insulating packaging technology of polymer materials. The environmental adaptability is good and the operation is reliable.

Compared with traditional motors, rare earth permanent magnet coreless motors have the advantages of energy saving and material saving, and excellent performance. Compared with the current advanced rare earth permanent magnet motors, they are more efficient, lighter, and more stable.

Will be included as a key technology for energy conservation and environmental protection industry development planning Reporter: What are the major problems facing the promotion of rare earth permanent magnet ironless core motors?

Zhao Jiarong: The rare earth permanent magnet ironless core motor is a brand-new product, the market is under cultivation, and promotion and application still face many difficulties. First, social awareness is not high. Most users do not understand the technology and are skeptical about the product's working principle, application effect, and reliability. The second is the lag in the standard specification. China's standard in the permanent magnet motor is very scarce, and the rare earth permanent magnet ironless core motor is a blank, which seriously affects the product selection, performance evaluation, and quality inspection of this type of motor, which restricts the promotion and application of the product. Third, the degree of industrialization has yet to be improved.

At present, low-power rare-earth permanent-magnet coreless motors have been mass-produced and have been promoted for use in small-scale wind power generation, diesel power generation, and power tools. However, it is still in the demonstration stage in medium- and high-power motors. Fourth, lack of policy incentives. Energy-efficient motors have market obstacles such as high initial cost and asymmetric information, and require the government to introduce relevant incentive policies to stimulate the market and foster industries.

Reporter: At the end of last year, the National Development and Reform Commission held an on-site conference on the promotion of rare earth permanent magnet ironless core motors in Shenzhen to discuss and deploy for accelerating the promotion and application. What specific arrangements will be made in the next step.

Zhao Jiarong: At present, the R&D and industrialization level of rare earth permanent magnet ironless motors with independent intellectual property rights in China ranks among the top in the world. Against the background of the international financial crisis and global climate change, both in the current and long-term considerations, we should seize the opportunity, increase our promotion efforts, and expand as soon as possible.

According to the instructions of Deputy Prime Minister Li Keqiang and the leaders of the Party committee, in the next step, we will work together with relevant departments to promote the work in the following areas. The first is to strengthen planning guidance. The second is to organize and apply demonstrations. The third is the promotion of financial subsidies. The fourth is innovation and promotion mechanism. Fifth, strengthen the basic work. Sixth, do a good job in promotion and publicity.

At the same time, we must give full play to the role of the market mechanism and make the industry bigger and stronger. Manufacturers should continuously enhance their independent innovation capabilities, including talents, R&D, and inspection capabilities, continue to increase technological research and development, improve product model series, and accelerate the application of industrial general-purpose equipment such as fans, pumps, and compressors to a wide range. High-power motors, such as electric vehicles and wind turbines, are suitable for the industrialization of servo motors for high-tech equipment such as intelligent robots (300024) and CNC machine tools, and form industrial scale as soon as possible; strengthen production quality control and ensure product quality; Marketing mode and improve after-sales service level; attach importance to intellectual property protection, and create good conditions for the large-scale promotion and application of the technology and products.

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