Efficient energy-saving motors will usher in the golden period
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"The power saving of the high efficiency motor is very large, if the motor for two or three years continuously, the electricity can be saved to buy a motor." Nanyang Wei Huajun, chairman of the board of directors of explosion-proof energy saving motor is also very optimistic about the prospects.
Recently, permanent magnet motor, composite electric group also released an independent research and development. Tianan group magnetic rotational Gong Yu, deputy director of the Research Institute at the press conference said, the permanent magnetic composite motor efficiency can reach above 80%, rated efficiency can reach more than 90%, energy-saving effect is very significant.
In fact, the motor is a real power, more than 60% of the electric energy is used to drive its operation. Data show that in 2013 China's Motor Holdings of about 1.7 billion kilowatts, the total electricity consumption of about 3000000000000 kwh, accounting for 75% of total electricity consumption in the whole society, 64% of industrial electricity consumption.
Thus, if it can save energy from the motor, the prospect is very considerable. In a number of industry insiders view, energy demand will be the eternal theme of the motor, in the global energy saving and emission reduction in the background, to create energy-efficient motors to become the global motor industry development consensus.
Energy comparable to the three gorges power generation
Motor is a kind of electric and magnetic interaction, to achieve energy conversion and transmission of electromagnetic mechanical device, the application scope of steel, nonferrous metals, petrochemical, chemical, building materials and other industries. Where electrical energy is converted into mechanical energy or the place where mechanical energy is converted into electrical energy must be used. Therefore, the motor industry as a whole has a huge market capacity.
In our country, the motor industry has passed the course of one hundred years, at present, the domestic medium and small sized motor has reached 1600000000 kilowatts, China has become the largest in the production, use and export of small motor. However, the high-end motor market in China has long been monopolized by foreign investment, and compared with the international advanced motor manufacturing, it is still in a backward state.
Investigate its reason, the investment adviser senior researcher He Zaihua on the China Science News reporter analysis, one is the lack of independent research and development capabilities, resulting in high technology content, high added value products less; two domestic motor manufacturing industry chain has not been fully established, restricting the development of high-end motor manufacturing; three is China's energy saving, environmental protection awareness is not strong, high-end motor application in China is less.
In fact, motor energy consumption in our country is very serious. China Energy Conservation Association executive vice chairman Wang Qinping given a set of data: the average motor life of our country is less than 3%~5%, the operating system is more efficient than foreign 10%~20%. In order to estimate the efficiency of the motor, the motor can be improved by 1%, the power consumption per year is about 26000000000 kW, and the annual power consumption of the motor system is equivalent to the amount of 5%~8% 2~3.
Recently held in China manufacturing 2025: high-end equipment manufacturing and industrial application Collaborative Innovation Summit, the Chinese electrical industry association, Wang Kun pointed out that the development of China's Electrical Industry Association, green development is the Chinese manufacturing 2025, a guiding principle, but the development of China's motor industry is facing the contradiction between resource consumption and motor energy conversion efficiency.
"Our country GDP accounted for 12% of global energy consumption is 22% of the world, high energy consuming industries and energy consumption per unit of energy consumption and the gap between 10%, the operating efficiency of the motor system and the motor and drag the foreign advanced technology and even a difference of 20%." Wang Kun said that the motor is a transit equipment, if the energy consumption by the motor is depleted, it will bring a major blow to industrial energy.
Improving motor energy efficiency is the key
October 2010, China's Government during the Copenhagen conference commitment: by 2020, the Chinese unit GDP energy consumption and carbon dioxide emissions than in 2005 fell 40%~45%; March 2011, China's national economic and social development five twelfth year plan clearly put forward, "Twelfth Five Year" period, China's energy consumption per unit of GDP and carbon dioxide emissions were reduced by 16% and 17%.
Electricity consumption accounts for more than 50% of total energy consumption, while the electric power consumption is 50% of the whole society. Therefore, it is necessary to improve the efficiency of the motor.
Wang Kun said that in 2013, the Ministry of industry and the AQSIQ jointly issued the national motor energy efficiency enhancement program, to be used for three years, through the promotion, elimination, transformation of the motor and motor system 100 million kilowatts, to enhance the motor energy efficiency, realize the industrial power saving 300 billion kwh.
"The plan has now entered the middle and later stages of the." Wang Kun, the past few years, our focus on strengthen the leading and constraint of the standard, the permanent magnet motor compound energy efficiency limit value to carry out the provisions, the key recommendation of the 59 motor energy-saving products, four high efficient energy-saving motor products, 25 energy-saving motor technology, more than two years cumulative promotion, motor, phase out inefficient motor system, energy-saving renovation of more than 4000 million kilowatt hours.
At the same time, as compared to the energy efficient motors and general motors, need to consume more copper, aluminum, cold-rolled silicon steel raw materials, production cost is high, the price is compared with a common electric motor higher than 10% ~ 30%, resulting in only a handful of procurement, the motor. To this end, China has formulated a "subsidy efficient + prohibition of inefficient" dual promotion policy, in order to promote energy-efficient motor production and sales growth.
Although the national multi pronged, but the promotion effect of efficient motor is still lower than the policy expectations. Wang Kun admits: "the current domestic energy efficiency is still the problem remains, energy efficiency labeling is only 85%, there is no qualified 1/5, the low efficiency of the motor is still a big market." And Nanyang explosion protection group chairman Wei Huajun also had pointed out, for the promotion of the use of high efficiency motors, while local governments also give enterprise quota bonus, but buy enterprises still not much.
"Is proposed to live production, according to the national standard of energy efficiency is lower than the strong, the motor can not produce. However, there is a market for production, some people dare to buy on the sale of people. So, the elimination of inefficient motor is the key problem to protect the enterprise." Wang Kun pointed out that at present, the motor is not strong, most of the area is only efficient motor replacement inefficient motor, and not for different industries and enterprises. Therefore, the elimination of inefficient motor is still in the market promotion mode and market constraints.
Wang Kun said the next step will be to take the market force mechanism to play a leading and oversight role, and the use of certain measures to play a certain role in the market. In addition, it will be divided into areas, sub sectors of the motor system to transform, and the monopoly of the terminal industry companies to work closely, to promote the use of efficient motor.
Wei Huajun said that the reason for the promotion of high efficiency motor is also related to the standard of the domestic high efficiency motor to implement the schedule lag and other factors. "At present, the standard of high efficiency motors and the international standard of high efficiency motors are the same, but the implementation time is different, compared with the United States, at least 5 years behind." To this end, Wei Huajun called on the country as soon as possible the introduction of more effective policies to clear the industry in all aspects, to promote the promotion of high-end motor efficiency.
High-end motor will become mainstream
The industry believes that if the use of the general motors are replaced with high efficiency motors, in order to make the whole motor system running efficiency to reach the level of European and American developed countries, at least ten years or more.
In He Zaihua view, the development of high-end motor has several difficulties: first, the need to improve the motor's comprehensive simulation technology and design technology; two is to form an efficient motor type spectrum, to carry out high efficiency motor product series work; three is to vigorously develop high precision and high power servo technology, due to the technology of foreign technology closed, the need for our own R & D, R & D more difficult.
In the "China made 2025" in the background, how to promote the development of high-end motor industry in China? Beijing electrical technology and Economic Research Institute deputy director Lu Chenyu said, first of all to focus on the research and development of motor system energy efficiency classification and testing methods, involving product design, manufacturing, promotion and application of all aspects, including the selection, matching, testing and other energy saving products, as well as the stock of motor system running monitoring, assessment and energy saving reform proposed.
Lu Chenyu said that in the field of high-end equipment manufacturing, to large-scale engineering steel, port machinery, marine engineering equipment, high-end CNC machine tools supporting the research, to achieve the localization of motor, and for the development of China's manufacturing automation, intelligent development needs, development of various types of robot servo motor system, and the formation of motor and its system products standards, testing standards and application standards.
He also said that the product miniaturization and lightweight is one of the future direction of the development of high-end motor, that is, the use of advanced design and manufacturing technology and new quality materials, in order to meet the performance of the motor, reducing the size of the motor, reducing weight. Another direction is for the industrial field of special fans, pumps, compressors, equipment, as well as for building materials, mining, petrochemical, textile, ships and other typical mechanical equipment, the development of a variety of structure and performance of the direct drive motor, motor and electric generator.
From a technical point of view, He Zaihua said, the high-end motor manufacturing industry will show the following trends: first, the advanced power electronics technology to replace the traditional mechanical way, to achieve the device control and equipment manufacturing; two is a highly efficient, intelligent trend, the inverter can control system integrated into the motor system, 20%~30% energy saving; three is the use of AC speed control, the use of electric drive system with speed reducer.
It is noteworthy that, according to the international general estimation method, the motor installed capacity of the generator capacity of 2.5~3.5 times. In the future for a long time, China's electric motor output will continue to expand. It is estimated that by 2020, the installed capacity of generators reached 1 kilowatts per capita, and the installed capacity of the motor will reach 4.5 billion kilowatts, and the installed capacity of the motor is about 1.2 billion kilowatts, the new about 30 billion kW will bring huge market space for high efficiency motor and special motor.