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Future technical development trend of motor industry

Date:2017-5-17Read:

     The manufacturing industry is the mainstay of the national economy, is the foundation of our country, the country is the base power. "The 13th Five-Year" plan, in-depth implementation of < China manufacturing 2025>, to improve the innovation ability of manufacturing industry and the basic ability to focus on promoting information technology and manufacturing technology, the depth of integration, promote manufacturing industry towards high-end green, smart, and service development, foster new competitive advantages of motor manufacturing. Electrical equipment industry as the most widely used, is an important part of Chinese manufacturing industry, at present our country ordinary motor technology is mature, with the enterprises to raise the level of technology and constantly absorbing foreign advanced technology, the future of motor industry toward high efficiency, high reliability, lightweight miniaturization, intelligent and higher goal of development.

 Efficient motor efficiency lower than the foreign countries 1%-3%, the operating efficiency of the motor system is lower than abroad 10% to 20%. at present The motor of the total installed capacity has reached more than 400 million KW, the annual power consumption of 1 trillion and 200 billion KWh, accounting for 60% of total electricity consumption, electricity consumption accounted for 80% of the industry, including fan, water pump, compressor installed capacity has more than 200 million KW, the annual power consumption of 800 billion KWh, accounting for 40% of total electricity consumption about. Estimate the market based on the current status, each one percentage point improve the motor efficiency, can save about 26000000000 kilowatt hours of electricity per year, if the motor system improve the efficiency of 5%-8%, annual savings of electricity equivalent to two of the electricity to the Three Gorges reservoir. Enough to see such a huge market potential and motor efficiency of the motor will be so importance. Has become the development trend of motor technology. Countries increase the efficiency of motor promotion efforts, according to the IEC standard motor energy efficiency rating standard, has introduced a number of policies, and support efficient motor Application Wide, but efficient motor share grew slowly. At present in our country to promote efficient motor is still facing some problems. For example, the current stock of inefficient motor are mainly distributed in the high energy consumption of iron and steel, cement, metallurgy, paper and other enterprises. In addition, a large stock of inefficient motor motor in high proportion in large motor the efficiency value of manufacturing enterprises by using the test motor, the enterprise can't determine whether the motor efficiency really achieve high efficiency motor standards, resulting in some enterprises use the use of high-performance motor in the selection, there are some concerns the benefits of energy saving for the later, the promotion of efficient motor but also need the government, enterprises, joint efforts of users. 

China's motor industry, "such" the road has already started, the motor industry optimistic about the prospects for the next five years, China's high efficiency motor market will grow faster. With the promotion of efficient motor, a large group of The Chinese do not have the production of high-efficiency motor manufacturers will be eliminated out of the market concentration and market competitiveness can be improved. The high reliability is an important consideration of user selection of motor. Longer life of the motor, more compact structure is of high reliability. The service life of the motor and the temperature rise of length is very much the improved motor efficiency, lower temperature, can effectively prolong the service life of the motor. The direct drive motor system more compact structure, can realize the maximum dynamic performance, precision and cost efficiency. Due to abandon the mechanical transmission parts, such as a reducer and a belt, thus simplifying the mechanical design, significantly improve the availability. Reduce the operation cost. But we also see that the permanent magnet direct drive motor has its problems, the first is the rare earth permanent magnet material cost is high, the cost is relatively high Secondly, a problem is the most important, permanent magnetic materials in high temperature, vibration and current situation, there is a possibility of permanent demagnetization, causing the whole generator scrap, which is a great defect of direct drive permanent magnet generator. So in some special places of high reliability, direct drive motor is used as the first choice of asynchronous the motor also has irreplaceable advantages. Lightweight motor miniaturization, miniaturization can save material, save space, more and more favored by the users. Many products of motor size and weight are also made high demands, which in petroleum, chemical, coal and other fields of application are reflected obviously. In order to achieve the light, small target in the design process, the use of advanced technology and high-quality materials, and adhere to the principles of optimal design, in the same effective material conditions, the weight of unit power decreases That is the future trend of development.

 In addition, in some special fields, such as aerospace products, electric vehicles, CNC machine tools, computers, audio-visual products, medical devices, portable light mechanical and electrical integration products, this small volume of the motor, the light weight of the stringent requirements. Motor excellent enterprises in China, has also been working on to achieve the miniaturization of lightweight motor, a number of well-known domestic enterprises in order to achieve the miniaturization of electric motor, has done a lot to try, solutions for research and development of copper rotor motor. In order to make full use of the characteristics of copper, copper rotor motor play the advantages of the development, to optimize the design of the existing motor frame size the smaller one to two frame, guarantee the electrical performance at the same time, to reduce volume, weight and cost reduction objective. Copper rotor motor reduction machine base, small volume, installation size should be different, Use in special places without standard installation size requirements, no interchangeability and conventional motor industry standards, supply large quantities of cost advantage is obvious. Drop machine code, punching manufacturing difficulty and offline difficulties, such as the use of cast copper rotor motor, in the standard recommended by H112-H280 motor frame to realize the machine code.


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