The development of a variety of high efficiency and energy-saving motors in China
The development of a variety of high efficiency and energy-saving motors in China
YE4 series super high efficiency three-phase asynchronous motor
In April 2010 IEC launched a revision of the IEC60034-30 standard, the IEC60034-30 standard is divided into 2 standard, IEC60034-30-1 "online operation AC performance grade (IE code) and" IEC60034-30-2 "variable AC performance grade (IE code)". IEC60034-30-1 has been released in March 2014, compared with IEC60034-30, the main changes are as follows:
(1) the efficiency of the motor is divided into IE1, IE2, IE3, IE4, IE5 level, the highest efficiency of IE5, the lowest IE1 efficiency;
(2) extends the power range from 0.75 to 375kW extends from 0.12 to 1000kW;
(3) expanded the number range, from 2P, 4P, 6P expanded to 2P ~ 8P;
(4) expand the type of motor, from a single speed three-phase cage induction motor to all the online operation of AC motor;
(5) the operating temperature is -20 DEG C to +60 C.
The development of high-efficiency motor is still one of the direction of the future development of the motor technology, in order to fill the blank of our products 1 energy-efficient motors in GB18613 - 2012 standard, but also to cooperate with the national implementation of energy efficiency leader development plan, it is necessary to carry out the IE4 efficiency of the motor, in order to meet the future domestic and export market needs for high efficiency motors. The overall goal is to complete the IE4 ultra high efficiency series product design, and formulate product technical conditions. A series of products: H80 ~ H355; the power range is 0.75 ~ 355kW; pole number is 2, 4, 6, 8; the average efficiency was 95%, 6% higher than ordinary products.
Ultra high speed three-phase permanent magnet synchronous motor:
(1) the necessity of the development of ultra high speed three-phase permanent magnet synchronous motor: fill the gaps, leading the motor industry technological progress; promote the domestic manufacture of high-end equipment, enhance the level of China's high-end equipment manufacturing industry; promote the motor supporting materials (silicon steel, wire, insulation), power electronics (magnetic bearings, frequency conversion the development of industry controller); large capacity, ultra high speed motor application has significant energy saving benefits.
(2) product development goals: first against the centrifugal compressor in refrigeration, gas transportation and other fields of application, ultra high speed three-phase permanent magnet synchronous motor for supporting the development of power, the range of 10 ~ 300kW, speed range is 1000 ~ 50000r/min.
The design, manufacture and testing technology of ultra high speed motor is extended to the spindle motor, micro turbine power generation, high speed storage and other fields. Low speed and high torque permanent magnet synchronous motor at low speed and high torque generally refers to the speed of 500r/min, rated output torque of 500N • m transmission system. This kind of transmission system is common in many industries (such as ball mill drive system is a typical low-speed high torque transmission system), in addition to oil field machinery, mining machinery and plastic machinery. At present, this kind of equipment still uses the traditional motor and speed reducer drive mode, due to the reducer gear and other mechanical reasons to reduce the overall transmission efficiency of the system. The permanent magnet motor can realize the operation of low speed and high torque direct drive, which makes the application prospect of the permanent magnet motor in low speed and high torque transmission system very broad. The low speed and high torque permanent magnet motor is used in the ball mill, which can remove the large gear of the reducer, the direct drive pinion and the transmission part to realize the reliable operation of the ball mill, and the energy saving of the system is more than 10%.
The goal of product development is as follows:
(1) to complete the development of special motor for ball mill, the motor power range is from 2.2 to 400kW, the speed range is from 10 to 60r/min. (2) the low speed and high torque permanent magnet synchronous motor is developed for the hoist, belt conveyor, screw pump, pumping unit and other equipment.
(3) the standard of low speed and high torque permanent magnet synchronous motor (PMSM) special for ball mill and other equipment.
High performance permanent magnet servo motor system since 2005, China's AC servo motor market has entered a period of rapid development, the annual growth rate of more than 25%; in 2011 the market capacity of about 6000000000 yuan, is expected to reach $15 billion in 2015. However, the overall level of the domestic servo motor system is relatively backward, Japan, Europe, the United States and the United States fully occupy the high-end servo servo market, domestic servo products can only compete in the low-end areas. The AC servo motor market share of the four were occupied by foreign brands, foreign brands market share of nearly 80% in 2011, only about 20% of the market share of domestic brands, especially in high power AC servo system, basically monopolized by foreign products. At present, most of the application of AC servo motor system is about 25%, machine tools, textile machinery, packaging machinery accounted for 20%, accounted for 10% of the printing machinery accounted for 7%; the development of high-end CNC machine tool industry in support of national policy, high-end CNC machine tools has been included in the development of National Science and technology major projects; technology research and industrialization of machine tools with high performance permanent magnet servo motor system, the servo motor drive system in high precision, high performance and fast response in the direction of development, has important significance to improve the overall level of China's equipment manufacturing.
The product development phase is as follows:
(1) to complete the research and product development of CNC machine tool servo system, the motor power range is 3 ~ 15kW, and the performance level of similar product abroad; complete the permanent magnet servo drive application demonstration system on NC machine tool.
(2) the application of permanent magnet servo drive system in textile machinery, packaging machinery, printing machinery, and the development of typical specifications.
(3) develop the standard of permanent magnet servo motor for some equipment.
Permanent magnet synchronous reluctance motor with permanent magnet synchronous reluctance motor has the features of permanent magnet synchronous motor and switched reluctance motor, has the advantages of high efficiency, high power factor, high power density, wide speed range. At present, the application of permanent magnet synchronous reluctance motor (PMSM) in the industrial field needs to be further developed. The stage of product development goals for the development of rare earth synchronous reluctance permanent magnet motor series products, IE3 (ultra high efficiency) and cost efficiency levels, and YE3 series three-phase asynchronous motor, can replace the fan, water pump and compressor frequency control three-phase asynchronous motor. Series power range is 0.55 ~ 315kW; the base number is H80 ~ H355; pole number 4; nominal speed is 3000r/min; the speed range of 100 ~ 5000r/min.
Conclusion: "12th Five-Year" national strategic emerging industry development plan has clear energy saving and environmental protection, new generation information technology, biotechnology, high-end equipment manufacturing, new energy, new materials and new energy vehicles as a strategic emerging industries. Motor system is closely related to the development of strategic emerging industries, the development of high efficiency energy-saving motor and drive equipment is one of the important contents of energy saving and environmental protection industry. The application of servo motor and its control system in CNC machine tools and industrial robots is the basis of the high-end equipment manufacturing industry. Research and development of large wind turbines and nuclear power motors are the focus of new energy industry. High performance battery, drive motor and control technology is the key to the development of electric vehicle industry. Motor and system technology research and product development to the development and demand of China's strategic emerging industries combined, through energy saving and environmental protection, high-end equipment manufacturing, new energy, new energy vehicles and other key areas in the development of new products, to solve the motor in the design and manufacturing, testing, should be a key technical problem in the use of, so as to promote the the development of motor technology and motor industry.
