Analysis on the details and present situation of energy-saving motor

As we all know, the energy-saving motor has a wide range of uses, and it is the most popular new energy-saving motor product in the national government and the world. Here, the idea of energy-saving motor is introduced, and let's take a look with Sima Motor Xiaobian.

Driving devices for driving fans, pumps, compressors, machine tools, belts and other equipment. Used in metallurgical, petrochemical, chemical, coal, building materials, public utilities, household appliances and other industries and leading industries. This is the largest electrical equipment in the world, and the electricity consumption accounts for more than 60% of the total social electricity consumption and more than 60% of the total industrial electricity consumption. About 75% of the electricity. In recent years, with the support of national policies, China's automobile energy efficiency level has been continuously improved.

But overall, China's energy efficiency level is still very low, and the average level of motor efficiency is 3~5 percentage points lower than that of foreign countries. The operating efficiency of motor system is 10% lower than that of foreign advanced level because of a large number of low-efficiency motors in use. Huge electric power and energy waste motors are widely used in blower, pump, blower, compressor, refrigerator, machine tool, transmission and other fields. The end energy of electrical equipment such as mechanical transmission devices such as belts is large.

According to the statistics of Sima Electric, in 2000, the annual power consumption of various engines in China reached 238 million kilowatts, accounting for about 57% of the national power consumption, which is different from the name of "big consumer". Motor consumes a lot of energy and has great energy-saving potential. At present, the power consumption of engines in China is about 1.7 billion kilowatts, and the total power consumption is about 1.7 billion kilowatts.

The electricity consumption is about 3 trillion kWh, accounting for 64% of the total social electricity consumption, of which the industrial electricity consumption is 2.6 kWh. Megakwh accounts for about 75% of industrial electricity consumption. Countries and international organizations around the world improve the energy efficiency of automobiles. As an important energy-saving countermeasure, the energy-saving of motor system has attracted worldwide attention.

In recent years, with the support of national policies, China's automobile energy efficiency level has been continuously improved, but overall, China's automobile energy efficiency level has been improved. This level is still very low. It is estimated that for every 1 percentage point increase in the energy efficiency of automobiles in the industrial field, the annual power consumption can be saved. About 26 billion degrees. By promoting high-efficiency motors, eliminating inefficient motors in use, efficiently transforming and manufacturing inefficient 0 x 642, 0 x 642 system can be matched and energy-saving transformed according to its load characteristics and operating conditions.

The efficiency of the motor system is improved by 5%~8%, and the annual power saving reaches 130 ~ 230 billion kWh, which is equivalent to the motor system. The Three Gorges Power Station generates electricity. At present, there are the following main problems in the application of motors and systems in China.

Problem: The proportion of high-efficiency motors is less than 5%; The energy efficiency level of a large number of motors is lower than the national mandatory performance efficiency standard (GB 18613-2012). The system matching with 3~5 percentage points lower fixed value is unreasonable, the phenomenon of "Malaysian car" is serious, and the equipment runs at low load for a long time. The regulation mode of energy-saving motor system is backward, and many fans and pumps adopt mechanical regulation mode. The operating efficiency of fans, pumps, compressors and other equipment systems is 10% lower than the advanced level abroad. In the energy-saving transformation of motors, the most common problem is that we often install motors and drivers.