New motor boosts electric vehicle industry to a new level
The motor is not far away from our production and life, from the driving devices of various equipments such as fans and pumps, to the washing machines, electric fans and air conditioners commonly used in households. The motors are widely used in industry, agriculture, transportation, municipalities and home appliances. And other fields.
According to statistics, in 2015, China's motor ownership was about 2.4 billion kilowatts, and the total power consumption was about 3.5 trillion kilowatt hours, accounting for 65% of the total electricity consumption of the whole society.
Through energy efficiency improvement, China's motor system efficiency can be increased by 5 to 8 percentage points as a whole, and annual energy saving of 130 billion to 230 billion kWh can be achieved, equivalent to the annual power generation of two to three Three Gorges power stations.
Few people know that a motor that is not eye-catching consumes more than half of the country's electricity. High-efficiency motors are one of the most effective ways to save electricity. Promoting high-efficiency motors has become a major event in China's economic transformation, energy conservation and emission reduction, and even smog control.
“The electricity bill has been significantly reduced.” This is a significant change after Guangdong Nengqiang Ceramics Co., Ltd. adopted high-efficiency energy-saving motors. “Ceramics are high-energy-consuming industries, and electricity costs account for a higher share of total costs.” The company’s official said that after the company’s high-efficiency motors were used in ceramic ball mills, the power-saving rate reached 18%, according to the average value of industrial electricity. Calculated at 0.8 yuan / kWh, the annual cost savings of 64,624 yuan, more than 1 year can recover the cost of investment transformation.
In fact, the motor is not far away from our production and life. It is large enough to drive devices such as fans, pumps, compressors, etc., to small household washing machines, electric fans, air conditioners, etc. The motors are widely used in industry and agriculture. In many fields such as transportation, municipal administration, and home appliances, motors must be used wherever electrical energy needs to be converted into mechanical energy or mechanical energy is converted into electrical energy.
Because of its wide range of applications, motors have become the most power-hungry terminal devices. According to estimates, in 2015, China's motor ownership was about 2.4 billion kilowatts, and the total power consumption was about 3.5 trillion kWh, accounting for 65% of the total electricity consumption of the whole society. The total electricity consumption of the industrial sector was 2.9 trillion kilowatts. At the time, it accounts for 74% of industrial electricity consumption, and industrial motor power consumption accounts for 52% of the total electricity consumption of the whole society.
In recent years, with the support of national policies, China's motor energy efficiency level has gradually increased, but the overall energy efficiency level is still low. From the perspective of the motor itself, the average level of motor efficiency in China is 3 to 5 percentage points lower than that of foreign countries. The high-efficiency motor currently used only accounts for about 8%. From the perspective of the motor system, due to unreasonable matching and backward adjustment, the motor system The operating efficiency is 10 to 20 percentage points lower than the foreign advanced level, and the heavy use of low-efficiency motors causes huge waste of electricity. For every 1 percentage point increase in energy efficiency of the industrial sector, it can save about 26 billion kWh of electricity per year.
Xu Dianguo, vice president of Harbin Institute of Technology, said that through the improvement of energy efficiency, the efficiency of China's motor system can be improved by 5 to 8 percentage points as a whole, and the annual energy saving can reach 130 billion to 230 billion kWh, equivalent to 2 to 3 Three Gorges power stations. Annual power generation.