The improvement of motor efficiency has become one of the industries with the greatest energy saving potential. International governments and organizations have studied energy-saving solutions for various motor systems in different application fields and different industrial sectors, formulated energy-saving guidelines, standards, regulations, and developed related green energy-saving products.
In order to comprehensively improve the energy efficiency of the motor, the Ministry of Industry and Information Technology began a three-year "Electrical Energy Efficiency Improvement Plan" nationwide in 2012. Under the strong promotion of national policies, the overall energy efficiency level of China's small and medium-sized three-phase asynchronous motors has been greatly improved, but there is still a certain gap between the current energy efficiency and the requirements of the state. In the future, China still needs to intensify efforts to promote high-efficiency motors, eliminate the use of inefficient motors, develop high-efficiency remanufacturing of electric motors, and comprehensively promote the development of high-efficiency, high-reliability, lightweight, and miniaturized motor products, and further promote energy-saving work. .
The main direction of energy-saving technology in the future
(1) High efficiency
The improvement of motor efficiency has become one of the industries with the greatest energy saving potential. International governments and organizations have studied energy-saving solutions for various motor systems in different application fields and different industrial sectors, formulated energy-saving guidelines, standards, regulations, and developed related green energy-saving products, such as: IEC unified global motor energy efficiency And test method standards: European Union's EuroDEEM, US MMASTER and other motor system energy-saving platforms; EU's ecological design plan. China has been actively promoting and supporting the development and implementation of high-efficiency motor and motor system energy-saving projects. Researches on high-efficiency and ultra-efficient small and medium-sized motors, special-purpose motors for speed control, energy-saving control products for motor systems, and green energy-saving technologies for motors and systems have become the development trend.
(2) High reliability
Reliability has always been an important consideration for users to choose a motor. The longer life of the motor and the more compact structure are the embodiment of high reliability. The long life of the motor has a very large relationship with the temperature rise, which improves the efficiency of the motor and reduces the temperature rise, which can effectively extend the service life of the motor. The motor structure of the direct drive system is more compact, achieving the highest dynamic performance, accuracy and cost effectiveness. The elimination of mechanical transmission components, such as reducers and belts, simplifies mechanical design, significantly increases usability and reduces operating costs.
(3) Lightweight and miniaturized
The weight reduction and miniaturization of the motor can effectively save materials and save space, and are increasingly favored by users. Many products also place high demands on the size and weight of the motor, which is more obvious in petroleum, chemical, coal and other application fields. In order to achieve the goal of light weight and miniaturization, advanced technology and high-quality materials are adopted in the design process, and the design principle is optimized. Under the condition of effective materials, the weight of unit power is continuously reduced, which is the future development trend.
