English
The speed regulation and control of electric motors are one of the fundamental technologies for various types of machinery in industry and agriculture, as well as office and household electrical equipment. With the amazing development of power electronics technology and microelectronics technology, the use of "dedicated variable frequency induction motor+frequency converter" AC speed regulation method is leading a revolution in the field of speed regulation that replaces traditional speed regulation methods with its excellent performance and economy. The good news it brings to various industries lies in greatly improving the degree of mechanical automation and production efficiency, saving energy, improving product qualification rate and quality, correspondingly increasing power system capacity, miniaturizing equipment, and increasing comfort. It is rapidly replacing traditional mechanical speed regulation and DC speed regulation solutions.
Due to the particularity of variable frequency power supplies and the system's requirements for high-speed or low-speed operation, dynamic response to speed, etc., strict requirements have been put forward for the electric motor as the main power source, which has brought new challenges to the motor in terms of electromagnetic, structural, and insulation aspects.
