The YTPS series variable frequency speed control three-phase asynchronous motor is composed of a universal stepless speed regulation system and a frequency converter.Compared with other stepless speed regulation methods,It has the characteristics of wide speed range, reliable operation, low maintenance cost, small volume, high efficiency, power-saved and high speed adjustment precision,and can realize closed-loop control of speed and torque,it is the ideal power source of stepless speed regulating equipment in textile, chemical, metallurgical, coal, light industry, machinery manufacturing and other industries.