The actual frequency technology is the use of motor control theory, through the so-called inverter, the motor control . Called for such motor control inverter motor .
Motor speed and control, all types of industrial and agricultural machinery and office is one of the basic technology livelihood electrical equipment. With the power electronics technology , amazing development of microelectronics technology , the use of " special frequency induction motor + inverter " AC speed control, is its excellent performance and economy , the governor field , led a replace traditional replacement changes the way the governor . It brought the Gospel to all walks of life lies : the mechanical automation and production efficiency greatly improved , energy conservation , improve product quality and product qualification rate , a corresponding increase in the power system capacity , equipment miniaturization, increased comfort, now with soon replace the traditional mechanical speed governor and DC speed control programs .
Due to the special nature of variable frequency power supply , and system speed or low speed , dynamic response , such as the need for speed , the main driving force of the motor as proposed demanding, to bring in an electromagnetic motor , structure, insulation all aspects of new issues .