传统家用电器与工业电气设备中大量使用单相异步电动机,电机在工作时常处于短时重复开、停状态,如空调、冰箱、普通车床等。这样势必带来启动频繁、噪声大、电机寿命短、温度稳定性差以及能耗高等一系列弊端。随着电力电子技术、微电子技术、计算机技术、传感器技术的迅速发展以及生产、生活水平的不断提高,近年来各国都在竞相开发变频产品。变频器技术的应用 Traditional household appliances and industrial electrical equipment, large-scale use of single-phase asynchronous motor, the motor often in the work of repeated short-term open and stop state, such as air conditioners, refrigerators, general lathes and so on. This will inevitably bring about a series of drawbacks such as frequent start-up, loud noise, short motor life, poor temperature stability and high energy consumption. With the rapid development of power electronics technology, microelectronics technology, computer technology and sensor technology, as well as continuous improvement of production and living standards, all countries are racing to develop frequency conversion products in recent years. Inverter technology applications