无级的 meaning in English

stepless

Electronic soft starter is a kind of novel motor control device which can implement the soft - start , soft - stop and energy - saving of the asynchronous motor . compare in the traditional motor starter , it has outstanding advantages such as stepless regulation of the motor start , avoid the inrush of the torque and the current , and reliable protections , convenient operation and starting repetitively . so the paper aim at electronic soft starter , asynchronous soft starter of electrical machinery electron as research object , study it ' s high - performance soft starting technology - torque control soft - start , develop its realization circuit
异步电动机电子软起动器是一种集电机软起动、软停机、轻载节能和多种保护功能于一体的新颖电机控制装置，相比于传统的起动器，它突出的优点体现在能够连续无级的调节电机起动、冲击转矩和冲击电流小、控制简便、起动重复性好以及体积小等方面，本文以异步电机电子软起动器为研究对象，研究高性能的电机软起动技术- - -转矩起动方式，并研制其实现电路。