回馈状态 meaning in Chinese

regenerating condition

First in this paper , the characteristics and control methods of bldcm is discussed . on the basis of the run state and control method of the bldcm , combining the electric power and electronic technology , micro electric technology , special integrated chips and the theory of motor control theory , setting up the model of electric power inverter system by using the simulating software - matlab , the control schemes are given when the motor is working in the state of electromotion and electrical regeneration
首先本文介绍了永磁无刷直流电动机的特点及其控制方法，结合电力电子技术、微电子技术、专用集成芯片、电动机以及控制等理论，在重点研究了电动汽车用永磁无刷直流电动机的运行状态和控制方式的基础上，利用matlab仿真软件建立了电力电子逆变系统的仿真模型，给出了电机处于电动状态和能量回馈状态时的控制策略。