constant power operation meaning in Chinese

恒功率运行
恒马力飞行

To achieve the flux - weakening control for a pmbldcm on the base of hybrid rotor structure , the paper proposes an effective control strategy - " twain mode control " : adopting pwm method to achieve constant torque operation blow the base - speed , and regulating the phase angle of current leading emf to gain the equivalent demagnitigation of armature reaction and to achieve constant power operation above the base - speed . the control system composed by dsp + ipm realized this control strategy successfully and achieved nearly three - time flux - weakening operation speed region with constant power
本文通过大量的文献资料阅读，在对永磁无刷直流电机的发展和现状有了一个整体了解的基础上，针对复合式转子结构永磁无刷直流电机研制了一套弱磁恒功率控制系统，提出一种“双模控制”的控制策略，成功的实现了基速以下恒转矩控制，基速以上弱磁恒功率控制。