超同步 meaning in Chinese
hypersynchrony
oversynchronous
Examples
- Sub - synchronous super - synchronous satellite
分同步超同步卫星 - When generator runs at conversation states from synchronous speed to super - synchronous speed , the excitation current of oppositional phase sequence should ensure the current waveform smoothly transform
当发电机运行于同步速向超同步速过渡转换状态时，需向转子馈入反相序的励磁电流，且保证励磁电流的波形平滑连续。 - Just based on the two points mentioned above , a control system of doubly - fed variable speed constant frequency ( vscf ) wind power generator based on 8xc196mc is designed in this paper , which can smoothly transform between the different operational modes from sub - synchronous speed to synchronous speed and to super - synchronous speed
正是基于上述两个出发点，本文设计了一台基于8xc196mc单片机的2 . 8kw变速恒频双馈风能发电控制系统。主电路中变流器的设计可使该系统能工作于亚同步速、同步速及超同步速三种运行状态，并具有能量双向流动的特点。 - Simulations for these two conditions prove validity of theoretical analysis . on the basis of this scheme , a new speed adjustment strategy about vector control of doubly fed motor based on rotor current vector fixing is given . it introduces the closed - loop of stator excitation current to the system , which increases two adjustment channels : speed and excitation adjustment
经理论分析可知，该方案中，由于转子电流与磁链无法实现完全解耦，故仅在亚同步工况下有效，在超同步时则会因为调速系统不能自动校正转子磁链幅值变化引起的横向电流而使系统失去控制，无法达到稳定状态。 - This strategy has many advantages : solving the problems that the system is unsteady under super - synchronization ; improving power factor of stator ( it is unity relative to that of rotor ) ; no rotor position sensor and no initial position measurement , easily building up doubly fed speed adjustment system with speed sensorless because adjusting speed is taken in the rotor coordinate and rotor current vector fixing is implemented
该方案由于引入了定子电流励磁分量的闭环控制，使系统同时具有转速和励磁调节两个调节通道，具有如下优点：一、解决了超同步工作工况不稳定的问题；二、提高了定子侧的功率因数(与转子侧功率因数为1相比) 。三、由于速度调节在转子坐标系下进行，并以转子电流矢量定向，所以无须转子位置传感器，也不用检测初始位置，易于组成无速度传感器双馈调速系统。