水磁 meaning in English

hydromagnetic

Research into ceramic cutting with hydro - magnetically confined plasma arc
水磁综合约束等离子弧加工陶瓷方法研究
In this thesis , based on a digital signal processor tms320f240 , a controller for pmsm is researched an designed . we analyzes the mathematics model of pmsm , researchs vector control of pmsm and space vector pwm , discusses the controller of position , speed and current , designs the mrfas position controller , pid speed controller and pid current controller , sets up pmsm ac servo control system , designs dsp controller , and develop the corresponding sofeware . at last , the designed controller is simulated under matlab / simulink , and the results are gived
分析了水磁同步电机的数学模型，研究了永磁同步电机的矢量控制方法和空间矢量脉宽调制原理，讨论了位置环、速度环和电流环的控制方法，设计了模型参考模糊自适应位置控制器、 pi速度器和pi电流控制器，组建了永磁同步电机交流伺服控制系统，设计dsp控制器，并开发了相应的软件。最后在matlab simulink环境下对系统进行了动态仿真，并给出了仿真结果。