Design and Simulation for the Pulse High-Voltage DC Power Supply (HVPS) of 1.2 MW/2.45 GHz HT-7U Lower Hybrid Current Drive System

The superconducting tokamak HT-7U [1] has been designed by the Institute of Plasma Physics since 1998 and will be set up before 2003. The 1.2 MW /2.45 GHz HT-7U LHCD (Lower hybrid current drive) system which being the most efficient non-induction device can heat the plasma and drive the plasma current has been efficiently in operation 'owl and a particular design of the 2.8 MW/-35 kV high-voltage DC power supply has been already completed and will apply to the klystron of LHCD on HT-7 and the future HT-7U, and the project of the power supply has been examined and approved professionally by an authorized group of high-level specialist in the institute of Plasma Physics. The detailed design of the power supply and the simulation results are referred in the paper.

100kHz逆变调制型连续／脉冲气体激光电源

应用高频逆变和调制脉冲技术在升压变压器的低压端实现连续／脉冲转换工作方式，研制出一台１００ｋＨｚ逆变调制连续／脉冲气体激光电源，该电源在升压变压器次级端去掉滤波高压电容和限流电阻的条件下能长期稳定工作，并具有抗网路波动强、调节范围宽、转换效率高、适应性强以及体积小、重量轻等优点。

脉冲电源双馈调速系统的仿真研究

国家脉冲强磁场科学中心(筹)从美国引进的100 MW脉冲发电机电源系统的绕线式异步电动机的额定频率为60 Hz,同步转速为720 r/min,但当其供电频率为50 Hz时,其额定转速达不到其设计值,导致与电动机转子同轴的发电机飞轮的储能也达不到设计值185 MJ。针对该问题,设计了一套双闭环解耦控制的双馈调速方案,使得该电动机能够稳定运行于转速为720 r/min的超同步工况。用MATLAB/Simulink传真平台建立100MW脉冲电源系统电动机的超同步双馈调速系统的模型,并结合相关实际参数,针对超同步运行状况进行仿真。仿真结果证明了该双馈调速系统设置的正确性。