25kV高压可调直流发生器的研制与仿真实验

Development and Simulation of 25 k V High Voltage Adjustable DC Generator

为研究直流高压发生器对镁铝材料晶粒细化的作用机理,文中对传统直流高压发生器体积大、工作稳定性差、电压不可调等不足进行改进,设计了一种25 k V可调高压直流发生器。所设计的可调直流高压发生器采用了线性稳压技术和倍压整流技术,能产生范围宽、稳定性高的电压输出,使其具有较强的通用性、安全性、经济性。通过实验与仿真分析,在0.1 ms时间内,直流可调高压发生器最大输出功率为12.5 W,通过分压器输出稳定幅值为25.2 k V的直流高压,且输出电压可调范围为14.2~25.2 k V,表明直流可调高压发生器可满足设计要求。

A 25 k V adjustable DC generators is designed to study the effect of the DC high voltage generator on Mg-Al material refinement with improvement on the traditional DC high voltage generator that has large volume,poor work stability,and fixed voltage. The adjustable DC high voltage generator of the designing adopts the technology of linear regulator and voltage doubling rectifier technology; it produces the output voltage of the wide range and high stability. The generator has strong versatility,safety and economy. The analysis of the experimental and simulation show that the adjustable DC high voltage generator exhibits a maximum output power of 12. 5 W and a stable amplitude for DC high voltage of 25. 2 k V through the divider in 0. 1 ms time with the an adjustable range of output voltage of 14. 2 ~25. 2 k V. The experiment shows that the adjustable DC high voltage generator meets the design requirements.