应用于食品杀菌的高循环线性脉冲调制器研究  

Study on high-duty-cycle linear pulse modulator applying in food sterilization

作　　者：李艺琳[1] 李钢[1] 

机构地区：[1]哈尔滨商业大学计算机与信息工程学院,哈尔滨150076

出　　处：《哈尔滨商业大学学报（自然科学版）》2003年第4期450-452,共3页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：黑龙江省自然科学基金;项目号[C0208];黑龙江省教育厅科技项目(10531065).

摘　　要：高压脉冲电源是高压脉冲杀菌的关键部件之一,其中高压脉冲的脉冲宽度、脉冲间隔的调节问题是急待解决的问题.介绍一种应用于食品杀菌设备中的高循环脉冲调制器,其具有最大重复脉冲700pps、脉宽14μs,且能驱动5.5MW超高频调制管.闸流管要保持足够的恢复时间,就需采用充电控制系统,充电晶闸管组能控制峰值达50A充电电流,该装置最大输出功率为205kW.The high voltage pulsed power supply is a key parts of high voltage pulsed sterilization device, the regulates of pulse width and pulse interval is a problem to solution. Described high-duty-cycle linear pulse modulator applied in food sterilization device. It has been developed to drive 5.5 MW S-band klystron at 700 pps maximum repetition-rate and 14 μs flat-top pulse-width. To keep enough recovery time on thyratron-tube, adopted the command charge scheme. A charging SCR-band has development, which is capable of handing peak charging current of 50 A, and the system achieved highest average output-power of 205 kW. 

关 键 词：脉冲调节器 闸流管 重复率 

分 类 号：TM921.52[电气工程—电力电子与电力传动]