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并联谐振长脉冲调制器的仿真研究

Simulation research on long pulse parallel resonant modulator

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摘要

介绍了一种基于并联谐振波形叠加技术的长脉冲调制器,该结构采用多模块进行波形叠加(并联),这样可以在纹波一定时,减小脉冲前沿,同时可以提高输出功率,单级结构采用并联谐振结构。为了稳定输出电压,且尽量减小开关损耗,采用频率和相位联合控制方式。对频率和相位联合控制、前馈稳压控制原理及谐振参数设计进行了说明,对基于上述原理的多级并联结构进行了仿真。仿真结果表明:输入直流电压在450~550 V变化时,3个变换器模块并联,谐振参数中心频率50 kHz,在5.2 kΩ负载上产生60 kV电压,上升沿约35 μs,输出电压能保持基本稳定,纹波小于4%。

Abstract

This paper presents a long-pulse modulator based on parallel resonant waveform superposition technique, which uses multiple modules (in parallel) for waveform superposition to reduce rising edge while keep a certain voltage ripple and increase the output power, with each module using a parallel resonant structure.In order to stabilize the output voltage, and to minimize switching losses, the frequency and phase combined control method is applied. Its principle, feedforward voltage control principle and design of resonant parameters are described. The simulation of three modules in parallel shows that, with the input DC voltage varying within 450 to 550 V, the structure under forward control at 50 kHz resonant frequency generates 60 kV voltage on the 5.2 kΩ load resistor, whose rising time (0 to 90%) is about 35 μs and ripple is less than 4%.

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中图分类号:TM910

DOI:10.3788/hplpb20112311.2955

所属栏目:脉冲功率源及相关技术

基金项目:中央高校基本科研业务费专项资金项目(SWJTU11BR227)

收稿日期:2011-06-29

修改稿日期:2011-09-26

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作者单位    点击查看

李伟:西南交通大学 物理科学与技术学院, 成都 610031
刘庆想:西南交通大学 物理科学与技术学院, 成都 610031
张政权:西南交通大学 物理科学与技术学院, 成都 610031
吴志鹏:西南交通大学 物理科学与技术学院, 成都 610031

联系人作者:李伟(liwei_chengdu@163.com)

备注:李伟(1987-),男,硕士研究生,从事大功率电源方向研究工作

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【2】Carastro F, Clare J C, Wheeler P W, et al. High speed thermal imaging applied to a long pulse resonant converter modulator for power device reliability assessment[C]//IEEE International Power Modulators and High Voltage Conference. 2008.

【3】Bland M J, Clare J C, Wheeler P W, et al. A high power RF power supply for high energy physics applications[C]//Particle Accelerator Conference. 2005:4018-4020.

【4】Bland M J, Clare J C, Wheeler P W, et al. A high frequency resonant power converter for high power RF applications[C]//Power Electronics and Applications. 2005:1-10.

【5】Bland M J, Clare J C, Wheeler P W, et al. A 25 kV, 250 kW multiphase resonant power converter for long pulse applications[C]//Pulsed Power Plasma Science. 2007:944.

【6】Carastro F, Clare J C, Bland M J, et al. Development and power device reliability assessment of resonant pulsed power converters for RF applications[C]//High Power RF Technologies, IET Conference. 2009.

【7】戈田一,师宇杰,邓承志.全桥并联谐振变换器特性分析[J].信息工程大学学报,2008,9(2):206-210. (Ge Tianyi,Shi Yujie, Deng Chengzhi.Analysis and simulation of full-bridge parallel resonant dual-voltage converter. Journal of Information Engineering University, 2008,9(2):206-210)

引用该论文

Li Wei,Liu Qingxiang,Zhang Zhengquan,Wu Zhipeng. Simulation research on long pulse parallel resonant modulator[J]. High Power Laser and Particle Beams, 2011, 23(11): 2955-2958

李伟,刘庆想,张政权,吴志鹏. 并联谐振长脉冲调制器的仿真研究[J]. 强激光与粒子束, 2011, 23(11): 2955-2958

被引情况

【1】燕宣余,李相强,刘庆想,王庆峰,张政权. 开关电源汇流排的场路耦合仿真分析及优化. 强激光与粒子束, 2014, 26(6): 63016--1

【2】孙鹏,李相强,刘庆想,张政权,李伟. 单相并联谐振变换器输出LC滤波器参数优化. 强激光与粒子束, 2014, 26(6): 63027--1

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