基于DSP的PFN触发时序控制系统设计及实验分析
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摘要
为了缩小电磁发射系统电源的体积并更加准确地控制放电波形,设计并制作了一种基于数字信号处理器TMS320F2812的脉冲成型网络(PFN)触发时序控制系统。该系统的电路主要由时序控制、脉冲产生、高压触发和能量续流4部分组成,并采取了抗干扰措施。系统能输出多路控制脉冲信号,且各个脉冲信号间的时延可通过上位机进行设置。给出了该PFN在各个放电时序下的放电电流仿真及实验波形图,比较发现实验波形同仿真波形几乎相同,表明所提出的触发时序控制系统具有实用性及可靠性。
In order to decrease the volume of a power resource of electromagnetic launch system and to precisely control its discharge waveform,we put forward a pulse forming networks(PFN) trigger timing control system based on digital signal processor(DCP) TMS320F2812.The main circuit was composed of four parts: timing controlling,pulse generation,high voltage trigger,and energy free-wheeling,in which anti-interference measures were taken.The system could output multiple control pulse signals,of which the delay time could be set up by computer directly.Both simulative and experimental discharge current figures of the proposed PFN are presented,and according to the comparison between the figures,the experimental discharge current waveforms were the same as their according simulative ones.Therefore,the proposed system is proved to have validity and practicability.
In order to decrease the volume of a power resource of electromagnetic launch system and to precisely control its discharge waveform,we put forward a pulse forming networks(PFN) trigger timing control system based on digital signal processor(DCP) TMS320F2812.The main circuit was composed of four parts: timing controlling,pulse generation,high voltage trigger,and energy free-wheeling,in which anti-interference measures were taken.The system could output multiple control pulse signals,of which the delay time could be set up by computer directly.Both simulative and experimental discharge current figures of the proposed PFN are presented,and according to the comparison between the figures,the experimental discharge current waveforms were the same as their according simulative ones.Therefore,the proposed system is proved to have validity and practicability.
引文
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[17]吴利红,李振超.大功率晶闸管开关的触发电路设计与研究[J].电光系统,2009,3(1):43-46.WU Lihong,LI Zhenchao.Design and research of trigger cir-cuit for high-power swich thyristor[J].Electronic and Electro-optical Systems,2009,3(1):43-46.
[18]Han Y X,Lin F C,Dai L,et al.Research on Applications of TVS and thyristor in a pulsed power supply system used for EMG[J].IEEE Transactions on Dielectrics Electrical Insula-tion,2009,16(4):979-984.
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[2]王鹏,吴广宁,罗杨,等.连续高压脉冲方波下局部放电测试系统设计[J].高电压技术,2012,38(3):587-592.WANG Peng,WU Guangning,LUO Yang,et al.Design of partial discharge testing system under continuous square pulse voltage[J].High Voltage Engineering,2012,38(3):587-592.
[3]廖敏夫,邹积岩,段雄英,等.场击穿型真空触发开关控制器设计及时延特性[J].高电压技术,2006,32(5):45-48.LIAO Minfu,ZOU Jiyan,DUAN Xiongying,et al.Delay charac-teristics and design of controller of a field-breakdown triggered vacu-um switch[J].High Voltage Engineering,2006,32(5):45-48.
[4]石晓晶,董建年.用于电磁发射试验的时序控制电路设计[J].仪器仪表学报,2004,25(4):969-970.SHI Xiaojing,DONG Jiannian.Design of firing control for ET experiment[J].Chinese Journal of Scientific Instrument,2004,25(4):969-970.
[5]薛飞,张建革.基于时序控制脉冲形成网络的电磁轨道炮仿真研究[J].电气技术,2010,10(2):16-23.XUE Fei,ZHANG Jiange.Simulation study of the elcctromag-netic rail gun based on the timing control pulse formation net-work[J].Electrical Engineering,2010,10(2):16-23.
[6]黄海,高俊山,李文龙.电磁发射器DSP控制系统的设计[J].自动化技术与应用,2007,26(3):92-95.HUANG Hai,GAO Junshan,LI Wenlong.DSP-based control of the electromagnetic launcher[J].Techniques of Automation and Applications,2007,26(3):92-95.
[7]刘克富,王少荣,钟和清,等.脉冲强磁场高功率脉冲电源系统研制[J].核技术,2008,31(11):864-868.LIU Kefu,WANG Shaorong,ZHONG Heqing,et al.A high pulsed power supply system designed for pulsed high magnetic field[J].Nuclear Techniques,2008,31(11):864-868.
[8]Han Y X,Lin F C,Dai L,et al.Analysis of electric parameters of a PPS system and their influence on muzzle velocity in electro-magnetic railguns[J].IEEE Transactions on Magnetics,2009,45(1):559-563.
[9]Liu Y,Lin F C,Dai L,et al.Development of a compact450kJ pulsed-power-supply system for electromagnetic launcher[J].IEEE Transactions on Plasma Science,2011,39(1):304-309.
[10]赵纯,邹积岩,廖敏夫,等.一种多级重接式电磁发射系统的触发电路[J].电工电能新技术,2006,25(3):77-80.ZHAO Chun,ZOU Jiyan,LIAO Minfu,et al.A trigger cir-cuit of multi-stage reconnection electromagnetic launch system[J].Advanced Technology of Electrical Engineering and Ener-gy,2006,25(3):77-80.
[11]蒋春,米彦,姚陈果,等.脉冲磁场发生器中用Braun-beck线圈的分析[J].高电压技术,2012,38(5):1150-1156.JIANG Chun,MI Yan,YAO Chenguo,et al.Analysis of Braunbeck coil for pulsed magnetic field generator[J].High Voltage Engineering,2012,38(5):1150-1156.
[12]李贞晓,杨春霞,栗保明.高功率脉冲电源中晶闸管应用的研究[J].电力电子技术,2010,44(10):87-90.LI Zhenxiao,YANG Chunxia,LI Baoming.Research on the application of thyristor in the pulsed power supply[J].Power Electronics,2010,44(10):87-90.
[13]廖瑞金,谭坚文,王华,等.基于脉冲响应的高强度聚焦超声换能器电阻抗测量方法[J].高电压技术,2012,38(6):1292-1297.LIAO Ruijin,TAN Jianwen,WANG Hua,et al.Electrical impedance measurement method based on impulse response for high intensity focused ultrasound transducer[J].High Voltage Engineering,2012,38(6):1292-1297.
[14]丛晓艳,尚雷,陆业明.PFN充电高压电源的IGBT驱动电路设计[J].高电压技术,2006,32(2):78-80.CONG Xiaoyan,SHANG Lei,LU Yeming.Design of IGBT driver in high voltage PFN charging power supply[J].High Voltage Engineering,2006,32(2):78-80.
[15]董建年,桂应春,李军,等.电磁弹射系统的脉冲功率源设计[J].高电压技术,2007,33(12):105-107.DONG Jiannian,GUI Yingchun,LI Jun,et al.Design of pulsed power supply for electromagnetic launch[J].High Voltage Engineering,2007,33(12):105-107.
[16]郝新,徐文立,张曾科,等.大功率晶闸管数字触发电路的设计[J].电气传动,2001,32(3):29-31.HAO Xin,XU Wenli,ZHANG Zengke,et al.The design of high-power SCR digital trigger circuit[J].Electric Drive,2001,32(3):29-31.
[17]吴利红,李振超.大功率晶闸管开关的触发电路设计与研究[J].电光系统,2009,3(1):43-46.WU Lihong,LI Zhenchao.Design and research of trigger cir-cuit for high-power swich thyristor[J].Electronic and Electro-optical Systems,2009,3(1):43-46.
[18]Han Y X,Lin F C,Dai L,et al.Research on Applications of TVS and thyristor in a pulsed power supply system used for EMG[J].IEEE Transactions on Dielectrics Electrical Insula-tion,2009,16(4):979-984.
[19]Warnock S D.Design and optimization of a600kJ railgun pow-er supply[D].Monterey,USA:Naval Postgraduate School,2003:41-54.
[20]Feliciano S A.The design and optimization of a power supply for a one-meter electromagnetic railgun[D].Monterey,USA:Naval Postgraduate School,2001:19-23.