摘要
设计了一台两相四极空心补偿脉冲发电机,对其基本电磁特性进行了分析。采用无补偿形式,简化了电机结构设计,增加了电机可靠性和脉冲电流通用性。以电磁轨道炮为负载,综合考虑电流耦合、转子转速变化和负载阻感变化,建立了放电过程的数学模型。与SimplorerMaxwell软件联合仿真结果进行对比,验证了数学模型的准确性。以弹丸加速比为目标函数,使用差分进化算法对点火角和串联电感大小进行优化,得到了最优脉冲波形。数学模型与智能优化算法结合,为波形调节的最优化问题提供了有效解决方案。
A two-phase four-pole air-core compulsator is designed and its basic electromagnetic characteristics are analyzed.The absence of specific compensation components simplifies the compulsator structure design and increases the reliability and pulse current versatility.Considering the current coupling,the rotor speed change and the variable load resistance characteristics,the mathematical model of the discharge process for driving electromagnetic guns is established.The accuracy of the mathematical model is verified by the co-simulation result of finite element softwares Simplorer and Maxwell.Taking the projectile acceleration ratio as objective function,the differential evolution algorithm is used to optimize the firing angle and the value of series inductor;thereby the optimal pulse waveform is obtained.The combination of mathematical model and intelligent optimization algorithm provides an effective way for the optimization of waveform adjustment.
作者
陶雪峰
刘昆
Tao Xuefeng;Liu Kun(College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2018年第9期1931-1937,共7页
Transactions of China Electrotechnical Society
基金
国家高技术研究发展计划(863计划)项目资助(2015AA8091004B)
关键词
空心补偿脉冲发电机
放电数学模型
电磁轨道炮
脉冲波形调节
优化算法
Air-core Compulsator
discharge mathematical model
electromagnetic gun
pulse shaping techniques
optimization algorithm
