补偿脉冲发电机放电波形优化方法

陶雪峰; 刘昆

doi:10.11884/HPLPB201830.170325

补偿脉冲发电机放电波形优化方法

doi: 10.11884/HPLPB201830.170325

陶雪峰^1,,
刘昆²

1.
航天工程大学研究生院, 北京 101400
2.
国防科技大学空天科学学院, 长沙 410073

基金项目: 国家高技术发展计划项目

详细信息

作者简介:
陶雪峰(1992－)，男，硕士，从事惯性储能脉冲功率技术研究；taoxuefeng11@sina.cn

中图分类号: TM301
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出版历程
- 收稿日期: 2017-12-25
- 修回日期: 2018-02-20
- 刊出日期: 2018-09-15

Pulse shaping method for compulsator

Tao Xuefeng^1
,,
Liu Kun²

1.
Department of Graduate Management, Space Engineering University, Beijing 101400, China
2.
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China

摘要

摘要: 基于一台两相四极空心补偿脉冲发电机，研究了多相脉冲电机放电波形调节的最优化问题。对补偿脉冲发电机的三种典型负载：电磁轨道炮、脉冲激光器和电热化学炮的基本特性进行了阐述，针对这三种负载分别提出了相应的优化指标，分析了量化脉冲波形对负载的适用程度，并将波形优化问题转化为函数优化问题。在建立了脉冲电机放电数学模型的基础上，使用差分进化算法对优化问题进行求解，找到最优点火角组合。对电磁轨道炮，优化指标为弹丸加速度比。将加速度比的概念进行拓展，可得到适用于脉冲激光器的尖顶脉冲。对电热化学炮，提出了“形状方差”的概念，消除了电流幅值的影响，能够较好地衡量脉冲形状的适用性。仿真结果表明，提出的脉冲波形优化指标是有效的，在智能优化算法的帮助下，能够通过控制量的组合得到不同类型负载的最优波形。
- 补偿脉冲发电机 /
- 脉冲波形调节 /
- 优化算法 /
- 负载特性 /
- 点火角
Abstract: Based on a two-phase four-poles air-core compulsator, the discharge pulse shape optimization problem is studied. The characteristics of three typical kinds of loads for compulsator: electromagnetic rail guns, flashlamps and electro-thermal chemical guns are analyzed, whose requirements for pulse shape are significantly different. Optimization indexes are proposed for different loads to quantify the fitness of discharge pulse, transferring the pulse shaping problem into function optimization problem. For electromagnetic rail guns, the optimization index is the "acceleration ratio" of the projectile, which is the ratio of maximum acceleration and average acceleration during launch process. The larger acceleration ratio is, the flatter the waveform is. By expanding the concept of acceleration ratio, this index can be applied on flashlamps. For electro-thermal chemical guns, the concept of "shape variance" is proposed to measure the pulse shape. Simulation results show that the proposed optimization indexes are effective. With the help of intelligent optimization algorithm, we can get the optimized discharge pulse for different loads. Simultaneously, it is verified that the two-phase compulsator has strong flexibility in waveform adjustment.
- compulsator /
- pulse shaping technique /
- optimization algorithm /
- load characteristic /
- firing angle

HTML全文

图 1 补偿脉冲发电机剖面图

Figure 1. Cross section of compulsator

下载: 全尺寸图片幻灯片

图 2 自励磁及放电等效电路图

Figure 2. The equivalent circuit of excitation and discharge process

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图 3 电磁轨道炮优化放电波形

Figure 3. Optimized discharge pulse for EM gun

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图 4 脉冲激光器优化放电波形

Figure 4. Optimized discharge pulse for flashlamp

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图 5 电热化学炮优化放电波形

Figure 5. Optimized discharge pulse for ETC

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图 6 需求电流与实际电流对比

Figure 6. Comparison of desired and actual current

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表 1 仿真参数设置

Table 1. Simulation parameters

initial rotor speed/(r·min^-1)	initial field current/kA	rotor’s moment of inertia/(kg·m²)	mass of projectile/g	inductance gradient/(μH·m^-1)	resistance gradient/(mΩ·m^-1)	discharge period
18 000	8	0.177 5	5	1	0.5	1

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参考文献(15)

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