| 变推力液体火箭发动机脉宽采样数字控制 |
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| 引用本文： | 冯心,张育林,陈启智. 变推力液体火箭发动机脉宽采样数字控制[J]. 国防科技大学学报, 1993, 15(2): 41-46 |
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| 作者姓名： | 冯心 张育林 陈启智 |
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| 作者单位： | 国防科技大学航天技术系(冯心，张育林)，国防科技大学航天技术系(陈启智) |
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| 摘 要： | 本文对变推力液体火箭发动机的脉宽采样数字控制系统进行了理论分析和实验研究。文中提出了此类控制系统的时宽输入模型,讨论了系统的稳定边界和无波纹响应条件,指出了影响动静态响应的关键因素及其与一般比例反馈控制的区别,并分析了发动机试车时动态特性随工况大幅变化的原因。
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| 关 键 词： | 控制系统 液体火箭发动机 数字控制 脉宽采样数字控制 |
| 收稿时间： | 1991-12-25 |
Pulse Width Sampled-Data Control for Variable Thrust Liquid Rocket Engine |
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| Feng Xin,Zhang Yulin and Chen Qizhi. Pulse Width Sampled-Data Control for Variable Thrust Liquid Rocket Engine[J]. Journal of National University of Defense Technology, 1993, 15(2): 41-46 |
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| Authors: | Feng Xin Zhang Yulin Chen Qizhi |
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| Affiliation: | Department of Aerospace Technology |
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| Abstract: | A pulse width sampled-data control system for a variable thrust liquid rocket en-gine is studied both theoretically and experimentally. A time width input model is devel-oped for such control systems. The stability boundary and the condition for deadbeat re-sponse are discussed. The key facters influencing the transient and steady-state re-sponse and the distinctions of this system compared with common output feedback con-trol systems are stated. The causes of the response variation with thrust levels are alsoinvestigated. |
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| Keywords: | control system liquid rocket engine digital control pulse width sampled-data control |
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