| 引用本文: | 王涛,曹晓瑞,张洪波,等.采用PWPF调节器的再入飞行器最优控制分配方法.[J].国防科技大学学报,2018,40(4):74-79.[点击复制] |
| WANG Tao,CAO Xiaorui,ZHANG Hongbo,et al.Optimal control allocation method for entry vehicle based on PWPF modulator[J].Journal of National University of Defense Technology,2018,40(4):74-79[点击复制] |
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| 采用PWPF调节器的再入飞行器最优控制分配方法 |
| 王涛1,2, 曹晓瑞3, 张洪波1, 汤国建1 |
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(1. 国防科技大学 空天科学学院， 湖南 长沙 410073;2. 中国人民解放军32032部队， 北京 100094;3. 中国运载火箭技术研究院 研究发展中心， 北京 100076)
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| 摘要: |
| 针对具有反作用控制系统（Reaction Control System, RCS）和气动舵两类控制机构的再入飞行器，提出一种基于脉宽脉频（Pulse Width Pulse Frequency, PWPF）调节器的最优控制分配方法。将RCS的输入信号转化为连续变化量，RCS与气动舵的控制分配问题被描述为二次规划问题，并采用有效集方法对其求解。采用离散法和PWPF调节器将优化结果转化为RCS的开关机状态。与混合整数规划问题相比，连续二次规划问题更容易求解，计算速度更快。通过对二次规划问题的重构，该算法能有效地应对故障情况。 |
| 关键词: 再入 控制分配 二次规划 脉宽脉频调节器 气动舵 反作用控制系统 |
| DOI：10.11887/j.cn.201804012 |
| 投稿日期：2017-06-15 |
| 基金项目:国家部委基金资助项目（61422080106） |
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| Optimal control allocation method for entry vehicle based on PWPF modulator |
| WANG Tao1,2, CAO Xiaorui3, ZHANG Hongbo1, TANG Guojian1 |
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(1. College of Aeronautics and Astronautics, National University of Defense Technology, Changsha 410073, China;2.
2. The PLA Unit 32032, Beijing 100094, China;3. Research & Development Center, China Academy of Launch Vehicle Technology, Beijing 100076, China)
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| Abstract: |
| For the entry vehicle equipped with RCS (reaction control system) and rudder, an optimal control allocation method based on PWPF (pulse width pulse-frequency) modulator was proposed. By transforming the discrete control signal of RCS into the continuous quantity, the control allocation problem was constructed as a quadratic programming problem. And the active-set method was used to solve the quadratic programming problem. Then, the on-off signal of RCS was obtained by using the discrete method and PWPF modulator. Compared with the mixed integer programming problem, the quadratic programming problem is easier to be solved, which is favorable for on-board computing. The proposed method has the fault-tolerant ability by reconstituting the quadratic programming problem. |
| Keywords: entry control allocation quadratic program pulse-width pulse-frequency modulator rudder reaction control system |
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