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基于零控脱靶量的卫星末端追逃控制方法 被引量:5
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作者 王强 叶东 +1 位作者 范宁军 吴炎烜 《北京理工大学学报》 EI CAS CSCD 北大核心 2016年第11期1171-1176,共6页
针对拦截卫星和目标航天器都可以采用幅值受限连续推力进行轨道机动时的卫星末端拦截控制问题,由于对抗双方都会采用对自己有利的控制策略来实现追击和逃逸,因此将该问题可以看作追踪逃逸问题.由于两卫星距离较近,因此将非线性拦截逃逸... 针对拦截卫星和目标航天器都可以采用幅值受限连续推力进行轨道机动时的卫星末端拦截控制问题,由于对抗双方都会采用对自己有利的控制策略来实现追击和逃逸,因此将该问题可以看作追踪逃逸问题.由于两卫星距离较近,因此将非线性拦截逃逸相对动力学简化为CW方程.根据拦截任务终止要求引入零控脱靶矢量将动力学方程降阶,采用拦截脱靶量和燃料消耗作为二次最优目标函数,推导了卫星轨道次优控制策略.仿真表明该控制方法可以在目标卫星具有机动逃逸能力时仍能成功将其拦截. 展开更多
关键词 卫星追逃 连续推力 零控脱靶量 燃料子优控制
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Particle Swarm Optimization based predictive control of Proton Exchange Membrane Fuel Cell (PEMFC) 被引量:6
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作者 任远 曹广益 朱新坚 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第3期458-462,共5页
Proton Exchange Membrane Fuel Cells (PEMFCs) are the main focus of their current development as power sources because they are capable of higher power density and faster start-up than other fuel cells. The humidificat... Proton Exchange Membrane Fuel Cells (PEMFCs) are the main focus of their current development as power sources because they are capable of higher power density and faster start-up than other fuel cells. The humidification system and output performance of PEMFC stack are briefly analyzed. Predictive control of PEMFC based on Support Vector Regression Machine (SVRM) is presented and the SVRM is constructed. The processing plant is modelled on SVRM and the predictive control law is obtained by using Particle Swarm Optimization (PSO). The simulation and the results showed that the SVRM and the PSO re-ceding optimization applied to the PEMFC predictive control yielded good performance. 展开更多
关键词 Support Vector Regression Machine (SVRM) Proton Exchange Membrane Fuel Cell (PEMFC) Particle Swarm Optimization (PSO) Predictive control
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