基于双重Rollout算法的多工作模式系统诊断策略优化
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摘要
实际多工作模式系统测试与诊断过程中单一工作模式下测试不能检测和隔离全部故障,不同工作模式下测试检测和隔离故障的代价和效率也不同,为以最小的代价实现多工作模式系统的故障隔离与定位,提出基于双重Rollout算法的诊断策略优化方法.在构建指定工作模式下的完整诊断策略时,首先采用第1重Rollout算法,得到该工作模式下的局部诊断策略和故障模糊集;针对该工作模式下无法隔离的模糊集,采用第2重Rollout算法从剩余工作模式中选择切换至最优工作模式下进行隔离,得到新的局部诊断策略和新的模糊集;依次类推,直到故障模糊集为空或已满足系统隔离要求.实例分析结果表明,与现有算法相比,所提出方法得到的解更接近最优解,期望测试费用更低.
The equipment system in practice has a variety of operating modes. In fault isolation and localization of multi-mode systems, faults cannot be detected and isolated in a single operating mode, and the cost and the efficiency for detecting and isolating faults are also different in different operating modes. In order to minimize the failure isolation cost of multi-operating mode systems, a diagnosis strategy optimization method for multi-operation modes based on the double rollout algorithm is proposed. Firstly, the first round of the rollout algorithm is adopted to construct the diagnosis strategy under the specific operating mode based on available tests, and the fuzzy set is obtained, based on which the second round of the rollout algorithm is used to select the optimal operating mode. The corresponding fuzzy set is obtained. Repeat these steps until the diagnostic strategy meets isolation requirements. The result of the example shows that the solution obtained by the proposed method is closer to the optimal solution than the existing algorithms, and the expected test cost is lower.
The equipment system in practice has a variety of operating modes. In fault isolation and localization of multi-mode systems, faults cannot be detected and isolated in a single operating mode, and the cost and the efficiency for detecting and isolating faults are also different in different operating modes. In order to minimize the failure isolation cost of multi-operating mode systems, a diagnosis strategy optimization method for multi-operation modes based on the double rollout algorithm is proposed. Firstly, the first round of the rollout algorithm is adopted to construct the diagnosis strategy under the specific operating mode based on available tests, and the fuzzy set is obtained, based on which the second round of the rollout algorithm is used to select the optimal operating mode. The corresponding fuzzy set is obtained. Repeat these steps until the diagnostic strategy meets isolation requirements. The result of the example shows that the solution obtained by the proposed method is closer to the optimal solution than the existing algorithms, and the expected test cost is lower.
引文
[1]国防科学技术工业委员会. GJB2547A-2012装备测试性通用要求[S].北京:国防科工委军标出版社, 2012.(National Defense Science and Technology Commission.GJB2547A-2012 Equipment testing general requirements[S]. Beijing:National Defense Science and Technology Commission Military Publishing House,2012.)
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[4] Raghavan V. Algorithms for sequential fault diagnosis[D]. Mansfield:Department of Electrical and Systems Engineering, University of Connecticut,1996:78-82.
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[7] Tu F, Pattipati K R. Rollout Strategies for sequential fault diagnosis[J]. IEEE Trans on Systems, Man, and Cybernetics-Part A:Systems and humans, 2003, 33(1):86-99.
[8]黄以锋,景博,罗炳海,等.基于Rollout算法的序贯多故障诊断策略[J].控制与决策, 2015, 30(3):572-576.(Huang Y F, Jing B, Luo B H, et al. Sequential multiple fault diagnosis based on rollout algorithm[J]. Control and Decision, 2015, 30(3):572-576.)
[9]刘远宏,刘建敏,冯辅周,等.基于Rollout信息启发式算法的故障诊断策略[J].计算机工程, 2015, 40(8):291-295.(Liu Y H, Liu J M, Feng F Z, et al. Fault diagnosis strategy based on rollout information heuristic algorithm[J].Computer Engineering, 2015, 40(8):291-295.)
[10]杨鹏,邱静,刘冠军.基于多值测试的诊断策略优化生成[J].仪器仪表学报, 2008, 29(8):1675-1678.(Yang P, Qiu J, Liu G J. Optimized diagnostic strategy generation with multi-valued tests[J]. Chinese J of Scientific Instrument, 2008, 29(8):1675-1678.)
[11] Zhang S G, Hu Z, Wen X S. Test sequencing problem arising at the design stage for reducing life cycle cost[J].Chinese J of Aeronautics, 2013, 26(4):1000-1007.
[12]薛鹏.多模式相控阵雷达系统中的时序控制与信号处理程序设计[D].南京:南京理工大学电子工程与光电学院, 2016:1-5.(Xue P. Timing control and signal processing program design in multi-mode phased array radar system[D].Nanjing:School of Elctronic and Optical Engineering,University of Science and Technology, 2016:1-5.)
[13]熊小玲.多工作模式独立新能源发电系统分岔行为的研究[D].南京:南京航空航天大学自动化学院, 2015:4-8.(Xiong X L. Research on bifurcation behavior of multi-mode independent new energy power generation system[D]. Nanjing:School of Automation Engineering,Nanjing University of Aeronautics and Astronautics,2015:4-8.)
[14]宋冬利.多状态多模式受电弓机械系统混合可靠性模型研究[D].成都:西南交通大学数学学院, 2012:3-8.(Song D L. The mixture reliability model of pantograph mechanical system in a life cycle[D]. Chengdu:School of Mathematics, Southwest Jiaotong University, 2012:3-8.)
[15]杨鹏.基于相关性模型的诊断策略优化设计技术[D].长沙:国防科学技术大学, 2008:98-107.(Yang P. Optimization technology of design for diagnostic strategy based dependency model on dependency model[D]. Changsha:National University of Defense Technology, 2008:98-107.)
[2]邱静,刘冠军,杨鹏,等.装备测试性建模与设计技术[M].北京:科学出版社, 2012:297-305.(Qiu J, Liu G J, Yang P, et al. Equipment testability modeling and design technology[M]. Beijing:Science Press, 2012:297-305.)
[3] Mojdeh Shakeri. Advances in system fault modeling and diagnosis[D]. Mansfield:Department of Electrical and Systems Engineering, University of Connecticut, 1996:147-155.
[4] Raghavan V. Algorithms for sequential fault diagnosis[D]. Mansfield:Department of Electrical and Systems Engineering, University of Connecticut,1996:78-82.
[5] Pattipati K R, Alexandridis M G. Application of heuristic search and information theory to sequential fault diagnosis[J]. IEEE Trans on Systems, Man, and Cybernetics, 1990, 20(4):872-887.
[6] Shakeri M, Pattpati K R, Raghavan V, et al.Near-optimal sequential testing algorithms for multiple fault isolation[C]. IEEE Int Conf on Systems, Man,and Cybernetics. Washington D C:IEEE Press, 1994:1908-1914.
[7] Tu F, Pattipati K R. Rollout Strategies for sequential fault diagnosis[J]. IEEE Trans on Systems, Man, and Cybernetics-Part A:Systems and humans, 2003, 33(1):86-99.
[8]黄以锋,景博,罗炳海,等.基于Rollout算法的序贯多故障诊断策略[J].控制与决策, 2015, 30(3):572-576.(Huang Y F, Jing B, Luo B H, et al. Sequential multiple fault diagnosis based on rollout algorithm[J]. Control and Decision, 2015, 30(3):572-576.)
[9]刘远宏,刘建敏,冯辅周,等.基于Rollout信息启发式算法的故障诊断策略[J].计算机工程, 2015, 40(8):291-295.(Liu Y H, Liu J M, Feng F Z, et al. Fault diagnosis strategy based on rollout information heuristic algorithm[J].Computer Engineering, 2015, 40(8):291-295.)
[10]杨鹏,邱静,刘冠军.基于多值测试的诊断策略优化生成[J].仪器仪表学报, 2008, 29(8):1675-1678.(Yang P, Qiu J, Liu G J. Optimized diagnostic strategy generation with multi-valued tests[J]. Chinese J of Scientific Instrument, 2008, 29(8):1675-1678.)
[11] Zhang S G, Hu Z, Wen X S. Test sequencing problem arising at the design stage for reducing life cycle cost[J].Chinese J of Aeronautics, 2013, 26(4):1000-1007.
[12]薛鹏.多模式相控阵雷达系统中的时序控制与信号处理程序设计[D].南京:南京理工大学电子工程与光电学院, 2016:1-5.(Xue P. Timing control and signal processing program design in multi-mode phased array radar system[D].Nanjing:School of Elctronic and Optical Engineering,University of Science and Technology, 2016:1-5.)
[13]熊小玲.多工作模式独立新能源发电系统分岔行为的研究[D].南京:南京航空航天大学自动化学院, 2015:4-8.(Xiong X L. Research on bifurcation behavior of multi-mode independent new energy power generation system[D]. Nanjing:School of Automation Engineering,Nanjing University of Aeronautics and Astronautics,2015:4-8.)
[14]宋冬利.多状态多模式受电弓机械系统混合可靠性模型研究[D].成都:西南交通大学数学学院, 2012:3-8.(Song D L. The mixture reliability model of pantograph mechanical system in a life cycle[D]. Chengdu:School of Mathematics, Southwest Jiaotong University, 2012:3-8.)
[15]杨鹏.基于相关性模型的诊断策略优化设计技术[D].长沙:国防科学技术大学, 2008:98-107.(Yang P. Optimization technology of design for diagnostic strategy based dependency model on dependency model[D]. Changsha:National University of Defense Technology, 2008:98-107.)