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基于假说的快速故障分析算法应用报告
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作者 王亮 《电子质量》 2022年第2期13-19,共7页
基于故障假说的分析算法能够进行一些初步的保护动作行为分析和开关动作行为正确性评价,辅助相关人员进行进一步的故障排查。这种算法将故障相关的模拟量和数字量作为输入,依据一定的故障分析原理,计算出保护动作的期望状态和开关动作... 基于故障假说的分析算法能够进行一些初步的保护动作行为分析和开关动作行为正确性评价,辅助相关人员进行进一步的故障排查。这种算法将故障相关的模拟量和数字量作为输入,依据一定的故障分析原理,计算出保护动作的期望状态和开关动作的期望状态,并与实际的动作状态进行比较,从而选出最符合实际情况的一个假说就作为故障诊断的结果。 展开更多
关键词 基于故障假说的分析算法 最优假说的搜索 智能告警 矛盾假说 快速故障分析系统
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Short-circuit fault analysis and isolation strategy for matrix converters
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作者 王莉娜 L.De Lillo +2 位作者 C.Brunson L.Empringham P.Wheeler 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第9期3458-3470,共13页
The behavior of matrix converter(MC) drive systems under the condition of MC short-circuit faults is comprehensively investigated. Two isolation strategies using semiconductors and high speed fuses(HSFs) for MC short-... The behavior of matrix converter(MC) drive systems under the condition of MC short-circuit faults is comprehensively investigated. Two isolation strategies using semiconductors and high speed fuses(HSFs) for MC short-circuit faults are examined and their performances are compared. The behavior of MC drive systems during the fuse action time under different operating conditions is explored. The feasibility of fault-tolerant operation during the fuse action time is also studied. The basic selection laws for the HSFs and the requirements for the passive components of the MC drive system from the point view of short-circuit faults are also discussed. Simulation results are used to demonstrate the feasibility of the proposed isolation strategies. 展开更多
关键词 matrix converter short-circuit fault fault analysis fault behavior fault isolation
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