计算机工程与设计
計算機工程與設計
계산궤공정여설계
COMPUTER ENGINEERING AND DESIGN
2010年
9期
2020-2022
,共3页
赵导%齐晓慧%田庆民%任红伟%甄云卉
趙導%齊曉慧%田慶民%任紅偉%甄雲卉
조도%제효혜%전경민%임홍위%견운훼
故障诊断%模拟电路%电路仿真%神经网络%诊断方法
故障診斷%模擬電路%電路倣真%神經網絡%診斷方法
고장진단%모의전로%전로방진%신경망락%진단방법
faults diagnosis%analog circuit%circuit simulation%neural network%diagnosis method
针对某些模拟电路的历史故障信息,专家知识及其诊断经验难以获取的状况,提出了一种基于仿真数据的神经网络故障诊断方法.通过使用PSpice电路仿真软件模拟实际电路,生成训练样本训练神经网络,从而建立了电路的输出响应与电路中元件实际值之间的映射.以电路的输出响应和技术指标为判断依据,诊断电路的当前状态,定位故障元件及其偏差.最后以带通滤波器电路为例,对整个过程进行了仿真试验,验证了方法的可行性.
針對某些模擬電路的歷史故障信息,專傢知識及其診斷經驗難以穫取的狀況,提齣瞭一種基于倣真數據的神經網絡故障診斷方法.通過使用PSpice電路倣真軟件模擬實際電路,生成訓練樣本訓練神經網絡,從而建立瞭電路的輸齣響應與電路中元件實際值之間的映射.以電路的輸齣響應和技術指標為判斷依據,診斷電路的噹前狀態,定位故障元件及其偏差.最後以帶通濾波器電路為例,對整箇過程進行瞭倣真試驗,驗證瞭方法的可行性.
침대모사모의전로적역사고장신식,전가지식급기진단경험난이획취적상황,제출료일충기우방진수거적신경망락고장진단방법.통과사용PSpice전로방진연건모의실제전로,생성훈련양본훈련신경망락,종이건립료전로적수출향응여전로중원건실제치지간적영사.이전로적수출향응화기술지표위판단의거,진단전로적당전상태,정위고장원건급기편차.최후이대통려파기전로위례,대정개과정진행료방진시험,험증료방법적가행성.
For some analog circuits,the information of faults history and expert knowledge is not easy to be obtained.Considering this status,a neural network method for faults diagnosis based on simulation data is proposed.PSpice is used to simulate real circuit and generate training samples to train the neural network.Thus,the output of the circuit is mapped the actual value of components in the circuit.Making the output and the index of the circuit as judgement standard to diagnosis the present state of circuit,locating fault component and its deviation.A band-pass filter circuit is taken as the example and the feasibility of method is verified.
