仪器仪表学报
儀器儀錶學報
의기의표학보
CHINESE JOURNAL OF SCIENTIFIC INSTRUMENT
2014年
8期
1751-1757
,共7页
张朝龙%何怡刚%邓芳明%袁莉芬%何威
張朝龍%何怡剛%鄧芳明%袁莉芬%何威
장조룡%하이강%산방명%원리분%하위
模拟电路%剩余有用寿命%健康度%皮尔逊相关系数%相关向量机%量子粒子群
模擬電路%剩餘有用壽命%健康度%皮爾遜相關繫數%相關嚮量機%量子粒子群
모의전로%잉여유용수명%건강도%피이손상관계수%상관향량궤%양자입자군
analog circuit%remaining useful life%health degree%Pearson product-moment correlation coefficient(PPMCC)%relevance vector machine(RVM)%quantum-behaved particle swarm optimization(QPSO)
提出了一种可应用于模拟电路故障预测的方法。通过提取被测电路的频域响应信号,计算皮尔逊相关系数,从而表征电路元件的健康度;在获取元件在不同时间点的健康度数据的基础上,推导出电路元件发生故障时的健康度阈值;将经量子粒子群算法优化的相关向量机算法用于故障预测,预测各个时间点的元件健康度变化轨迹并估计模拟电路的剩余有用寿命。该预测方法计算简单、通用性强,适用于实时预测。故障预测仿真实验与实例实验证明了方法的有效性与先进性。
提齣瞭一種可應用于模擬電路故障預測的方法。通過提取被測電路的頻域響應信號,計算皮爾遜相關繫數,從而錶徵電路元件的健康度;在穫取元件在不同時間點的健康度數據的基礎上,推導齣電路元件髮生故障時的健康度閾值;將經量子粒子群算法優化的相關嚮量機算法用于故障預測,預測各箇時間點的元件健康度變化軌跡併估計模擬電路的剩餘有用壽命。該預測方法計算簡單、通用性彊,適用于實時預測。故障預測倣真實驗與實例實驗證明瞭方法的有效性與先進性。
제출료일충가응용우모의전로고장예측적방법。통과제취피측전로적빈역향응신호,계산피이손상관계수,종이표정전로원건적건강도;재획취원건재불동시간점적건강도수거적기출상,추도출전로원건발생고장시적건강도역치;장경양자입자군산법우화적상관향량궤산법용우고장예측,예측각개시간점적원건건강도변화궤적병고계모의전로적잉여유용수명。해예측방법계산간단、통용성강,괄용우실시예측。고장예측방진실험여실례실험증명료방법적유효성여선진성。
An approach for analog circuit fault prognostics is proposed in this paper.The frequency domain response signals of the circuit under test are extracted,and the component health degree is characterized through calculating the Pearson product-moment correlation coefficient(PPMCC).The sample data of the health degree at different time are acquired and the health degree failure thresholds of the circuit components are deduced.The relevance vector machine(RVM)algorithm improved by quantum-behaved particle swarm optimiza-tion(QPSO)algorithm is utilized to predict the trend of health degree trajectory with respect to time and estimate the remaining useful life of the circuit.The proposed fault prognostics approach has the merits of simple computation and widespread applicability,and is appro-priate for real time prediction.Simulations and experiment validate the effectiveness and superiority of the proposed approach.