基于风量特征的矿井通风系统阻变型单故障源诊断

将矿井发生巷道冒落变形、风门开关或者破损、风机性能下降、巷道延伸及报废、矿车运行、罐笼提升、煤仓放空等变化引起通风系统风量发生异常变化的现象称为阻变型故障,根据风量传感器感知的风量变化确定通风系统发生阻变型故障的网络拓扑位置及其等效风阻,对矿井通风安全智能化管理,提高通风系统的安全保障能力意义重大。通风网络具有较好的自适应性及鲁棒性,利用矿井通风仿真系统MVSS生成训练样本,分别构建了基于SVM的分类器和回归器对故障位置和等效风阻进行诊断。仅以风量为特征的通风系统SVM分类与回归问题是一个不适定问题,研究表明诊断的准确性与传感器的个数及布置位置的分散程度有关,与传感器所在巷道的网络拓扑灵敏度以...

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Bibliographic Details
Published in煤炭学报 Vol. 43; no. 1; pp. 143 - 149
Main Author 刘剑;郭欣;邓立军;蒋清华;高科;赵丹
Format Journal Article
LanguageChinese
Published 辽宁工程技术大学 矿山热动力灾害与防治教育部重点实验室,辽宁 葫芦岛 125105 2018
辽宁工程技术大学 安全科学与工程学院,辽宁 葫芦岛 125105
Subjects
矿井通风;阻变型故障;故障诊断;支持向量机;等效风阻
支持向量机
阻变型故障
fault diagnosis
故障诊断
resistance variant fault
equivalent wind resistance
等效风阻
mine ventilation
Support Vector Machines
矿井通风
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ISSN0253-9993
DOI10.13225/j.cnki.jccs.2017.1693

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Summary:将矿井发生巷道冒落变形、风门开关或者破损、风机性能下降、巷道延伸及报废、矿车运行、罐笼提升、煤仓放空等变化引起通风系统风量发生异常变化的现象称为阻变型故障,根据风量传感器感知的风量变化确定通风系统发生阻变型故障的网络拓扑位置及其等效风阻,对矿井通风安全智能化管理,提高通风系统的安全保障能力意义重大。通风网络具有较好的自适应性及鲁棒性,利用矿井通风仿真系统MVSS生成训练样本,分别构建了基于SVM的分类器和回归器对故障位置和等效风阻进行诊断。仅以风量为特征的通风系统SVM分类与回归问题是一个不适定问题,研究表明诊断的准确性与传感器的个数及布置位置的分散程度有关,与传感器所在巷道的网络拓扑灵敏度以及巷道风量大小无关。
Bibliography:The abnormal change of ventilation system air volume is also known as the resistance variant fault,and is caused by roadway falling deformation,air-door opening and closing or broken,fan performance declining,roadway extension or scrap,tramcar running,cage lifting and coal silo emptying et al.The network topology location of ventilation variant fault and its equivalent wind resistance are determined according to the numerical changes of air volume sensor.The above-mentioned method holds great influence on intelligent mine ventilation management and security capabilities improvement.Ventilation network possesses better self-adaptability and robustness,the mine ventilation simulation system MVSS is used to generate the training samples.SVM-based classifiers and regressors are constructed respectively to diagnose the fault location and the equivalent wind resistance.Ventilation system SVM classification and regression,which is only characterized by air volume,is an ill-posed problem.This study shows that the acc
ISSN:0253-9993
DOI:10.13225/j.cnki.jccs.2017.1693