基于磁流变及信息融合的采煤机滚筒调高控制研(7)

发布时间:2021-06-06

hydraulicdrivesystemcanmorequicklyandaccuratelytoservicedrumliftingsystemisoftenencounteredintheshearerdrumliftingcontrolsystem.Thispaperproposesashearerdrumliftingcontrolsystembased

toonmagnetorheologyandsystemusesinformationfusionduethesetworeasons.Firstly,thethe

tocharacteristicsofmagnetorheologicalfluidand

designamagnetorheologicalvalvenewtypehydraulicactuator,andusesthehydraulicactuatortoinsteadofthetraditionalcoalmininghydraulicdrivesystem.Itimprovestheperformanceoftheshearerdrumliftingsystemandsolvesthecurrentproblemsofhydraulicdrivesystem.Secondly,thesystemusesthemethodsofmulti—sensorinformationfusion

adoptsthetoidentifycoal—rockinterfaceandmeansofwaveletpacketfeature

extractiontoextractfeaturesfromsignalsofshearerdrumliftingsystem.UsingthefusionmethodsofBPnetworkandtheD—Sevidencetheory

accuratetogetamoreidentificationsignalofcoal-rockinterface,itrealizesaccurateidentificationofcoal-rockinterfaceandsolvestheproblemofcoal—rockinterfaceidentification.Theshearerdmmliftingcontrolsystemstudiedinthispaper

advancedDSPtechnology,whichnotonlyimprovesthebasicusesperformanceofthesystem,butalsoprovides

coal—rockapowerfulhardwaresupportforidentificationofandcoalminingautomationoperationtechnology.

Keywords:shearer;drumlifting;magnetorheologicalfluids;magnetorheological

valve;multi—sensorinformation

IIfusion

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