caiyongyuandiandongji,zhixuzaidianwangdianyuanhexianyoudediandongjizhijianjierubianpinqihexiangyingshebei,jiukeyiliyongbianpinqishixiantiaosukongzhi,erwuxuduidiandongjihexitongbenshenjinxingdadeshebeigaizao。qizhongjiyuanyoudediandongjiweiputongraoxianxingdiandongji,duanjiezhuanzihuilukeyongyubianpinqiyunxing,kemanzubianpinqidesudu、加速度、起動、過載能力等要求,能適應電網和使用環境的要求。電動機運行方向、速su度du無wu觸chu點dian控kong製zhi,提ti高gao了le電dian氣qi係xi統tong的de可ke靠kao性xing。由you於yu在zai電dian機ji軸zhou上shang加jia裝zhuang脈mai衝chong編bian碼ma器qi,編bian碼ma器qi將jiang檢jian測ce到dao的de電dian機ji速su度du反fan饋kui回hui變bian頻pin器qi,形xing成cheng閉bi環huan控kong製zhi係xi統tong,使shi電dian動dong機ji具ju備bei自zi適shi應ying功gong能neng。軟ruan起qi動dong和he製zhi動dong,減jian小xiao了le機ji械xie衝chong擊ji,延yan長chang傳chuan動dong機ji構gou壽shou命ming。自zi動dong監jian測ce的de低di速su抱bao閘zha,減jian少shao了le製zhi動dong器qi磨mo損sun。製zhi動dong器qi製zhi動dong力li矩ju可ke調tiao至zhi額e定ding值zhi,保bao證zheng緊jin急ji停ting車che時shi的de安an全quan距ju離li。
起重機交流變頻調速係統的特點主、副起升機構均選用1台變頻器,電動機由變頻器通過相應脈衝編碼器反饋組成閉環調速係統。采用矢量型控製變頻器,調速範圍寬、精jing度du高gao,係xi統tong實shi現xian穩wen定ding低di速su運yun行xing,改gai善shan了le定ding位wei的de準zhun確que性xing,從cong而er保bao證zheng了le兩liang台tai起qi重zhong機ji起qi吊diao電dian機ji轉zhuan子zi的de同tong步bu性xing。內nei部bu設she置zhi轉zhuan矩ju及ji電dian流liu調tiao節jie器qi,智zhi能neng化hua電dian動dong機ji控kong製zhi,速su度du給gei定ding無wu超chao調tiao,動dong態tai速su降jiang小xiao。係xi統tong采cai用yong能neng耗hao製zhi動dong,製zhi動dong時shi的de機ji械xie能neng量liang通tong過guo電dian阻zu器qi快kuai速su釋shi放fang,實shi現xian機ji構gou快kuai速su準zhun確que停ting車che。
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