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    • 1. 发明专利
    • Cantilevered-shaft electric motor
    • AU2012366503B2
    • 2016-02-25
    • AU2012366503
    • 2012-12-06
    • HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO LTD
    • MIYOSHI TSUTOMUYAJIMA KENJI
    • H02K5/173H02K5/10H02K15/02
    • This cantilevered-shaft electric motor has no bearing on the load side, and since there also is no end bracket, which is present in ordinary electric motors, the internal stator and rotor are in an unprotected state in a bare state. The present invention provides a cantilevered-shaft electric motor that prevents damage to the stator and rotor during transport, causes handling properties during transport and during coupling to a load side to be favorable, and prevents contaminants from infiltrating. The cantilevered-shaft electric motor is provided with: a stator that is affixed at the inner diameter side of a housing; and a rotor that is rotatably borne disposed facing the inner peripheral side of the stator. The cantilevered-shaft electric motor has a structure such that the rotor is provided with a bearing at the reverse side from the load and the shaft at the load side is supported at an apparatus side. The cantilevered-shaft electric motor is characterized by being provided with a partition plate having a hole through which the rotary shaft penetrates at the load side of the rotor, the partition plate being provided with: a role as an affixing jig that supports the rotary shaft in a manner so that the rotor does not contact the stator during transport; and a role as a protective member that prevents the infiltration of contaminants from the outside.
    • 4. 发明专利
    • 電力轉換系統及馬達控制方法
    • 电力转换系统及马达控制方法
    • TW202011683A
    • 2020-03-16
    • TW108130230
    • 2019-08-23
    • 日商日立產機系統股份有限公司HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    • 高田英人TAKADA, HIDETO杉浦正樹SUGIURA, MASAKI石垣卓也ISHIGAKI, TAKUYA小林澄男KOBAYASHI, SUMIO
    • H02P27/08H02P6/06
    • 本發明提供一種可抑制隨著由馬達負載之經年劣化等所致之特性變化而產生之控制偏差的電力轉換系統及馬達控制方法。 本發明之電力轉換系統具備對馬達電力轉換裝置2供給電力之電源裝置1,該馬達電力轉換裝置2對馬達3供給電力,馬達電力轉換裝置2具有:逆變器7,其轉換電力;控制電路8,其控制逆變器7;及電流檢測器59、60,其等檢測逆變器7內之電流;電源裝置1具有:儲存裝置6,其根據電壓而儲存電力;升降壓電源電路5,其基於電壓指令而變更儲存裝置6之電壓;及電壓指令運算電路15,其運算儲存於儲存裝置6之能量並作為電壓指令向升降壓電源電路5輸出;且基於使用來自馬達3所具備之編碼器10之資訊及利用電流檢測器59、60所檢測之電流值而計算出之馬達3的動力運行能量或再生能量,運算儲存於儲存裝置6之能量。
    • 本发明提供一种可抑制随着由马达负载之经年劣化等所致之特性变化而产生之控制偏差的电力转换系统及马达控制方法。 本发明之电力转换系统具备对马达电力转换设备2供给电力之电源设备1,该马达电力转换设备2对马达3供给电力,马达电力转换设备2具有:逆变器7,其转换电力;控制电路8,其控制逆变器7;及电流检测器59、60,其等检测逆变器7内之电流;电源设备1具有:存储设备6,其根据电压而存储电力;升降压电源电路5,其基于电压指令而变更存储设备6之电压;及电压指令运算电路15,其运算存储于存储设备6之能量并作为电压指令向升降压电源电路5输出;且基于使用来自马达3所具备之编码器10之信息及利用电流检测器59、60所检测之电流值而计算出之马达3的动力运行能量或再生能量,运算存储于存储设备6之能量。