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    A METHOD OF INITIATING A REGENERATIVE CONVERTER AND A REGENERATIVE CONVERTER
    1.
    发明公开
    A METHOD OF INITIATING A REGENERATIVE CONVERTER AND A REGENERATIVE CONVERTER 审中-实审

    公开(公告)号：EP4366150A2

    公开(公告)日：2024-05-08

    申请号：EP24164825.2

    申请日：2014-04-29

    申请人： KONE Corporation

    发明人： NIKANDER, Juhamatti ,  STOLT, Lauri

    IPC分类号： H02M7/12

    CPC分类号： H02M1/36 ,  H02M5/4585 ,  H02M7/125

    摘要： The invention is related to a method of initiating a regenerative converter (1) for supplying electrical power to an electric motor (10) of a hoisting machine to drive an elevator car of an elevator system. The invention is also related to an elevator system comprising an elevator car, and a hoisting machine comprising an electric motor (10), the hoisting machine arranged to drive the elevator car of the elevator system, and said regenerative converter (1). The method comprises charging, through the line bridge (2) and while the machine bridge (3) remains inactive, the DC intermediate circuit (8A, 8B) to a target voltage (14) higher than peak value of the mains voltage (13).

    AN ELEVATOR AND A METHOD OF ENERGIZING AN ELEVATOR SAFETY APPARATUS
    3.
    发明公开
    AN ELEVATOR AND A METHOD OF ENERGIZING AN ELEVATOR SAFETY APPARATUS 审中-公开

    公开(公告)号：EP4424624A1

    公开(公告)日：2024-09-04

    申请号：EP24154387.5

    申请日：2024-01-29

    申请人： KONE Corporation

    发明人： STOLT, Lauri

    IPC分类号： B66B5/02 ,  B66B1/30

    CPC分类号： B66B5/02 ,  B66B1/30 ,  B66B5/027

    摘要： The invention concerns an elevator and a method for energizing an elevator safety apparatus. The elevator comprises an elevator car (1), adapted for transferring passengers and/or cargo between landing floors (2); an elevator hoisting machine (3) for operating the elevator car (1); a drive unit (4) for driving the hoisting machine (3); and an elevator safety apparatus comprising at least one of a sensor (5), an indicator (6), a control unit (7) and an actuator (8) for ensuring safe elevator operation. The drive unit (4) is configured for delivering supply voltage to said elevator safety apparatus by controlling braking of the elevator hoisting machine (3) with a braking control mode designed for energizing the safety apparatus without need for an additional backup power supply, in case of an elevator power cut.