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公开(公告)号：US20240305211A1
公开(公告)日：2024-09-12
申请号：US18433855
申请日：2024-02-06
发明人： Alfred PERMUY , Laurent FAHRNER , Duro BASIC , Sami SIALA , Cyrille BAVIERE , Zhi ZHOU
摘要： A power supply system for arc furnace is described. The power supply system includes a power converter intended to be connected to a polyphase supply grid and a polyphase transformer comprising a primary circuit connected to the power converter and a secondary circuit intended to be connected to at least one electrode of the arc furnace. The power converter includes an input device, a link circuit that has a first bus and a second bus, and an output device. The power supply system further includes a command circuit configured to command the input device and the output device to supply the electrode and to stabilize the courant and the voltage delivered by the grid when the electrode of the arc furnace is supplied by the power supply system to reduce rejections in the grid.
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公开(公告)号：US20230412059A1
公开(公告)日：2023-12-21
申请号：US18336751
申请日：2023-06-16
摘要： Provided is an electric stabiliser for stabilising a floating structure that includes a track for guiding a mover as a moving stabiliser mass. A direct current (DC) linear motor includes a planar stator that extends along the track and the mover that is adapted to move forwards and backwards along the track as the stabiliser mass. The planar stator includes a polyphase stator winding with winding coils connected. The mover includes permanent motor magnets facing the polyphase stator winding that define mover poles of alternating polarity along the track direction. Two active magnetic bearings is positioned between the track and a main body of the mover for selectively levitating the mover. In use, the active magnetic bearings levitate the mover above the track and the DC linear motor is controlled to move the mover backwards and forwards along the track to dampen a rolling/pitching movement of the floating structure.
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