Invention Grant
US08933378B2 Power supply system for a polyphase arc furnace with an indirect converter between a mains connection and a furnace transformer
有权
用于多相电弧炉的电源系统，在电源连接和炉式变压器之间具有间接转换器
- Patent Title: Power supply system for a polyphase arc furnace with an indirect converter between a mains connection and a furnace transformer
- Patent Title (中): 用于多相电弧炉的电源系统，在电源连接和炉式变压器之间具有间接转换器
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Application No.: US13121736Application Date: 2009-09-08
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Publication No.: US08933378B2Publication Date: 2015-01-13
- Inventor: Wolfgang Hörger , Wolfgang Meusel
- Applicant: Wolfgang Hörger , Wolfgang Meusel
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agency: King & Spalding L.L.P.
- Priority: DE102008049610 20080930
- International Application: PCT/EP2009/061605 WO 20090908
- International Announcement: WO2010/037616 WO 20100408
- Main IPC: H05B1/02
- IPC: H05B1/02 ; H05B7/00 ; H05B7/144 ; H02M7/483
Abstract:
In a power supply system for a three-phase arc furnace (1), comprising at least one furnace transformer (4), the furnace transformer (4) is connected on the secondary side to the three-phase arc furnace (1). On the primary side, the furnace transformer (4) is connected to a three-phase supply mains (3) through an indirect converter (5). The indirect converter (5) comprises at least one rectifier (6) on the mains side, at least one inverter (7) on the transformer side, and an intermediate circuit (8) between the rectifier (6) and the inverter (7). Each phase of the three-phase supply mains (3) is connected to the intermediate circuit (8) through two converter elements (11) of the rectifier (6) in each case. Each primary-side phase of the furnace transformer (4) is connected to the intermediate circuit (8) through two converter elements (2) of the inverter (7) in each case.
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