发明名称 |
Magnetic field generation system |
摘要 |
A magnetic field generating system has a three-dimensional winding arrangement with three windings (1,2,3) arranged mainly orthogonally to one another and enclosing a machine or equipment item. Two windings/winding pairs/winding systems are fed with first periodic quantities variables at a first frequency (f1), and one phase-shift of preferably 90 degrees is set between the two first periodic quantities, and a winding/winding pair/winding system is supplied with a second periodic quantity at a second frequency (f2), which is less than the first frequency (f1).A successive switchover of these periodic quantities follows on the three windings/winding pairs/winding systems at a third frequency (f3), which is less than the second frequency (f2).
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申请公布号 |
EP1475879(A2) |
申请公布日期 |
2004.11.10 |
申请号 |
EP20040010440 |
申请日期 |
2004.05.03 |
申请人 |
ABB RESEARCH LTD. |
发明人 |
O' BRIEN, KATHLEEN;SCHEIBLE, GUNTRAM, DR. -ING.;SCHUTZ, JEAN, DR.-ING. |
分类号 |
G08C17/04;H02J17/00;(IPC1-7):H02J17/00 |
主分类号 |
G08C17/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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