| 摘要 |
A current supply arrangement (A, B) for rectifying three-phase current into multi-pulse DC current with at least one three-phase AC current transformer with a transformer core or three single-phase AC current transformers, each having a transformer core, wherein the three-phase AC current transformer includes three first secondary-side coils (L21, L22, L23), each of which is arranged on a corresponding leg of the transformer core, wherein each secondary side coil is arranged on a leg of the transformer cores, with at least one first rectifier having first converter valves (D1, D2, D3). The first converter valves (D1, D2, D3) are connected with the first secondary-side coils (L21, L22, L23) to form the first rectifier, wherein the current supply arrangement (A, B) includes means (S1, S2, S3) for changing the transformer ratio of the three-phase AC current transformer or the transformer ratios of the three single-phase AC current transformers. |
| 主权项 |
1. A current supply arrangement (A, B) for rectifying three-phase current into multi-phase current, the arrangement comprising:
at least one three-phase AC current transformer with a transformer core or three single-phase AC current transformers, each having a transformer core, wherein
the three-phase AC current transformer comprises three first secondary-side coils (L21, L22, L23), with each coil being arranged on a corresponding leg of the transformer core, or each of the three single-phase AC current transformers comprises a first secondary-side coil, wherein each secondary side coil is arranged on a leg of the transformer cores, at least one first rectifier comprising first converter valves (D1, D2, D3), wherein
the first converter valves (D1, D2, D3) are connected to the first secondary-side coils (L21, L22, L23) to form the first rectifier, wherein the current supply arrangement (A, B) comprises three primary-side circuits (P1, P2, P3), wherein each primary-side circuit (P1, P2, P3) comprises three primary-side coils (L11, L12, L13), and means (S1, S2, S3) for changing the transformer ratio of the three-phase AC current transformer or the transformer ratios of the three single-phase AC current transformers, wherein the primary-side coils (L11, L12, L13) of each primary-side circuit (P1, P2, P3) are arranged on a respective leg of the transformer core, wherein the primary-side circuits (P1, P2, P3) are connected to one another in a delta or star configuration; wherein the means (S1, S2, S3) for changing the transformer ratio of the three-phase AC current transformer or the transformer ratios of the three single-phase AC current transformers controls power on the primary side, without controlling power on the secondary side, wherein the three-phase AC current transformer is connected on the primary side in a star configuration having a primary-side star point (N), wherein the primary-side start point (N) is connected with phase conductor terminals (L1, L2, L3) of the current supply arrangement (A) by way of corresponding series resonance circuits, wherein the current supply arrangement (A, B) further comprises: a first means (S1) for changing the transformer ratio of the three-phase AC current transformer or the transformer ratios of the three single-phase AC current transformers electrically connected to a third primary-side coil (L13) and electrically connected to a second primary-side coil (L12); a second means (S2) for changing the transformer ratio of the three-phase AC current transformer or the transformer ratios of the three single-phase AC current transformers electrically connected to the third primary-side coil (L13) and electrically connected to the second primary-side coil (L12); a third means (S3) for changing the transformer ratio of the three-phase AC current transformer or the transformer ratios of the three single-phase AC current transformers electrically connected to the third primary-side coil (L13) and electrically connected between the second primary-side coil (L12) and a first primary-side coil (L11). |
