| 发明名称 | Balancing currents of power semiconductors | ||
| 摘要 | An exemplary method and arrangement for balancing currents of power semiconductors. The arrangement including multiple power semiconductor units and a central control unit. Each power semiconductor unit includes a power semiconductor and the central control unit and the power semiconductor units are arranged in a bi-directional ring, in which the central control unit sends control information for the power semiconductor units in both directions in the bi-directional ring and each power semiconductor unit receives the control information in both directions and forwards the received control information. Each power semiconductor unit configured to receive the control information from the first direction at a first time instant, receive the control information from the second direction at a second time instant, calculate a midpoint between the first and the second time instants, and control the power semiconductor component according to the control information after a time delay after the calculated midpoint has elapsed. | ||
| 申请公布号 | US9503077(B2) | 申请公布日期 | 2016.11.22 |
| 申请号 | US201414564766 | 申请日期 | 2014.12.09 |
| 申请人 | ABB Technology Oy | 发明人 | Niemi Mika |
| 分类号 | H03K17/06;H03K17/66;H03K17/082;H03K17/12 | 主分类号 | H03K17/06 |
| 代理机构 | Taft Stettinius & Hollister LLP | 代理人 | Taft Stettinius & Hollister LLP |
| 主权项 | 1. A method for balancing currents in an arrangement having multiple power semiconductor units and a central control unit, each power semiconductor unit having a power semiconductor and the central control unit and the power semiconductor units being arranged in a bi-directional ring, the method comprising: at the central control unit: sending, control information for the power semiconductor units to both directions in the bi-directional ring; and at each power semiconductor unit: receiving the control information from both directions which includes: receiving the control information from a first direction at a first time instant;receiving the control information from a second direction at a second time instant;calculating the midpoint between the first and the second time instants; andcontrolling the power semiconductor component according to the control information after a time delay after the calculated midpoint has elapsed; andforwarding the received control information. | ||
| 地址 | Helsinki FI | ||