公开(公告)号：US20150180468A1

公开(公告)日：2015-06-25

申请号：US14564766

申请日：2014-12-09

Applicant: ABB OY

Inventor： Mika NIEMI

IPC: H03K17/66

CPC classification number: H03K17/66 ,  H03K17/082 ,  H03K17/12

Abstract: 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.

Abstract translation: 用于平衡功率半导体电流的示例性方法和装置。 该装置包括多个功率半导体单元和中央控制单元。 每个功率半导体单元包括功率半导体，并且中央控制单元和功率半导体单元布置在双向环中，其中中央控制单元在双向环中向两个方向发送功率半导体单元的控制信息 并且每个功率半导体单元在两个方向上接收控制信息并转发所接收的控制信息。 每个功率半导体单元被配置为在第一时刻从第一方向接收控制信息，在第二时刻从第二方向接收控制信息，计算第一和第二时刻之间的中点，并且控制功率 半导体元件根据计算出的中点经过时间延迟后的控制信息。