公开(公告)号：US20180054150A1

公开(公告)日：2018-02-22

申请号：US15243010

申请日：2016-08-22

Applicant: Hamilton Sundstrand Corporation

Inventor： Dwight D. Schmitt ,  Curtis J. Plude ,  Adam Michael White ,  John Duward Sagona

IPC: H02P27/06

CPC classification number: H02P27/06 ,  H02M7/483 ,  H02M7/487 ,  H02P27/14

Abstract: A system and method for controlling a DC midpoint terminal voltage of a three level inverter is provided. The method includes receiving an input power signal at a three level motor controller system that includes a three level inverter, measuring, using a current sensor in the three level motor controller system, a DC current of the input power signal before the input power signal is provided to the three level inverter, and adjusting a zero-sequence inverter output voltage to adjust a midpoint voltage at the DC midpoint based on the measured DC current.