-
1.发明申请System and Method for Reducing Reactive Current on a Common DC Bus with Multiple Inverters 有权在多个逆变器的公共直流母线上减少无功电流的系统和方法公开(公告)号：US20140361613A1
公开(公告)日：2014-12-11
申请号：US13910656
申请日：2013-06-05
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Rongjun Huang , Craig Winterhalter , Mark Gries , Ye Li
IPC: H02J1/06
CPC classification number: H02J1/06 , H02M1/14 , H02M7/493 , H02M2001/008 , Y10T307/258
Abstract: A system configured to reduce the amplitude of reactive current present on a DC bus shared by multiple inverters is disclosed. The start of the switching period for the modulation routines of each inverter is synchronized, and a carrier phase angle is determined for a carrier signal within each of the inverters. The modulation routine of each inverter generates a reactive current on the shared DC bus. By controlling the carrier phase angle for each inverter, the reactive current of a first inverter may be generated at a phase angle that is offset from the phase angle of the reactive current generated by a second inverter. As a result, the reactive current from the first inverter cancels at least a portion of the reactive current from the second inverter, reducing the total reactive current present on the DC bus.
Abstract translation: 公开了一种被配置为减小由多个逆变器共享的DC总线上存在的无功电流的幅度的系统。 每个逆变器的调制程序的开关周期的开始同步，并且确定每个逆变器内的载波信号的载波相位角。 每个逆变器的调制程序在共享的直流总线上产生无功电流。 通过控制每个逆变器的载波相位角，可以以与由第二反相器产生的无功电流的相位角偏离的相位角产生第一反相器的无功电流。 因此，来自第一反相器的无功电流抵消来自第二反相器的无功电流的至少一部分，从而减小DC总线上存在的总无功电流。
-
2.发明授权System and method for reducing reactive current on a common DC bus with multiple inverters 有权在多个逆变器的公共直流母线上减少无功电流的系统和方法公开(公告)号：US09515484B2
公开(公告)日：2016-12-06
申请号：US13910656
申请日：2013-06-05
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Rongjun Huang , Craig Winterhalter , Mark Gries , Ye Li
CPC classification number: H02J1/06 , H02M1/14 , H02M7/493 , H02M2001/008 , Y10T307/258
Abstract: A system configured to reduce the amplitude of reactive current present on a DC bus shared by multiple inverters is disclosed. The start of the switching period for the modulation routines of each inverter is synchronized, and a carrier phase angle is determined for a carrier signal within each of the inverters. The modulation routine of each inverter generates a reactive current on the shared DC bus. By controlling the carrier phase angle for each inverter, the reactive current of a first inverter may be generated at a phase angle that is offset from the phase angle of the reactive current generated by a second inverter. As a result, the reactive current from the first inverter cancels at least a portion of the reactive current from the second inverter, reducing the total reactive current present on the DC bus.
Abstract translation: 公开了一种被配置为减小由多个逆变器共享的DC总线上存在的无功电流的幅度的系统。 每个逆变器的调制程序的开关周期的开始同步，并且确定每个逆变器内的载波信号的载波相位角。 每个逆变器的调制程序在共享的直流总线上产生无功电流。 通过控制每个逆变器的载波相位角，可以以与由第二反相器产生的无功电流的相位角偏离的相位角产生第一反相器的无功电流。 因此，来自第一反相器的无功电流抵消来自第二反相器的无功电流的至少一部分，从而减小DC总线上存在的总无功电流。
-
Search Results
2
records
(took 0.013 seconds)
