公开(公告)号：US20190181768A1

公开(公告)日：2019-06-13

申请号：US16327493

申请日：2017-08-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Prashanth Manikumar Chennamsetty ,  Rien William O'Steen ,  Pradeep Vijayan ,  Arvind Kumar Tiwari

IPC: H02M3/335 ,  H02M1/08

CPC classification number: H02M3/33592 ,  H02M1/08 ,  H02M2001/0009 ,  H02M2001/0048 ,  H02M2001/327 ,  Y02B70/1475 ,  Y02B70/1491

Abstract: A system including a converter is disclosed. The converter includes a first switch having one or more first controllable switches coupled in parallel across at least one diode. A first controlling unit is operatively coupled to the converter. The first controlling unit is configured to determine a temperature of the one or more first controllable switches. The first controlling unit is further configured to compare the determined temperature of the one or more first controllable switches with a transition temperature at which a first power loss of the one or more first controllable switches is equal to a second power loss of the at least one diode and control a switching state of the one or more first controllable switches based on the comparison of the determined temperature with the transition temperature.

公开(公告)号：US20170179829A1

公开(公告)日：2017-06-22

申请号：US14975349

申请日：2015-12-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Ramanujam Ramabhadran ,  Jeffrey Joseph Nasadoski ,  Yehuda Daniel Levy ,  Shimon Khananshvili ,  Pradeep Vijayan ,  Bruce Richard Roberts

IPC: H02M3/158 ,  H02M1/12 ,  H05B33/08 ,  H02M1/42 ,  H05B37/02

CPC classification number: H02M3/1582 ,  H02M1/12 ,  H02M1/4208 ,  H02M1/4225 ,  H05B33/0815 ,  Y02B70/126

Abstract: An electronic device includes a controller configured to regulate one or more voltages or currents of a power converter. The controller is configured to receive an input voltage of the power converter, determine whether the power converter is operating in a first mode of operation or a second mode of operation based at least in part on the input voltage, generate a multiplier reference signal for the power converter based on whether the power converter is operating in the first mode of operation or the second mode of operation, and adjust an input current of the power converter based at least in part on the multiplier reference signal. Adjusting the input current includes correcting the input current to be substantially identical in form to the input voltage.

公开(公告)号：US20150263566A1

公开(公告)日：2015-09-17

申请号：US14306641

申请日：2014-06-17

Applicant: General Electric Company

Inventor： Yashomani Kolhatkar ,  Pradeep Vijayan ,  Viswanathan Kanakasabai ,  Silvio Colombi ,  Rajendra Naik ,  Prashanth Manikumar Chennamsetty

IPC: H02J9/06 ,  G05F3/02 ,  H02J4/00

CPC classification number: H02J9/061 ,  G05F3/02 ,  H02J3/40 ,  H02J3/46 ,  H02J4/00 ,  H02J9/062 ,  Y10T307/344

Abstract: A system is provided. The system includes a utility, a plurality of uninterruptible power supplies (UPSs), a ring bus, at least one load electrically coupled to the plurality of UPSs and the ring bus, and a controller communicatively coupled to the plurality of UPSs, the controller configured to determine a common reference angle while the utility is disconnected from at least one UPS of the plurality of UPSs, calculate a phase angle for each UPS of the plurality of UPSs, wherein the phase angle for each UPS is calculated relative to the common reference angle, and control operation of each UPS based on the respective calculated phase angles.

Abstract translation: 提供了一个系统。 该系统包括公用事业，多个不间断电源（UPS），环形总线，至少一个负载电耦合到多个UPS和环形总线的负载，以及控制器，其通信地耦合到多个UPS，所述控制器被配置 以在公用事业与多个UPS的至少一个UPS断开连接时确定公共参考角度，计算多个UPS中的每个UPS的相位角，其中每个UPS的相位角相对于公共参考角度被计算 并根据相应的计算出的相位角控制各个UPS的运行。