公开(公告)号：US10243444B2

公开(公告)日：2019-03-26

申请号：US15598435

申请日：2017-05-18

Applicant: DYNAPOWER COMPANY LLC

Inventor： Apurva Somani ,  John C. Palombini

IPC: H02M1/088 ,  H02M3/00 ,  H02J3/08 ,  H02M7/00 ,  H02J3/32 ,  H02J3/38 ,  H02J3/40 ,  H02J9/00 ,  H02M7/539 ,  H02M1/36 ,  H02M5/458 ,  H02M7/797 ,  H02M1/00

Abstract: A power system for power conversion between at least one power source and a grid is disclosed. The power system includes a power converter having a plurality of semiconductor switches, configured to adapt a power supply to a desired output; and a controller for controlling the power converter in an active mode and an active standby mode, the controller configured to: determine to enter into the active mode or the active standby mode; based on the active mode or the active standby mode is determined, control the power converter to be in a gating state with the grid or to be in a non-gating state with the grid.

公开(公告)号：US20180331625A1

公开(公告)日：2018-11-15

申请号：US15895565

申请日：2018-02-13

Applicant: DYNAPOWER COMPANY LLC

Inventor： Apurva Somani ,  Xiaorong Xia ,  Anup Thapa ,  Gysler Castelino

IPC: H02M3/158 ,  H02J7/35 ,  H02M3/335 ,  H02J7/00 ,  H02M1/14 ,  H02M1/08 ,  G05B19/05

Abstract: A DC/DC converter system includes a bidirectional DC/DC converter converting between voltage levels at first and second ports and a control system for controlling the DC/DC converter. The bidirectional DC/DC converter includes a first conversion stage connected to the first port and a second conversion stage interfaced with the first conversion stage and connected to the second port. The control system includes outer and inner control loops. The outer control loop compares a command for one of a voltage level, a current level or power at one of the first and second ports to an actual value of voltage level, current level or power level and outputs an interface current command based on the comparison. The inner control loop compares the interface current command to an actual interface current at an interface of the first and second conversion stages, and controls a switching signal duty value based on the comparison.

公开(公告)号：US09819190B2

公开(公告)日：2017-11-14

申请号：US15196869

申请日：2016-06-29

Applicant: DYNAPOWER COMPANY LLC

Inventor： Apurva Somani ,  John C. Palombini

IPC: H02J3/38

CPC classification number: H02J3/381 ,  H02J2003/388 ,  Y02P80/14 ,  Y02P80/152

Abstract: A power system having a plurality of power converters coupled together at a point of common coupling (PCC). The power converters are coupled to a load and provide a combined power converter output to the load. A switch is coupled in series between the PCC and an external grid. When the switch is closed, the power system is in a grid-tied configuration and when the switch is open, the power system is in a microgrid configuration. A control system coupled to the power converters enables the switch to open and close in response to a signal received from one or more sensors monitoring the external grid, enables the power converters to operate in a current control mode when the switch is closed, and transitions the power converters from grid-tied mode to microgrid mode and synchronize the power converters such that the converters share the load.