公开(公告)号：US10340703B2

公开(公告)日：2019-07-02

申请号：US16213317

申请日：2018-12-07

Applicant: DYNAPOWER COMPANY LLC

Inventor： John C. Palombini ,  Apurva Somani

IPC: H02J3/38 ,  H02M3/335 ,  H02J7/35 ,  H02J7/00 ,  H02J3/32

Abstract: An energy system for renewable energy applications includes a renewable energy source, a bidirectional inverter connected an AC bus and a DC bus, an energy storage unit connected to the bidirectional DC/DC converter, and a control system comprising one or more controllers coupled to the bidirectional inverter and the bidirectional DC/DC converter. The bidirectional inverter is connected to the renewable energy source and a bidirectional DC/DC converter through the DC bus. The system is configured to capture low power of a photovoltaic (PV) array, energy typically lost to inverter clipping, and through the utilization of ramp rate control.

公开(公告)号：US10374429B2

公开(公告)日：2019-08-06

申请号：US15790549

申请日：2017-10-23

Applicant: DYNAPOWER COMPANY LLC

Inventor： Apurva Somani ,  John C. Palombini

IPC: H02J3/38

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.

公开(公告)号：US10404072B2

公开(公告)日：2019-09-03

申请号：US16103145

申请日：2018-08-14

Applicant: DYNAPOWER COMPANY LLC

Inventor： John C. Palombini ,  Apurva Somani

IPC: H02J3/32 ,  H02J3/38 ,  H02J7/00 ,  H02M7/797

Abstract: An energy storage system for renewable energy applications includes a renewable energy source, a bidirectional inverter connected an AC bus and a DC bus, an energy storage unit connected to the bidirectional DC/DC converter, and a control system comprising one or more controllers coupled to the bidirectional inverter and the bidirectional DC/DC converter. The bidirectional inverter is connected to the renewable energy source and a bidirectional DC/DC converter through the DC bus. The control system is configured to facilitate the operation of the bidirectional DC/DC converter and the bidirectional inverter. The energy storage system both stores energy from the renewable energy source and a utility grid, and also supplies power to the utility grid. The energy storage system is utilized in a method for supporting frequency regulation of a utility grid and a method for controlling an output power ramp rate for a renewable energy storage system.

公开(公告)号：US09685852B2

公开(公告)日：2017-06-20

申请号：US15197007

申请日：2016-06-29

Applicant: DYNAPOWER COMPANY LLC

Inventor： Apurva Somani ,  John C. Palombini

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

CPC classification number: H02M1/088 ,  H02J3/08 ,  H02J3/32 ,  H02J3/38 ,  H02J3/381 ,  H02J3/40 ,  H02J9/005 ,  H02J2003/388 ,  H02M1/36 ,  H02M3/00 ,  H02M5/4585 ,  H02M7/00 ,  H02M7/539 ,  H02M7/797 ,  H02M2001/0032 ,  Y02B70/1441 ,  Y02B70/145 ,  Y02B70/16 ,  Y02P80/14

Abstract: A power system having a plurality of operating modes including an active mode and an active standby mode includes a power converter and a controller the power converter is configured to adapt a power supply to a desired output, and the power converter includes a plurality of semiconductor switches that receive a gating signal when the power system is in the active mode such that the power converter is in a gating state. The controller controls the power converter in the active mode and the active standby mode, and the controller is configured to: while the power converter is synchronized to the grid, determine whether the power system should enter into the active standby mode in which the power converter is in a non-gating state; when it is determined the power system should enter into the active standby mode, control the power converter to be in a non-gating state such that the power system is in the active standby mode.

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：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.