公开(公告)号：US11757361B2

公开(公告)日：2023-09-12

申请号：US16934839

申请日：2020-07-21

Applicant: DYNAPOWER COMPANY LLC

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

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

CPC classification number: H02M3/1582 ,  G05B19/05 ,  H02J7/0071 ,  H02J7/35 ,  H02M1/08 ,  H02M1/14 ,  H02M3/33584 ,  G05B2219/13095 ,  H02J7/0068 ,  H02M1/0009 ,  H02M1/0054

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：US10996644B2

公开(公告)日：2021-05-04

申请号：US15980224

申请日：2018-05-15

Applicant: DYNAPOWER COMPANY LLC

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

IPC: G05B19/042 ,  H02J3/38 ,  H02J7/35 ,  H02J3/32

Abstract: A power system for connecting a power source, an energy storage unit and a grid includes a power inverter, an energy storage power converter and a controller. The power inverter is electrically coupled to the power source through a DC bus and converts DC power from the DC bus to AC power output to the grid. The power converter is electrically coupled between the DC bus and the energy storage unit and stores power in the energy storage unit and discharges power from the energy storage unit. The controller controls the power converter to store excess power from the power source that cannot be output to the grid in the energy storage unit, and control the energy storage power converter to discharge power stored in the energy storage unit to the power inverter to output to the grid.

公开(公告)号：US20190115761A1

公开(公告)日：2019-04-18

申请号：US16213331

申请日：2018-12-07

Applicant: DYNAPOWER COMPANY LLC

Inventor： John C. PALOMBINI ,  Apurva SOMANI

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

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：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.

公开(公告)号：US20170005473A1

公开(公告)日：2017-01-05

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.

Abstract translation: 一种具有在公共耦合点（PCC）处耦合在一起的多个功率转换器的电力系统。 功率转换器耦合到负载，并向负载提供组合的功率转换器输出。 开关在PCC和外部电网之间串联耦合。 当交换机关闭时，电力系统处于并网配置，当交换机打开时，电力系统处于微电网配置。 耦合到功率转换器的控制系统使得开关响应于从监测外部电网的一个或多个传感器接收的信号而打开和关闭，使得电力转换器能够在开关闭合时以电流控制模式运行，并且转换 电源转换器从并网模式到微格栅模式，并同步电源转换器，使转换器共享负载。

公开(公告)号：US20130300196A1

公开(公告)日：2013-11-14

申请号：US13890948

申请日：2013-05-09

Applicant: DYNAPOWER COMPANY, LLC

Inventor： Kyle B. Clark ,  Leonard E. Lansing

IPC: H02J4/00

CPC classification number: H02J4/00 ,  H02J1/10 ,  H02J3/38 ,  H02M7/48 ,  H02M2001/007 ,  Y02P80/14 ,  Y10T307/367 ,  Y10T307/707

Abstract: The present invention provides a novel electrical power system for micro-grid and distributed generation systems. The invention provides a common, singular Alternating Current (AC) electrical port for multiple Direct Current (DC) generation sources, DC loads and DC electrical energy storage sources. The invention balances the flow of energy through said storage, load and generation sources to provide a constant voltage and frequency to a micro-grid or a regulated real and reactive power component to an electric utility grid. A centralized controller is capable of commanding bi-directional current flow on each DC port in order to maintain an optimum State of Charge such that the storage medium can service both the utility grid and a micro-grid and dynamically transfer between the two operational modes.

Abstract translation: 本发明提供了一种用于微电网和分布式发电系统的新型电力系统。 本发明提供了用于多个直流（DC）发电源，直流负载和直流电能存储源的常见的奇异的交流电（AC）电端口。 本发明通过所述存储，负载和发电源来平衡能量流，以向微电网提供恒定的电压和频率，或者向电力公用电网提供调节的有功和无功功率部件。 集中式控制器能够指挥每个DC端口上的双向电流流动，以便保持最佳的充电状态，使得存储介质可以为公用电网和微电网两者提供服务，并在两种操作模式之间动态传输。