公开(公告)号：US20180329382A1

公开(公告)日：2018-11-15

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

CPC classification number: G05B19/042 ,  G05B2219/2639 ,  H02J3/32 ,  H02J3/383 ,  H02J3/385 ,  H02J7/35

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：US20210255595A1

公开(公告)日：2021-08-19

申请号：US17306416

申请日：2021-05-03

Applicant: DYNAPOWER COMPANY LLC

Inventor： Apurva SOMANI ,  Xiaorong XIA ,  Gysler CASTELINO ,  Anup THAPA

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

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：US20210006164A1

公开(公告)日：2021-01-07

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

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 arid 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.