公开(公告)号：US20240356333A1

公开(公告)日：2024-10-24

申请号：US18638599

申请日：2024-04-17

申请人： Delta Electronics India Private Limited

发明人： Saichand Kasicheyanula ,  Shashidhar Mathapati

IPC分类号： H02J3/14 ,  H02J3/46 ,  H02M1/00 ,  H02M7/217 ,  H02M7/219

CPC分类号： H02J3/144 ,  H02J3/46 ,  H02M1/0067 ,  H02M7/217 ,  H02M7/219

摘要： A power converter system includes a plurality of AC-DC-HFAC modules configured to generate HFAC voltages from the AC voltage received from a power source. The power converter system further includes a plurality of multi-winding high frequency transformers (HFTs) including primary windings and secondary windings. Each secondary winding of the plurality of multi-winding HFTs coupled to the plurality of AC-DC-HFAC modules generates an HFAC voltage port. Further, the power converter system includes one or more HFAC-DC modules coupled to a corresponding secondary winding of the plurality of multi-winding HFTs, thereby generating isolated DC load ports. The plurality of multi-winding HFTs is operated based on a phase angle control technique for enabling power transmission between the primary windings to each of the secondary windings based on the load demand, thereby providing DC power supply to loads.

公开(公告)号：US20190165727A1

公开(公告)日：2019-05-30

申请号：US16193353

申请日：2018-11-16

申请人： DELTA ELECTRONICS INDIA PRIVATE LIMITED

发明人： Bhupinder Kumar Bhayana ,  Sumit Aggarwal

IPC分类号： H02S40/32 ,  H02P27/06 ,  H02J3/38 ,  H02H7/20

摘要： A solar pumping system and a method for operating solar pumping system, the system comprises plurality of solar modules, at least one VFD comprising at least one convertor, at least one switching device connected to the solar module and the VFD and at least one AC motor connected to the output supply of the VFD. The switching device controls the supply of DC power transmitted to the VFD based on the input received from a controller of the VFD by varying the output voltage in accordance with the load requirement of the AC motor. The method comprising the steps of controlling the supply of voltage output of solar modules through the switching device as to provide adequate power to the solar pump based on the requirement of the motor in order to avoid tripping by increasing or decreasing the voltage output of the solar modules to a predetermined fraction of voltage for a predetermined fraction of time.

公开(公告)号：US11456697B2

公开(公告)日：2022-09-27

申请号：US16193353

申请日：2018-11-16

申请人： DELTA ELECTRONICS INDIA PRIVATE LIMITED

发明人： Bhupinder Kumar Bhayana ,  Sumit Aggarwal

IPC分类号： H02P27/06 ,  H02S40/32 ,  H02H7/20 ,  F04B17/00 ,  F04B49/06 ,  F03G6/00 ,  H02J3/38 ,  H02J7/35 ,  F04B49/20 ,  H02J5/00 ,  H02J1/00

摘要： A solar pumping system and a method for operating solar pumping system, the system comprises plurality of solar modules, at least one VFD comprising at least one convertor, at least one switching device connected to the solar module and the VFD and at least one AC motor connected to the output supply of the VFD. The switching device controls the supply of DC power transmitted to the VFD based on the input received from a controller of the VFD by varying the output voltage in accordance with the load requirement of the AC motor. The method comprising the steps of controlling the supply of voltage output of solar modules through the switching device as to provide adequate power to the solar pump based on the requirement of the motor in order to avoid tripping by increasing or decreasing the voltage output of the solar modules to a predetermined fraction of voltage for a predetermined fraction of time.