公开(公告)号：US4074180A

公开(公告)日：1978-02-14

申请号：US659169

申请日：1976-02-18

Applicant: Raymond Sharpe ,  Kenneth Darnbrough

Inventor： Raymond Sharpe ,  Kenneth Darnbrough

IPC: H02J3/38 ,  H02J3/08 ,  H02H7/06 ,  H02J1/00 ,  H02P9/00

CPC classification number: H02J3/08 ,  Y10T307/718 ,  Y10T307/735

Abstract: An electrical generator arrangement includes a variable-ratio drive device, an alternator driven by the drive device and a generator which is separately excited by the alternator output. An over-running clutch connects the alternator and generator rotors so that in the event of an alteration in the driving output from the drive device the generator can continue to rotate with its normal speed and direction but the frequency of the alternator output provides an indication of the operating state of the drive device.

公开(公告)号：US3107305A

公开(公告)日：1963-10-15

申请号：US3224060

申请日：1960-05-27

Applicant: LEEDS & NORTHRUP CO

Inventor： NATHAN COHN

IPC: H02J3/08

CPC classification number: H02J3/08 ,  Y10T307/576

公开(公告)号：US2900527A

公开(公告)日：1959-08-18

申请号：US60009156

申请日：1956-07-25

Applicant: SUNDSTRAND MACHINE TOOL CO

Inventor： ERIKSON EVANS W

IPC: H02J3/08

CPC classification number: H02J3/08 ,  Y10T307/576

公开(公告)号：US2699526A

公开(公告)日：1955-01-11

申请号：US21375851

申请日：1951-03-03

Applicant: VICKERS INCORPORAED

Inventor： STEPHAN STEINITZ

IPC: H02J3/08

CPC classification number: H02J3/08

公开(公告)号：US2542638A

公开(公告)日：1951-02-20

申请号：US8417849

申请日：1949-03-29

Applicant: GEN ELECTRIC

Inventor： DESCH PHILIP F

IPC: H02J3/08

CPC classification number: H02J3/08

公开(公告)号：US2112251A

公开(公告)日：1938-03-29

申请号：US4283435

申请日：1935-09-30

Applicant: ALLIS CHALMERS MFG CO

Inventor： ARNOLD PFAU

IPC: H02J3/08

CPC classification number: H02J3/08

公开(公告)号：US1971818A

公开(公告)日：1934-08-28

申请号：US56234431

申请日：1931-09-11

Applicant: GEN ELECTRIC

Inventor： HOXIE CHARLES A

IPC: G04C15/00 ,  H02J3/08

CPC classification number: H02J3/08 ,  G04C15/0081 ,  Y10T307/555

公开(公告)号：US1936415A

公开(公告)日：1933-11-21

申请号：US60990932

申请日：1932-05-07

Applicant: GEN ELECTRIC

Inventor： THOMPSON LOUIS W

IPC: H02J3/08

CPC classification number: H02J3/08 ,  Y10T307/289

公开(公告)号：US1906439A

公开(公告)日：1933-05-02

申请号：US33114929

申请日：1929-01-08

Applicant: WARREN TELECHRON CO

Inventor： WARREN HENRY E

IPC: G04C15/00 ,  H02J3/08

CPC classification number: H02J3/08 ,  G04C15/0081

公开(公告)号：US20240222973A1

公开(公告)日：2024-07-04

申请号：US18558092

申请日：2021-09-28

Applicant: BEIJING GOLDWIND CARBON NEUTRAL ENERGY CO., LTD.

Inventor： Wei ZHANG ,  Dehua ZHENG ,  Fuhao GOU ,  Suxian XIE ,  Junsheng ZHANG ,  Xun ZHANG ,  Bitew Girmaw TESHAGER ,  Shuzhong ZHU ,  Yonghuan CHEN

IPC: H02J3/08 ,  H02J3/38

CPC classification number: H02J3/08 ,  H02J3/381 ,  H02J3/388

Abstract: The present disclosure provides a synchronization control method and system for a microgrid group. The synchronization control system for a microgrid group includes a central controller, and the central controller is configured to: receive a voltage measurement value at a grid connection point from each of the plurality of microgrids; perform proportional-integral adjustment on the voltage measurement value to obtain a difference between the voltage measurement value at a previous moment and a control value at a current moment, so as to estimate a control instruction at a next moment for each microgrid; and send a control instruction to at least one microgrid of the plurality of microgrids, to adjust closing synchronization between the plurality of microgrids through phase lock control. The accuracy and timeliness of the collected data and the effectiveness of the control can be ensured, which greatly improves a success rate of synchronization closing of the microgrid group.