ClassID:

216910

H02J3/08 - CPC Classification

Classification description:

Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources Synchronising of networks

Recent Application in this class:
#1
20260142463
2026-05-21

SERIES-TYPE FLEXIBLE TRANSFER CONVERTER SUPPORTING FULLY AUTONOMOUS CONTROL OF MICROGRID AND CONTROL METHODS

#2
20260121554
2026-04-30

METHOD FOR CONTROLLING A BATTERY CHARGE OF A POLYPHASE ELECTRICAL SYSTEM FOR GENERATING A DC VOLTAGE BY SWITCHING THE CURRENT LINES

#3
20260081430
2026-03-19

MINIMUM-RESOURCE, MULTIPLE-MICROGRID BLACK START DRIVEN BY GRID FORMING INVERTERS

#4
20250355455
2025-11-20

PHASOR MEASUREMENT UNITS, SYNCHROPHASOR SYSTEMS AND METHODS THEREOF

#5
20250337241
2025-10-30

Method And Apparatus For Parameterizing Protective Devices Of A Power Supply Network

#6
20250226668
2025-07-10

Energy Storage System and Islanding Detection Method

#7
20250226657
2025-07-10

POWER SUPPLY SYSTEM AND GRID-FORMING CONTROL METHOD

#8
20250192551
2025-06-12

SYNCHRONIZATION OF FREQUENCY MEASUREMENTS IN A DEMAND RESPONSE SYSTEM

#9
20250175001
2025-05-29

CONTROL OF BIPOLE POWER TRANSMISSION NETWORKS

#10
20250141228
2025-05-01

PHASOR IDENTIFICATION VIA SYNCHRONOUS MESSAGING

#11
20250023351
2025-01-16

SYSTEMS AND METHODS FOR PHASE IDENTIFICATION USING RELATIVE PHASE ANGLE MEASUREMENTS

#12
20240222973
2024-07-04

SYNCHRONIZATION CONTROL METHOD AND SYSTEM FOR MICROGRID GROUP

#13
20230318306
2023-10-05

UNIVERSAL CONTROL UNIT FOR PV FED SINGLE STAGE INVERTERS

#14
20230314494
2023-10-05

Portable sync module

#15
20230299581
2023-09-21

Systems and methods for phase identification using relative phase angle measurements

#16
20230246438
2023-08-03

Data alignment method, differential protector and differential protection system

#17
20230208137
2023-06-29

DEVICES AND METHODS FOR IMPROVING A GRID SYNCHRONIZATION OF UNIDIRECTIONAL POWER CONVERTERS

#18
20230155520
2023-05-18

POWER CONVERSION DEVICE

#19
20230042887
2023-02-09

PHASOR MEASUREMENT UNITS, SYNCHROPHASOR SYSTEMS AND METHODS THEREOF

#20
20220271534
2022-08-25

EFFICIENT KNOWLEDGE DISSEMINATION METHOD FOR DISTRIBUTION AUTOMATION WITH DISTRIBUTED CONTROLS

#21
20220269234
2022-08-25

Dynamic graph for data propagation

#22
20220224149
2022-07-14

Method for controlling an uninterruptable power supply

#23
20220216725
2022-07-07

Method of identifying when to initiate control sequences

#24
20220209533
2022-06-30

Method for making spatio-temporal combined optimal scheduling strategy of mobile energy storage (MES) system

#25
20220200478
2022-06-23

HIGH VOLTAGE INVERTER SYSTEM, AND METHOD FOR SYNCHRONIZING SIZE AND PHASE OF HIGH VOLTAGE INVERTER USING SAME

#26
20220181878
2022-06-09

Handling of lost time synchronization in a substation network

#27
20220021208
2022-01-20

Phasor identification via synchronous messaging

#28
20220006290
2022-01-06

Systems and methods for phase identification using relative phase angle measurements

#29
20210296891
2021-09-23

System for distributing locally generated energy to multiple load units

#30
20210143669
2021-05-13

Method of identifying when to initiate control sequences

#31
20210143640
2021-05-13

Controller for self-organizing microgrid

#32
20210126454
2021-04-29

Synchronization verification system using remotely managed time

#33
20210119449
2021-04-22

Wind power converting device

#34
20200293077
2020-09-17

SYSTEM AND METHOD FOR SYNCHRONIZING MULTIPLE GENERATORS WITH AN ELECTRICAL POWER DISTRIBUTION SYSTEM

#35
20200185919
2020-06-11

CONTROL FOR RESOURCE DISTRIBUTION NETWORK

#36
20200044444
2020-02-06

System for distributing locally generated energy to multiple load units

#37
20200036186
2020-01-30

Smart grid timing synchronization method, system, device and computer readable storage medium

#38
20200014211
2020-01-09

Power transmission system capable of preventing power transmission efficiency from degrading due to frequency mismatch and loss of synchronization

#39
20200006981
2020-01-02

Power transmission system preventing power transmission efficiency from degrading due to delay

#40
20190267836
2019-08-29

3-wire multiphase UPS with bypass

#41
20190190275
2019-06-20

Grid isolating wind farm control

#42
20190103743
2019-04-04

Systems and methods for distributed synchronization of micro-grids with multiple points of interconnection

#43
20190013676
2019-01-10

Apparatus of Controlling Uninterruptible Power Supply for Grid

#44
20180278060
2018-09-27

Battery energy storage systems based fast synchronization machine for power grids

#45
20180052434
2018-02-22

I/O module

#46
20180013284
2018-01-11

Method for controlling an electrical installation from a remote location

#47
20170358980
2017-12-14

Power converter system having active standby mode and method of controlling the same

#48
20170358946
2017-12-14

Method of identifying when to initiate control sequences

#49
20170237256
2017-08-17

Control of a microgrid

#50
20170141574
2017-05-18

Power transmission network

#51
20170005564
2017-01-05

Power converter system having active standby mode and method of controlling the same

#52
20160329709
2016-11-10

Inverter-based stand-alone microgrid control system using time synchronization-based measurement unit

#53
20160285263
2016-09-29

Anti-islanding method for distributed generator in direct current distribution grid and anti-islanding device therefor

#54
20160181864
2016-06-23

Systems and methods for implementing series compensators in static UPS

#55
20160164289
2016-06-09

ELECTRIC-POWER SUPPLY SYSTEM, AND VEHICLE

#56
20150378380
2015-12-31

System and method for synchronizing multiple generators with an electrical power distribution system

#57
20150326160
2015-11-12

Static exciter system for generators

#58
20150137604
2015-05-21

Method to select optimal synchronization source in a multiple uninterruptible power supply system

#59
20140321166
2014-10-30

Connecting an inverter in a solar power plant with shifted potential center point

#60
20140252863
2014-09-11

Alternating current (AC) synchronization for load restoration

#61
20140249686
2014-09-04

System and method of large area microgrid stability controls

#62
20140152101
2014-06-05

Startup control method, grid interconnection apparatus, and controller

#63
20140129204
2014-05-08

State estimation for cooperative electrical grids

#64
20140036963
2014-02-06

Clock synchronization for line differential protection

#65
20140001886
2014-01-02

System and method to perform automatic phase reversal detection

#66
20130121029
2013-05-16

Connecting an inverter in a solar power plant with shifted potential center point

#67
20130002014
2013-01-03

Electrical distribution system

#68
20120187770
2012-07-26

System and method for synchronizing multiple generators with an electrical power distribution system

#69
20120139354
2012-06-07

No break power transfer for power generating system

#70
20110309684
2011-12-22

Apparatus and method for the anti-islanding of power conditioning system

#71
20110128054
2011-06-02

PHASE LOCK LOOP WITH TRACKING FILTER FOR SYNCHRONIZING AN ELECTRIC GRID

#72
20110043045
2011-02-24

Systems and methods for asynchronous sampling data conversion

#73
20100328978
2010-12-30

Variable frequency transformer having multiple horizontal rotary transformers with common controls and voltage infrastructure and method

#74
20100176606
2010-07-15

System and method for fixed frequency power generation

#75
20090198383
2009-08-06

Location determination of power system disturbances based on frequency responses of the system

#76
20080143304
2008-06-19

System and method for controlling microgrid

#77
20080111507
2008-05-15

Digital system for motor bus transfer

#78
20080077286
2008-03-27

Electric-Power Supply System, And Vehicle

#79
20070150114
2007-06-28

Location determination of power system disturbances based on frequency responses of the system