ClassID:

216919

H02J3/1814 - CPC Classification

Classification description:

Circuit arrangements for ac mains or ac distribution networks; Arrangements for adjusting, eliminating or compensating reactive power in networks using series compensators wherein al least one reactive element is actively controlled by a bridge converter, e.g. unified power flow controllers [UPFC]

Recent Application in this class:
#1
20230420986
2023-12-28

INJECTION UNIT LEVEL BYPASS

#2
20230246442
2023-08-03

Converter arrangement and method of operation for said converter arrangement

#3
20230155383
2023-05-18

Measurement-based dynamic modeling of an electrical network

#4
20230087549
2023-03-23

ELECTRICAL GRID TRANSFORMER SYSTEM

#5
20220271536
2022-08-25

DEVICE FOR CONNECTING TWO ALTERNATING VOLTAGE NETWORKS AND METHOD FOR OPERATING THE DEVICE

#6
20220115869
2022-04-14

Measurement-based dynamic modeling of an electrical network

#7
20220069582
2022-03-03

Temporal balancing of electrical stress on FACTS devices in FACTS based distributed impedance injection units

#8
20210391722
2021-12-16

Reactive power and voltage control method

#9
20210384727
2021-12-09

Modular time synchronized injection modules

#10
20210184469
2021-06-17

Method for controlling a wind power installation

#11
20210172420
2021-06-10

Method for controlling a wind power installation or a wind farm

#12
20210151986
2021-05-20

Adaptive control technique for stability of impedance injection unit

#13
20210083480
2021-03-18

Reactive power control method, device and system

#14
20210057911
2021-02-25

ARRANGEMENT FOR REGULATING A POWER FLOW IN AN AC VOLTAGE GRID AND METHOD FOR PROTECTING THE ARRANGEMENT

#15
20210028713
2021-01-28

System and method for FACTS device bypass mode operation and diagnostics

#16
20200274459
2020-08-27

Feeding electric power from a photovoltaic system into an AC system having a low short-circuit capacity

#17
20200274359
2020-08-27

SERIES COMPENSATION DEVICE

#18
20200185901
2020-06-11

Method and apparatus for suppressing impact of compensator on line distance protection

#19
20200076323
2020-03-05

Power conversion device and test method thereof

#20
20200067314
2020-02-27

Measurement-based dynamic modeling of an electrical network

#21
20200028442
2020-01-23

Early detection of faults in power transmission lines

#22
20190305560
2019-10-03

Medium and high voltage energy conversion system

#23
20190237971
2019-08-01

Agile deployment of optimized power flow control system on the grid

#24
20190157871
2019-05-23

Series compensation device applicable to double-circuit line

#25
20190157868
2019-05-23

Phase compensation system

#26
20190004097
2019-01-03

General load flow calculation method for power systems with unified power flow controller

#27
20180358808
2018-12-13

Device and method for controlling a load flow in an alternating-voltage network

#28
20180316190
2018-11-01

Unified power flow controller and control method thereof

#29
20180309298
2018-10-25

Bipolar VSC-HVDC and UPFC hybrid topology and an operation method thereof

#30
20180294648
2018-10-11

Voltage agnostic power reactor

#31
20180287421
2018-10-04

System and method for distributed grid control with sub-cyclic local response capability

#32
20180198280
2018-07-12

Phase compensation system

#33
20180138702
2018-05-17

Systems and methods for voltage regulation using split-conductors with loop current reduction

#34
20180090938
2018-03-29

Method for regulating an electrical power circuit and an electrical power regulating apparatus

#35
20180084663
2018-03-22

MODULAR, SCALABLE, MULTI-FUNCTION, POWER QUALITY SYSTEM FOR UTILITY NETWORKS

#36
20180083447
2018-03-22

Power compensation apparatus and method of controlling the same

#37
20170256944
2017-09-07

Power control circuit and method for stabilizing a power supply

#38
20170235322
2017-08-17

Control method of a virtual generator

#39
20170235286
2017-08-17

System and method for distributed grid control with sub-cyclic local response capability

#40
20170199502
2017-07-13

Line power control method and system for unified power flow controller

#41
20170179727
2017-06-22

Power generation system of a multi-converter wind turbine and control method thereof

#42
20170149244
2017-05-25

Unified power flow controller utilizing energy saving devices at a point of power consumption

#43
20150349629
2015-12-03

Multi-function power regulator for prioritizing functions and allocating resources thereof

#44
20150333655
2015-11-19

Voltage adjusting apparatus

#45
20150188401
2015-07-02

Method and apparatus for controlling low voltage ride through of photovoltaic grid-connected inverter

#46
20150162848
2015-06-11

Method and device for controlling a multilevel converter

#47
20150162749
2015-06-11

Method and apparatus for power plant dynamic var regulation and transient stability improvement

#48
20150115905
2015-04-30

Power compensator

#49
20150081131
2015-03-19

Modular, scalable, multi-function, power quality system for utility networks

#50
20150029764
2015-01-29

Transformer-less unified power flow controller

#51
20140379152
2014-12-25

Coordinated control method of generator and SVC for improving power throughput and controller thereof

#52
20140375283
2014-12-25

Controlling method and system for supporting active power factor correction loads

#53
20140266145
2014-09-18

Power flow control apparatus

#54
20140192567
2014-07-10

Methods for controlling electrical inverters and electrical inverters and systems using the same

#55
20140104896
2014-04-17

Regenerative voltage doubler rectifier, voltage sag/swell correction apparatus and operating methods

#56
20130328398
2013-12-12

Distributed power supply system

#57
20130279211
2013-10-24

Modular multilevel power electronic converter having selectively definable circulation path

#58
20130107598
2013-05-02

System and method for Var injection at a distributed power generation source

#59
20130076143
2013-03-28

Uninterruptible power system

#60
20130051091
2013-02-28

Power conversion system and method

#61
20130002025
2013-01-03

UPS system and method of supplying power to non-linear load

#62
20120080420
2012-04-05

Power control circuit and method for stabilizing a power supply

#63
20110215648
2011-09-08

Uninterrupted power supply unit

#64
20110088748
2011-04-21

Grid-interactive photovoltaic generation system with power quality control and energy saving

#65
20110032652
2011-02-10

Magnetic energy recovery switch having protective circuit

#66
20110019443
2011-01-27

SERIES VOLTAGE COMPENSATOR AND METHOD FOR SERIES VOLTAGE COMPENSATION IN ELECTRICAL GENERATORS

#67
20100082177
2010-04-01

System and method for controlling multiple facts

#68
20100026275
2010-02-04

Flux control system for active voltage conditioning

#69
20090182518
2009-07-16

Method of calculating power flow solution of a power grid that includes generalized power flow controllers

#70
20090167088
2009-07-02

Method and device for preventing the disconnection of an electric power generating plant from the electrical grid

#71
20090134850
2009-05-28

Apparatus and method for optimization of power flow control between different paths of a high voltage network in dependence of a disturbance in the network

#72
20080315684
2008-12-25

Square-wave modulated voltage dip restorer

#73
20080278976
2008-11-13

Dynamic voltage sag correction

#74
20080278121
2008-11-13

Electrical energy transmission device

#75
20080265848
2008-10-30

Apparatus and method for improved power flow control in a high voltage network

#76
20080258559
2008-10-23

Apparatus and method for improved power flow control in a high voltage network

#77
20080231252
2008-09-25

Sag-Swell and Outage Generator for Performance Test of Custom Power Devices

#78
20080177425
2008-07-24

Damping electromechanical oscillations in power systems

#79
20080157598
2008-07-03

Power converting apparatus

#80
20080143305
2008-06-19

Electric power flow control

#81
20070250217
2007-10-25

System and method for automatically operating UPFC (unified power flow controller) connected to SCADA (supervisory control and data acquisition)

#82
20070164613
2007-07-19

Power supply apparatus

#83
20060229767
2006-10-12

Method for calculating power flow solution of a power transmission network that includes unified power flow controllers

#84
20060131960
2006-06-22

Power converter

#85
20060044847
2006-03-02

Harmonic control and regulation system for harmonic neutralized frequency changer

#86
20060044720
2006-03-02

Apparatus and method for modifying a power flow in a section of an electric power line

#87
20050141157
2005-06-30

Power converter with voltage and current fault setting

#88
20050073200
2005-04-07

Distributed floating series active impendances for power transmission systems

#89
20050071050
2005-03-31

Power flow controller responsive to power circulation demand for optimizing power transfer

#90
20050068699
2005-03-31

Power-supply device

#91
20050015182
2005-01-20

Hybrid power flow controller and method

#92
18404310
2025-06-03

Method and apparatus for detection of arbitrarily located single-phase open circuits by inverter-based resources

#93
16800999
2022-05-24

Integration of a power flow control unit