ClassID:

216925

H02J3/1857 - CPC Classification

Classification description:

Circuit arrangements for ac mains or ac distribution networks; Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters wherein such bridge converter is a multilevel converter

Recent Application in this class:
#1
20250343419
2025-11-06

MULTI-LEVEL MEDIUM VOLTAGE DATA CENTER STATIC SYNCHRONOUS COMPENSATOR (DCSTATCOM) FOR ACTIVE AND REACTIVE POWER CONTROL OF DATA CENTERS CONNECTED WITH GRID ENERGY STORAGE AND SMART GREEN DISTRIBUTED ENERGY SOURCES

#2
20250180611
2025-06-05

CONDITION MONITORING OF ELECTRONIC COMPONENTS IN ELECTRICAL POWER SYSTEMS

#3
20240106236
2024-03-28

MULTI-LEVEL CONVERTER-TYPE STATCOM SYSTEM AND OPERATION METHOD

#4
20240055858
2024-02-15

METHOD AND CIRCUIT FOR AN INTEGRATED DC CONVERTER IN AN AC BATTERY

#5
20230411963
2023-12-21

REACTIVE POWER COMPENSATION DEVICE

#6
20230318299
2023-10-05

Multi-level medium voltage data center static synchronous compensator (DCSTATCOM) for active and reactive power control of data centers connected with grid energy storage and smart green distributed energy sources

#7
20230299583
2023-09-21

Fault-responsive power system and method using active line current balancing

#8
20220149626
2022-05-12

Arrangement having a converter

#9
20220045610
2022-02-10

Buck boost converter cell for MMC

#10
20220014088
2022-01-13

SYSTEMS AND METHODS FOR MITIGATING HARMONICS IN ELECTRICAL SYSTEMS BY USING ACTIVE AND PASSIVE FILTERING TECHNIQUES

#11
20210384730
2021-12-09

Multi-level medium voltage data center static synchronous compensator (DCSTATCOM) for active and reactive power control of data centers connected with grid energy storage and smart green distributed energy sources

#12
20210359518
2021-11-18

STATCOM arrangement without phase reactors

#13
20210288591
2021-09-16

Modular multi-point converter with modular storage units

#14
20210021129
2021-01-21

Power control system and control device

#15
20200119659
2020-04-16

Power conversion device

#16
20200112172
2020-04-09

Reactive power compensation device and method for controlling the same

#17
20200076323
2020-03-05

Power conversion device and test method thereof

#18
20200067310
2020-02-27

Transmission device for energy transmission between multiple electrical energy networks

#19
20200028442
2020-01-23

Early detection of faults in power transmission lines

#20
20190334453
2019-10-31

Modular multilevel converter cell with integrated current sensor

#21
20190305557
2019-10-03

Reactive power compensator, discharging system, and operating method of the discharging system

#22
20190288509
2019-09-19

Voltage balancing in a Modular Multilevel Converter having delta configuration

#23
20190074692
2019-03-07

Control feedback loop design with fast transient response for multi-level converter

#24
20180269684
2018-09-20

Multi-level medium voltage data center static synchronous compensator (DCSTATCOM) for active and reactive power control of data centers connected with grid energy storage and smart

#25
20180269682
2018-09-20

Multi-level cascaded H-bridge STATCOM circulating cooling fluid within enclosure

#26
20180241213
2018-08-23

Electrical assembly for a power transmission network

#27
20180205229
2018-07-19

Power-generating system with improved treatment of charging impacts, load-shedding and harmonics

#28
20180152021
2018-05-31

Static synchronous compensator device and related method of phase balancing a three-phase power system

#29
20180145510
2018-05-24

Electrical arrangement comprising sub-modules

#30
20180138826
2018-05-17

Electric power conversion device and electric power system

#31
20180123444
2018-05-03

Method and device for damping voltage harmonics in a multilevel power converter

#32
20180054144
2018-02-22

Method and device for damping voltage harmonics in a multilevel power converter

#33
20170338654
2017-11-23

Interface arrangement between an alternating current power system and a direct current power system with control of converter valve for fault protection

#34
20170294853
2017-10-12

Switching scheme for static synchronous compensators using cascaded H-bridge converters

#35
20170271997
2017-09-21

Standby and charging of modular multilevel converters

#36
20170170658
2017-06-15

Energy storage system comprising a modular multi-level converter

#37
20170117748
2017-04-27

Systems and methods for mitigating harmonics in electrical systems by using active and passive filtering techniques

#38
20170108888
2017-04-20

Converter for symmetrical reactive power compensation, and a method for controlling same

#39
20160365807
2016-12-15

Power conversion device with a plurality of series circuits

#40
20160336874
2016-11-17

Electric power conversion device

#41
20160308357
2016-10-20

DIFFERENTIATED CONTROL METHOD OF THE CASCADED ACTIVE POWER FILTER

#42
20160241125
2016-08-18

Submodule identification in a modular multilevel converter by means of measuring signal propagation times from the central controller

#43
20160149481
2016-05-26

Methods and devices for power compensation

#44
20160126737
2016-05-05

Converter arrangement for power compensation and a method for controlling a power converter

#45
20160084229
2016-03-24

Method and control arrangement for controlling a reactive power source

#46
20150171726
2015-06-18

Controlling a modular converter with a plurality of converter modules

#47
20150155712
2015-06-04

Multi-level medium voltage data center static synchronous compensator (DCSTATCOM) for active and reactive power control of data centers connected with grid energy storage and smart green distributed energy sources

#48
20150029764
2015-01-29

Transformer-less unified power flow controller

#49
20140218986
2014-08-07

Multilevel converter and a method for controlling multilevel converter including balancing cell voltages

#50
20140169048
2014-06-19

Power conversion device with a plurality of series circuits

#51
20140133198
2014-05-15

Multilevel reactive power compensator

#52
20140103887
2014-04-17

Power converter and method for controlling same

#53
20140063869
2014-03-06

Methods of balancing reactive power in multi-level motor drives with active front ends

#54
20130229837
2013-09-05

Inverter and active power filter system utlizing an auxiliary capacitor module

#55
20130223115
2013-08-29

Power conversion device with a daisy chain configuration communication control unit

#56
20130207623
2013-08-15

Power supply device for a nonlinear, time-varying load

#57
20130176757
2013-07-11

Reactive energy compensator and associated method for balancing half-bus voltages

#58
20130128636
2013-05-23

HVDC converter including fullbridge cells for handling a DC side short circuit

#59
20130094264
2013-04-18

Static VAR compensator with multilevel converter

#60
20130026841
2013-01-31

Voltage source converter and a method for fault handling thereof

#61
20120306204
2012-12-06

Method and control arrangement for controlling a reactive power source

#62
20120300514
2012-11-29

Method and device for determining a control scheme for an active power filter

#63
20120182771
2012-07-19

Converter with active fault current limitation

#64
20120127766
2012-05-24

Configurable hybrid converter circuit

#65
20120092906
2012-04-19

Arrangement for exchanging power

#66
20120081939
2012-04-05

Arrangement for exchanging power

#67
20120063181
2012-03-15

Modular voltage source converter

#68
20120043816
2012-02-23

Submodule for a multi-stage power converter having additional energy storage device

#69
20120026767
2012-02-02

Power conversion device

#70
20110285437
2011-11-24

System and a method for controlling at least one voltage converter having a plurality of cells in series

#71
20110260701
2011-10-27

Multilevel converter as reactive power compensator having active

#72
20110205768
2011-08-25

Chain-link converter, method for starting chain-link converter and static compensator system

#73
20110013441
2011-01-20

Static converter and method for starting up the converter

#74
20100127769
2010-05-27

Active filter having a multilevel topology

#75
20090102436
2009-04-23

Controller for the three-phase cascade multilevel converter used as shunt active filter in unbalanced operation with guaranteed capacitors voltages balance

#76
20080157598
2008-07-03

Power converting apparatus

#77
20070147098
2007-06-28

Power converting apparatus

#78
20070109823
2007-05-17

Multi-level active filter

#79
20060131960
2006-06-22

Power converter

#80
20060044847
2006-03-02

Harmonic control and regulation system for harmonic neutralized frequency changer

#81
17306109
2022-04-05

Zero-sequence current balancer with a real power injector for a three-phase power system