ClassID:

236432

Y02E40/20 - CPC Classification

Classification description:

Technologies for an efficient electrical power generation, transmission or distribution Active power filtering [APF]

Sub-classes:
Recent Application in this class:
#1
20260031623
2026-01-29

UTILIZATION OF DISTRIBUTED GENERATOR INVERTERS AS STATCOM

#2
20250347587
2025-11-13

USER-INSTALLABLE PART INSTALLATION DETECTION TECHNIQUES

#3
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

#4
20240264621
2024-08-08

USE OF DISTRIBUTED GENERATOR (DG) INVERTERS AS STATCOMS FOR DECREASING LINE LOSSES

#5
20240255377
2024-08-01

USER-INSTALLABLE PART INSTALLATION DETECTION TECHNIQUES

#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
20230275571
2023-08-31

Current distortion reduction apparatus

#8
20230251163
2023-08-10

User-installable part installation detection techniques

#9
20220166222
2022-05-26

Utilization of distributed generator inverters as STATCOM

#10
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

#11
20210159697
2021-05-27

Active filter for resonance reduction

#12
20200150707
2020-05-14

Use of distributed generator (DG) inverters as STATCOMs for decreasing line losses

#13
20190245353
2019-08-08

Utilization of distributed generator inverters as STATCOM

#14
20190131790
2019-05-02

Active filter for resonance reduction

#15
20170117748
2017-04-27

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

#16
20170025859
2017-01-26

Control of reactive power in a wind power plant

#17
20140368043
2014-12-18

Systems and methods for grid interactive UPS

#18
20140368042
2014-12-18

Systems and methods for multi-use multi-mode ups

#19
20140063869
2014-03-06

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

#20
20130229837
2013-09-05

Inverter and active power filter system utlizing an auxiliary capacitor module

#21
20130207620
2013-08-15

Adaptive controller for STATCOM to enhance voltage stability

#22
20130148393
2013-06-13

Methods and systems for controlling a power converter

#23
20130107598
2013-05-02

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

#24
20130026841
2013-01-31

Voltage source converter and a method for fault handling thereof

#25
20120306204
2012-12-06

Method and control arrangement for controlling a reactive power source

#26
20120300514
2012-11-29

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

#27
20120236616
2012-09-20

Inverter capable of providing reactive power

#28
20120229086
2012-09-13

CHARGING APPARATUS OF MOBILE VEHICLE

#29
20120205981
2012-08-16

Utilization of distributed generator inverters as STATCOM

#30
20120187924
2012-07-26

Method for regulation of power converters and arrangement for carrying out the method

#31
20120182771
2012-07-19

Converter with active fault current limitation

#32
20120139488
2012-06-07

System and method for providing reactive power using electric car battery

#33
20120127766
2012-05-24

Configurable hybrid converter circuit

#34
20120112825
2012-05-10

MODULES FOR AN ACTIVE MAINS FILTER AND ACTIVE MAINS FILTER

#35
20120112714
2012-05-10

Reactive power compensation in electrical power system

#36
20120092906
2012-04-19

Arrangement for exchanging power

#37
20120086412
2012-04-12

Arrangement For Exchanging Power

#38
20120081939
2012-04-05

Arrangement for exchanging power

#39
20120080420
2012-04-05

Power control circuit and method for stabilizing a power supply

#40
20120069612
2012-03-22

Arrangement for exchanging power

#41
20120069610
2012-03-22

Multilevel voltage source converter

#42
20120063181
2012-03-15

Modular voltage source converter

#43
20120049807
2012-03-01

Method of load leveling in an energy-generating installation

#44
20120049636
2012-03-01

System and method for distribution of inverter VAR support

#45
20120043816
2012-02-23

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

#46
20120038156
2012-02-16

ELECTRICAL ENERGY GENERATING INSTALLATION DRIVEN AT VARIABLE ROTATIONAL SPEEDS, WITH A CONSTANT OUTPUT FREQUENCY, ESPECIALLY A WIND POWER INSTALLATION

#47
20120035774
2012-02-09

Generating apparatus and control method thereof

#48
20120026767
2012-02-02

Power conversion device

#49
20120016530
2012-01-19

METHOD AND SYSTEM FOR MANAGING POWER QUALITY AND EFFICIENCY

#50
20110316492
2011-12-29

Control device reactive power compensator and method

#51
20110305050
2011-12-15

Methods for minimizing double-frequency ripple power in single-phase power conditioners

#52
20110285437
2011-11-24

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

#53
20110264299
2011-10-27

METHOD AND SYSTEM FOR MANAGING POWER QUALITY AND EFFICIENCY

#54
20110260701
2011-10-27

Multilevel converter as reactive power compensator having active

#55
20110255307
2011-10-20

Apparatus and method for controling power quality of power generation system

#56
20110227422
2011-09-22

DC capacitor balancing

#57
20110205768
2011-08-25

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

#58
20110118887
2011-05-19

System stabilizing device

#59
20110109280
2011-05-12

Automatic self-adjusting voltage controller

#60
20110088748
2011-04-21

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

#61
20110074367
2011-03-31

Static compensator and method for controlling thereof

#62
20110032735
2011-02-10

Universal three phase controllers for power converters

#63
20110013441
2011-01-20

Static converter and method for starting up the converter

#64
20100292852
2010-11-18

Wind mill power flow control with dump load and power converter

#65
20100238690
2010-09-23

Methods for minimizing double-frequency ripple power in single-phase power conditioners

#66
20100225287
2010-09-09

Voltage regulator with inductor banks

#67
20100171472
2010-07-08

STATCOM system for providing reactive and/or active power to a power network

#68
20100144537
2010-06-10

SMES SYSTEM, INTERFACE DEVICE FOR SMES AND DRIVING METHOD THEREOF

#69
20100127769
2010-05-27

Active filter having a multilevel topology

#70
20100067271
2010-03-18

Reactive power compensation in solar power system

#71
20100001588
2010-01-07

Multi-function three-phase active power filter

#72
20090309421
2009-12-17

Power compensator and method for providing a black start with that compensator

#73
20090303764
2009-12-10

Universal three phase controllers for power converters

#74
20090243398
2009-10-01

Systems and methods for reducing distortion in a power source using an active harmonics filter

#75
20090115254
2009-05-07

Systems and methods for voltage SAG compensation

#76
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

#77
20090097283
2009-04-16

Methods for minimizing double-frequency ripple power in single-phase power conditioners

#78
20090046399
2009-02-19

Superconducting coil quench detection method and device, and superconducting power storage unit

#79
20090024255
2009-01-22

Utility interactive inverter with VAR dispatch capabilities

#80
20090021964
2009-01-22

Modularized active power filter

#81
20080315685
2008-12-25

Energy converter system with reactive-power-management

#82
20080303680
2008-12-11

Display for Active Power Filter

#83
20080252143
2008-10-16

Method and device for injecting reactive current during a mains supply voltage dip

#84
20080232143
2008-09-25

Method of designing a static synchronous compensator based on passivity-based control

#85
20080219035
2008-09-11

Active power filter

#86
20080174183
2008-07-24

Active filter

#87
20080157598
2008-07-03

Power converting apparatus

#88
20080088183
2008-04-17

Integrated closed loop control method and apparatus for combined uninterruptible power supply and generator system

#89
20070296381
2007-12-27

Method of operating a converter circuit

#90
20070216373
2007-09-20

Universal three phase controllers for power converters

#91
20070147098
2007-06-28

Power converting apparatus

#92
20070109823
2007-05-17

Multi-level active filter

#93
20070076452
2007-04-05

Voltage regulator with inductor banks

#94
20070076451
2007-04-05

Active power conditioner for AC load characteristics

#95
20070014132
2007-01-18

Comprehensive power quality controller for substation in power system

#96
20060202636
2006-09-14

Power conversion and voltage sag correction with regenerative loads

#97
20060131960
2006-06-22

Power converter

#98
20060044850
2006-03-02

Active type harmonic suppression apparatus

#99
20060044847
2006-03-02

Harmonic control and regulation system for harmonic neutralized frequency changer

#100
20060043941
2006-03-02

Reactive power compensator

#101
20060033479
2006-02-16

Three-phase three-wire active power filter

#102
20050253564
2005-11-17

Active power filter apparatus with reduced va rating for neutral current suppression

#103
20050212494
2005-09-29

Reactive power compensator device

#104
20050200337
2005-09-15

Power converter circuit and associated triggering method for generators with dynamically variable power output

#105
20050117374
2005-06-02

Wide bandwidth AC-DC power converter

#106
20050116691
2005-06-02

Equipment and method for exchanging power, in shunt connection, with an electric power network, and use of such equipment

#107
20050083627
2005-04-21

Hybrid parallel active power filter for electrified railway system

#108
20050040655
2005-02-24

Continuous reactive power support for wind turbine generators

#109
20050035815
2005-02-17

Active filter for multi-phase AC power system

#110
20050024131
2005-02-03

Current control method and apparatus for active power filters

#111
20050015182
2005-01-20

Hybrid power flow controller and method

#112
20050012395
2005-01-20

Integrated closed loop control method and apparatus for combined uninterruptible power supply and generator system