Patents-Review.com
ClassID:

217908 ⎘

H02M5/451 - CPC Classification

Classification description:

Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or frequency

Recent Application in this class:
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SOFT-START METHOD, DEVICE, AND SYSTEM OF HDT BASED ON UNBYPASSING ITS VOLTAGE-COMPENSATING CONVERTER

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Parallel operation of load commutated inverters

 #3
20210336550
2021-10-28

Method for pre-charging a cascade converter and cascade converter

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20210175712
2021-06-10

Electrical power distribution network and process

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20210167692
2021-06-03

Power converter apparatus provided with low-pass filter circuit for reducing switching frequency components

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2020-05-07

DUAL-COMPARATOR CURRENT-MODE RECTIFIER

 #7
20190312430
2019-10-10

Electrical power distribution network and process

 #8
20190312425
2019-10-10

Power converter with ground fault detection function and fault detection method

 #9
20190273446
2019-09-05

Switching an electrical voltage source converter

 #10
20180367024
2018-12-20

Power conversion device having a control unit that outputs based on detected inductor current

 #11
20170279365
2017-09-28

Controlling a load commutated converter during undervoltage

 #12
20170163158
2017-06-08

Direct current transmission inverter side frequency control method

 #13
20150311781
2015-10-29

Detection of islanding state in electricity network

 #14
20150194885
2015-07-09

Method for producing an output voltage and assembly for performing the method

 #15
20140217947
2014-08-07

SHORT CIRCUIT SAFE RECTIFIER STAGE FOR A SUBSEA POWER GRID

 #16
20130162047
2013-06-27

Methods and systems for controlling an intra-plant voltage level

 #17
20130057297
2013-03-07

Method and apparatus for detecting power converter capacitor degradation using negative sequence currents

 #18
20130051091
2013-02-28

Power conversion system and method

 #19
20120271572
2012-10-25

Variable frequency drive and methods for filter capacitor fault detection

 #20
20120043817
2012-02-23

Drive system for a facility having an alternating-current isolated network

 #21
20110292696
2011-12-01

Variable frequency drive and methods for filter capacitor fault detection

 #22
20100308892
2010-12-09

State quantity detection method in power converting apparatus and power converting apparatus

 #23
20080262750
2008-10-23

Power conversion apparatus and method of estimating power cycle life

 #24
20080232143
2008-09-25

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

 #25
20050204760
2005-09-22

Refrigerating apparatus and inverter device