IN2014CH01439A - - Google Patents

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Publication number
IN2014CH01439A
IN2014CH01439A IN1439CH2014A IN2014CH01439A IN 2014CH01439 A IN2014CH01439 A IN 2014CH01439A IN 1439CH2014 A IN1439CH2014 A IN 1439CH2014A IN 2014CH01439 A IN2014CH01439 A IN 2014CH01439A
Authority
IN
India
Prior art keywords
capacitor
flying
redundant states
load current
utilized
Prior art date
Application number
Inventor
Qingyun Chen
Stefan Schroeder
Original Assignee
Ge Energy Power Conversion Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ge Energy Power Conversion Technology Ltd filed Critical Ge Energy Power Conversion Technology Ltd
Publication of IN2014CH01439A publication Critical patent/IN2014CH01439A/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4833—Capacitor voltage balancing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4837—Flying capacitor converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0009—Devices or circuits for detecting current in a converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0012—Control circuits using digital or numerical techniques
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0095—Hybrid converter topologies, e.g. NPC mixed with flying capacitor, thyristor converter mixed with MMC or charge pump mixed with buck
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/487—Neutral point clamped inverters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

A method of operating a flying capacitor multilevel converter having a direct current link and a plurality of phase legs each having a plurality of flying capacitors includes employing redundant states to balance flying capacitor voltages by charging or discharging flying capacitors. The redundant states are employed by obtaining a load current of the flying capacitor multilevel converter. If a load current value is lower than a threshold value then a capacitor current of a phase terminal capacitor is utilized to determine redundant states else a load current direction is utilized to determine the redundant states. Fig.6
IN1439CH2014 2013-03-29 2014-03-19 IN2014CH01439A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/853,335 US9246407B2 (en) 2013-03-29 2013-03-29 Voltage balancing system and method for multilevel converters

Publications (1)

Publication Number Publication Date
IN2014CH01439A true IN2014CH01439A (en) 2015-05-29

Family

ID=50382374

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1439CH2014 IN2014CH01439A (en) 2013-03-29 2014-03-19

Country Status (6)

Country Link
US (1) US9246407B2 (en)
EP (1) EP2784926B1 (en)
CN (1) CN104079196B (en)
BR (1) BR102014007746B1 (en)
CA (1) CA2845956C (en)
IN (1) IN2014CH01439A (en)

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US9941813B2 (en) 2013-03-14 2018-04-10 Solaredge Technologies Ltd. High frequency multi-level inverter
US9240731B2 (en) 2013-03-18 2016-01-19 Rockwell Automation Technologies, Inc. Power cell bypass method and apparatus for multilevel inverter
JP6206118B2 (en) * 2013-08-02 2017-10-04 株式会社明電舎 Multi-level power converter
US9520800B2 (en) 2014-01-09 2016-12-13 Rockwell Automation Technologies, Inc. Multilevel converter systems and methods with reduced common mode voltage
US9325252B2 (en) * 2014-01-13 2016-04-26 Rockwell Automation Technologies, Inc. Multilevel converter systems and sinusoidal pulse width modulation methods
CN104811073B (en) * 2014-01-24 2019-05-31 通用电气能源电能变换科技有限公司 Converter module, device, system and correlation technique
US9318974B2 (en) * 2014-03-26 2016-04-19 Solaredge Technologies Ltd. Multi-level inverter with flying capacitor topology
WO2015165716A1 (en) * 2014-04-29 2015-11-05 Abb Technology Ag Discharging dc link capacitors in an npc converter
US9467065B2 (en) * 2014-12-30 2016-10-11 General Electric Company Method and apparatus for controlling a multilevel soft switching power converter
US9559541B2 (en) 2015-01-15 2017-01-31 Rockwell Automation Technologies, Inc. Modular multilevel converter and charging circuit therefor
US10732685B2 (en) * 2015-02-27 2020-08-04 Ge Energy Power Conversion Technology Limited System and method for operating power converters
US9641098B2 (en) * 2015-03-12 2017-05-02 Futurewei Technologies, Inc. Multi-level inverter apparatus and method
US9748862B2 (en) 2015-05-13 2017-08-29 Rockwell Automation Technologies, Inc. Sparse matrix multilevel actively clamped power converter
CN106329975B (en) * 2015-07-10 2019-02-12 台达电子企业管理（上海）有限公司 Five LCU level conversion units
CN106329974B (en) * 2015-07-10 2018-12-21 台达电子企业管理（上海）有限公司 Five LCU level conversion units
CN105162345B (en) * 2015-09-16 2019-01-25 上海交通大学 A kind of four electrical level DC-AC converters of direct-current micro-grid
CN105262357B (en) * 2015-09-28 2017-12-22 阳光电源股份有限公司 A kind of method and device for controlling flying capacitor voltage in multi-electrical level inverter circuit
US9991820B2 (en) 2016-03-04 2018-06-05 Caterpillar Inc. Multi-level converter and method of operating same
US9970417B2 (en) * 2016-04-14 2018-05-15 General Electric Company Wind converter control for weak grid
CN107306083B (en) * 2016-04-22 2019-09-20 台达电子企业管理（上海）有限公司 The voltage balancing control device and voltage balancing control method of striding capacitance
CN106230291B (en) 2016-07-25 2018-10-02 阳光电源股份有限公司 A kind of invertor operation control method and device
EP3676946B1 (en) * 2017-09-25 2021-12-29 Huawei Digital Power Technologies Co., Ltd. Hybrid multilevel inverters
JP7008494B2 (en) * 2017-12-19 2022-01-25 パナソニックＩｐマネジメント株式会社 Power converter
CN108494229B (en) * 2018-06-01 2024-04-16 上海寰晟电力能源科技有限公司 AC/DC universal power router topology and control method thereof
CN110011327A (en) * 2019-03-29 2019-07-12 浙江大学 A kind of modular multilevel circuit based on Active Power Filter-APF
TWI721621B (en) 2019-10-29 2021-03-11 財團法人工業技術研究院 Three-phase expandable ac system based on battery reconfiguration and control method thereof
CN112994494B (en) * 2019-12-13 2022-04-19 台达电子企业管理（上海）有限公司 Voltage balance control method suitable for flying capacitor multi-level conversion circuit
WO2022187647A1 (en) * 2021-03-05 2022-09-09 The Trustees Of Columbia University In The City Of New York Systems and methods for stacked multi-level power converter implementations with linear scaling
US11342878B1 (en) 2021-04-09 2022-05-24 Rockwell Automation Technologies, Inc. Regenerative medium voltage drive (Cascaded H Bridge) with reduced number of sensors
EP4106176A1 (en) 2021-06-18 2022-12-21 B&R Industrial Automation GmbH Method of operating a flying capacitor multi-level converter
US11936291B2 (en) * 2021-11-08 2024-03-19 Psemi Corporation Controlling charge-balance and transients in a multi-level power converter

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Also Published As

Publication number Publication date
EP2784926B1 (en) 2017-09-27
CN104079196B (en) 2018-04-13
US9246407B2 (en) 2016-01-26
US20140293667A1 (en) 2014-10-02
CA2845956A1 (en) 2014-09-29
EP2784926A3 (en) 2014-11-05
EP2784926A2 (en) 2014-10-01
CN104079196A (en) 2014-10-01
BR102014007746B1 (en) 2021-02-23
CA2845956C (en) 2021-09-14

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