CN115606084A - 一种逆变器并联系统中的环流抑制方法及装置 - Google Patents

一种逆变器并联系统中的环流抑制方法及装置 Download PDF

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Publication number
CN115606084A
CN115606084A CN202080031650.6A CN202080031650A CN115606084A CN 115606084 A CN115606084 A CN 115606084A CN 202080031650 A CN202080031650 A CN 202080031650A CN 115606084 A CN115606084 A CN 115606084A
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CN
China
Prior art keywords
inverter
voltage
mode
current
common
Prior art date
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Pending
Application number
CN202080031650.6A
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English (en)
Inventor
于心宇
辛凯
徐志武
张彦忠
李俊杰
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Huawei Digital Power Technologies Co Ltd
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Huawei Digital Power Technologies Co 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 Huawei Digital Power Technologies Co Ltd filed Critical Huawei Digital Power Technologies Co Ltd
Publication of CN115606084A publication Critical patent/CN115606084A/zh
Pending legal-status Critical Current

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    • 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
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • H02M1/126—Arrangements for reducing harmonics from ac input or output using passive filters
    • 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
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • H02M1/123—Suppression of common mode voltage or current
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • H02M7/493—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 the static converters being arranged for operation in parallel

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

一种逆变器并联系统中的环流抑制方法及装置，涉及供电领域，能够抑制逆变器并联系统中的环流，提高逆变器元器件的可靠性。获取逆变器并联系统中每个逆变器的共模电流和共模注入电压(S801)；基于每个逆变器的共模电流和预设共模阻尼系数，确定每个逆变器的虚拟阻尼电压(S802)；其中，若以电流流出逆变器的方向为正方向，则预设共模阻尼系数为负值；若以电流流入逆变器的方向为正方向，则预设共模阻尼系数为正值；在每个逆变器的共模注入电压上叠加虚拟阻尼电压，得到每个逆变器的目标共模电压(S803)；基于每个逆变器的目标共模电压与每个逆变器的差模电压，控制每个逆变器运行(S804)。

Description

PCT国内申请，说明书已公开。

Claims (21)

  1. PCT国内申请，权利要求书已公开。
CN202080031650.6A 2020-12-31 2020-12-31 一种逆变器并联系统中的环流抑制方法及装置 Pending CN115606084A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/142011 WO2022141365A1 (zh) 2020-12-31 2020-12-31 一种逆变器并联系统中的环流抑制方法及装置

Publications (1)

Publication Number Publication Date
CN115606084A true CN115606084A (zh) 2023-01-13

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CN202080031650.6A Pending CN115606084A (zh) 2020-12-31 2020-12-31 一种逆变器并联系统中的环流抑制方法及装置

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US (1) US20230318440A1 (zh)
EP (1) EP4246794A4 (zh)
CN (1) CN115606084A (zh)
WO (1) WO2022141365A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117914007B (zh) * 2024-03-20 2024-06-04 国网湖北省电力有限公司电力科学研究院 一种构网型储能系统运行监测系统及其监测方法

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Publication number Priority date Publication date Assignee Title
US7564703B1 (en) * 2007-04-17 2009-07-21 Rockwell Automation Technologies, Inc. Method and apparatus for synchronized parallel operation of PWM inverters with limited circulating current
CN102545677B (zh) * 2012-02-15 2014-04-02 哈尔滨工业大学 采用耦合电抗器的并联型三相并网逆变器的控制方法
FI125100B (en) * 2013-11-14 2015-06-15 Abb Technology Oy Method and apparatus for minimizing inverter current or common-mode voltage
CN104201920A (zh) * 2014-09-19 2014-12-10 阳光电源股份有限公司 共模回路、三相逆变器及光伏发电系统
US9450479B2 (en) * 2015-02-20 2016-09-20 Ge Energy Power Conversion Technology Ltd Systems and methods to optimize active current sharing of parallel power converters
CN109302094A (zh) * 2018-10-10 2019-02-01 山东大学 非隔离型模块化三电平并联逆变器、控制方法及系统
CN111342646B (zh) * 2020-03-04 2021-04-06 华北电力大学 一种模块化多电平变换器的环流抑制方法及系统
CN211791315U (zh) * 2020-03-11 2020-10-27 杭州禾迈电力电子股份有限公司 一种微逆系统逆变拓扑结构

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WO2022141365A1 (zh) 2022-07-07
US20230318440A1 (en) 2023-10-05
EP4246794A4 (en) 2024-01-10
EP4246794A1 (en) 2023-09-20

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