JP7103524B2 - 多重電力変換システム - Google Patents
多重電力変換システム Download PDFInfo
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- JP7103524B2 JP7103524B2 JP2021534458A JP2021534458A JP7103524B2 JP 7103524 B2 JP7103524 B2 JP 7103524B2 JP 2021534458 A JP2021534458 A JP 2021534458A JP 2021534458 A JP2021534458 A JP 2021534458A JP 7103524 B2 JP7103524 B2 JP 7103524B2
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- unit
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- unit power
- power converter
- conversion system
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- 238000006243 chemical reaction Methods 0.000 title claims description 47
- 230000007935 neutral effect Effects 0.000 claims description 68
- 238000001514 detection method Methods 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 24
- 239000003990 capacitor Substances 0.000 description 18
- 230000006870 function Effects 0.000 description 12
- 239000004065 semiconductor Substances 0.000 description 6
- 238000004804 winding Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
-
- 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
-
- 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
-
- 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
- H02M7/53—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 using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Description
図1は実施の形態1における多重電力変換システムの構成図である。
図2は実施の形態1における多重電力変換システムの単位電力変換器の第1例の構成図である。
図3は実施の形態1における多重電力変換システムの単位電力変換器の第2例の構成図である。
図4は実施の形態1における多重電力変換システムの制御装置の動作の概要を説明するためのフローチャートである。
図5は実施の形態1における多重電力変換システムの制御装置のハードウェア構成図である。
図6は実施の形態2における多重電力変換システムの構成図である。図7は実施の形態2における多重電力変換システムの要部の構成図である。なお、実施の形態1の部分と同一又は相当部分には同一符号が付される。当該部分の説明は省略される。
図8は実施の形態3における多重電力変換システムの要部の構成図である。なお、実施の形態2の部分と同一又は相当部分には同一符号が付される。当該部分の説明は省略される。
図9は実施の形態4における多重電力変換システムの要部の構成図である。なお、実施の形態2の部分と同一又は相当部分には同一符号が付される。当該部分の説明は省略される。
図10は実施の形態5における多重電力変換システムの要部の構成図である。なお、実施の形態4の部分と同一又は相当部分には同一符号が付される。当該部分の説明は省略される。
図11は実施の形態6における多重電力変換システムの要部の構成図である。なお、実施の形態4の部分と同一又は相当部分には同一符号が付される。当該部分の説明は省略される。
図12は実施の形態7における多重電力変換システムの要部の構成図である。なお、実施の形態2の部分と同一又は相当部分には同一符号が付される。当該部分の説明は省略される。
図13は実施の形態8における多重電力変換システムの要部の構成図である。なお、実施の形態1の部分と同一又は相当部分には同一符号が付される。当該部分の説明は省略される。
Claims (3)
- 互いの直流正側が接続され、互いの直流負側が接続され、互いの直流中性点が短絡されない複数の単位電力変換器と、
前記複数の単位電力変換器の直流中性点にそれぞれ接続された複数の単位抵抗と、
前記複数の単位抵抗は2つ以上の複数の組に分けられ、
前記複数の組は、その各々の組に属する単位抵抗の、単位電力変換器の直流中性点に接続されない一端同士を互いに接続した電位検出点を、各々備え、
前記複数の組の各々が持つ電位検出点の間の電圧を検出する電圧検出手段と、
を備えた多重電力変換システム。 - 前記電圧検出手段に検出された電圧に基づいて、保護動作を行う制御装置、
を備えた請求項1に記載の多重電力変換システム。 - 前記制御装置は、前記電圧検出手段による電圧検出値に基づいて、単位電力変換器の少なくとも1台を構成するすべてのスイッチング素子群のゲートにオフ信号を与える請求項2に記載の多重電力変換システム。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2019/028870 WO2021014573A1 (ja) | 2019-07-23 | 2019-07-23 | 多重電力変換システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2021014573A1 JPWO2021014573A1 (ja) | 2021-11-18 |
JP7103524B2 true JP7103524B2 (ja) | 2022-07-20 |
Family
ID=74193540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021534458A Active JP7103524B2 (ja) | 2019-07-23 | 2019-07-23 | 多重電力変換システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220069698A1 (ja) |
EP (1) | EP4007152A4 (ja) |
JP (1) | JP7103524B2 (ja) |
CN (1) | CN113228492A (ja) |
WO (1) | WO2021014573A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003070263A (ja) | 2001-08-23 | 2003-03-07 | Hitachi Ltd | 3レベルインバータ装置 |
JP2008011606A (ja) | 2006-06-28 | 2008-01-17 | Hitachi Ltd | 電力変換装置及び電力変換方法 |
JP2012100401A (ja) | 2010-11-01 | 2012-05-24 | Hitachi Ltd | 電力変換装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06319263A (ja) * | 1991-07-26 | 1994-11-15 | Hitachi Ltd | インバータ装置 |
JP2005185003A (ja) * | 2003-12-19 | 2005-07-07 | Yaskawa Electric Corp | 電力変換装置の保護装置 |
US7573732B2 (en) * | 2007-05-25 | 2009-08-11 | General Electric Company | Protective circuit and method for multi-level converter |
US8564916B2 (en) * | 2010-02-16 | 2013-10-22 | Western Gas And Electric Company | Photovoltaic array ground fault detection method for utility-scale grounded solar electric power generating systems |
EP2587654B1 (en) * | 2010-06-25 | 2023-11-29 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Power conversion apparatus |
JP5739734B2 (ja) * | 2011-06-08 | 2015-06-24 | 東芝三菱電機産業システム株式会社 | 電力変換装置 |
DE102011089606A1 (de) * | 2011-12-22 | 2013-06-27 | Ge Energy Power Conversion Gmbh | Verfahren zum Betreiben einer elektrischen Schaltung |
US9509231B2 (en) * | 2012-04-26 | 2016-11-29 | General Electric Company | Power converter system, damping system, and method of operating a power converter system |
JP5947109B2 (ja) * | 2012-05-24 | 2016-07-06 | 株式会社日立製作所 | 無停電電源装置、無停電電源装置の制御方法 |
CN106921146B (zh) * | 2017-03-20 | 2019-09-13 | 特变电工西安电气科技有限公司 | 一种多电平光伏并网逆变器的操作过电压保护装置及方法 |
JP6694006B2 (ja) * | 2018-05-31 | 2020-05-13 | ファナック株式会社 | Dcリンクコンデンサの短絡判定部を有するモータ駆動装置 |
CN108832827B (zh) * | 2018-06-06 | 2019-12-20 | 合肥工业大学 | 一种具有最小开关损耗的三电平逆变器的非连续脉宽调制方法 |
-
2019
- 2019-07-23 JP JP2021534458A patent/JP7103524B2/ja active Active
- 2019-07-23 EP EP19939003.0A patent/EP4007152A4/en active Pending
- 2019-07-23 WO PCT/JP2019/028870 patent/WO2021014573A1/ja unknown
- 2019-07-23 CN CN201980085559.XA patent/CN113228492A/zh active Pending
- 2019-07-23 US US17/416,901 patent/US20220069698A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003070263A (ja) | 2001-08-23 | 2003-03-07 | Hitachi Ltd | 3レベルインバータ装置 |
JP2008011606A (ja) | 2006-06-28 | 2008-01-17 | Hitachi Ltd | 電力変換装置及び電力変換方法 |
JP2012100401A (ja) | 2010-11-01 | 2012-05-24 | Hitachi Ltd | 電力変換装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2021014573A1 (ja) | 2021-11-18 |
US20220069698A1 (en) | 2022-03-03 |
EP4007152A4 (en) | 2023-02-08 |
CN113228492A (zh) | 2021-08-06 |
WO2021014573A1 (ja) | 2021-01-28 |
EP4007152A1 (en) | 2022-06-01 |
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