JP6770656B1 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
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- JP6770656B1 JP6770656B1 JP2019566713A JP2019566713A JP6770656B1 JP 6770656 B1 JP6770656 B1 JP 6770656B1 JP 2019566713 A JP2019566713 A JP 2019566713A JP 2019566713 A JP2019566713 A JP 2019566713A JP 6770656 B1 JP6770656 B1 JP 6770656B1
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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
- 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
- H02M7/5387—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 in a bridge configuration
-
- 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
- H02M7/539—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 with automatic control of output wave form or frequency
- H02M7/5395—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 with automatic control of output wave form or frequency by pulse-width modulation
-
- 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
- H02M7/5387—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 in a bridge configuration
- H02M7/53871—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 in a bridge configuration with automatic control of output 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
- 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
- H02M1/0016—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters
- H02M1/0022—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters the disturbance parameters being input voltage fluctuations
-
- 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
- H02M1/36—Means for starting or stopping converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
Description
図1を参照して、実施の形態に係る電力変換装置100の直流側には、直流電源1が接続される。電力変換装置100の交流側には、遮断器2a,2bおよび変圧器3を介して負荷4が接続される。変圧器3は、1次巻線3a、2次巻線3bおよび環状の鉄心3cを有する。
図2を参照して、比較例に係る電力変換装置の制御装置200は、電圧制御部300と、電流制御部50と、PMW回路60とを含む。
図5を参照して、検出部70は、低域通過フィルタ(LPF)72を有する。LPF72は、出力フィルタ12から出力される所望の周波数(例えば商用周波数)の電流ILが通過することを防止し、所望の周波数よりも低い周波数の励磁電流を通過させるように構成される。すなわち、LPF72は、電流検出器16により検出された1次巻線電流Iacから、励磁電流を抽出する。
上述した実施の形態では、電流制御部50におけるフィードフォワード項の大きさを決めるゲインG3の値を、「1.0」および所定値Kの間で切り替える構成例について説明した。この構成例では、フィードフォワード項の大きさが変化する際に制御安定性が低下する可能性が懸念される。
Claims (5)
- 直流側の直流電圧を交流電圧に変換して交流側に出力するインバータと、
前記インバータを制御する制御装置とを備え、
前記インバータの前記交流側は変圧器を介して負荷に接続され、前記変圧器は、前記交流側から出力される前記交流電圧を前記負荷に与えるように構成され、
前記変圧器の1次巻線電流を検出する第1の電流検出器と、
前記インバータの出力電流を検出する第2の電流検出器と、
前記交流側から出力される交流電圧を検出する電圧検出器とをさらに備え、
前記制御装置は、
交流電圧指令値に対する前記電圧検出器による前記交流電圧の検出値の偏差を小さくするための制御演算結果に、前記第1の電流検出器による前記1次巻線電流の検出値にゲインを乗算したフィードフォワード項を加算することによって、交流電流指令値を生成する電圧制御部と、
前記交流電流指令値に対する前記第2の電流検出器による前記インバータの出力電流の検出値の偏差を小さくするための制御演算によって、インバータ制御指令値を生成する電流制御部と、
前記インバータ制御指令値と所定の搬送波とを比較して前記インバータの制御信号を生成することにより、前記インバータをPWM制御するPWM回路とを含み、
前記電圧制御部は、前記第1の電流検出器による前記1次巻線電流の検出値に励磁突入電流が検出されたときには、前記励磁突入電流が検出されないときに比べて、前記ゲインの値を小さくする、電力変換装置。 - 前記電圧制御部は、
前記第1の電流検出器による前記1次巻線電流の検出値における前記励磁突入電流の有無を検出し、
前記1次巻線電流の検出値が前記励磁突入電流を有するときには前記ゲインの値を第1の値に設定し、前記1次巻線電流の検出値が前記励磁突入電流を有しないときには前記ゲインを前記第1の値よりも小さい第2の値に設定する、請求項1に記載の電力変換装置。 - 前記第1の値は1.0であり、
前記第2の値は0より大きく1.0未満である、請求項2に記載の電力変換装置。 - 前記電圧制御部は、前記ゲインの切替時における前記フィードフォワード項の変化率を制限するためのリミッタを有する、請求項1から3のいずれか1項に記載の電力変換装置。
- 前記制御装置は、
前記電圧検出器による前記交流電圧の検出値に基づいて、前記変圧器の鉄心に発生する磁束を示す信号の直流成分を検出する偏磁検出部と、
前記直流成分をなくすように前記インバータ制御指令値を補正する補正部とをさらに含み、
前記PWM回路は、前記補正部により補正された前記インバータ制御指令値と前記所定の搬送波とを比較して前記インバータの制御信号を生成する、請求項1から4のいずれか1項に記載の電力変換装置。
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PCT/JP2019/032466 WO2021033267A1 (ja) | 2019-08-20 | 2019-08-20 | 電力変換装置 |
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JP6770656B1 true JP6770656B1 (ja) | 2020-10-14 |
JPWO2021033267A1 JPWO2021033267A1 (ja) | 2021-09-13 |
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US (1) | US11817797B2 (ja) |
JP (1) | JP6770656B1 (ja) |
KR (1) | KR102497371B1 (ja) |
CN (1) | CN113316890A (ja) |
WO (1) | WO2021033267A1 (ja) |
Family Cites Families (19)
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KR900005426B1 (ko) * | 1986-04-22 | 1990-07-30 | 미쓰비시전기 주식회사 | 인버터 제어회로 |
JPH0746917B2 (ja) * | 1987-07-28 | 1995-05-17 | 三菱電機株式会社 | 3相変換器の制御装置 |
JP2526992B2 (ja) | 1988-05-30 | 1996-08-21 | 三菱電機株式会社 | 交流出力変換器の並列運転システム |
KR20000031658A (ko) * | 1998-11-09 | 2000-06-05 | 이구택 | 변압기의 여자돌입전류 발생억제장치 및 방법 |
JP3740946B2 (ja) * | 2000-04-28 | 2006-02-01 | 松下電器産業株式会社 | 電源装置と、電動機駆動装置および空気調和機 |
JP4319868B2 (ja) | 2003-07-02 | 2009-08-26 | 東芝三菱電機産業システム株式会社 | 電力変換装置 |
JP4461877B2 (ja) * | 2004-03-31 | 2010-05-12 | 株式会社安川電機 | インバータ装置 |
US7602627B2 (en) * | 2005-04-28 | 2009-10-13 | Origin Electric Company, Limited. | Electrical power source, operational method of the same, inverter and operational method of the same |
JP5124954B2 (ja) * | 2006-02-13 | 2013-01-23 | 株式会社日立製作所 | 交流電動機システム,交流電動機システムの制御方法およびそれにかかわる電力変換装置 |
JP5280107B2 (ja) * | 2008-05-29 | 2013-09-04 | オリジン電気株式会社 | 単相電圧型交直変換装置及び単相電圧型交直変換回路の制御方法 |
JP5702195B2 (ja) * | 2011-03-11 | 2015-04-15 | 東芝機械株式会社 | インバータ発電装置 |
JP5910155B2 (ja) * | 2012-02-22 | 2016-04-27 | 株式会社明電舎 | 電力変換装置の電圧制御装置 |
US9287812B2 (en) * | 2013-06-29 | 2016-03-15 | Rockwell Automation Technologies, Inc. | Method and apparatus for stability control of open loop motor drive operation |
CN106031019B (zh) * | 2014-02-21 | 2018-07-27 | 三菱电机株式会社 | 交流旋转机的控制装置以及电动助力转向的控制装置 |
JP6021972B2 (ja) * | 2015-03-04 | 2016-11-09 | 三菱電機株式会社 | 電力変換装置 |
JP6449129B2 (ja) * | 2015-10-14 | 2019-01-09 | 株式会社日立製作所 | 電力変換装置 |
JP6620629B2 (ja) * | 2016-03-24 | 2019-12-18 | 住友電気工業株式会社 | 電力変換装置及びその制御方法 |
JP6468342B1 (ja) * | 2017-12-14 | 2019-02-13 | オムロン株式会社 | 電力変換装置 |
JP2018207785A (ja) | 2018-10-04 | 2018-12-27 | 東芝三菱電機産業システム株式会社 | 電力変換器 |
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- 2019-08-20 CN CN201980088955.8A patent/CN113316890A/zh active Pending
- 2019-08-20 US US17/420,261 patent/US11817797B2/en active Active
- 2019-08-20 JP JP2019566713A patent/JP6770656B1/ja active Active
- 2019-08-20 WO PCT/JP2019/032466 patent/WO2021033267A1/ja active Application Filing
- 2019-08-20 KR KR1020217021900A patent/KR102497371B1/ko active IP Right Grant
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WO2021033267A1 (ja) | 2021-02-25 |
US11817797B2 (en) | 2023-11-14 |
KR102497371B1 (ko) | 2023-02-07 |
KR20210101297A (ko) | 2021-08-18 |
US20220085734A1 (en) | 2022-03-17 |
JPWO2021033267A1 (ja) | 2021-09-13 |
CN113316890A (zh) | 2021-08-27 |
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