JP2006238629A5 - - Google Patents

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Publication number
JP2006238629A5
JP2006238629A5 JP2005050698A JP2005050698A JP2006238629A5 JP 2006238629 A5 JP2006238629 A5 JP 2006238629A5 JP 2005050698 A JP2005050698 A JP 2005050698A JP 2005050698 A JP2005050698 A JP 2005050698A JP 2006238629 A5 JP2006238629 A5 JP 2006238629A5
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JP
Japan
Prior art keywords
power
voltage
circuit
bypass circuit
rectifying element
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JP2005050698A
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Japanese (ja)
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JP4520325B2 (en
JP2006238629A (en
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Publication date
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Priority claimed from JP2005050698A external-priority patent/JP4520325B2/en
Priority to JP2005050698A priority Critical patent/JP4520325B2/en
Priority to EP12153212.1A priority patent/EP2464000A3/en
Priority to PCT/JP2006/302997 priority patent/WO2006090672A1/en
Priority to US11/816,456 priority patent/US7719865B2/en
Priority to EP06714137A priority patent/EP1852962A4/en
Publication of JP2006238629A publication Critical patent/JP2006238629A/en
Publication of JP2006238629A5 publication Critical patent/JP2006238629A5/ja
Priority to US12/715,430 priority patent/US8559202B2/en
Publication of JP4520325B2 publication Critical patent/JP4520325B2/en
Application granted granted Critical
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (9)

直流電源の直流電力を交流電力に変換する単相インバータの交流側を複数直列接続し、上記複数の単相インバータの中から選択された所定の組み合わせによる各発生電圧の総和により出力電圧を階調制御する電力変換装置において、
上記各単相インバータの入力となる複数の上記直流電源は、電圧が最大である第１の直流電源と、その他の１あるいは複数の第２の直流電源とから成り、
第３の直流電源の電圧を昇圧し、その出力電圧を上記第１の直流電源とする昇圧回路と、該昇圧回路をバイパスさせるバイパス回路とを備え、
上記第３の直流電源の電圧が所定の電圧を超えるとき、上記昇圧回路内のスイッチのオンオフ動作を停止して昇圧動作を停止すると共に、上記バイパス回路により該昇圧回路をバイパスすることを特徴とする電力変換装置。 Connect the AC side of a single-phase inverter that converts DC power of the DC power supply to AC power in series, and gradation the output voltage by the sum of each generated voltage by a predetermined combination selected from the above-mentioned single-phase inverters In the power converter to control,
The plurality of DC power sources serving as inputs of the single-phase inverters are composed of a first DC power source having a maximum voltage and other one or a plurality of second DC power sources,
A voltage boosting circuit that boosts the voltage of a third DC power supply and uses the output voltage as the first DC power supply; and a bypass circuit that bypasses the voltage boosting circuit,
When the voltage of the third DC power source exceeds a predetermined voltage, the on / off operation of the switch in the booster circuit is stopped to stop the booster operation, and the booster circuit is bypassed by the bypass circuit. Power converter. 上記昇圧回路を、リアクトル、整流用素子、および上記スイッチで構成し、上記バイパス回路により、直列接続された上記リアクトルおよび上記整流用素子の双方あるいは該整流用素子のみをバイパスすることを特徴とする請求項１記載の電力変換装置。 The step-up circuit includes a reactor, a rectifying element, and the switch, and the bypass circuit bypasses both the reactor and the rectifying element connected in series or only the rectifying element. The power conversion device according to claim 1. 上記バイパス回路を流れる電流が所定値以下となるとき該バイパス回路を遮断し、昇圧動作を停止した上記昇圧回路を介した電流経路に切り換えることを特徴とする請求項２記載の電力変換装置。 3. The power conversion device according to claim 2, wherein when the current flowing through the bypass circuit becomes equal to or less than a predetermined value, the bypass circuit is cut off and switched to a current path through the booster circuit in which the boosting operation is stopped. 上記昇圧回路を、リアクトル、整流用素子、および上記スイッチで構成し、上記バイパス回路により上記リアクトルのみをバイパスすることを特徴とする請求項１記載の電力変換装置。 2. The power conversion apparatus according to claim 1, wherein the booster circuit is constituted by a reactor, a rectifying element, and the switch, and only the reactor is bypassed by the bypass circuit. 上記バイパス回路はリレーで構成したことを特徴とする請求項１〜４のいずれかに記載の電力変換装置。 The power converter according to claim 1, wherein the bypass circuit is configured by a relay. 上記第１の直流電源と上記各第２の直流電源とは、ＤＣ／ＤＣコンバータを介して接続されたことを特徴とする請求項１〜５のいずれかに記載の電力変換装置。 The power converter according to claim 1, wherein the first DC power source and the second DC power sources are connected via a DC / DC converter. 所定の交流電圧、交流電流を出力して負荷に供給する、あるいは該所定の交流出力を系統に並列に接続し、上記第３の電源を該系統に連系させることを特徴とした請求項１〜６のいずれかに記載の電力変換装置。 The predetermined AC voltage and AC current are output and supplied to a load, or the predetermined AC output is connected in parallel to the system, and the third power source is connected to the system. The power converter device in any one of -6. 直流電源の直流電力を交流電力に変換する単相インバータを備えた電力変換装置において、In a power conversion device including a single-phase inverter that converts DC power of a DC power source into AC power,
上記直流電源の電圧を昇圧して該出力電圧を上記単相インバータの入力とする昇圧回路と、該昇圧回路をバイパスさせるバイパス回路と、該バイパス回路と並列に半導体スイッチとを備え、A booster circuit that boosts the voltage of the DC power supply and inputs the output voltage to the single-phase inverter; a bypass circuit that bypasses the booster circuit; and a semiconductor switch in parallel with the bypass circuit;
上記直流電源の電圧が所定の電圧を超えるとき、上記昇圧回路内のスイッチのオンオフ動作を停止して昇圧動作を停止すると共に、上記バイパス回路により該昇圧回路をバイパスすることを特徴とする電力変換装置。When the voltage of the DC power source exceeds a predetermined voltage, the on / off operation of the switch in the booster circuit is stopped to stop the booster operation, and the booster circuit is bypassed by the bypass circuit apparatus. 上記昇圧回路を、リアクトル、整流用素子、および上記スイッチで構成し、上記バイパス回路により、直列接続された上記リアクトルおよび上記整流用素子の双方あるいは該整流用素子のみをバイパスすることを特徴とする請求項８記載の電力変換装置。The step-up circuit includes a reactor, a rectifying element, and the switch, and the bypass circuit bypasses both the reactor and the rectifying element connected in series or only the rectifying element. The power conversion device according to claim 8.
JP2005050698A 2005-02-25 2005-02-25 Power converter Expired - Fee Related JP4520325B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2005050698A JP4520325B2 (en) 2005-02-25 2005-02-25 Power converter
EP06714137A EP1852962A4 (en) 2005-02-25 2006-02-21 Power conversion apparatus
PCT/JP2006/302997 WO2006090672A1 (en) 2005-02-25 2006-02-21 Power converter
US11/816,456 US7719865B2 (en) 2005-02-25 2006-02-21 Power conversion apparatus
EP12153212.1A EP2464000A3 (en) 2005-02-25 2006-02-21 Power conversion apparatus
US12/715,430 US8559202B2 (en) 2005-02-25 2010-03-02 Power conversion apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005050698A JP4520325B2 (en) 2005-02-25 2005-02-25 Power converter

Publications (3)

Publication Number Publication Date
JP2006238629A JP2006238629A (en) 2006-09-07
JP2006238629A5 true JP2006238629A5 (en) 2007-02-08
JP4520325B2 JP4520325B2 (en) 2010-08-04

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Family Applications (1)

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JP2005050698A Expired - Fee Related JP4520325B2 (en) 2005-02-25 2005-02-25 Power converter

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JP (1) JP4520325B2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2327264T3 (en) * 2006-10-21 2009-10-27 Sma Solar Technology Ag ELECTRICAL CIRCUIT DEVICE AND PROCEDURE, IN PARTICULAR FOR PHOTOVOLTAIC GENERATORS.
JP4953783B2 (en) * 2006-11-30 2012-06-13 三洋電機株式会社 Converter device and grid interconnection system
JP4847551B2 (en) * 2009-03-09 2011-12-28 パナソニック株式会社 Washing and drying machine
JP5289192B2 (en) * 2009-05-28 2013-09-11 三菱電機株式会社 Power converter and failure detection method for power converter
JP2011200099A (en) 2009-08-31 2011-10-06 Sanyo Electric Co Ltd Inverter and power converter mounted with the same
JP5645425B2 (en) * 2010-02-26 2014-12-24 三菱電機株式会社 Power converter
KR20130133413A (en) * 2012-05-29 2013-12-09 엘에스산전 주식회사 An apparatus for photovoltaic power generation
US20130328404A1 (en) * 2012-06-11 2013-12-12 Panasonic Corporation Voltage conversion apparatus, power generation system, and voltage conversion method
JP5791007B2 (en) * 2012-08-07 2015-10-07 ▲華▼▲為▼▲終▼端有限公司 Power supply apparatus and method, and user apparatus
JP2015154517A (en) * 2014-02-12 2015-08-24 株式会社三社電機製作所 PV power conditioner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05137267A (en) * 1991-11-12 1993-06-01 Dia Semikon Syst Kk Power system
JP3132614B2 (en) * 1993-09-13 2001-02-05 富士電機株式会社 DC-DC converter
JPH08205423A (en) * 1995-01-27 1996-08-09 Hitachi Ltd Uninterruptible power supply
JP3980515B2 (en) * 2003-04-22 2007-09-26 三菱電機株式会社 Voltage fluctuation compensation device

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