JP2009089500A5 - - Google Patents

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JP2009089500A5
JP2009089500A5 JP2007254678A JP2007254678A JP2009089500A5 JP 2009089500 A5 JP2009089500 A5 JP 2009089500A5 JP 2007254678 A JP2007254678 A JP 2007254678A JP 2007254678 A JP2007254678 A JP 2007254678A JP 2009089500 A5 JP2009089500 A5 JP 2009089500A5
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power generation
switch means
generation device
power
output voltage
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JP2007254678A
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JP2009089500A (en
JP5106023B2 (en
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Claims (6)

需要家負荷に対して電力系統と連系して発電電力を供給する発電装置に接続される電力変換装置において、
前記発電装置の出力電圧を検出する発電出力電圧検出回路と、
前記発電装置の出力側にスイッチ手段を介して接続される一定の容量の発電装置保護用負荷と、
前記発電出力電圧検出回路で検出した前記出力電圧と一定電圧とを比較し、その結果に基づいて前記スイッチ手段を制御する制御手段と、
を備えてなる電力変換装置。 In a power converter connected to a power generator that supplies generated power in conjunction with a power system for a consumer load,
A power generation output voltage detection circuit for detecting an output voltage of the power generation device;
A load for protecting the power generation device of a certain capacity connected to the output side of the power generation device via a switch means;
Control means for comparing the output voltage detected by the power generation output voltage detection circuit with a constant voltage, and controlling the switch means based on the result ,
A power conversion device comprising: 前記スイッチ手段は、オンすることにより前記発電装置の出力側に前記発電装置保護用負荷を接続する第１のスイッチ手段で構成され、The switch means is constituted by first switch means for connecting the power generating device protection load to the output side of the power generating device by being turned on,
前記制御手段は、前記出力電圧と前記一定電圧とを比較し、前記出力電圧が前記一定電圧に上昇したときに前記スイッチ手段をオンし、The control means compares the output voltage with the constant voltage, and turns on the switch means when the output voltage rises to the constant voltage,
前記発電装置保護用負荷は、前記第１のスイッチ手段がオンして前記発電装置の出力側と前記発電装置保護用負荷を接続したときに前記発電装置が停止する容量に設定されている、請求項１に記載の電力変換装置。The power generation device protection load is set to a capacity at which the power generation device stops when the first switch means is turned on and the output side of the power generation device is connected to the power generation device protection load. Item 4. The power conversion device according to Item 1. 前記スイッチ手段は、半導体スイッチング素子からなる第２のスイッチ手段で構成され、
前記制御手段は、前記出力電圧が前記一定電圧に上昇しないように前記第２のスイッチ手段をオンオフ制御することを特徴とする請求項１記載の電力変換装置。 The switch means is composed of second switch means composed of semiconductor switching elements,
The power converter according to claim 1, wherein the control unit performs on / off control of the second switch unit so that the output voltage does not increase to the constant voltage . 前記スイッチ手段は、オンすることにより前記発電装置の出力側に前記発電装置保護用負荷を接続する第１のスイッチ手段と、この第１のスイッチ手段に並列的に接続され、半導体スイッチング素子からなる第２のスイッチ手段とで構成され、The switch means is connected to the first switch means in parallel with the first switch means for connecting the power generator protection load to the output side of the power generator when turned on, and is composed of a semiconductor switching element. Second switch means,
前記発電装置保護用負荷は、前記第１のスイッチ手段がオンして前記発電装置の出力側と前記発電装置保護用負荷を接続したときに前記発電装置が停止する容量に設定され、The power generation device protection load is set to a capacity at which the power generation device stops when the first switch means is turned on and the output side of the power generation device is connected to the power generation device protection load.
前記制御手段は、前記発電出力電圧検出回路で検出した前記出力電圧が前記一定電圧に上昇しないように前記第２のスイッチ手段をオンオフ制御し、前記出力電圧が前記一定電圧に上昇したときに前記第１のスイッチ手段をオンすることを特徴とする請求項１記載の電力変換装置。The control means performs on / off control of the second switch means so that the output voltage detected by the power generation output voltage detection circuit does not rise to the constant voltage, and when the output voltage rises to the constant voltage, The power converter according to claim 1, wherein the first switch means is turned on. 前記スイッチ手段は、オンすることにより前記発電装置の出力側に前記発電装置保護用負荷を接続する第１のスイッチ手段と、この第１のスイッチ手段に並列的に接続され、半導体スイッチング素子からなる第２のスイッチ手段とで構成され、The switch means is connected to the first switch means in parallel with the first switch means for connecting the power generator protection load to the output side of the power generator when turned on, and is composed of a semiconductor switching element. Second switch means,
前記発電装置保護用負荷は、前記第１のスイッチ手段がオンして前記発電装置の出力側と前記発電装置保護用負荷を接続したときに前記発電装置が停止する容量に設定され、The power generation device protection load is set to a capacity at which the power generation device stops when the first switch means is turned on and the output side of the power generation device is connected to the power generation device protection load.
前記制御手段は、前記発電出力電圧検出回路で検出した前記出力電圧が前記一定電圧よりもΔＶだけ低い電圧に上昇しないように前記第２のスイッチ手段をオンオフ制御し、前記出力電圧が前記一定電圧に上昇したときに前記第１のスイッチ手段をオンすることを特徴とする請求項１記載の電力変換装置。The control means performs on / off control of the second switch means so that the output voltage detected by the power generation output voltage detection circuit does not rise to a voltage lower than the constant voltage by ΔV, and the output voltage is the constant voltage. 2. The power conversion apparatus according to claim 1, wherein the first switch means is turned on when the power switch rises. 前記発電装置保護用負荷のインピーダンスを検出する負荷検出回路を備え、前記制御手段は、発電装置始動前に前記負荷検出回路で検出した前記発電装置保護用負荷のインピーダンスが所定の値を示していないときに、異常報知を行う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。 A load detection circuit for detecting the impedance of the power generation device protection load is provided, and the control means does not indicate a predetermined value of the impedance of the power generation device protection load detected by the load detection circuit before starting the power generation device when the power conversion device according to any one of claims 1 to 5, characterized in that the abnormality notification.
JP2007254678A 2007-09-28 2007-09-28 Power converter Expired - Fee Related JP5106023B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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JP2007254678A JP5106023B2 (en) 2007-09-28 2007-09-28 Power converter

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JP2009089500A JP2009089500A (en) 2009-04-23
JP2009089500A5 true JP2009089500A5 (en) 2010-08-26
JP5106023B2 JP5106023B2 (en) 2012-12-26

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011083161A (en) * 2009-10-09 2011-04-21 Ebara Corp Waste heat power generator system
JP5644019B2 (en) * 2010-01-21 2014-12-24 エリーパワー株式会社 Power storage system, power storage method and program
JP5644020B2 (en) * 2010-01-21 2014-12-24 エリーパワー株式会社 Power storage system, power storage method and program
JP5644018B2 (en) * 2010-01-21 2014-12-24 エリーパワー株式会社 Power storage system, power storage method and program
JP2013034295A (en) * 2011-08-01 2013-02-14 Kobe Steel Ltd Voltage stabilizer installed in power generation facility
JP2018160998A (en) * 2017-03-23 2018-10-11 株式会社神戸製鋼所 Power generating system

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JPH08242589A (en) * 1995-03-01 1996-09-17 Nippon Telegr & Teleph Corp <Ntt> Power converting equipment
JP2003134661A (en) * 2001-10-17 2003-05-09 Mitsubishi Heavy Ind Ltd Load interruption detecting device and photovoltaic power generator
JP2004357390A (en) * 2003-05-28 2004-12-16 Ebara Densan Ltd Power supply device including system interconnection inverter
JP2005269843A (en) * 2004-03-22 2005-09-29 Mitsubishi Electric Engineering Co Ltd Parallel operation device

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