POWER CONVERSION DEVICE, POWER SUPPLY DEVICE, AND, DC COMPONENT SUPPRESSION METHOD FOR POWER CONVERSION DEVICE

To more effectively suppress a DC component in a power conversion device.SOLUTION: The present invention relates to a power conversion device provided between a DC power source and an AC path. The power conversion device includes an inverter as an object to be controlled, and a control section which...

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Bibliographische Detailangaben
Hauptverfasser:	OKUMURA TOSHIAKI, AKITA TETSUO, ONO YOSHIMI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	To more effectively suppress a DC component in a power conversion device.SOLUTION: The present invention relates to a power conversion device provided between a DC power source and an AC path. The power conversion device includes an inverter as an object to be controlled, and a control section which controls the inverter. The control section comprises: a DC component extraction section for extracting a DC component by averaging output of the inverter with a period that is a natural number multiple of an AC cycle; and a correction section for reflecting a reference wave which should be compared with a triangular wave for performing a switching operation of the inverter through pulse width modulation control, with a correction value suppressing the DC component.SELECTED DRAWING: Figure 4 【課題】電力変換装置において、より効果的に、直流成分を抑制する。【解決手段】直流電源と交流電路との間に設けられる電力変換装置であって、制御対象としてのインバータと、前記インバータを制御する制御部と、を含み、前記制御部は、前記インバータの出力を交流周期の自然数倍の期間で平均して直流成分を抽出する直流成分抽出部と、前記インバータをパルス幅変調制御によりスイッチング動作させるために三角波と比較されるべき参照波に、前記直流成分を抑制する補正値を反映させる補正部と、を有する。【選択図】図４