POWER CONVERSION SYSTEM

To provide a power conversion system capable of suppressing the DC magnetization of a transformer connected thereto.SOLUTION: The power conversion system is a system to which multiple power converters are connected in parallel to supply the power to a load through a transformer. The power conversion...

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Bibliographische Detailangaben
Hauptverfasser:	KIKUCHI TERU, NARUSHIMA JUN
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 provide a power conversion system capable of suppressing the DC magnetization of a transformer connected thereto.SOLUTION: The power conversion system is a system to which multiple power converters are connected in parallel to supply the power to a load through a transformer. The power conversion system includes: a current detector for detecting the output current of the power converters; a load current calculator that calculates the current supplied by each of the power converters to the transformer from the output current detected by the current detector; and a biased magnetization suppression controller that suppresses the DC magnetization of the transformer by reducing the high-order components of the output of the load current calculator.SELECTED DRAWING: Figure 1 【課題】電力変換システムに接続された変圧器の直流偏磁を抑制する。【解決手段】複数の電力変換装置が並列に接続され、変圧器を介して負荷に電力を供給する電力変換システムであって、電力変換装置の出力電流を検出する電流検出器と、電流検出器が検出した出力電流から、それぞれの電力変換装置が変圧器に供給する電流を演算する負荷電流演算器と、負荷電流演算器の出力の高次成分を低減し、変圧器の直流偏磁を抑制する偏磁抑制制御器とを有する電力変換システム。【選択図】図１