PARALLEL OPERATION POWER SUPPLY DEVICE

To provide a parallel operation power supply device that can stabilize the current control balance at a low cost.SOLUTION: N (n is an integer greater than or equal to 2) power control devices connected in parallel include a feedback control circuit that performs feedback control of the output curren...

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Bibliographische Detailangaben
1. Verfasser:	HATTORI SHOZO
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 parallel operation power supply device that can stabilize the current control balance at a low cost.SOLUTION: N (n is an integer greater than or equal to 2) power control devices connected in parallel include a feedback control circuit that performs feedback control of the output current so that the output voltage becomes a preset reference voltage. The feedback control circuit includes a current control command value circuit that outputs a voltage corresponding to the difference between the reference voltage and the output voltage as a current control command value of the output current. A connection line is provided to connect the current control command value circuits of the n power control devices so that the current control command values are averaged in an analog manner so as to have the same value.SELECTED DRAWING: Figure 3 【課題】低コストで電流制御バランスを安定させることができる並列運転電源装置を提供する。【解決手段】並列接続したｎ個（ｎは２以上の整数）電力制御装置は、その出力電圧が予め設定した基準電圧となるように出力電流のフィードバック制御を行うフィードバック制御回路を備え、前記フィードバック制御回路は、前記基準電圧と前記出力電圧の差に対応する電圧を前記出力電流の電流制御指令値として出力する電流制御指令値回路を備えている。前記ｎ個の電力制御装置のそれぞれの電流制御指令値回路を、それらの電流制御指令値をアナログ的に平均して同一の値となるように接続する接続ラインを設けた。【選択図】図３