POWER CONVERSION DEVICE

A power conversion device includes a power conversion circuit and a power conversion control circuit. The power conversion control circuit is configured to calculate a positive-phase sequence current command signal based on a positive-phase sequence voltage of the three-phase AC output voltage and a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FUKASAWA, Issei, BANI SHAMSEH, Mohammad
Format:	Patent
Sprache:	eng ; fre ; ger
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 CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A power conversion device includes a power conversion circuit and a power conversion control circuit. The power conversion control circuit is configured to calculate a positive-phase sequence current command signal based on a positive-phase sequence voltage of the three-phase AC output voltage and a positive-phase sequence current of the three-phase AC output current, calculate a first axis negative-phase sequence voltage value being a d-axis component of negative-phase sequence voltage, a second axis negative-phase sequence voltage value being a q-axis component of the negative-phase sequence voltage, a first axis negative-phase sequence current value being a d-axis component of negative-phase sequence current, and a second axis negative-phase sequence current value being a q-axis component of the negative-phase sequence current, by executing dq-conversion of each of a measured value of the three-phase AC output voltage and a measured value of the three-phase AC output current, calculate a first axis negative-phase sequence current command value being a d-axis component command value of the negative-phase sequence current based on the second axis negative-phase sequence voltage value, calculate a second axis negative-phase sequence current command value being a q-axis component command value of the negative-phase sequence current based on the first axis negative-phase sequence voltage value, and calculate a negative-phase sequence current command signal based on the first axis negative-phase sequence current command value, the second axis negative-phase sequence current command value, the first axis negative-phase sequence current value, and the second axis negative-phase sequence current value, and generate the switching control signal based on the positive-phase sequence current command signal and the negative-phase sequence current command signal.