POWER CONVERTING APPARATUS

A power converting apparatus is configured with a first inverter circuit (1) which has a high-voltage first DC voltage source (5) and is operated at a low frequency using Si IGBTs (3) having a high withstand voltage Vx exceeding 1000 V and a second inverter circuit (2) which has a low-voltage capaci...

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Bibliographic Details
Main Authors OI, TAKESHI, KOYAMA, MASATO, IWATA, AKIHIKO
Format Patent
LanguageEnglish
French
German
Published 01.12.2010
Subjects
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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Summary:A power converting apparatus is configured with a first inverter circuit (1) which has a high-voltage first DC voltage source (5) and is operated at a low frequency using Si IGBTs (3) having a high withstand voltage Vx exceeding 1000 V and a second inverter circuit (2) which has a low-voltage capacitor (8) and is operated by high-frequency PWM using SiC MOSFETs (6) having a low withstand voltage Vy, wherein an AC side of the first inverter circuit (1) is connected in series to an AC side of the second inverter circuit (2). The power converting apparatus outputs AC power having a prescribed voltage waveform obtained from the sum of voltages generated by the first and second inverters circuits (1, 2).
Bibliography:Application Number: EP20090721474