Inverter apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsTakuji Shimoura, Toshiaki Oka
Life of this patent
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Abstract
Provided is an inverter apparatus comprising a three-phase inverter section having a three-phase bridge rectifier for converting three-phase AC power into DC power and a three-phase bridge inverter for converting the DC power converted by the three-phase bridge rectifier into three-phase AC power, 3n (n is a natural number) single-phase inverters, of which n (n is a natural number) single-phase inverters are connected in series with phase outputs of the three-phase inverter section to convert the three-phase AC power into DC power, convert the converted DC power into single-phase AC power, and output the power, and a transformer for supplying insulated AC powers to the three-phase inverter and the 3n single-phase inverters, respectively.
Claims12
An inverter apparatus comprising:
- a three-phase inverter section having a three-phase bridge rectifier for converting three-phase AC power into DC power and a three-phase bridge inverter for converting the DC power into three-phase AC power;
- 3×n (n is a natural number) single-phase inverters, of which n single-phase inverters are connected in series with each phase output of said three-phase bridge inverter, said single-phase inverters configured to convert three-phase AC power into DC power, and convert the converted DC power into single-phase AC power;
- and
- a transformer for supplying insulated AC powers to said three-phase inverter section and said 3×n single-phase inverters, respectively.
An inverter apparatus comprising:
- 3×n (n is a natural number) single-phase inverters including two or more single-phase bridge rectifiers for converting two or more three-phase AC powers into DC powers and a three-phase bridge inverter for converting the DC powers into single-phase AC power, where n single-phase inverters of said 3×n single-phase inverters are connected in series with respective phase outputs of said three-phase bridge inverter, and three sets of said n single-phase inverters are star-connected;
- and
- a transformer for supplying insulated AC powers to said three-phase bridge rectifiers of said 3×n single-phase inverters.
An inverter apparatus comprising:
- a three-phase inverter section including two three-phase bridge rectifiers for converting two three-phase AC powers into DC powers and a three-phase bridge inverter for converting the DC powers into three-phase AC power;
- 3×n (n is a natural number) single-phase inverters, of which n single-phase inverters are connected in series with each phase output of said three-phase inverter section to convert two three-phase AC powers into DC powers, and convert the converted DC powers into single phase AC power;
- and
- a transformer for supplying insulated AC powers to said three-phase inverter section and said 3×n single-phase inverters.
An inverter apparatus comprising:
- a three-phase inverter section including two three-phase bridge rectifiers for converting two three-phase AC powers into DC powers and a three-phase bridge inverter for converting the DC powers into three-phase AC power;
- 3×n (n is a natural number) single-phase inverters, of which n single-phase inverters are connected in series with each phase output of said three-phase inverter section to convert three-phase AC power into DC power, and convert the converted DC power into single phase AC power;
- and
- a transformer for supplying insulated AC powers to said three-phase inverter section and said 3×n single-phase inverters.
Dependencies are inferred from the claim text.