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US 2011/0299307 A1Published application
Uninterruptible power supply apparatus
AssigneeToshiba Mitsubishi-Electric Indus. Sys. Corp.
InventorsEduardo Kazuhide Sato, Masahiro Kinoshita, Yushin Yamamoto, Tatsuaki Amboh
Life of this patent
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Abstract
An uninterruptible power supply apparatus includes a cooler cooling a converter/chopper circuit and a cooler cooling a PWM inverter. The converter/chopper circuit and the cooler make up one integrated unit. Accordingly, a smaller apparatus can be achieved, compared with a conventional apparatus in which a cooler is provided for each of a converter and a chopper.
Claims6
An uninterruptible power supply apparatus, comprising:
- a converter converting first AC power to DC power;
- an inverter converting said DC power to second AC power;
- a chopper supplying DC power from said converter to a power storage device when said first AC power is supplied and supplying DC power from said power storage device to said inverter when the supply of said first AC power is stopped;
- a first cooler cooling said converter and said chopper;
- and
- a second cooler cooling said inverter,
- said converter, said chopper and said first cooler making up one unit.
4 more elements
An uninterruptible power supply apparatus, comprising:
- a converter converting first AC power to DC power;
- an inverter converting said DC power to second AC power;
- a chopper supplying DC power from said converter to a power storage device when said first AC power is supplied and supplying DC power from said power storage device to said inverter when the supply of said first AC power is stopped,
- said first AC power being three-phase AC power,
- said converter including three sub-converters corresponding to three phases of said first AC power, respectively, and
- said chopper including three sub-choppers provided correspondingly to said three sub-converters, respectively;
- a first cooler provided correspondingly to each sub-converter and cooling the corresponding sub-converter and the corresponding sub-chopper;
- and
- a second cooler cooling said inverter,
- each of said sub-converters and the sub-chopper and the first cooler corresponding to the sub-converter making up one unit.
7 more elements
An uninterruptible power supply apparatus, comprising:
- a converter converting first AC power to DC power;
- an inverter converting said DC power to second AC power;
- a chopper supplying DC power from said converter to a power storage device when said first AC power is supplied and supplying DC power from said power storage device to said inverter when the supply of said first AC power is stopped,
- said first AC power being three-phase AC power,
- said converter including three sub-converters corresponding to three phases of said first AC power, respectively,
- said chopper including three sub-choppers provided correspondingly to said three sub-converters, respectively, and
- said inverter including three sub-inverters provided correspondingly to said three sub-converters, respectively;
- and
- a cooler provided correspondingly to each sub-converter and cooling the corresponding sub-converter, the corresponding sub-chopper and the corresponding sub-inverter,
- each of said sub-converters and the sub-chopper, the sub-inverter and the cooler corresponding to the sub-converter making up one unit.
7 more elements
Dependencies are inferred from the claim text.