Power supply device
A technology of power supply device and AC power supply, applied in circuit devices, battery circuit devices, DC network circuit devices, etc., can solve the problems of increased electricity bills, increased current of power receiving devices, etc.
Inactive Publication Date: 2021-03-02
KK TOSHIBA +1
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Problems solved by technology
[0004] When a large amount of power is directly supplied from a power supply system such as a commercial power supply to an electrical load that consumes a large amount of power transiently, the current flowing through the power receiving device increases, and thus the electricity bill may increase
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[0017] Hereinafter, power supply devices of various embodiments will be described with reference to the accompanying drawings. It should be understood, however, that the embodiments are merely examples and that other embodiments may take various and alternative forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one of ordinary skill in the art to variously employ the embodiments. As will be understood by those of ordinary skill in the art, the various features shown and described with reference to any one of the figures may be combined with features in one or more of the other figures to produce a representative implementation for a typical application example. However, various combinations and modifications of the features consistent with the teachings of this disclosure may be desired for particular applications or implementations.
[0018] figure 1 is an ex...
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The purpose of the present invention is to provide a power supply device capable of simultaneously using a plurality of power storage cells in cooperation with each other in accordance with conditionsduring use. According to an embodiment, the power supply device includes a control circuit, a converter, an inverter, and a first power storage unit and a second power storage unit. The second powerstorage unit has a larger power storage capacity than the first power storage unit. When the AC power supply is in a normal state, and the control circuit detects that the power consumption exceeds athreshold value, the control circuit controls the first power storage unit to discharge, and when the control circuit detects that the power consumption does not exceed the threshold value, the control circuit controls at least one of the first power storage unit and the second power storage unit to charge. When the AC power supply is in an abnormal state, the control circuit controls the second power storage unit to discharge, and when it is detected that power consumption exceeds the threshold value, the control circuit controls the first power storage unit to discharge.
Description
[0001] Cross References to Related Applications [0002] This application is based on and claims priority from Japanese Patent Application No. 2019-154066 filed on August 26, 2019, the entire contents of which are incorporated herein by reference. technical field [0003] Embodiments relate to power supply devices. Background technique [0004] When a large amount of power is directly supplied from a power supply system such as a commercial power supply to an electric load that transiently consumes a large amount of power, the current flowing through the power receiving device increases, and thus the electricity bill may increase. [0005] On the other hand, a system including an electric storage unit is known. According to such a system, when the electric load consumes a large amount of electric power, by supplying electric power from the electric storage unit to the electric load, the electric power received from the electric power supply system can be reduced to a prefer...
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IPC IPC(8): H02M5/458H02J7/34H02J3/32
CPCH02M5/4585H02J7/345H02J3/32H02M1/322H02J1/102H02J2207/50H02J7/04H02J7/0013H02P27/06H02J2207/20
Inventor 门田行生森岛洋一
Owner KK TOSHIBA