Electric power system and uninterruptible power supply for important load

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8860247
APP PUB NO 20120032507A1
SERIAL NO

13062076

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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To provide an electric power system capable of adequately controlling the power flow in an AC switch (120) constituting an interruptible power supply, an electric power system according to the present invention includes: an uninterruptible power supply (100) including an AC switch (120) provided between a commercial power supply (200) and an output part (102), a secondary battery (130), and an inverter (135) provided between the AC switch (120) and secondary battery (130); an important load (150) connected to the output part (102); a photovoltaic power supply (140) connected to the output part (102); an electric power detection section (181) that detects the power consumption of all loads including the important load (150); an electric power detection section (131) that detects charge/discharge power of the secondary battery (130); and a controller (110) that inputs thereto detection values from the electric power detection section (181) and electric power detection section (131) and outputs a control command value for controlling the secondary battery (130), in which the controller (110) determines the upper and lower limit values of the control command value for operating the secondary battery (130) based on the detection values from the electric power detection section (181) and electric power detection section (131).

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Patent Owner(s)

Patent OwnerAddress
SHIMIZU CORPORATION16-1 KYOBASHI 2-CHOME CHUO-KU TOKYO 1048370 ?1048370

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kinoshita, Morihiro Tokyo, JP 2 21
Numata, Shigeo Tokyo, JP 7 55
Shimoda, Eisuke Tokyo, JP 6 132
Yamane, Toshihiro Tokyo, JP 8 178

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