POWER SUPPLY SYSTEM OF INTERNET DATA CENTER, POWER SUPPLY SYSTEM OF COMPUTER INSTALLATION AND POWER SAVING SYSTEM OF COMPUTER INSTALLATION USING DC POWER

摘要

PURPOSE: A power supply system of an internet data center, a power supply system of a computer installation, and a power-saving system of the computer installation using DC power are provided to stably supply power to the internet data center by using DC power as a main power source and AC power as an auxiliary power source. CONSTITUTION: A power supply system (10) of an internet data center (200) includes an energy storage device (100) storing and outputting AC power and DC power and the internet data center. A DC load (210) of the internet data center includes a power supply unit (212). The energy storage device includes a battery pack (110) and a control unit (160). A connecting module (211) removes an intermediate power conversion device by converting AC power to DC power in the energy storage device to directly supply the DC power. The control unit controls to make the power supplied from a power system and a new regeneration energy part be charged in the battery pack and transmitted to the DC load of the internet data center at the same time in a normal operation. The control unit controls to make the power be directly transmitted to the DC load of the internet data center in an emergency operation. The control unit supplies DC power charged in the battery pack to the internet data center in a peak power consumption time zone and charges the power supplied to the power system and the energy storage device in the battery pack in an off-peak power consumption time zone. In the other power consumption time zone, an idle state is performed without performing charging and discharging. [Reference numerals] (20) Power system; (21) System linker; (220) IDC AC load; (30a) New regenerative energy