POWER MANAGEMENT SYSTEM, POWER MANAGEMENT DEVICE, AND LARGE POWER-USING POWER LOAD

摘要

The power management system includes: a power management device for managing power to be used by multiple power loads; and a large power-using power load. The large power-using power load is defined as a power load which shows a power consumption larger than a difference between allowable power and an upper limit power smaller than the allowable power when operating at a maximum power consumption. The power management device calculates remaining available power available for the large power-using power load, from the total power consumption of the multiple power loads and the upper limit power, and notifies the remaining available power to the large power-using power load. The large power-using power load starts to operate under a condition that its power consumption is equal to or less than the remaining available power notified by the power management device.

主权项

1. A power management system comprising:
a power management device configured to manage power to be used by multiple power loads; and a large power-using power load which is one of the multiple power loads, the large power-using power load being defined as a power load which shows a power consumption larger than a difference between allowable power regarding a total power consumption of the multiple power loads and an upper limit power regarding the total power consumption which is smaller than the allowable power when operating at a maximum power consumption, the power management device including:
a setting unit configured to set the upper limit power;an acquiring unit configured to acquire the total power consumption given by a measurement value from a measurement unit configured to measure the total power consumption;a calculating unit configured to calculate remaining available power which is available for the large power-using power load, from the upper limit power set by the setting unit and the total power consumption acquired by the acquiring unit; anda notification unit configured to notify the remaining available power calculated by the calculating unit, to the large power-using power load, and the large power-using power load including:
a power-using unit configured to perform a predetermined operation by using power; andan operation controller configured to allow the power-using unit to start to operate under a condition that a power consumption of the power-using unit is equal to or less than the remaining available power notified by the power management device.