POWER CONTROL DEVICE AND POWER CONTROL METHOD

摘要

The purpose of the invention is to make it possible to minimize fluctuations in the power supplied to a load even when there are fluctuations in the power source voltage, load fluctuations, or the like. There exist power supply conditions in which an intermediate total power value for a load (1-m) calculated by an intermediate total power value calculation unit (25) with respect to each respective load (1-m) is greater than a predetermined threshold, and the following sum is not higher than a power upper limit value (sJ): the sum of the estimated power value (qmontilde) of the load (1-m) estimated by an ON-power estimation unit (17) and the estimated power value (q1ontilde-qMontilde) of loads (1-1 to 1-M) estimated by the ON-power estimation unit (17) and determined to be switched ON in the next control cycle. If these power supply conditions are satisfied, the power supply ON/OFF apparatus (15-m) of the load (1-m) is controlled to be in an enabled state, and if the power supply conditions are not satisfied, the power supply ON/OFF apparatus (15-m) of the load (1-m) is controlled to be in a disabled state.