| 摘要 |
PURPOSE: To reduce the cost by responding to actual power demand or a plurality of electric loads, judging whether the power demand exceeds a prescribed limit of the maximum power demand in a system, and reducing the power demand by reducing, at least, a duty cycle of a load. CONSTITUTION: A plurality of electric loads 21, 25 are connected to a computer control means 10 of a food processing device and the duty cycles of the respective loads 21, 25 are controlled. Whether the actual power demand of the load exceeds a prescribed limit to the maximum power demand in a system is judged, and when it exceeds the limit, the time of a priority device is shortened. Therefore, a means which reduces the power demand by responding to a means for judging whether the load demand exceeds the prescribed limit to the maximum power demand and reducing, at least, a duty cycle of a load is provided in the device. This algorithm judges whether it exceeds the maximum demand by comparing the calculated load with the maximum system load value. |
