PROBLEM TO BE SOLVED: To enable prevention of deterioration of power conversion efficiency in a plurality of power supply devices, and safe and reliable shutdown of a load-side device in ascending order of priority if any of the power supply devices have an accident.SOLUTION: A multiple power supply apparatus comprises a power supply part composed of a plurality of power supply devices and a battery device connected in parallel, and a control part that is supplied power from the power supply part and controls the power supply devices and the battery device. The control part checks operation state of the power supply devices. And if any of the power supply devices has an accident, the control part calculates total power supply capacity that can be supplied by the power supply devices and total power consumption that is consumed by all load-side devices (herein information processing devices). The control part compares the calculated total power consumption and total power supply capacity, and when the total power consumption exceeds the total power supply capacity, the control part controls operation condition of the load-side devices on the basis of predetermined operation priority.
展开▼
