Multi-power system and power failure processing method

Abstract

The invention provides a multi-power system and a power failure processing method. The system comprises a load, a load controller and at least two power supplies. Each power supply is connected with a control circuit. The control circuit is used for transmitting a first control signal to the load controller if judging and learning the overcurrent of the connected power supply, so that the load controller can regulate the power consumption of the load or start the other power supply before the power supply stops working due to overcurrent protection to make the power supply with the overcurrent can work normally. By the multi-power system and the power failure processing method provided by the invention, the normally working power supply in the multi-power system in a working state can be avoided to stop working due to own overcurrent protection by timely reducing the power consumption of the load or starting the other power supply for power supply after a part of power supplies fail, thereby ensuring that machine equipment or a part of machine equipment still can work normally.

Description

technical field [0001] The invention belongs to the field of electronic technology, and relates to a multi-power supply system and a power supply failure processing method. Background technique [0002] Multi-power supply systems are widely used in large-scale machinery and equipment. Many large-scale machines now adopt modular designs, and different modular devices are used according to different application requirements. When the machine needs to work at full load, the multi-power supply system needs to provide full-load power. , when only part of the module equipment of the machine is in working condition, the multi-power supply system only needs to provide the power that can meet the work of part of the equipment modules. A multi-power supply system usually uses a load controller to control the power supply according to different load power consumption requirements or to adjust the power consumption of the load according to the power that the power supply can provide. I...

AI Technical Summary

Problems solved by technology

When the device is working at full load, that is, when the dual power supplies are working at the same time, one of the power supplies fails. And stop working, resulting in a power outage of the entire power system, so that the entire device stops working, figure 2 for figure 1 The fault handling time of the dual supply system shown, as figure 2 shown, t 1 ′ is the time for power supply A to reach over-current protection from a fault, t 2 ' is the processing time for the load controller to learn the failure of power supply A and power off the load until the load stops working, t 1 '2 ’, therefore, the existing dual power supply system cannot maintain the normal operation of some modules of the machine after a partial power failure

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