a power system

Abstract

The invention discloses a power supply system, which includes several parallel power supply devices, parallel power supply start indication signal lines and parallel power supply state indication signal lines, each power supply device is provided with a power supply start indication signal processing unit and a power supply state indication signal processing unit , start control signal processing unit and logic OR gate element. The parallel power supply start indication signal of the parallel power supply start indication signal line is synthesized by the logic synthesis of the single power supply start indication signal of the power supply start indication signal processing unit in each power supply device; the parallel power supply state indication of the parallel power supply state indication signal line The signal is synthesized by the logic combination of a single power supply status indication signal of the power supply status indication signal processing unit in each power supply device. By implementing the invention, the synchronous start of the parallel power supply can be realized, and the requirement of closing or adding the power supply when the load changes can also be met.

Description

technical field [0001] The invention relates to the technical field of electric power systems, in particular to a power supply system. Background technique [0002] In the application of switching power supply, in order to achieve higher power output, parallel connection of multiple power supplies is a common application method. When multiple power supplies in parallel are started, the technical method of synchronous start or the redundant N+1 start-up method is mainly adopted. These two start-up methods have their own advantages and disadvantages. The synchronous start technology can realize that N sets of parallel power supplies are N times that of a single set. The output power of the power supply starts, but it cannot be turned off online or add one or several power supplies when the load changes. The startup mode of redundant N+1 is just the opposite, allowing flexible shutdown or adding one or several power supplies when the load changes Power supply, but not enough f...

AI Technical Summary

Problems solved by technology

When multiple power supplies in parallel are started, the technical method of synchronous start or the redundant N+1 start-up method is mainly adopted. These two start-up methods have their own advantages and disadvantages. The synchronous start technology can realize that N sets of parallel power supplies are N times that of a single set. The output power of the power supply starts, but it cannot be turned off online or add one or several power supplies when the load changes. The startup mode of redundant N+1 is just the opposite, allowing flexible shutdown or adding one or several power supplies when the load changes power supply, but not enough for heavy-duty startup

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