UPS parallel operation system, parallel operation method, storage medium and computer equipment

Abstract

The embodiment of the invention provides a UPS parallel operation system and a parallel operation method thereof. The UPS parallel operation system comprises a parallel operation bus (100) and N UPS single machines, and N is an integer greater than or equal to 2; wherein each phase of each UPS single machine is connected to the parallel operation bus (100); each UPS single machine comprises a current-sharing sampling unit (200) corresponding to each phase of the UPS single machine; and the current-sharing sampling unit (200) is used for determining the bus output voltage of the UPS single machine, the sampling output voltage of the UPS single machine and the average voltage of the UPS parallel operation system according to the output current of each phase of the UPS single machine, and determining the sampling output current of the UPS single machine and the average current of the UPS parallel operation system according to the determined sampling output voltage of the UPS single machine and the determined average voltage of the UPS parallel operation system. By implementing the technical scheme of the invention, the design cost of a circuit can be saved, and the anti-interference capability and expandability of the system are enhanced at the same time.

Description

technical field [0001] The invention relates to the field of uninterruptible power supplies, in particular to a UPS parallel system, a parallel method, storage media and computer equipment. Background technique [0002] With the development of science and technology, users have higher and higher power requirements for UPS equipment and higher reliability requirements for equipment. The application of UPS parallel machines is becoming more and more extensive. Through UPS parallel machines, UPS System load capacity and reliability. The average voltage control method is commonly used in UPS parallel technology. [0003] In the course of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0004] In order to realize the average load distribution of each UPS in the traditional UPS parallel system, it is necessary to detect the average output voltage of the parallel system through a complex analog circuit, and the...

AI Technical Summary

Problems solved by technology

[0004] The traditional UPS parallel system needs to detect the average output voltage of the parallel system through a complex analog circuit in order to realize the average load distribution of each UPS, and the design of the parallel bus used is complex. However, the analog signal has poor anti-interference ability and is affected by The transmission line has a great influence, which can easily cause the instability of signal transmission

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