Redundant fault-tolerant system and fault-tolerant regulating and controlling method of UPS power supply system in IDC machine room

Abstract

The invention relates to a redundant fault-tolerant system of a UPS power supply system in an IDC machine room, which is characterized in that an on-line bypath with output voltage stabilized DC300V is connected in parallel and configured on an AC / DC converter in the UPS power supply system consisting of a power distribution isolation transformer, the AC / DC converter, a standby power battery and a power distributor 3. The AC / DC converter and the parallel on-line bypath form a redundant fault-tolerant system of a DC-UPS power supply system in the IDC machine room. The on-line bypath circuit consists of three groups of controllable silicon elements, an inductor L and a capacitor C connected in parallel to a rectified output circuit through three phase line voltages A, B and C output by a voltage stabilizer. The invention solves the problem existing in a DC-UPS power supply system at a data center and radically eliminates the going-down risk of the system due to the single-path failure points of the AC / DC converter. Meanwhile, the invention greatly lowers the configuration quantity of standby power supplies (batteries). By the implementation of the novel design idea and the implementation strategy, the reliability of the power supply system is obviously improved, and the manufacture and maintenance cost is greatly lowered.

Description

technical field [0001] The invention relates to a redundant fault-tolerant system and a fault-tolerant control method of a DC UPS power supply system in an IDC computer room, belonging to the DC UPS power supply technology category of computer rooms and Internet data centers. Background technique [0002] Using DC power supply to transform the traditional AC-powered UPS is a major change in the uninterruptible power supply system of the IDC computer room (Internet data center). The DC UPS power supply solution solves a series of inherent problems of the AC-powered UPS. Highly valued by the data center industry, telecommunications, mobile and other industries have started experiments, and many power supply equipment manufacturers are carrying out research and development and prototype production work according to user requirements. However, judging from the current situation, there are still serious problems in the design of the existing power supply scheme, which have a sign...

AI Technical Summary

Problems solved by technology

[0008] Due to the inherent defects in the design structure of the above-mentioned power supply system, when it is in the third working state and there is no bypass auxiliary circuit or device, the above-mentioned AC / DC converter is not only the technical core of the whole system, but also the The weakest link in the reliability of the entire system, the entire working system without bypass will bring three problems:

[0011] (3) resulting in several times the cost of backup power batteries

However, in the uninterruptible power supply system of the data center, due to the large power consumption of the system, it is difficult to achieve 4-8 hours of backup battery backup time

Images