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Backup power supply system, control method thereof and storage medium

A power supply system and backup technology, applied in the direction of electrical components, circuit devices, emergency power supply arrangements, etc., can solve problems such as overload and inflexible UPS power supply

Active Publication Date: 2020-05-08
周雅娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The research found that this kind of backup power supply system with fixed public backup UPS has the problem of inflexible UPS power supply; and if multiple UPSs fail, only one backup UPS supplies power, which is prone to abnormal power supply such as overload

Method used

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  • Backup power supply system, control method thereof and storage medium
  • Backup power supply system, control method thereof and storage medium
  • Backup power supply system, control method thereof and storage medium

Examples

Experimental program
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Effect test

example 1

[0139] Image 6 A block diagram of a dynamic backup switching backup power supply system is provided for this example.

[0140] This example can be applied to other STS or ATS public backup fields that use N+1. Image 6 The medium IT load is powered by dual power supplies, and takes power from the outputs of any two STS devices. The STS configuration is 2N (N is the number of UPSs that meet the minimum power supply capacity requirements). It can be seen that the configuration of the STS is that the STSs are divided into two groups, with STS-10, STS-20, and STS-30 as one group, and STS-11, STS-21, and STS-31 as the other group. The power supply status of all STSs are connected to the control bus, such as Image 6 There are 2 controllers, and the number of controllers is not limited to 2. The control bus can also be redundant, for example, a first bus and a second bus, or a third bus can be set.

[0141] Figure 7 After simplification, there is only one power supply. Figu...

example 2

[0143] combine Figure 7 , through a practical case to illustrate, Figure 8 The switching states of the STS are represented by S1 and S2. At this time, STS-1 to STS-4 are in the S1 state, but not in the S2 state. Different switching states of the STS lead to different power supply circuits.

[0144] Figure 9 The connection schematic diagram of the backup power supply system when the UPS-2 power supply fails, the same as the control method of the backup power supply system provided by the embodiment of the application, can be controlled by the switch (for example, Figure 9 The STS power supply system in the Figure 10 In the STS switching control method) switch the conduction power supply circuit. Figure 11 Shown is the connection diagram after the controlled switch switches the conduction loop.

[0145] When the power supply of UPS-2 fails, the following methods can be adopted: Figure 10 The control method for the backup power supply system shown may include:

[0146...

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Abstract

The embodiment of the invention discloses a backup power supply system, a control method thereof and a storage medium. The backup power supply system may include: N+1 uninterruptible power supplies (UPSs), where N is a positive integer; at least one switch group, wherein one switch group comprises N controlled switches which can be switched between two power supply loops, the power supply loops conducted by the controlled switches are different, and the UPSs connected with the controlled switches are different; and a control module which is connected with the controlled switches and is at least used for controlling the controlled switches to switch the conducted power supply loops according to the power supply state of the conducted power supply loops.

Description

technical field [0001] The present application relates to the technical field of power supply, in particular to a backup power supply system, a control method thereof, and a storage medium. Background technique [0002] In order to reduce the power failure of the external power supply of the backup power supply system, an uninterruptible power supply (Uninterruptible Power System, UPS) is provided in the backup power supply system for power supply. However, in the process of using the uninterruptible power supply for power supply, in order to ensure the stability of power supply, multiple main UPSs and a fixed public backup UPS will be set up. [0003] The research found that this kind of backup power supply system with fixed public backup UPS has the problem of inflexible UPS power supply; and if multiple UPSs fail, only one backup UPS supplies power, which is prone to abnormal power supply such as overload. Contents of the invention [0004] In view of this, the embodim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
CPCH02J9/061
Inventor 陈炎昌徐伟轩陈炎其
Owner 周雅娟
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