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Uninterruptible power supply and charge-discharge control method

A charging and discharging control and power supply technology, applied in emergency power supply arrangement, battery circuit device, control/regulation system, etc., can solve the problems of short service life of UPS, limited number of charging and discharging times of lithium battery, and difficulty in meeting practical applications, and achieve extended The effect of service life

Pending Publication Date: 2021-03-30
SHANGHAI EMBEDWAY INFORMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the limitations of lithium battery technology itself, the number of charging and discharging of lithium batteries is limited, resulting in a short service life of UPS, which is difficult to meet the needs of practical applications

Method used

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] optional, see figure 1 , figure 1 It is a circuit topology diagram of an uninterruptible power supply provided by the embodiment of the present invention. The uninterruptible power supply provided by the embodiment of the present invention includes: a bidirectional step-up / down circuit, a supercapacitor bank, and a controller (not sho...

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Abstract

The invention provides an uninterruptible power supply and a charging and discharging control method, which are applied to the technical field of power electronics. The uninterruptible power supply comprises a bidirectional voltage boosting / reducing circuit, a super capacitor bank and a controller; one end of the bidirectional voltage boosting / reducing circuit is respectively connected with the power supply and a load, and the other end is connected with the super capacitor bank; and the controller is connected with the control end of the bidirectional voltage boosting / reducing circuit and isused for controlling the bidirectional voltage boosting / reducing circuit to work in a charging mode under the condition that the power supply supplies power normally so as to charge the super capacitor bank, and controlling the bidirectional voltage boosting / reducing circuit to work in a discharging mode under the condition that the power supply is powered off so as to supply power to the load bythe super capacitor bank. The super capacitor bank is used as the energy storage device, and the charging and discharging times of the super capacitor bank are far higher than those of a lithium battery, so that the defect that the lithium battery is used as the energy storage device in the prior art can be overcome, the service life of the UPS is prolonged, and the requirements of practical application are met.

Description

technical field [0001] The invention belongs to the technical field of power electronics, and in particular relates to an uninterruptible power supply and a charging and discharging control method. Background technique [0002] UPS (Uninterruptible Power Supply, uninterruptible power supply) is mainly used to provide stable and uninterrupted power supply to important equipment such as servers. When the input of the public grid is normal, the public grid supplies power to the load, and when the public grid loses power for some reason, the UPS immediately supplies the stored DC power to the load to maintain the continuous power supply of the load in a short period of time and ensure the use The reader has enough time to save important data. [0003] The energy storage device is a key component of the UPS, which determines whether the UPS can provide enough emergency power to ensure the successful preservation of important data. In practical applications, lithium batteries ha...

Claims

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Application Information

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IPC IPC(8): H02J9/06H02J7/34H02M3/158
CPCH02J9/061H02J7/345H02M3/1582
Inventor 周代彬王晓铎余乐
Owner SHANGHAI EMBEDWAY INFORMATION TECH
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