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UPS system

A bridge arm and flywheel energy storage technology, which is applied in the field of UPS systems, can solve problems such as internal voltage imbalance, high zero-sequence impedance, and instantaneous large loads, so as to reduce voltage imbalance, improve lightning protection performance, and work The effect of improving efficiency

Inactive Publication Date: 2020-02-21
DUNSHI MAGNETIC ENERGY TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Today's UPS systems use batteries as energy storage units. Because batteries are energy-based energy storage units, they are not suitable for frequent high-power charging and discharging, and cannot better meet the instantaneous impact of large loads, which seriously restricts the scope of use of UPS. , and due to the need for regular replacement of the battery, the maintenance cost of the entire system will be greatly increased
More importantly, the existing UPS system has large power loss, unbalanced internal voltage, high zero-sequence impedance, and poor lightning surge protection performance, which seriously affects the working efficiency of the entire UPS system.

Method used

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0023] In describing the embodiments of the present invention, it should be noted that practice may be performed in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In addition, the invention may be used in environments or configurations including numerous general purpose or special purpose computing devices. For example: personal computer, server computer, handheld or p...

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Abstract

The invention discloses a UPS system. The UPS system comprises a rectification unit, an energy storage unit and an inversion unit which are connected in sequence, wherein the rectification unit is used for carrying out voltage stabilization and filtering on the commercial power so as to generate a corresponding direct current signal and send the direct current signal to the energy storage unit; the energy storage unit comprises a flywheel energy storage device; the flywheel energy storage device is used for receiving and storing the direct current signal; the inversion unit is used for converting the received direct current signal into a corresponding alternating current signal, and the inversion unit comprises an inverter bridge and a Z-shaped isolation transformer; the Z-shaped isolationtransformer is used for adjusting excitation of the flywheel energy storage device. The UPS system provided by the embodiment of the invention is relatively good in energy storage effect, can controlcharging and discharging, has a DVR function, and improves the working efficiency of the whole UPS system.

Description

technical field [0001] The invention relates to the technical field of electric power storage, in particular to a UPS system. Background technique [0002] Today's UPS systems use batteries as energy storage units. Because batteries are energy-based energy storage units, they are not suitable for frequent high-power charging and discharging, and cannot better meet the instantaneous impact of large loads, which seriously restricts the scope of use of UPS. , and due to the need for regular replacement of the battery, the maintenance cost of the entire system will be greatly increased. More importantly, the existing UPS system has large power loss, unbalanced internal voltage, high zero-sequence impedance, and poor lightning surge protection performance, which seriously affects the working efficiency of the entire UPS system. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a UPS system with good lightning pr...

Claims

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Application Information

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IPC IPC(8): H02J9/08H02K7/02H02K9/197
CPCH02J9/08H02K7/025H02K9/197Y02E60/16
Inventor 任静陈晓国孟晓波宗银路崔双双
Owner DUNSHI MAGNETIC ENERGY TECH