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Power uninterruptible power supply (UPS) system based on super-capacitor and energy storage method thereof

A supercapacitor and supercapacitor technology, applied in systems for storing electrical energy, energy conservation and emission reduction, electrical components, etc., can solve the problems of battery life attenuation, high maintenance costs, and large environmental temperature effects, and achieve strong power and long life. , Overcome the effect of power grid "shake electricity"

Inactive Publication Date: 2013-02-13
MAISIBOER ENERGY TECH TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The energy storage system using the battery as a backup power source can solve the unexpected termination or "shocking" phenomenon of key equipment, but in practical applications, the life of the battery is seriously attenuated, and the maintenance cost is high. In addition, it is greatly affected by the ambient temperature.

Method used

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  • Power uninterruptible power supply (UPS) system based on super-capacitor and energy storage method thereof
  • Power uninterruptible power supply (UPS) system based on super-capacitor and energy storage method thereof
  • Power uninterruptible power supply (UPS) system based on super-capacitor and energy storage method thereof

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as figure 1 As shown, the supercapacitor-based power UPS system of the present invention includes: a rectifier, an inverter, a bidirectional DC / DC converter and an energy storage system. The rectifier is used to convert the AC voltage of the input power distribution into a high-voltage DC voltage and provide power for the inverter. When the system is in normal operation, the rectifier charges and floats the energy storage system through the bidirectional DC-DC converter. The inverter is a converter that converts the high-voltage DC voltage at the front end into an AC voltage that meets the requirements of the load. The DC voltage comes from the output of the rectifier during normal operation, and from the discharge process of the energy storage system during backup operation. The energy storage system keeps the UPS syste...

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Abstract

The invention discloses a power UPS system based on a super-capacitor. The power UPS system comprises a rectifier, an inverter, a bidirectional direct current (DC) / DC converter and an energy storage system. The energy storage system is composed of a super-capacitor group, a super-capacitor equalization circuit and a super-capacitor management system (CMS). The rectifier is used for converting input distribution alternating voltages into high-voltage direct voltages and provides a power supply for the inverter; the inverter is used for converting the high-voltage direct voltages at the front end into alternating voltages meeting load use requirements; and the rectifier performs charge or floating charge on the energy storage system through the bidirectional DC / DC converter. The power UPS system based on the super-capacitor uses the super-capacitor as an energy storage unit, and compensates for electrical energy gaps caused by power equipment during the power shaking of power grids through an online parallel hot spare mode. The power UPS system based on the super-capacitor can work normally at a low temperature (an ultimate temperature minus 40 DEG C), has the advantages of being small in size, free of maintain, long in service life, high in power and reliability and the like and can meet instantaneous power supply requirements of large power.

Description

technical field [0001] The invention relates to an on-line power uninterruptible power supply device, in particular to an on-line AC and DC power uninterruptible power supply system. Background technique [0002] Modern industrial production has higher and higher requirements on the quality of electricity, from continuous power supply to stable voltage and frequency power supply, from improving power factor to anti-electromagnetic interference. With the increasing power consumption of users, a large number of modern control methods are constantly being used, such as: frequency conversion speed regulator, IGBT, etc. These modern methods are very sensitive to the state of the instantaneous power grid, and do not allow the power supply voltage to drop significantly. Unexpected termination of some key equipment is fatal to a production enterprise in continuous operation, in addition to causing serious economic losses, and sometimes even causing major safety accidents. For examp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06H02J15/00
CPCY02P90/50
Inventor 邱宗清张秀婷李学涛张震
Owner MAISIBOER ENERGY TECH TIANJIN
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