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Super-capacitor back-up power source system for DTU power distribution terminal

A backup power supply and power distribution terminal technology, applied in the direction of power network operating system integration, emergency power supply arrangements, battery circuit devices, etc., can solve problems that have not been fully popularized and applied, reduce system power consumption, realize dynamic control, Effect of Preventing Fault Expansion

Active Publication Date: 2018-09-21
北京合众汇能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, despite the significant advantages of supercapacitors, they have not been fully promoted and applied for a long time.

Method used

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  • Super-capacitor back-up power source system for DTU power distribution terminal
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  • Super-capacitor back-up power source system for DTU power distribution terminal

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A supercapacitor backup power system for DTU power distribution terminals. By reducing the total capacity of the supercapacitor modules required by the backup power system and optimizing the power configuration of the power management module required by the backup power system, the cost of the supercapacitor backup power system is fully reduced , Improve the reliability and stability of the backup power system of the existing DTU power distribution terminal.

Embodiment 2

[0025] Said reducing the total capacity of the supercapacitor module required by the backup power system and optimizing the power configuration of the power management module required by the backup power system refers to: on the one hand, realize the interaction between the backup power system and the DTU core unit, and the power distribution by the DTU The terminal manages the output power of the backup power system according to its own working status, and then controls the power consumption of the backup power system; on the other hand, it is necessary to improve the energy utilization rate of the supercapacitor module itself and reduce the backup power consumption through reasonable power system configuration. The power consumption of the system itself.

Embodiment 3

[0027]As a concrete manifestation of Embodiment 2, the DTU power distribution terminal supercapacitor backup power supply system includes three parts: a supercapacitor module, a charging and discharging management unit, and an electrolytic capacitor bank, wherein the charging and discharging management unit is composed of an AC / DC power supply, an operating DC The / DC power supply and the control DC / DC power supply are jointly formed. The AC AC / DC power supply has two outputs, and the two outputs are isolated from each other. When the AC is online, one of them supplies power to each module inside the DTU power distribution terminal, and the other supplies power to the supercapacitor. Module charging, at the same time, the AC AC / DC power supply has its own status signal output function, and its output status information is the input AC working status, output circuit I working status and output circuit II working status, and the output status information is provided to the core of...

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Abstract

The invention discloses a super-capacitor back-up power source system for a DTU power distribution terminal. The total capacity of a super-capacitor module required by a back-up power source system isdecreased, power configuration of a power management module required by the back-up power source system is optimized, the cost of the super-capacitor back-up power source system is fully reduced, andthe reliability and the stability of a back-up power source system for an existing DTU power distribution terminal are improved. According to the super-capacitor back-up power source system for the DTU power distribution terminal, module state information composed by charging-discharging management units can be reported in real time, running states of power modules inside the system can be continuously tracked, and great convenience is provided for maintenance and overhauling of the back-up power source system; alternating-current power supply state information and super-capacitor module state information are fused into the power modules, the DTU power distribution terminal is in communication with all the power modules in the back-up power source system only, the working state of the back-up power source system is controllable, fault identification of the back-up power source system is easy, the cost is low, the advantages of a super capacitor can be fully developed, and a simpler, more economic and powerful back-up power source guarantee is provided for the DTU power distribution terminal.

Description

technical field [0001] The invention relates to a power distribution terminal backup power supply system, in particular to a DTU power distribution terminal supercapacitor backup power supply system. Background technique [0002] The DTU power distribution terminal is the key equipment in the intelligent power distribution link. Its operating status is directly related to the power consumption experience of thousands of users, and even more related to the operation safety of the entire power distribution network. In the event of a distribution line failure or power loss, a reliable backup power supply for the DTU distribution terminal is particularly important. [0003] At present, most DTU power distribution terminals use lead-acid batteries as backup power. However, the actual working life of lead-acid batteries is not ideal, and professional and technical personnel are required to carry out regular targeted maintenance, which brings great inconvenience to the operation an...

Claims

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Application Information

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IPC IPC(8): H02J9/06H02J13/00
CPCH02J7/345H02J9/061H02J13/00Y02B70/30Y02B90/20Y04S20/12Y04S20/248
Inventor 王大志
Owner 北京合众汇能科技有限公司
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