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High voltage direct current power supply system for both alternating current purpose and direct current purpose

A high-voltage DC power supply, AC-DC dual-purpose technology, applied in the direction of emergency power supply arrangements, electrical components, circuit devices, etc., can solve problems such as network paralysis, hindering the pace of high-voltage DC power supply, and inability to provide AC power supply, so as to reduce maintenance and improve Reliability, the effect of avoiding duplication of investment

Inactive Publication Date: 2012-05-23
HUNAN FENGRI ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only greatly limits the application range of the high-voltage DC power supply system, but once the mains power fails, the AC load will not work normally, resulting in partial paralysis of the network
The shortcoming of the high-voltage DC power supply system can only provide DC power supply and cannot provide AC power supply not only brings great risks to the entire back-end power system, but also brings many practical difficulties to the transformation of the backup power supply. It also hinders the pace of high-voltage DC power supply replacing UPS power supply

Method used

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  • High voltage direct current power supply system for both alternating current purpose and direct current purpose
  • High voltage direct current power supply system for both alternating current purpose and direct current purpose
  • High voltage direct current power supply system for both alternating current purpose and direct current purpose

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Embodiment Construction

[0018] The following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.

[0019] refer to figure 1 As shown, in the present invention, after the two-way AC power supply is automatically switched into one main power supply through the AC power distribution unit 1, the AC power supply is connected to each rectification module 2, and the input and output terminals of the rectification module adopt an integrated live pluggable Type socket, each rectification module converts the input AC power into a stable high-voltage DC power supply through the internal PFC power factor correction circuit rectification and PWM type DC / DC conversion dual-stage circuit. The roads are in parallel state, one road is directly connected to the DC power distribution unit 5 , one road is connected to the input end of the inverter module 4 , and the other road is connected to the battery pack 3 . The DC power di...

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Abstract

The invention discloses a high voltage direct current power supply system for both an alternating current purpose and a direct current purpose, and aims to provide the high voltage direct current power supply system which can supply both direct current and alternating current. The system comprises an alternating current electricity distribution unit, rectifier modules, an inverter module, a monitoring module, a storage battery pack and a direct current electricity distribution unit, wherein the alternating current electricity distribution unit is connected with the rectifier modules; the rectifier modules are connected with the direct current electricity distribution unit, the inverter module and the storage battery pack respectively; the direct current electricity distribution unit is connected with direct current loads; the inverter module is connected with alternating current loads; and the monitoring module is connected with the alternating current electricity distribution unit, the rectifier modules, the inverter module, the storage battery pack and the direct current electricity distribution unit.

Description

technical field [0001] The invention relates to the field of power supply systems, in particular to an AC and DC dual-purpose high-voltage direct current power supply system. Background technique [0002] In recent years, with the IP of communication technology, IT equipment has been widely used, and the requirements for the safety and reliability of the power supply are getting higher and higher. Compared with the traditional UPS, the high-voltage DC power supply system is energy-saving, reliable, low investment, and low cost. It has great advantages in maintenance and other aspects, and it has gradually replaced the traditional UPS power supply in the communication room. [0003] In the process of replacing the traditional UPS power supply with the high-voltage DC power supply system, the high-voltage DC power supply developed and applied at present can only provide DC power supply with DC load, but cannot provide AC power supply and cannot carry AC load. In fact, most of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
Inventor 黎福根王怀忠孔庆海杨水根
Owner HUNAN FENGRI ELECTRIC GROUP
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