Energy-saving modular high-voltage direct current (DC) power system

A high-voltage DC power supply, modular technology, applied in the direction of control/regulation system, adjustment of electrical variables, high-efficiency power electronic conversion, etc., can solve problems such as low work efficiency and low efficiency of power supply system

Active Publication Date: 2010-01-20
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If all the rectifier modules in the system have been working for a long time, it will inevitably cause the power system to work in a low-load and low-efficiency state for a long time
[0007] However, due to reasons such as user investment, planning, and ...

Method used

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  • Energy-saving modular high-voltage direct current (DC) power system
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  • Energy-saving modular high-voltage direct current (DC) power system

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Embodiment Construction

[0026] Next, the energy-saving modularized HVDC power supply system of the present invention will be further described in detail with reference to the accompanying drawings.

[0027] see figure 2 The embodiment of the energy-saving modular HVDC power supply system of the present invention includes at least two rectifier modules 101, an AC input circuit 102, an AC input bus 103, a DC output bus 104, a monitoring module 105, a signal cable 106, a DC An output circuit 107 and several battery packs 108 .

[0028] The AC input circuit 102 is externally connected to an AC grid, and the AC input circuit 102 is connected to each rectifier module 101 through an AC input bus 103 . One end of the AC input bus 103 is connected to the AC input circuit 102 , and the other end is respectively connected to the rectifier modules 101 through slot connectors. The DC output bus 104 is the output power path of each rectifier module 101 connected in parallel, one end of which is respectively con...

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Abstract

The invention discloses an energy-saving modular high-voltage direct current (DC) power system which comprises an alternating current (AC) input circuit, at least two rectifier modules, a monitoring module and a DC output circuit, wherein the AC input circuit is connected with the input end of each rectifier module; the DC output circuit is connected with the output end of each rectifier module; the monitoring module is connected with the AC input circuit, the DC output circuit and each rectifier module; the total number of the rectifier modules is W, and the number of redundancy rectifier modules is X; W is an integral number being larger than 1, and X is also an integral number; the rectifier modules are used for converting AC into DC; the DC output circuit is used for outputting the DC converted and output from the rectifier modules to a load; and the monitoring module is used for monitoring the total output current of each rectifier module and partially or entirely making W-N-X rectifier modules dormant according to a number N of the rectifier modules actually required by the total output current. The system can make redundant rectifier modules dormant so as to save energy.

Description

technical field [0001] The invention relates to the field of power supply systems, in particular to an energy-saving modular high voltage direct current (HVDC) power supply system. Background technique [0002] With the construction and development of IT networks in industries such as communications, Internet, finance, e-government, office automation, and industrial control automation, once the operation support equipment provided for these services is interrupted, it will bring huge economic losses. It is important to provide reliable power supply guarantee. At the same time, with the increase of electrical equipment, the power supply is also increasing, and high efficiency and energy saving have become an important indicator of power supply. [0003] The traditional AC UPS (Uninterruptible Power Systems, uninterruptible power supply) power supply structure has a relatively low reliability inverter link bottleneck. The traditional AC UPS power supply system outputs AC pow...

Claims

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Application Information

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IPC IPC(8): H02M7/02H02M3/00H02M1/42
CPCY02B70/126Y02B70/10
Inventor 谢凤华黎学伟张凤英
Owner ZTE CORP
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