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Power supply power distribution system and method

A technology for power distribution and DC power supply, which is applied to control/regulating systems, electrical components, regulating electrical variables, etc. It can solve the problems of high cost of AC UPS, high loss of transmission lines, large system harmonics, etc., and achieves simple structure, Low cost and low ripple effect

Inactive Publication Date: 2014-01-22
SICHUAN INJET ELECTRIC CO LTD
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Problems solved by technology

[0009] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a new power distribution system and method, which can overcome the problems of high transmission line loss, high cost of configuring AC UPS, and large system harmonics in the prior art

Method used

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  • Power supply power distribution system and method
  • Power supply power distribution system and method
  • Power supply power distribution system and method

Examples

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Embodiment 1

[0032] as attached image 3 , attached Figure 4 , attached Figure 5 As shown, the power distribution system of this embodiment includes a 24-pulse wave rectification circuit 1 and a DC / DC power supply 2 installed on the electrical equipment. The 24-pulse wave rectification circuit 1 includes two 12-pulse wave axial double-split type rectifier transformer 3 and four sets of full-wave rectifier bridges 4, the 24-pulse rectification circuit 1 is connected to the DC / DC power supply 2 through a DC transmission line, and the DC / DC power supply 2 includes an LC filter circuit, an IGBT inverter circuit, Step-down circuit and diode rectification filter circuit.

[0033] This embodiment also provides a new power distribution method on the basis of the above-mentioned power distribution system, as shown in the attached image 3 As shown, the three-phase 35kV high-voltage power from the power grid is connected to the 24-pulse rectification circuit 1, and the step-down rectification i...

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Abstract

The invention relates to the power supply field, in particular to a power supply power distribution system and method. The power supply power distribution system comprises a multi-pulse-wave rectification loop and a DC (direct current) / DC power supply installed on electric equipment, wherein the multi-pulse-wave rectification loop comprises a transformer and a full-wave rectification circuit; and the multi-pulse-wave rectification loop is connected with the DC / DC power supply via a direct-current power transmission line. According to the power supply power distribution system and method disclosed by the invention, the problems of high transmission line loss, high alternating current UPS (uninterrupted power supply) configuration cost and big system harmonic wave in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of power supplies, in particular to a power distribution system and method. Background technique [0002] In modern industrial production, for large-scale production, it is often necessary to run dozens or hundreds of devices of the same or similar type in the same workshop, and each of these devices requires a high-power heating power supply or a power supply for other purposes (hereinafter referred to as power supply). The power output is usually DC, AC with a certain frequency or variable frequency output. Due to the high power of the entire equipment power supply system, higher requirements are placed on the reliability, power factor, harmonics and efficiency of each power supply. Only in this way can the long-term stable and reliable operation of the equipment be guaranteed, and the requirements of the State Grid on harmonics and power factor can be met. [0003] In the power supply system of existing industrial...

Claims

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Application Information

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IPC IPC(8): H02M7/04H02M3/335H02M1/14
Inventor 王军邓永华
Owner SICHUAN INJET ELECTRIC CO LTD
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