Power system transformer substation communication equipment power supply with embedded direct-current power supply module structure

A DC power supply system and DC power supply technology, applied in the direction of conversion equipment without intermediate conversion to AC, electrical components, output power conversion devices, etc., can solve problems such as increasing fault points and reducing power use efficiency, and achieve good safety performance , easy maintenance, and optimize the effect of the DC conversion process

Inactive Publication Date: 2015-05-20
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a power system with an embedded DC power module structure in order to solve the problems that the existing e...

Method used

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  • Power system transformer substation communication equipment power supply with embedded direct-current power supply module structure
  • Power system transformer substation communication equipment power supply with embedded direct-current power supply module structure
  • Power system transformer substation communication equipment power supply with embedded direct-current power supply module structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Examples, refer to Figure 2 to Figure 3 In the power system power system substation communication equipment power supply with embedded DC power module structure shown, the voltage conversion circuit for converting 110V / 220V DC input voltage to 12V DC output voltage is composed of power switch S1, inductor L1, diode VD1, capacitor C1 and resistor RL1 are connected; capacitor C1 and resistor RL1 are connected in parallel, the cathode of diode VD1 is connected to one end of the parallel group of capacitor C1 and resistor RL1 through inductor L1, and the anode of 110V / 220V DC input power is connected to the cathode of diode VD1 through power switch S1 , forming the positive terminal of the 12V DC output voltage; the positive terminal of the diode VD1 is connected to the other end of the parallel connection of the capacitor C1 and the resistor RL1 and the negative terminal of the 110V / 220V DC input power supply, forming the negative terminal of the 12V DC output voltage.

...

Embodiment 2

[0036] The technical characteristics of present embodiment 2 are: as Figure 4 As shown, the voltage conversion circuit for converting 110V / 220V DC input voltage to 5V DC output voltage is formed by connecting power switch S2, inductor L2, diode VD2, capacitor C2 and resistor RL2; capacitor C2 and resistor RL2 are connected in parallel, The negative pole of diode VD2 is connected to one end of the parallel group of capacitor C2 and resistor RL2 through inductor L2, and the positive pole of 110V / 220V DC input power is connected to the negative pole of diode VD2 through power switch S2 to form the positive pole of 5V DC output voltage; the positive pole of diode VD2 is connected to The other end of the capacitor C2 and the resistor RL2 are connected in parallel to the negative terminal of the 110V / 220V DC input power supply to form the negative terminal of the 5V DC output voltage.

[0037] The input and output voltage characteristic indicators in this embodiment are as follows:...

Embodiment 3

[0043] The technical characteristics of present embodiment 2 are: as Figure 5 As shown, the voltage conversion circuit for converting 110V / 220V DC input voltage to 3V DC output voltage is formed by connecting power switch S3, inductor L3, diode VD3, capacitor C3 and resistor RL3; capacitor C3 and resistor RL3 are connected in parallel, The negative pole of diode VD3 is connected to one end of the parallel group of capacitor C3 and resistor RL3 through inductor L3, and the positive pole of 110V / 220V DC input power is connected to the negative pole of diode VD3 through power switch S3 to form the positive pole of 3V DC output voltage; the positive pole of diode VD3 is connected to The other end of the capacitor C3 and the resistor RL3 are connected in parallel to the negative terminal of the 110V / 220V DC input power supply to form the negative terminal of the 3V DC output voltage.

[0044] The input and output voltage characteristic indicators in this embodiment are as follows:...

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Abstract

The invention relates to a power system transformer substation communication equipment power supply with an embedded direct-current power supply module structure. The power system transformer substation communication equipment power supply comprises a 110V/220V direct current power supply and substation communication equipment, wherein an embedded direct-current power supply module is embedded into the substation communication equipment; a 110V direct current output end and a 220V direct current output end are arranged in a 110V/220V direct-current power supply system for a power system transformer substation; the 110V direct current output end and the 220V direct current output end are connected with the input end of the embedded direct-current power supply module; the embedded direct-current power supply module is embedded into a circuit board of the communication equipment to construct an integral circuit board structure with the circuit board of the communication equipment; an input direct-current voltage selection circuit is arranged in the embedded direct-current power supply module to select a 110V or 220V direct-current input voltage; 12V, 5V and 3V direct-current output voltages are set in the embedded direct-current power supply module to construct a voltage conversion circuit capable of converting the 110V/220V direct-current input voltage into the 12V, 5V and 3V direct-current output voltages, thereby constructing the embedded direct-current power supply module structure for the communication equipment with the 12V, 5V and 3V direct-current output voltages. The power system transformer substation communication equipment power supply is simple in application, is convenient in maintenance, and is simple in structure.

Description

technical field [0001] The invention relates to a communication equipment power supply of a power system substation with an embedded DC power supply module structure, which is suitable for directly converting the 110V / 220V DC output voltage of the power system substation integrated rectification screen into a communication equipment power supply. The utility model belongs to the technical field of power supply for communication equipment of a power system substation. Background technique [0002] The integrated power supply system takes the substation DC power supply as the core, combines the DC power supply and the DC conversion power supply for communication (DC-DC for short), shares the battery pack of the DC power supply, and is a complete set of equipment for unified monitoring. At present, the commonly used DC power input module of the communication equipment 1-1 adopts -48V, and the integrated power supply needs to undergo DC conversion by an external DC-DC converter ...

Claims

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Application Information

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IPC IPC(8): H02M3/04
CPCH02M3/04H02M1/007H02M1/009
Inventor 张斌李昭桦陈辉煌沈文光利韶聪魏畅黄盛
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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