A UHV DC Generator with Small Ripple

A UHV DC generator technology, applied in the direction of irreversible AC power input conversion to DC power output, DC power input conversion to DC power output, AC power input conversion to DC power output, etc., can solve the problem of large harmonics, etc. problem, to achieve low total harmonic content, reduced ripple, and improved quality

Active Publication Date: 2022-04-15
STATE GRID ZHEJIANG ELECTRIC POWER CO MARKETING SERVICE CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for high-demand back-end equipment and experimental environments (such as 1000kV), the harmonics of this kind of high-voltage DC generator are still relatively large and need to be improved

Method used

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  • A UHV DC Generator with Small Ripple
  • A UHV DC Generator with Small Ripple
  • A UHV DC Generator with Small Ripple

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] see Figure 1 to Figure 5 , a UHV DC generator with small ripples in Embodiment 1 of the present invention, the UHV DC generator with small ripples includes:

[0046] A rectification and filtering module, the rectification and filtering module converts the input AC mains power into DC power;

[0047] A voltage stabilizing module, the voltage stabilizing module is connected to the output end of the rectifying and filtering module;

[0048] a voltage stabilizing control module, the voltage stabilizing control module controls the voltage stabilizing module;

[0049] a bridge inverter, the bridge inverter is connected to the output terminal of the voltage stabilizing module, and the bridge inverter converts the direct current output by the voltage stabilizing module into alternating current;

[0050] a phase-shifting intermediate frequency high-voltage transformer, the phase-shifting intermediate-frequency high-voltage transformer phase-shifts and outputs the alternating ...

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PUM

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Abstract

The invention belongs to the technical field of ultra-high voltage, and in particular relates to an ultra-high voltage DC generator with small ripple. Aiming at the disadvantages of existing high-voltage DC generators with large harmonics, the present invention adopts the following technical solution: a UHV DC generator with small ripples, and the UHV DC generator with small ripples includes: a rectification and filtering module voltage stabilizing module; voltage stabilizing control module; bridge inverter; phase-shifting intermediate frequency high-voltage transformer; voltage doubler rectifier module; The windings are connected to the output end of the bridge inverter, each secondary winding is connected to a multi-stage voltage doubler circuit, the voltage phase difference between adjacent secondary windings is 60°, and every two secondary windings form a pair, The two multi-stage voltage doubler circuits on the two inner secondary windings are arranged symmetrically. The beneficial effect of the UHV DC generator with small ripples of the present invention is to reduce harmonics and ripples.

Description

technical field [0001] The invention belongs to the technical field of ultra-high voltage, and in particular relates to an ultra-high voltage DC generator with small ripple. Background technique [0002] At present, HVDC generators can be divided into three types. The first type is composed of a power frequency transformer voltage regulating circuit, a bridge rectifier filter circuit (converts the input AC power to DC), a voltage stabilizing circuit, and a bridge inverter output circuit (converts the DC output of the voltage stabilizing circuit into AC power. ) and a voltage doubler rectifier high-voltage output circuit is a high-frequency, high-power output high-voltage DC generator. Because this kind of high-voltage DC generator adopts a power frequency transformer for voltage regulation, the output high-voltage DC has relatively large ripples, and the weight and volume of the equipment are relatively large. [0003] The second high-voltage DC generator is a power freque...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/04H02M7/06H02M7/10H02M1/14H02M7/00H02M3/335H02M1/12
CPCH02M7/04H02M3/33569H02M7/066H02M7/068H02M7/064H02M7/103H02M7/106H02M7/003H02M1/14H02M1/12
Inventor 张宏达雷民周峰姚力李熊许灵洁岳长喜李登云朱凯吕几凡姜杏辉鲍清华陈欢军严华江周永佳胡瑛俊陈骁郭鹏刘勇南昊孙剑桥丁徐楠孙钢章江铭张卫华刘思
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO MARKETING SERVICE CENT
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