Comparative Analysis on Grading Design of Two Different Structural HVDC Converter Valve

LOU Yantao; LIU Ning; WANG Jiangping

doi:10.13296/j.1001-1609.hva.2016.10.026

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Comparative Analysis on Grading Design of Two Different Structural HVDC Converter Valve

更新时间：2025-04-26

- Comparative Analysis on Grading Design of Two Different Structural HVDC Converter Valve
- High VoltageApparatus Vol. 52, Issue 10, Pages: 153-157(2016)
- 作者机构：
  
  西安西电电力系统有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.10.026
  CLC： TM721.1
- Published：2016
- 稿件说明：
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[1]娄彦涛,刘宁,王江平.两种结构形式特高压换流阀均压设计对比分析[J].高压电器,2016,52(10):153-157.

LOU Yantao, LIU Ning, WANG Jiangping. Comparative Analysis on Grading Design of Two Different Structural HVDC Converter Valve[J]. High voltageapparatus, 2016, 52(10): 153-157.
[1]娄彦涛,刘宁,王江平.两种结构形式特高压换流阀均压设计对比分析[J].高压电器,2016,52(10):153-157. DOI： 10.13296/j.1001-1609.hva.2016.10.026.

LOU Yantao, LIU Ning, WANG Jiangping. Comparative Analysis on Grading Design of Two Different Structural HVDC Converter Valve[J]. High voltageapparatus, 2016, 52(10): 153-157. DOI： 10.13296/j.1001-1609.hva.2016.10.026.

摘要

文中结合±800 kV/5 000 A溪洛渡—浙江特高压工程受端金华站极1和极2两种结构形式的换流阀

对比分析了其在直流、工频、操作冲击、雷电和陡波冲击下的均压设计

通过PSCAD建立的换流阀宽频模型及雷电冲击下的仿真结果

论证了大组件换流阀冲击均压电容在雷电和陡波冲击电压下可以实现较好的阀段之间的均压作用

同时文中还分析了小组件换流阀在雷电和陡波冲击电压下依靠晶闸管控制单元实现的换流阀自适应耐压能力

两种换流阀均压设计理念都能够较好实现换流阀的均压和保护

对今后更深入研究特高压换流阀电气设计具有重要指导意义。

Abstract

According to the two different structural HVDC converter valves operate in Jinhua converter station

which is the inverter station of ±800 kV/5 000 A Xiluodu-Zhejiang HVDC project

this paper comparatively analyzes the two different valves voltage grading design principle under DC

SIPL

LIPL and FWPL voltages. Based on PSCAD

the wide-frequency valve model is established

and the simulation results under the lightning impulse are obtained

it is demonstrated that the voltage grading effect between valve sections under LIPL and FWPL can be realized by the grading capacitor in the big-modular converter valve

at the same time

it is also analyzed that the function of the thyrisor control unit（TCU） used in the small-modular converter valve

which can realize the vale self-adapting voltage withstand capability. Both valve grading designs principle can protect the equipment

this paper must have guiding significance to a certain for the subsequent HVDC converter valve design.

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