Design of Precise Variable Slope VDCOL for Changing the Method of Obtaining Compensation Voltage

WANG Lishu; LIU Bo; QIAO Shuaixiang; WEN Jingchen; WANG Jinfeng; CUI Yuyan

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Design of Precise Variable Slope VDCOL for Changing the Method of Obtaining Compensation Voltage

更新时间：2025-12-08

- Design of Precise Variable Slope VDCOL for Changing the Method of Obtaining Compensation Voltage
- Vol. 46, Issue 8, Pages: 2740-2750(2020)
- 作者机构：
  
  东北农业大学电气与信息学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 August 2020，
  
  Published：2020
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WANG Lishu, LIU Bo, QIAO Shuaixiang, et al. Design of Precise Variable Slope VDCOL for Changing the Method of Obtaining Compensation Voltage[J]. 2020, 46(8): 2740-2750.
DOI：

WANG Lishu, LIU Bo, QIAO Shuaixiang, et al. Design of Precise Variable Slope VDCOL for Changing the Method of Obtaining Compensation Voltage[J]. 2020, 46(8): 2740-2750. DOI：

摘要

通过对超高压直流输电模型研究

发现低压限流控制器（voltage dependent current order limiter

VDCOL）的静态恢复关系和获取补偿电压的方法对连续换相失败有较大的影响

改变VDCOL所采用数学模型的斜率和获取补偿电压方法有利于减少连续换相失败次数。为降低直流输电系统发生连续换相失败的可能性

提出了基于虚拟电阻电流限制控制方法的精确变斜率低压限流控制器的设计方案。使用PSCAD中的CIGRE标准测试模型进行相关仿真

最后通过对相关数据的分析

验证了所提出的控制方法在单相和三相接地故障中对抑制连续换相失败的有效性。

Abstract

Through the research of the EHV DC transmission model

it is found that the static recovery relationship of the voltage dependent current order limiter（VDCOL） and the method of obtaining compensation voltage have a great influence on the continuous commutation failure. At the same time

changing the slope of the function used by VDCOL and the method of obtaining compensation voltage is beneficial to reducing the continuity number of commutation failures. In order to reduce the possibility of continuous commutation failure. In this paper

a design scheme of precise variable slope voltage dependent current order limiter based on virtual resistance current-limited control method is proposed. The CIGRE standard test model in PSCAD is used to carry out the relevant simulation. Finally

the validity of the design control method proposed in the single-phase and three-phase ground faults to suppress continuous commutation failure is verified by analyzing the relevant data.

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