Research on Technical Requirement of DC Rectifier Station Determined by Transient Voltage Constraint

ZHOU Qinyong; ZHANG Yantao; LIU Zengxun; YUN Lei; SHI Haobo

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Research on Technical Requirement of DC Rectifier Station Determined by Transient Voltage Constraint

更新时间：2025-12-08

- Research on Technical Requirement of DC Rectifier Station Determined by Transient Voltage Constraint
- Vol. 46, Issue 6, Pages: 2057-2063(2020)
- 作者机构：
  
  1. 中国电力科学研究院有限公司
  2. 国家电网有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 June 2020，
  
  Published：2020
- 稿件说明：
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ZHOU Qinyong, ZHANG Yantao, LIU Zengxun, et al. Research on Technical Requirement of DC Rectifier Station Determined by Transient Voltage Constraint[J]. 2020, 46(6): 2057-2063.
DOI：

ZHOU Qinyong, ZHANG Yantao, LIU Zengxun, et al. Research on Technical Requirement of DC Rectifier Station Determined by Transient Voltage Constraint[J]. 2020, 46(6): 2057-2063. DOI：

摘要

为了能够为特高压直流整流站选址及无功配置提供快速量化方法

通过分析直流故障后

典型直流整流站交流母线暂态电压曲线

揭示了整流站交流母线暂态电压升高的两阶段特性

即甩负荷后的电压突升和电容压升效应下的爬升阶段。根据两阶段特性

建立了整流站交流母线暂态最高电压解析计算方法。在此基础上

建立了整流站短路比与暂态最高电压之间的解析表达式。计算结果表明

基于直流整流站交流母线暂态最高电压限值标幺值不超过1.3要求

接入500kV交流电网整流站的最小短路比不应小于3.6。根据短路比要求

可以反向推导直流最大可输送功率

方法应用于上海庙-临沂直流

表明在配套火电6 000～8 000 MW时

直流最大可输送功率为8 100～9 300 MW配套两台300 MVA调相机后

直流可以在配套6 000 MW电源下

达到额定功率10 000 MW运行。

Abstract

In order to provide a fast quantification method for the site selection and reactive power allocation of UHVDC rectifier station

the typical transient voltage curves of AC buses in rectifier stations after DC faults are analyzed

and the two-stage characteristics of voltage rise

namely

the voltage rise after load rejection and the climb stage under increment of reactive power by capacitors

are revealed. Based on the characteristics

an analytical calculation method for voltage rise of AC bus in rectifier station is established. The relationship between short circuit ratio of DC and voltage rise of rectifier station is established. The result shows that the maximum limitation of transient voltage rise of AC bus should not exceed 1.3

and the short circuit ratio of rectifier station in rectifier station should be not less than 3.6. A method for calculating the maximum transmission power of UHVDC is proposed and applied to Shanghaimiao-Linyi UHVDC

and the results show that the maximum transmission power is 8 100～9 300 MW when the supporting thermal power is 6 000～ 8 000 MW. After two 300 MVA unit synchronous condensers are equipped

the the maximum transmission power can reach 10 000 MW under 6 000 MW supporting thermal power.

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