基于储存能量特征的直流孤岛电压稳定控制方法

史宇欣; 王亮; 李瑞; 马静; 赵玉枫; 柏仲尧; 王泊棕

doi:10.19725/j.cnki.1007-2322.2024.0188

欢迎来到能源电力期刊网！

English Version 期刊登录

您当前的位置：

首页 >

文章列表页 >

基于储存能量特征的直流孤岛电压稳定控制方法

储能 | 更新时间：2026-10-19

- 基于储存能量特征的直流孤岛电压稳定控制方法
- A Direct-current Island Voltage Stability Control Method Based on Stored Energy Characteristics
- 现代电力 2026年43卷第5期页码：993-1002
- 作者机构：
  
  1. 国网山西省电力公司电力科学研究院,山西省,太原市,030021
  2. 新能源电力系统国家重点实验室(华北电力大学), 北京市昌平区,102206
- 作者简介：
  
  史宇欣(1990)，女，硕士，高级工程师，研究方向为电力系统继电保护与控制技术、电网故障诊断技术，E-mail：shi_yuxin90@163.com
  王亮(1989)，男，硕士，高级工程师，研究方向为电力系统过电压技术、继电保护运行与控制技术，E-mail：wljgwy@163.com
  李瑞(1981)，男，博士，正高级工程师，研究方向为电力系统继电保护与控制技术、电网安全稳定控制技术，E-mail：rlicnc@126.com
  马静(1981)，男，通信作者，教授，博士生导师，研究方向为电力系统分析、稳定与控制等，E-mail：hdmajing@163.com
  赵玉枫(1994)，男，博士，讲师，研究方向为电力系统继电保护与控制技术，E-mail：hdzyf@ncepu.edu.cn
  柏仲尧(2000)，男，硕士研究生，研究方向为电力系统分析、稳定与控制，E-mail：ncepubzy@163.com
  王泊棕(1999)，男，硕士研究生，研究方向为电力系统分析、稳定与控制，E-mail：2431203193@qq.com
- 基金信息：
  
  国网山西省电力公司科技项目“多源接入直流孤岛外送系统协同稳定控制技术研究”(520530230007)。
- DOI：10.19725/j.cnki.1007-2322.2024.0188
  中图分类号： 5
- 纸质出版：2026
- 稿件说明：
移动端阅览
史宇欣, 王亮, 李瑞, 等. 基于储存能量特征的直流孤岛电压稳定控制方法[J]. 现代电力, 2026,43(5):993-1002.

SHI Yuxin, WANG Liang, LI Rui, et al. A Direct-current Island Voltage Stability Control Method Based on Stored Energy Characteristics[J]. 2026, 43(5): 993-1002.
史宇欣, 王亮, 李瑞, 等. 基于储存能量特征的直流孤岛电压稳定控制方法[J]. 现代电力, 2026,43(5):993-1002. DOI： 10.19725/j.cnki.1007-2322.2024.0188.

SHI Yuxin, WANG Liang, LI Rui, et al. A Direct-current Island Voltage Stability Control Method Based on Stored Energy Characteristics[J]. 2026, 43(5): 993-1002. DOI： 10.19725/j.cnki.1007-2322.2024.0188.

摘要

针对高压直流弱送端系统进入孤岛运行状态后电压失稳的问题，提出了一种基于储存能量特征的直流孤岛电压稳定控制方法。首先，建立了直流送端系统无功分布模型，解析了直流系统进入孤岛后的电压跌落与无功缺额的关系，推导了直流孤岛并/离网前后换流母线电压变化的表达式。然后，构造了考虑控制环节响应的直流孤岛系统动态能量函数，建立了整流器电流指令值与储存能量的关联关系。在此基础上，提出了计及系统能量稳定性约束的电流指令值调整方法，减少了直流恢复过程中的无功消耗，实现了电压波动的快速平抑。最后，在RT-LAB平台搭建了直流孤岛外送系统模型对所提方法进行验证。实验结果表明，该方法减小了直流外送系统切除大容量电网后的电压波动，并且可以在孤岛运行后实现电压稳定性的快速恢复。

Abstract

Aiming at the issue of voltage instability in high voltage DC weak sending-end systems upon entering the island mode

a voltage stability control method is proposed based on stored energy characteristics. Firstly

a reactive power distribution model of the DC feeder system is established. The relationship between voltage sag and reactive power deficiency after a DC system enters the island mode is analyzed

and the expression for the voltage variation of the converter bus before and after DC island synchronization and desynchronization processes is derived. Subsequently

the dynamic energy function of the DC island system considering the response of the control link is constructed

and the relation between the rectifier current command value and the stored energy is established. On this basis

a current command value adjustment method is put forward

which takes into account the energy stability constraints of the system. The proposed method is capable of reducing the reactive power consumption in the process of DC recovery and achieving the rapid stabilization of voltage fluctuations. Finally

a DC island transmission system model is built on the RT-LAB platform to verify the proposed method. The experimental results demonstrate that the proposed method mitigates the voltage fluctuations after the disconnection of the DC outgoing system to the large capacity grid

and enables rapid recovery of voltage stability after isolated island operation.

关键词

Keywords

references

LIU Ye, SHEN Chen. Review and exploration of energy function construction methods for AC-DC hybrid systems[J]. Proceedings of the CSEE, 2022, 42(08): 2842−2854(in Chinese) .

WU Xiao, CUI Yong, HUANG Zhilong, et al . Research on HVDC transmission control function based on RTDS[J ] . Journal of North China Electric Power University (Natural Science Edition), 2014, 41(06): 60−66(in Chinese).

YU Xiaopeng, LU Ming, ZHANG Zhenan, et al . Analysis of influence of UHV DC on background harmonics of AC System[J ] . Modern Electric Power, 2014, 31(04): 39−43(in Chinese).

XIAO Xiangning, LI Wei, LUO Chao, et al . Research review on UHV DC isolated island operating characteristics and stability control[J ] . Transactions of China Electrotechnical Society, 2017, 32(10): 1−11(in Chinese).

CHEN Yiping, CHENG Zhe, ZHANG Kun, et al . Frequency modulation strategy for isolated HVDC transmission systems[J ] . Proceedings of the CSEE, 2013, 33(04): 96−102+13(i n Chinese).

WANG Liang, GAI Zhenyu, JIANG Weiyong, et al . Blocking strategy for isolated island operation of ±800kV Yanhuai UHV DC System[J ] . China Electric Power Construction, 2020, 41(08): 40−47(in Chinese).

TU Jingzhe, ZHANG Jian, ZENG Bing, et al . Transient reactive power characteristics and influence of control parameters in DC commutation failure and recovery process[J ] . High Voltage Technology, 2017, 43(07): 2131−2139(in Chinese).

YE Youming, ZHU Qingdai, TENG Yufei, et al . DC near-area AC overvoltage optimal control strategy based on UHV DC reactive power modulation[J ] . Modern Electric Power, 2018, 35(06): 25−32(in Chinese).

白帅涛. 弱交流电网下特高压直流低压限流控制功能的优化[D]. 北京: 华北电力大学, 2021.

WANG B. Analysis of the impact of HVDC feed-in on the transient voltage stability: an actually provincial power grid case[C]//2023 7th International Conference on Power and Energy Engineering (ICPEE). Chengdu, China: IEEE, 2023.

ZHU Yihua, RAO Hong, GUO Qi, et al . Optimization of LCC-HVDC control strategy for improving transient voltage stability char acteristics of local power grids [J ] . High Voltage Technology, 2024, 50(7): 2809-2819(in Chinese).

YUAN Bo, WANG Ying, SHAO Hua, et al . Optimal control strategy for suppressing continuous commutation failure in UHV DC layered access[J ] . Journal of North China Electric Power University (Natural Science Edition), 2020, 47(02): 47−55(in Chinese).

王华伟. 火电直流孤岛系统频率控制策略研究[D]. 北京: 华北电力大学, 2017.

HONG Yang, HUI Sisi, SONG Ying. Risk assessment of high voltage off-grid for wind power DC export system[J]. High Voltage Electrical Apparatus, 2022, 58(09): 102−111(in Chinese).

WANG Xichun, LIU Chun, LIN Weifang, et al . Influence of fan fault crossing characteristics on transient overvoltage of large-scale wind power DC transmission system and parameter optimization[J ] . Power System Technology, 2021, 45(12): 4612−4621(in Chinese).

HE Guoqing, WANG Weisheng, LIU Chun, et al . Phase commutation failure of UHV DC transmission system of wind power base (1) : Transient reactive voltage modeling of wind turbine at the transmission end [J ] . Proceedings of the CSEE, 2022, 42(12): 4391−4405(in Chinese).

LI Guanghui, WANG Weisheng, HE Guoqing, et al . Phase commutation failure of UHV DC transmission system of wind power base (Part 3): transient overvoltage suppression measures for wind turbines at the transmission end[J ] . Proceedings of the CSEE, 2022, 42(14): 5079−5089(in Chinese).

SUO Zhiwen, LI Hui, JIANG Weiyong, et al . Control optimization of HVDC transmission system considering discrete voltage regulator operation frequency [J ] . Automation of Electric Power Systems, 2019, 44(03): 211−219(in Chinese).

CHEN Yiping, CHEN Lei, YE Jun, et al . The role of generator high voltage side voltage control in suppressing cloud-wide DC island overvoltage[J ] . Automation of Electric Power Systems, 2014, 38(20): 121−126(in Chinese).

代明. 大规模风电直流孤岛运行特性及控制策略研究[D]. 北京: 华北电力大学, 2013.

张辉. 大功率直流输电系统背景下孤岛态送电侧控制策略研究及动态过程分析[D]. 武汉: 武汉大学, 2017.

李怀科. 大型风场经直流输电外送的控制策略研究[D]. 北京: 华北电力大学, 2017.

GU Xueping, BAI Yansong, LI Shaoyan, et al . Recovery decision optimization method for receiving end syste m of AC-DC hybrid network considering wind power uncertainty [J ] . Proceedings of the CSEE, 2024, 44(22): 8730-8744(in Chinese).

MA J, WANG L, CHENG P. An active damping control strategy for grid-tied type-4 wind turbine generator based on energy feedback[J]. IEEE Transactions on Power Electronics, 2022, 37(5): 5003−5020.

浏览量

258

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

受调峰和安全稳定约束的华东电网新能源承载规模研究

基于柔性直流技术的风电场并网系统电压稳定研究

计及电压稳定裕度的配电网光伏发电选址与定容

区域分布式温控负荷混杂系统的异质聚合和稳定控制

考虑统计特性和时序特性的日前风电出力序列场景生成方法