2025年4月6日 周日
首页 > 过刊浏览>2021年第36卷第2期 >162-171. DOI:10.19781/j.issn.1673-9140.2021.02.020
PDF HTML阅读 XML下载 导出引用 引用提醒
考虑频率电压空间分布特性的电网实时减载及负荷恢复策略
CSTR:
[cstr]
作者:
中图分类号:

TM732

基金项目:

国家电网有限公司科技项目(SGTYHT/17-JS-199)


Load shedding and load recovery strategy considering spatial distribution characteristics of frequency and voltage
Author:
  • 摘要
    • | |
  • 访问统计
    • |
  • 参考文献 [24]
    • | |
  • 引证文献
    • | |
  • 文章评论
    摘要:

    由于网络架构、机组参数和负荷特性等多种因素的影响,故障后电网各节点的频率电压表现出一定的空间分布特性,因此在不同节点实施稳控措施和负荷恢复策略对系统稳定性影响存在差异。同时,应考虑频率、电压、有功及无功等多种强耦合性电气量的交互作用对负荷减载或恢复过程的影响,以提高负荷调节效果。在此背景下,提出一种新的基于负荷控制灵敏度指标的低频低压减载及负荷恢复策略,该方法综合考虑频率电压的空间分布特性以及各种耦合电气量的交互特性。基于实际省级电网的时域仿真表明:在负荷减载和恢复阶段,根据负荷控制灵敏度指标的负荷调节策略均有利于电网稳定性提升。

    Abstract:

    Influenced by the power grid structure, generator parameters, and load characteristics, the post-fault frequency, and voltage at nodes reflect spatial distribution characteristics, resulting in different effects of the load shedding and load recovery strategy performed at different nodes on the system stability. Besides, the influence of the interaction between coupled electrical quantities of frequency, voltage, active power, and reactive power should be considered to improve the efficiency of the load regulation. In this paper, a novel load-control-sensitivity based low-frequency and low-voltage load shedding and load recovery strategy is proposed, which considers the spatial distribution characteristics of frequency and voltage, and the interaction of coupled electrical quantities. A time-domain simulation based on a provincial power grid shows the proposed load regulation strategy improves the power grid stability during the periods of both load shedding and load recovery.

    参考文献
    [1] 赵强,王丽敏,刘肇旭.全国电网互联系统频率特性及低频减载方案[J].电网技术,2009,33(8):35-40.ZHAO Qiang,WANG Limin,LIU Zhaoxu.Study on dynamic frequency characteristics and coordinative under frequency load shedding scheme for nationwide interconnected power grid of China[J].Power System Technology,2009,33(8):35-40.
    [2] 刘伟.电网严重故障下的电压稳定应对措施分析[J].电力系统保护与控制,2020,48(16):163-170.LIU Wei.Design of a current measuring sensor with self-power supply function[J].Power System Protection and Control,2020,48(16):163-170.
    [3] 时伯年,孙刚,瞿艳霞.柔性直流输电的孤网频率稳定协调控制[J].电力科学与技术学报,2019,34(4):137-142.SHI Bonian,SUN Gang,QU Yanxia.Research on coordinated frequency stability control after islanding based on VSC-HVDC technique[J].Journal of Electric Power Science and Technology,2019,34(4):137-142.
    [4] 吴雪莲,李兆伟,刘福锁,等.大功率扰动下计及系统频率分布特性的紧急控制策略研究[J].电力系统保护与控制,2021,49(3):104-114.WU Xuelian,LI Zhaowei,LIU Fusuo,et al.Analysis of the emergency control strategy of system frequency considering system frequency distribution characteristics under large power disturbance[J].Power System Protection and Control,2021,49(3):104-114.
    [5] 潘晓杰,樊茂森,张文朝,等.含水电系统的低频减载关键参数优化方法[J].中国电力,2020,53(2):76-82.PAN Xiaojie,FAN Maosen,ZHANG Wenchao,et al.Optimizing method for key parameters of under-frequency load shedding for power system penetrated with hydropower[J].Electric Power,2020,53(2):76-82.
    [6] 汤涌.电力系统安全稳定综合防御体系框架[J].电网技术,2012,36(8):1-5.TANG Yong.Framework of comprehensive defense architecture for power system security and stability[J].Power System Technology,2012,36(8):1-5.
    [7] 吴云亮,李晓珺,唐晓骏,等.基于减载贡献因子的低频减载动态优化方法研究[J].智慧电力,2019,47(1):105-109.WU Yunliang,LI Xiaojun,TANG Xiaojun,et al.Dynamic optimization of under-frequency load shedding strategy based on load shedding contribution factor[J].Smart Power,2019,47(1):105-109.
    [8] 侯玉强,方勇杰,杨卫东,等.综合电压频率动态交互影响的自动减负荷控制新方法[J].电力系统自动化,2010,36(5):24-28.HOU Yuqiang,FANG Yongjie,YANG Weidong,et al.A new method of automatic load shedding control based on the voltage and frequency dynamics interaction[J].Automation of Electric Power Systems,2010,36(5):24-28.
    [9] 李顺,廖清芬,刘涤尘,等.计及电压稳定的自适应协调低频减载策略[J].电力自动化设备,2017,37(12):157-163.LI Shun,LIAO Qingfen,LIU Dichen,et al.Adaptive coordinated low frequency load shedding strategy considering voltage stability[J].Electric Power Automation Equipment,2017,37(12):157-163.
    [10] 王怀远,何培灿,温步瀛.基于响应信息的分散式低频减载方案[J].电网技术,2019,43(8):2976-2982.WANG Huaiyuan,HE Peican,WEN Buying.Decentralized under-frequency load shedding scheme based on response information[J].Power System Technology,2019,43(8):2976-2982.
    [11] 王凡,李海峰,胥国毅,等.调频关键参数对电网频率特性的影响及其灵敏度分析[J].电力系统保护与控制,2020,48(20):1-8.WANG Fan,LI Haifeng,XU Guoyi,et al.Influence of key parameters of frequency control on frequency characteristics of power grid and sensitivity analysis[J].Power System Protection and Control,2020,48(20):1-8.
    [12] WANG Qi,TANG Yi,LI Feng,et al.Coordinated scheme of under-frequency load shedding with intelligent appliances in a cyber physical power system[J].Energies,2016,9(8):630.
    [13] 廖诗武,姚伟,文劲宇,等.电力系统恢复后期网架重构和负荷恢复的两阶段优化方法[J].中国电机工程学报,2016,36(18):4873-4882.LIAO Shiwu,YAO Wei,WEN Jinyu,et al.Two-stage optimization method for network and load recovery during power system restoration[J].Proceedings of the CSEE,2016,36(18):4873-4882.
    [14] 刘文轩,顾雪平,王佳裕,等.考虑系统安全因素的负荷恢复方案优化[J].电力系统自动化,2016,40(12):87-93.LIU Wenxuan,GU Xueping,WANG Jiayu,et al.Optimization of load recovery scheme considering system security factors[J].Automation of Electric Power Systems,2016,40(12):87-93.
    [15] 程艳,张健,管荑,等.HVDC换相失败时受端电网的电压与频率联合控制策略[J].高压电器,2020,56(4):241-245.CHENG Yan,ZHANG Jian,GUAN Ti,et al.Coordinated control strategy of voltage and frequencysupport at receiving end of HVDC system under commutation failure[J].High Voltage Apparatus,2020,56(4):241-245.
    [16] 陈滢,杨苹,吕宇桦,等.计及故障供电恢复策略的主动配电网电源规划[J].电测与仪表,2020,57(16):65-70.CHEN Ying,YANG Ping,LV Yuhua,et al.DG programming of active distribution network considering a strategy of power restoration from fault[J].Electrical Measurement & Instrumentation,2020,57(16):65-70.
    [17] 熊小伏,周永忠,周家启.计及负荷频率特性的低频减载方案研究[J].中国电机工程学报,2005,25(19):48-51.XIONG Xiaofu,ZHOU Yongzhong,ZHOU Jiaqi.Study of underfrequency load shedding scheme based on load frequency characteristics[J].Proceedings of the CSEE,2005,25(19):48-51.
    [18] 袁季修.防御大停电的广域保护和紧急控制[M].北京:中国电力出版社,2007:157.
    [19] 贺仁睦,韩冬,杨琳.负荷模型对电网安全性的影响研究[J].电网技术,2007,31(5):1-5.HE Renmu,HAN Dong,YANG Lin.Study on effect of load models on power system security[J].Power System Technology,2007,31(5):1-5.
    [20] 朱建全,时薇薇,易江文,等.基于交互多模型算法的电力负荷在线建模[J].中国电机工程学报,2016,36(13):3479-3487.ZHU Jianquan,SHI Weiwei,YI Jiangwen,et al.Electric load online modeling based on IMM algorithm[J].Proceedings of the CSEE,2016,36(13):3479-3487.
    [21] 薛禹胜.运动稳定性量化理论—非自治非线性多刚体系统的稳定性分析[M].南京:江苏科学技术出版社,1999:131.
    [22] 李昊,王杰.基于虚拟同步发电机技术的改进微网下垂控制[J].电力科学与技术学报,2018,33(2):11-19.LI Hao,WANG Jie.Modified droop control based on virtual synchronous generator[J].Journal of Electric Power Science and Technology,2018,33(2):11-19.
    [23] 周霞.风险量化的电网备用协调优化技术研究[D].哈尔滨:哈尔滨工业大学,2017.
    [24] 边宏宇,徐友平,党杰,等.直流受端多资源电压协调控制策略研究[J].电网与清洁能源,2020,36(4):48-54.BIAN Hongyu,XU Youping,DANG Jie,et al.Research on multi-resource voltage coordinated control strategy at DC receiving terminal[J].Power System and Clean Energy,2020,36(4):48-54.
    相似文献
    引证文献
引用本文

李晨,张昊,周济,等.考虑频率电压空间分布特性的电网实时减载及负荷恢复策略[J].电力科学与技术学报,2021,36(2):162-171.
Li Chen, Zhang Hao, Zhou Ji, et al. Load shedding and load recovery strategy considering spatial distribution characteristics of frequency and voltage[J]. Journal of Electric Power Science and Technology,2021,36(2):162-171.

复制
分享
文章指标
  • 点击次数:156
  • 下载次数: 1274
  • HTML阅读次数: 0
  • 引用次数: 0
历史
  • 在线发布日期: 2021-05-08
文章二维码

微信公众号二维码

您是本站第 84082 访问者

通信地址：长沙市（天心区）万家丽南路960号长沙理工大学

电话/传真：0731-85258195 E-mail：dlxb04@163.com

版权所有：电力科学与技术学报 ® 2025 版权所有

京公网安备 11010802026262号