半月刊

ISSN 1000-1026

CN 32-1180/TP

+高级检索 English
直流馈入受端电网暂态电压与频率稳定紧急协调控制策略
作者:
作者单位:

1.河海大学可再生能源发电技术教育部工程研究中心,江苏省南京市 210098;2.国网安徽省电力有限公司,安徽省合肥市 230061

摘要:

为应对多直流馈入受端电网直流闭锁故障导致的暂态电压和暂态频率稳定问题,提出一种综合考虑直流功率紧急提升、调相机紧急控制和切负荷的紧急协调控制策略。首先,采用了基于多二元表的暂态稳定裕度指标,分析了直流功率紧急提升和调相机紧急控制对受端电网暂态电压稳定的影响,提出了受端电网多控制手段紧急协调控制方案。其次,基于该控制方案,计及暂态电压和暂态频率稳定约束,以控制代价最小为目标,建立了多控制手段下受端电网紧急协调控制优化模型。然后,采用灵敏度法将模型线性化,考虑了直流功率紧急提升对暂态电压稳定的负面影响,并采用逐次线性规划方法求解。最后,通过华东电网实际案例结果验证了所提控制策略的有效性。

关键词:

基金项目:

国家电网公司科技项目(受端电网频率和电压动态稳定全过程辅助决策技术研究,XT71-17-008)。

通信作者:

作者简介:

赵晋泉(1972—),男,通信作者,博士,教授,博士生导师,主要研究方向:电力系统优化运行、电压稳定与控制和电力市场等。E-mail:jqzhao2@tom.com
汤建军(1995—),男,硕士研究生,主要研究方向:电力系统电压稳定分析。E-mail:jjun_tang@163.com
吴 迪(1972—),男,硕士,高级工程师,主要研究方向:电力运行管理。E-mail:wud2734@ah.sgcc.com.cn


Emergency Coordination Control Strategy for Transient Voltage and Transient Frequency Stability in HVDC Infeed Receiving-end Power Grid
Author:
Affiliation:

1.Research Center for Renewable Energy Generation Engineering, Ministry of Education, Hohai University, Nanjing 210098, China;2.State Grid Anhui Electric Power Co., Ltd., Hefei 230061, China

Abstract:

In order to deal with the transient voltage and transient frequency stability problems of the multi-infeed high-voltage direct current (HVDC) receiving-end power grid when HVDC lines are blocked, an emergency coordination control strategy considering HVDC power emergency lifting, synchronous condenser emergency control and load shedding is proposed. Firstly, the transient voltage and frequency stability margin index based on multiple two-element notations is adopted. The impact of HVDC power emergency lifting and synchronous condenser emergency control on the transient voltage stability of the receiving-end power grid is analyzed, and an emergency coordination control scheme with multiple control means is proposed. Secondly, based on the proposed scheme, an optimization model is established for the emergency coordination control of the receiving-end power grid with multiple control means, which considers both transient voltage and transient frequency stability constraints and aims at minimizing the control cost. Then, the sensitivity is used to linearize the model, where the negative impact of HVDC power emergency lifting on the transient voltage stability is considered. Moreover, the model is solved by the successive linear programming method. Finally, the results of a real example in East China power grid show that the proposed control strategy is effective.

Keywords:

Foundation:
This work is supported by State Grid Corporation of China (Research on the Whole Process Decision Support Technology for Frequency and Voltage Dynamic Stability of Receiving-end Power Grid, No. XT71-17-008).
引用本文
[1]赵晋泉,汤建军,吴迪,等.直流馈入受端电网暂态电压与频率稳定紧急协调控制策略[J].电力系统自动化,2020,44(22):45-53. DOI:10.7500/AEPS20191019002.
ZHAO Jinquan, TANG Jianjun, WU Di, et al. Emergency Coordination Control Strategy for Transient Voltage and Transient Frequency Stability in HVDC Infeed Receiving-end Power Grid[J]. Automation of Electric Power Systems, 2020, 44(22):45-53. DOI:10.7500/AEPS20191019002.
复制
分享
历史
  • 收稿日期:2019-10-19
  • 最后修改日期:2020-01-08
  • 录用日期:
  • 在线发布日期: 2020-11-18
  • 出版日期:
相关附件