半月刊

ISSN 1000-1026

CN 32-1180/TP

+高级检索 English
同步调相机增强电力系统惯性和改善频率响应的研究与应用
作者:
作者单位:

1.上海电力大学电气工程学院,上海市 200090;2.国家电网公司华东分部,上海市 200120

作者简介:

曹炜(1963—),女,通信作者,博士,副教授,研究生导师,主要研究方向:电力系统分析与控制。E-mail:cw-jenny@163.com
张甜(1995—),女,硕士研究生,主要研究方向:电力系统分析与控制。E-mail:1364661080@qq.com
傅业盛(1961—),男,硕士,高级工程师,主要研究方向:电力系统及其自动化。E-mail:fu_ys@ec.sgcc.com.cn

通讯作者:

基金项目:

国家电网公司华东分部项目“同步调相机在智能电网及接纳新能源的新作用及应用前景调研”。


Research and Application for Increasing Inertia and Improving Frequency Response of Power System by Using Synchronous Condenser
Author:
Affiliation:

1.College of Electrical Engineering , Shanghai University of Electric Power, Shanghai 200090, China;2.East Branch of State Grid Corporation of China, Shanghai 200120, China

Fund Project:

This work is supported by East Branch of State Grid Corporation of China.

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    随着新能源和高压直流输电等非同步电源的增多,电网同步惯量降低,进而带来电力系统频率特性的显著变化。同步调相机作为同步机具备惯性响应,可为系统提供短时频率支撑。文中首先介绍了同步调相机惯性响应原理及与同步发电机的相互作用。然后,以同步调相机的惯性响应应用为切入点,梳理了国外电网在改善电网惯性响应和频率特性方面所做的工作,包括电网同步惯性水平、提高同步惯量的措施、同步惯性对同步电网频率响应的影响等方面。最后,结合国外电网研究经验,分析了华东电网是否有必要应用同步调相机增强电力系统频率支撑,并提出了相关建议。

    Abstract:

    With the increase of non-synchronous generators such as renewable energy and high voltage direct current transmission system, the inertia of power system has been reduced, which in turn leads significant changes to frequency characteristics of power system. Synchronous condensers as one type of synchronous machines has inertial responses, which provides short-time frequency support for the system. Firstly, the principle of inertial response of synchronous condensers and its interaction with synchronous generators are introduced. Secondly, taking the application of inertial response for synchronous condenser as entry point, the worldwide work on improving the inertial responses and frequency characteristics of power system is sorted out, including the synchronous inertia level of power system, the measurements to improve the synchronous inertia, the effect of synchronous inertia on frequency response in power system and so on. Finally, combined with the worldwide research experiences, the necessity for East China Power Grid to apply synchronous condensers to enhance the frequency support of power system is analyzed, and relevant suggestions are put forward.

    表 4 Table 4
    表 5 Table 5
    表 2 国外电网针对惯量降低已采用的措施Table 2 Applied measures for foreign power grid with reduced inertia
    表 3 华东电网电源、负荷及惯性指标类SNSP变化情况Table 3 Variation of inertia index for source, load and SNSP in East China power grid
    图1 惯性对电力系统频率特性的影响Fig.1 Impact of inertia on frequency characteristics of power system
    图2 爱尔兰SNSP研究概况Fig.2 Research on SNSP in Ireland
    图3 2017年英国电网系统2 h移动平均动能Fig.3 Average kinetic energy of 2 hour moving for British power grid in 2017
    图4 大电网严重功率缺额事故中虚拟同步发电机不同控制功能作用下系统动态频率曲线比较Fig.4 Comparison of system dynamic frequency curves corresponding to different control functions of virtual synchronous generator with serious active power shortage contingency in a large power grid
    图1 惯性对电力系统频率特性的影响Fig.1 Impact of inertia on frequency characteristics for power system
    图2 爱尔兰SNSP研究概况Fig.2 Research outline on SNSP in Ireland
    图3 2017年英国电网系统2 h移动平均动能Fig.3 Average kinetic energy of 2 hour moving for British power grid in 2017
    图4 大电网严重功率缺额事故中虚拟同步发电机不同控制功能作用下系统动态频率曲线比较Fig.4 Comparison among dynamic frequency curves corresponding to different control functions of virtual synchronous generator with serious active power shortage contingency in a large power grid
    表 1 2030年欧洲低惯量电网惯性水平预测Table 1 Prediction of inertia level of low inertia grid in European in 2030
    表 6 Table 6
    表 7 Table 7
    图 电网扰动中同步调相机的电磁功率暂态变化Fig. The transient electromagnetic power of a synchronous condenser subject to a power system disturbance
    图 爱尔兰研究系统中电厂容量大于100 MW的传统发电机实际开机台数随SNSP变化趋势Fig. Number of conventional synchronous plant (>100 MW)online with respect to instantaneous SNSP
    图 美国西部互联系统(WECC)发生扰动后不同惯量下系统频率特性曲线对比Fig. The comparison of the frequency characteristics for different inertia in the system of the Western Electric Coordinating Council
    图 东北电网发生扰动后不同惯性时间常数下系统频率特性曲线对比Fig. The comparison of the frequency characteristics for different inertia time constant in the Northeast power grid
    参考文献
    相似文献
    引证文献
引用本文

曹炜,张甜,傅业盛,等.同步调相机增强电力系统惯性和改善频率响应的研究与应用[J].电力系统自动化,2020,44(3):1-10. DOI:10.7500/AEPS20190429015.
CAO Wei,ZHANG Tian,FU Yesheng,et al.Research and Application for Increasing Inertia and Improving Frequency Response of Power System by Using Synchronous Condenser[J].Automation of Electric Power Systems,2020,44(3):1-10. DOI:10.7500/AEPS20190429015.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-04-29
  • 最后修改日期:2019-09-19
  • 录用日期:
  • 在线发布日期: 2020-02-14
  • 出版日期: