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1.中国电力科学研究院有限公司(南京),江苏省南京市 210003
2.国家电网有限公司国家电力调度控制中心,北京市 100031
3.国网江苏省电力有限公司,江苏省南京市 210024
4.南京市嘉隆电气科技股份有限公司,江苏省南京市 211100
樊陈(1982—),男,通信作者,高级工程师,主要研究方向:电力系统保护、控制和自动化,IEC 61850标准应用,智能变电站。E-mail:fanchen@epri.sgcc.com.cn
姚建国(1962—),男,教授级高级工程师,主要研究方向:电力系统自动化。
常乃超(1977—),男,高级工程师,主要研究方向:电力系统自动化、智能电网。
收稿日期:2020-07-28,
修回日期:2021-01-04,
网络出版日期:2021-04-09,
纸质出版日期:2021-06-10
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樊陈,姚建国,常乃超等.电网宽频振荡实时监测技术方案[J].电力系统自动化,2021,45(11):152-159.
FAN Chen,YAO Jianguo,CHANG Naichao,et al.Technical Scheme for Real-time Monitoring of Wide-frequency Oscillation in Power Grid[J].Automation of Electric Power Systems,2021,45(11):152-159.
樊陈,姚建国,常乃超等.电网宽频振荡实时监测技术方案[J].电力系统自动化,2021,45(11):152-159. DOI: 10.7500/AEPS20200728005.
FAN Chen,YAO Jianguo,CHANG Naichao,et al.Technical Scheme for Real-time Monitoring of Wide-frequency Oscillation in Power Grid[J].Automation of Electric Power Systems,2021,45(11):152-159. DOI: 10.7500/AEPS20200728005.
大量电力电子设备接入电网导致电网振荡频繁发生并使其逐步向宽频域振荡发展。首先,分析了广域测量系统监测技术在振荡监测存在的问题和局限,讨论了现有间谐波测量算法存在的不足,提出了电网宽频振荡实时监测技术方案。然后,论述了振荡实时监测的总体架构和关键技术,从高频采集及滤波、宽频信号分类处理分析、振荡告警及长录波、站域存储与分析和信息传输等方面对宽频振荡实时监测的关键环节进行了分析。最后,对宽频振荡实时测量的效果进行了仿真验证,验证了所提方案的可行性,并对其工程实施方案进行了论述。
A large number of power electronic devices connecting to the power grid have caused frequent grid oscillation and make it gradually develop into wide-frequency oscillation. First of all
the problems and limitations of monitoring technology for the wide-area measurement system (WAMS) in oscillation monitoring are analyzed. The shortcomings of the existing inter-harmonic measurement algorithms are discussed
and a technical solution for real-time monitoring of wide-frequency oscillation in the power grid is proposed. Then
the overall architecture and key technologies of real-time oscillation monitoring are discussed. The key links of the real-time wide-frequency oscillation monitoring are analyzed from the aspects of high-frequency acquisition and filtering
wide-frequency signal classification processing and analysis
oscillation warning and long-disturbance recording
station domain storage and analysis
and information transmission. Finally
the effect of real-time measurement of wide-frequency oscillation is simulated to verify the feasibility of the proposed scheme
and its engineering implementation scheme is discussed.
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