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1.清华大学电机工程与应用电子技术系,北京市 100084
2.电力系统及大型发电设备安全控制和仿真国家重点实验室,清华大学,北京市 100084
3.国网重庆市电力公司电力科学研究院,重庆市 401123
Received:07 August 2020,
Revised:2020-12-24,
Published Online:01 March 2021,
Published:10 July 2021
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李凯斌,谢刚文,陈磊等.基于系统开环频率特性的自动发电控制振荡分析[J].电力系统自动化,2021,45(13):133-140.
LI Kaibin,XIE Gangwen,CHEN Lei,et al.Analysis of Automatic Generation Control Oscillation Based on Open-loop Frequency Characteristic of System[J].Automation of Electric Power Systems,2021,45(13):133-140.
李凯斌,谢刚文,陈磊等.基于系统开环频率特性的自动发电控制振荡分析[J].电力系统自动化,2021,45(13):133-140. DOI: 10.7500/AEPS20200807003.
LI Kaibin,XIE Gangwen,CHEN Lei,et al.Analysis of Automatic Generation Control Oscillation Based on Open-loop Frequency Characteristic of System[J].Automation of Electric Power Systems,2021,45(13):133-140. DOI: 10.7500/AEPS20200807003.
频率振荡中与自动发电控制(AGC)过程强相关的振荡被称为AGC振荡。基于单机单负荷系统,利用开环传递函数对AGC振荡进行分析,并通过分析不同参数或环节对开环传递函数频率特性的影响,研究其对AGC振荡的影响,结果表明:AGC参数中频差系数及积分系数过大、AGC传输延时过大、机组环节频率特性的幅值过大或相位滞后过大,都会导致系统开环传递函数的稳定裕度过小甚至为负,从而降低系统稳定性甚至引发AGC振荡。分析了机组特性对于AGC振荡的影响:一次调频起作用时,机组环节的幅值将会降低,从而提高AGC模式的稳定性;不同的水火电机组,其原动机环节的相位滞后不同,这会影响开环传递函数的相位裕度,进而影响AGC模式稳定性;机组的开度模式一般比功率模式拥有更快的一次调频调节速度,此时采用开度模式,机组在振荡频率处的幅值更低,系统AGC模式更稳定。特征值分析验证了理论分析的结果,且在多机多负荷系统算例中,验证了基于单机单负荷系统分析得到的结论。
For frequency oscillation
the oscillation strongly related to the process of automatic generation control (AGC) is called AGC oscillation. Based on the single-unit single-load system
the AGC oscillation is analyzed using open-loop transfer function. And the influences of various parameters or elements on AGC oscillation are studied by analyzing their influences on frequency characteristics of the open-loop transfer function. The results show that the stability margin of the open-loop transfer function of the system will be too small or even negative
thus reducing the stability of the system and even causing AGC oscillation if the frequency response coefficient and integral coefficient of AGC parameters are too large
the transmission delay of AGC is too long
and the amplitude or phase lag of the frequency characteristic in the generation unit is too large. The influences of the unit characteristics on AGC oscillation are also studied. When primary frequency regulation works
the amplitude of the unit will be smaller
thus improving the stability of AGC mode. The phase lags of prime movers for different hydropower or thermal units are different
which will affect the phase margin of the open-loop transfer function
and then affect the stability of AGC mode. The opening regulation mode tends to have faster primary frequency regulation speed than power regulation mode. Therefore
when adopting opening regulation mode
the unit will have lower amplitude at the oscillation frequency to make the AGC mode more stable. The results of theoretical analysis are all verified by eigenvalue analysis. Moreover
in the example of a multi-unit multi-load system
the conclusions based on the single-machine single-load system are verified.
路晓敏 , 陈磊 , 陈亦平 , 等 . 电力系统一次调频过程的超低频振荡分析 [J]. 电力系统自动化 , 2017 , 41 ( 16 ): 64 - 70 .
LU Xiaomin , CHEN Lei , CHEN Yiping , et al . Ultra-low-frequency oscillation of power system primary frequency regulation [J]. Automation of Electric Power Systems , 2017 , 41 ( 16 ): 64 - 70 .
电力系统安全稳定导则 : GB 38755—2019 [S]. 北京 : 中国电力出版社 , 2019 .
Code on security and stability for power system : GB 38755—2019 [S]. Beijing : China Electric Power Press , 2019 .
陈锦洲 , 段荣华 , 陈磊 , 等 . 电力系统调频控制相关的频率振荡问题 [J]. 电力系统自动化 , 2019 , 43 ( 18 ): 82 - 90 .
CHEN Jinzhou , DUAN Ronghua , CHEN Lei , et al . Frequency oscillation related to frequency regulation control of power system [J]. Automation of Electric Power Systems , 2019 , 43 ( 18 ): 82 - 90 .
刘春晓 , 张俊峰 , 陈亦平 , 等 . 异步联网方式下云南电网超低频振荡的机理分析与仿真 [J]. 南方电网技术 , 2016 , 10 ( 7 ): 29 - 34 .
LIU Chunxiao , ZHANG Junfeng , CHEN Yiping , et al . Mechanism analysis and simulation on ultra-low frequency oscillation of Yunnan Power Grid in asynchronous interconnection mode [J]. Southern Power System Technology , 2016 , 10 ( 7 ): 29 - 34 .
徐敏 , 陈亦平 , 涂亮 , 等 . 异步联网后AGC超调引起频率波动的问题分析 [J]. 广东电力 , 2017 , 30 ( 5 ): 81 - 86 .
XU Min , CHEN Yiping , TU Liang , et al . Analysis on frequency fluctuation caused by AGC overshoot after asynchronous interconnection [J]. Guangdong Electric Power , 2017 , 30 ( 5 ): 81 - 86 .
付超 , 柳勇军 , 涂亮 , 等 . 云南电网与南方电网主网异步联网系统试验分析 [J]. 南方电网技术 , 2016 , 10 ( 7 ): 1 - 5 .
FU Chao , LIU Yongjun , TU Liang , et al . Experiment and analysis on asynchronously interconnected system of Yunnan Power Grid and main grid of China Southern Power Grid [J]. Southern Power System Technology , 2016 , 10 ( 7 ): 1 - 5 .
杜斌 , 张丹 , 张军民 , 等 . 异步联网后云南电网的稳定特性与控制措施 [J]. 南方电网技术 , 2016 , 10 ( 7 ): 13 - 16 .
DU Bin , ZHANG Dan , ZHANG Junmin , et al . Stability characteristics and control measures of Yunnan Power Grid after asynchronous interconnection [J]. Southern Power System Technology , 2016 , 10 ( 7 ): 13 - 16 .
张建新 , 刘春晓 , 陈亦平 , 等 . 异步联网方式下云南电网超低频振荡的抑制措施与试验 [J]. 南方电网技术 , 2016 , 10 ( 7 ): 35 - 39 .
ZHANG Jianxin , LIU Chunxiao , CHEN Yiping , et al . Countermeasures and experiments on ultra-low frequency oscillation of Yunnan Power Grid in asynchronous interconnection mode [J]. Southern Power System Technology , 2016 , 10 ( 7 ): 35 - 39 .
陈磊 , 路晓敏 , 陈亦平 , 等 . 多机系统超低频振荡分析与等值方法 [J]. 电力系统自动化 , 2017 , 41 ( 22 ): 10 - 15 .
CHEN Lei , LU Xiaomin , CHEN Yiping , et al . Analysis of ultra-low-frequency oscillations in multi-machine system and equivalent method [J]. Automation of Electric Power Systems , 2017 , 41 ( 22 ): 10 - 15 .
陈磊 , 路晓敏 , 陈亦平 , 等 . 利用暂态能量流的超低频振荡在线分析与紧急控制方法 [J]. 电力系统自动化 , 2017 , 41 ( 17 ): 9 - 14 .
CHEN Lei , LU Xiaomin , CHEN Yiping , et al . Online analysis and emergency control of ultra-low-frequency oscillations using transient energy flow [J]. Automation of Electric Power Systems , 2017 , 41 ( 17 ): 9 - 14 .
杨荣照 , 陈亦平 , 夏成军 , 等 . 高比例水电系统AGC稳定性分析及控制策略优化 [J]. 电网技术 , 2020 , 44 ( 3 ): 880 - 886 .
YANG Rongzhao , CHEN Yiping , XIA Chengjun , et al . Stability analysis and control strategy optimization of AGC with high-proportion hydropower system [J]. Power System Technology , 2020 , 44 ( 3 ): 880 - 886 .
LIU M , YANG L , GAN D , et al . The stability of AGC systems with commensurate delays [J]. International Transactions on Electrical Energy Systems , 2010 , 17 ( 6 ): 615 - 627 .
陈锦洲 , 陈磊 , 陈亦平 , 等 . 基于Pade近似的电力系统频率振荡模式延时轨迹分析 [J]. 电力系统自动化 , 2019 , 43 ( 14 ): 120 - 125 .
CHEN Jinzhou , CHEN Lei , CHEN Yiping , et al . Trajectory analysis of time delay for frequency oscillation mode of power system based on Pade approximation [J]. Automation of Electric Power Systems , 2019 , 43 ( 14 ): 120 - 125 .
陈锦洲 . 电力系统AGC控制过程相关振荡问题研究 [D]. 北京 : 清华大学 , 2019 .
CHEN Jinzhou . Research on oscillation problems related to automatic generation control in power system [D]. Beijing : Tsinghua University , 2019 .
YANG R , CHEN Y , XIA C . Analysis of frequency oscillation caused by AGC control in Yunnan Power Grid [C]// 2018 International Conference on Power System Technology (POWERCON) , November 6 - 8 , 2018 , Guangzhou , China .
黄伟 , 段荣华 , 江崇熙 , 等 . 多机系统超低频振荡稳定分析与调速器参数优化 [J]. 电力系统自动化 , 2018 , 42 ( 21 ): 185 - 191 .
HUANG Wei , DUAN Ronghua , JIANG Chongxi , et al . Stability analysis of ultra-low frequency oscillation and governor parameter optimization for multi-machine system [J]. Automation of Electric Power Systems , 2018 , 42 ( 21 ): 185 - 191 .
倪以信 . 动态电力系统的理论和分析 [M]. 北京 : 清华大学出版社 , 2002 .
NI Yixin . Theory and analysis of power system dynamics [M]. Beijing : Tsinghua University Press , 2002 .
同步发电机原动机及其调节系统参数实测与建模导则 : DL/T 1235—2013 [S]. 北京 : 中国电力出版社 , 2013 .
Guide for modeling and testing of generator prime mover and governing system : DL/T 1235—2013 [S]. Beijing : China Electric Power Press , 2013 .
朱钰 . 汽轮发电机组转速波动反演与分析 [D]. 哈尔滨 : 哈尔滨工程大学 , 2015 .
ZHU Yu . Numerical simulation and analysis of speed fluctuation of the steam turbine generator system [D]. Harbin : Harbin Engineering University , 2015 .
胡寿松 . 自动控制原理 [M]. 北京 : 科学出版社 , 2013 .
HU Shousong . Principle of automatic control [M]. Beijing : Science Press , 2013 .
闵勇 , 陈磊 , 姜齐荣 . 电力系统稳定分析 [M]. 北京 : 清华大学出版社 , 2016 .
MIN Yong , CHEN Lei , JIANG Qirong . Power system stability [M]. Beijing : Tsinghua University Press , 2016 .
陈磊 , 张林 , 闵勇 , 等 . 单机等值系统调速器死区对频率振荡的影响 [J]. 电力系统自动化 , 2019 , 43 ( 7 ): 107 - 112 .
CHEN Lei , ZHANG Lin , MIN Yong , et al . Influence of deadband of governor on frequency oscillation in single machine equivalent system [J]. Automation of Electric Power Systems , 2019 , 43 ( 7 ): 107 - 112 .
何常胜 , 董鸿魁 , 翟鹏 , 等 . 水电机组一次调频与AGC典型控制策略的工程分析及优化 [J]. 电力系统自动化 , 2015 , 39 ( 3 ): 146 - 151 .
HE Changsheng , DONG Hongkui , ZHAI Peng , et al . Engineering analysis and optimization on typical control strategy of primary frequency modulation and automatic generation control of hydropower units [J]. Automation of Electric Power Systems , 2015 , 39 ( 3 ): 146 - 151 .
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