PSS在抑制电力系统低频振荡上的研究
摘要
PSS(电力系统稳定器)是目前已经被证实的最有效的阻尼低频振荡的手段,也是国际大电网会议推荐的首选措施。随着电网规模的不断扩大,低频振荡的发生也越来越多,于是各国纷纷在电网中大量投入PSS装置,以抑制低频振荡、加强系统阻尼、提高电网的动态稳定性。
发电机励磁控制系统对电力系统的静态稳定、动态稳定和暂态稳定性都有显著的影响。在电力系统稳定计算中采用不同的励磁系统模型和参数,其计算结果会产生较大的差异。因此需要能正确反映实际运行设备运行状态的数学模型和参数,使得计算结果真实可靠。
随着我国电力系统全国联网和西电东送工程的实施,对电力系统稳定计算提出了更高的要求。新的稳定导则要求发电机采用精确模型,也要求在计算中采用实际的励磁系统模型和参数。
本文结合“兰西热电厂9号发电机PSS参数设计、现场试验”的课题深入PSS对电力系统低频振荡上的应用研究,对励磁系统模型参数辨识、PSS参数设计、试验方法和分析计算进行了深入研究与实践,并通过现场试验再次优化、校正参数的方法在PSS的参数整定取得了显著的效果。这是结合了甘肃省电力系统分析.进行PSS设计的火电机组,具有重要的现实意义和推广应用价值。
Now PSS(Power System Stabilizer)has been proved the most effective means to damp LFO(Low Frequency Oscillation)what also is the preferred measure recom -mended by the international Power Grid meeting,with the continuous expansion of Power Grid,LFO occurs more and more,so every country have put in the PSS device to strengthen system damp for damping LFO and to improve the dynamic stability of Power Grid.
Excitation control system of generator has significant impact on stability of the static and dynamic and transient of the Power System.Due to we adopt the different models and parameters,so the calculation results of the Power Sytem will have much difference.Therefore,it needs mathematical models and parameters what can reflect the actual operation state of the equipment and can make the results reliable.
As network of our Power System and project of "transmits electricity from west to east" implemented,it is put forward the higher claims to calculate the stability of Power System.New stabilization guidelines require using precise generator models and actual excitation system models and parameters in the calculation.
In the paper,combining with the subject "PSS parameters design and field test of 9th generator in LanXi heating and Power Plant",the author has deep research of PSS on damping LFO,the parameter identification to excitation system,test methods, analysis calculation,so it achieves remarkable results through optimization field test again,calibrate parameters of the PSS in the tuning parameters.Combining with the thermal generator set of the Gansu Power System,the paper has the popularize value and real-life significance.
发电机励磁控制系统对电力系统的静态稳定、动态稳定和暂态稳定性都有显著的影响。在电力系统稳定计算中采用不同的励磁系统模型和参数,其计算结果会产生较大的差异。因此需要能正确反映实际运行设备运行状态的数学模型和参数,使得计算结果真实可靠。
随着我国电力系统全国联网和西电东送工程的实施,对电力系统稳定计算提出了更高的要求。新的稳定导则要求发电机采用精确模型,也要求在计算中采用实际的励磁系统模型和参数。
本文结合“兰西热电厂9号发电机PSS参数设计、现场试验”的课题深入PSS对电力系统低频振荡上的应用研究,对励磁系统模型参数辨识、PSS参数设计、试验方法和分析计算进行了深入研究与实践,并通过现场试验再次优化、校正参数的方法在PSS的参数整定取得了显著的效果。这是结合了甘肃省电力系统分析.进行PSS设计的火电机组,具有重要的现实意义和推广应用价值。
Now PSS(Power System Stabilizer)has been proved the most effective means to damp LFO(Low Frequency Oscillation)what also is the preferred measure recom -mended by the international Power Grid meeting,with the continuous expansion of Power Grid,LFO occurs more and more,so every country have put in the PSS device to strengthen system damp for damping LFO and to improve the dynamic stability of Power Grid.
Excitation control system of generator has significant impact on stability of the static and dynamic and transient of the Power System.Due to we adopt the different models and parameters,so the calculation results of the Power Sytem will have much difference.Therefore,it needs mathematical models and parameters what can reflect the actual operation state of the equipment and can make the results reliable.
As network of our Power System and project of "transmits electricity from west to east" implemented,it is put forward the higher claims to calculate the stability of Power System.New stabilization guidelines require using precise generator models and actual excitation system models and parameters in the calculation.
In the paper,combining with the subject "PSS parameters design and field test of 9th generator in LanXi heating and Power Plant",the author has deep research of PSS on damping LFO,the parameter identification to excitation system,test methods, analysis calculation,so it achieves remarkable results through optimization field test again,calibrate parameters of the PSS in the tuning parameters.Combining with the thermal generator set of the Gansu Power System,the paper has the popularize value and real-life significance.
引文
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[3]余耀南.动态电力系统[M].水利电力出版社,1985.
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[6]芦晶晶,郭剑,田芳,等.基于Prony方法的电力系统振荡模式分析及PSS参数设计[J].电网技术,2004,28(15):31-34
[7]王庆红,周双喜,胡国根.电力系统静态分叉及其控制[J].电网技术,2004,28(13):6-12
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[26]杨晓东,房大中,刘长胜,宋文南.阻尼联络线低频振荡的SVC自适应模糊控制器研究[J].中国电机工程学报,2003,23(1):55-59,63
[27]常勇,徐政.SVC广域辅助控制阻尼区域间低频振荡[J].电工技术学报,2006,21(12):40-46
[28]A.Nabavi-Niaki and M.R.Iravani,Steady-state and dynamic models of unified power flow controller(UPFC)for power system studies,IEEE Tran.on PWRS,1996,11(4)
[29]王海风,李敏,李乃湖等.利用晶闸管控制移相装置和串联补偿器镇定电力系低频振荡分析[J].中国电机工程学报,1999,19(8):66-71
[30]范展滔.交直流混合输电系统低频振荡分析及其抑制措施研究[C].2005.11.1
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[34]杨汉如,阎伟等.电力系统稳定器(PSS)设计的一种新思路[J].西北水力发电,2004,20(4):13-16
[35]田立军,郭雷,陈晰.H∞电力系统稳定器的设计[J].中国电机工程学报,1999,19(3)59-62
[36]杨琳,赵书强.H∞设计中加权函数的选择及模型降阶[J].华北电大学学报,2003,30(2):15-19
[37]杨秀,王西田,陈陈.利用LMI技术设计鲁棒电力系统稳定器[J].继电器,2005,33(2):1-4
[38]蔡超豪.可抑制低频振荡的鲁棒电力系统稳定器设计[J]电力科学与工程,2006(1):22-26
[39]张少如,吴爱国.基于简单自适应控制的电力系统稳定器[J].电工技术学报,2006,21(9):62-66
[40]管霖,程时杰等.神经网络电力系统稳定器的设计与实现[J].中国电机工程学报,1996,19(6):384-487
[41]梁有伟,胡志坚,陈允平.基于神经网络逆系统的电力系统稳定器的研究[J].电工技术学报,2004,19(5):61-65;14
[42]王克文,谢志棠.基于概率特征根分析的电力系统稳定器参数设计[J].电力系统自动化,2001,25(11):20-23
[43]江全元.基于极大极小值原理的电力系统稳定器的设计[J].浙江大学学报(工学版),2005,39(12):1979-1983
[44]赵辉,刘鲁源,张更新.基于微粒群优化算法的最优电力系统稳定器设计[J].电网技术,2006,30(3):32-35
[45]赵亮,陈陈.基于免疫算法的单机系统电力系统稳定器的设计[J].低压电器,2004,(10):37-40
[46]张学佳,马立新等.复合智能控制型电力系统稳定器的研究[J].上海理工大学学报,2007,29(3)
[47]赵书强,丁峰,侯子利等.自寻优模糊电力系统稳定器的设计[J].电工技术学报,2004,19(3):94-98
[48]赵辉,刘鲁源,王红君等.基于遗传算法的窄间距隶属函数在模糊逻辑电力系统稳定器设计中的应用[J].低压电器,2005,(2):38-41
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[52]朱振青.励磁控制与电力系统稳定[M].水利电力出版社,1993.
[53]倪以信,陈寿孙,张宝霖,动态电力系统的理论和分析,北京:清华大学出版社,2002
[54]竺士章.发电机励磁系统试验[M].北京:中国电力出版社,2005
[2]Demello F P,Concordia C.Concepts of synchronous machine stability as affected by excitation control[J].IEEE Trans on PAS,1969(4):316-329.
[3]余耀南.动态电力系统[M].水利电力出版社,1985.
[4]杨晓菊,邓集祥.低频振荡中的非奇异现象[J].吉林电力技术,1999(3),4-7.
[5]邹江峰,刘涤尘,潘晓杰,等.电力系统低频振荡故障模式的研究与分析[J].高电压技术,2005,31(7):45-47
[6]芦晶晶,郭剑,田芳,等.基于Prony方法的电力系统振荡模式分析及PSS参数设计[J].电网技术,2004,28(15):31-34
[7]王庆红,周双喜,胡国根.电力系统静态分叉及其控制[J].电网技术,2004,28(13):6-12
[8]夏成军,周良松,彭波等.基于正规形理论的电力系统振荡稳定分析[J].继电器,2001,29(8):13-16
[9]Sancha J L,Perez Arriaga I J.Selective modal analysis of power system oscillatory instability[J].IEEE Trans on Power Systems,1998,3(2):429-438
[10]Byerly R T,Bennon R J,Sherman D E.Eigenvalue analysis of synchronizing power system oscillations in large electric power systems[J].IEEE Trans on PAS,1982,101(1):235-243.
[11]Hauer J F,Demeure CJ,Scharf L L.Initial result s in prony analysis of power system response signal[J].IEEE Trans on Power Systems,1990,5(1):80-89
[12]Trudnowski D I.Order reduction of large2scale linear oscillatory system models[J].IEEE Transactions on Power Systems,1994,9(1):507-512
[13]Amano M,Watanabe M,Banjo M.Self-testing and self-turning of power system stabilizers using prony analysis[J].IEEE Trans on Power Systems,1998,10(3):230-236
[14]Hauer J F,Demeure CJ,Scharf L L.InitiaI results in prony analysis of power system response signals[J].IEEE Trans on Power Systems,1990,5(1):80-89
[15]Trudnowski D J,Johnson J M,Hauer J F.Making prony analysis more accurate using multiple signals[J].IEEE Trans on Power Systems,1999,14(1):226-231
[16]Kosterev D N,Taylor C W,Mit telstadt W A.Modal validation forther august 10,1996WSCC System outage[J].IEEE Trans on Power Systems,1999,14(3):967-979
[17]刘劲,吴小辰,孙扬声等.电力系统静态失稳和周期振荡的局部分叉分析[J].电力系统自化,1995,19(12):25-28
[18]徐东杰,贺仁睦,胡国强,等.正规形方法在互联电网低频振荡分析中的应用[J].中国电机 工程学报,2004,24(3):18-23
[19]Chih Ming Lin,Vittal V,Kliemann W,et al.Investigation of model interaction and its effect on control performance in stressed power system using normal forms of vector fields [J].IEEE Trans on Power Systems,1996,11(2):781-787
[20]Sobajic D J.An introduction to normal forms of vector fields:new framework for assessing stability of highly stressed power systems[C].Electro Technical Conference 1996,MEL ECON' 96,8th Mediterranean,1996:108-111
[21]Lam S L Y,Dik Lun Lee.Feature reduction for neural network based small signal stability assessment[C].14th PSCC.Sevilla,2002.
[22]Breulmann H,Grebe E,Losing M,et al.Analysis and damping of inter area oscillation in the UCTE/CENTREL power system[C].International Council on Large Electric Systems (CIGRE)Session 2000.Paris,France,2000,38-113
[23]郝思鹏.电力系统低频振荡综述[J].南京工程学院学报(自然科学版),2003,1(1):1-8.
[24]J.Dixon[英],黄艳燕(译),王卫安(校).无功补偿技术的发展[J].变流技术与电力牵引,2006,(5)31-32
[25]J.Dixon[英],黄艳燕(译),王卫安(校).无功补偿技术的发展[J].变流技术与电力牵引,2006,(6)19-24
[26]杨晓东,房大中,刘长胜,宋文南.阻尼联络线低频振荡的SVC自适应模糊控制器研究[J].中国电机工程学报,2003,23(1):55-59,63
[27]常勇,徐政.SVC广域辅助控制阻尼区域间低频振荡[J].电工技术学报,2006,21(12):40-46
[28]A.Nabavi-Niaki and M.R.Iravani,Steady-state and dynamic models of unified power flow controller(UPFC)for power system studies,IEEE Tran.on PWRS,1996,11(4)
[29]王海风,李敏,李乃湖等.利用晶闸管控制移相装置和串联补偿器镇定电力系低频振荡分析[J].中国电机工程学报,1999,19(8):66-71
[30]范展滔.交直流混合输电系统低频振荡分析及其抑制措施研究[C].2005.11.1
[31]韩英铎.电力系统最优分散协调控制[M].北京:清华大学出版社,1997.
[32]卢强,孙元章.电力系统非线性控制[M].北京:科学出版社,1993.
[33]方思立,朱方.电力系统稳定器的原理及应用[M].北京:中国电力出版社,1996.123-132
[34]杨汉如,阎伟等.电力系统稳定器(PSS)设计的一种新思路[J].西北水力发电,2004,20(4):13-16
[35]田立军,郭雷,陈晰.H∞电力系统稳定器的设计[J].中国电机工程学报,1999,19(3)59-62
[36]杨琳,赵书强.H∞设计中加权函数的选择及模型降阶[J].华北电大学学报,2003,30(2):15-19
[37]杨秀,王西田,陈陈.利用LMI技术设计鲁棒电力系统稳定器[J].继电器,2005,33(2):1-4
[38]蔡超豪.可抑制低频振荡的鲁棒电力系统稳定器设计[J]电力科学与工程,2006(1):22-26
[39]张少如,吴爱国.基于简单自适应控制的电力系统稳定器[J].电工技术学报,2006,21(9):62-66
[40]管霖,程时杰等.神经网络电力系统稳定器的设计与实现[J].中国电机工程学报,1996,19(6):384-487
[41]梁有伟,胡志坚,陈允平.基于神经网络逆系统的电力系统稳定器的研究[J].电工技术学报,2004,19(5):61-65;14
[42]王克文,谢志棠.基于概率特征根分析的电力系统稳定器参数设计[J].电力系统自动化,2001,25(11):20-23
[43]江全元.基于极大极小值原理的电力系统稳定器的设计[J].浙江大学学报(工学版),2005,39(12):1979-1983
[44]赵辉,刘鲁源,张更新.基于微粒群优化算法的最优电力系统稳定器设计[J].电网技术,2006,30(3):32-35
[45]赵亮,陈陈.基于免疫算法的单机系统电力系统稳定器的设计[J].低压电器,2004,(10):37-40
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