直接电压型SVC特性分析
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摘要
随着电网的不断发展,电力系统对运行灵活性和安全性的要求不断提高。电网系统的无功功率需求增大的时候不能及时补偿无功功率,就可能导致电网系统出现大停电事故,静止无功补偿器(SVC)是一种不受领先.滞后范围限制、响应时间短、能快速调节无功功率的装置,采用静止无功补偿器(SVC)控制系统来提供动态无功补偿是目前最有效、应用广泛的措施,对电网的安全稳定运行具有极其重要的意义。
本文详细分析比较了当今无功功率补偿装置的特点,探讨了无功功率补偿的的选址定容原则,分析比较了四种控制策略的特点,研究了一种新型的静止无功补偿器——直接电压型SVC,详细分析了直接电压型SVC的静态特性,并结合经典的单机.动态负荷模型,利用电压稳定工具箱(VST)对其分岔点进行研究。研究表明,直接电压型SVC在系统发生短路故障时,系统电压大幅度下降需要向系统提供更多的无功功率支持时,直接电压型SVC可以提供较其它形式SVC更多的无功功率支持。通过对单机.动态负荷模型添加无功功率动态补偿装置,可以改变原系统的分岔点,增加了负荷极限,从而提高了系统电压稳定性。
With the continuous development of the grid, power system operation flexibility and security has kept rising. Power system reactive power demand increases when the reactive power compensation can not be timely, it could lead to big power system blackout. The static var compensator (SVC) is the device which is not the lead. lag limit, short response time and quick adjusting reactive power. Used the static var compensator (SVC) control system to provide dynamic reactive power compensation is the most effective and widely used measures, it has an extremely important meaning security and stability of the grid operation.
This detailed analysis and comparison of the current reactive power compensation device characteristics of the reactive power compensation principle of the location of constant volume, the characteristics of the four control strategies are analyzed and compared here. A new type of static var compensator. Direct Voltage SVC, detailed analysis of static characteristics of the direct voltage SVC, combined with the classic single. dynamic load model, using voltage stability toolbox (VST) to study its bifurcation point. The results show that the direct voltage SVC can support more reactive power when short circuit fault occurred in the system, the system voltage dropped significantly which needs more reactive power. Through the single-dynamic load model dynamic reactive power compensation device can change the original system bifurcation point, increase the load limits and improve the system voltage stability.
本文详细分析比较了当今无功功率补偿装置的特点,探讨了无功功率补偿的的选址定容原则,分析比较了四种控制策略的特点,研究了一种新型的静止无功补偿器——直接电压型SVC,详细分析了直接电压型SVC的静态特性,并结合经典的单机.动态负荷模型,利用电压稳定工具箱(VST)对其分岔点进行研究。研究表明,直接电压型SVC在系统发生短路故障时,系统电压大幅度下降需要向系统提供更多的无功功率支持时,直接电压型SVC可以提供较其它形式SVC更多的无功功率支持。通过对单机.动态负荷模型添加无功功率动态补偿装置,可以改变原系统的分岔点,增加了负荷极限,从而提高了系统电压稳定性。
With the continuous development of the grid, power system operation flexibility and security has kept rising. Power system reactive power demand increases when the reactive power compensation can not be timely, it could lead to big power system blackout. The static var compensator (SVC) is the device which is not the lead. lag limit, short response time and quick adjusting reactive power. Used the static var compensator (SVC) control system to provide dynamic reactive power compensation is the most effective and widely used measures, it has an extremely important meaning security and stability of the grid operation.
This detailed analysis and comparison of the current reactive power compensation device characteristics of the reactive power compensation principle of the location of constant volume, the characteristics of the four control strategies are analyzed and compared here. A new type of static var compensator. Direct Voltage SVC, detailed analysis of static characteristics of the direct voltage SVC, combined with the classic single. dynamic load model, using voltage stability toolbox (VST) to study its bifurcation point. The results show that the direct voltage SVC can support more reactive power when short circuit fault occurred in the system, the system voltage dropped significantly which needs more reactive power. Through the single-dynamic load model dynamic reactive power compensation device can change the original system bifurcation point, increase the load limits and improve the system voltage stability.
引文
[1]周双喜,朱凌志,郭锡玖,王小海.电力系统电压稳定性及其控制.北京,中国电力出版社,2004,45-195.
[2]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,2002,93-235.
[3]程浩忠,吴浩.电力系统无功与电压稳定性.北京,中国电力出版社,2004,15-210.
[4]肖湘宁.电能质量分析与控制.北京,中国电力出版社,2004,8-180.
[5]周孝信,郭剑波,林集明,武守远.电力系统可控串联电容补偿.北京,科学出版社,2009,103-247.
[6]姜宁,王春宁,董其国.无功电压与优化技术问答.北京,中国电力出版社,2006,70-230.
[7]李致恒,李海钧,陆孟君.城乡电力网无功补偿技术.北京,水利电力出版社,1988,43-180.
[8]王兆安,杨君,刘进军.谐波抑制和无功功率补偿.北京,机械工业出版社,1998,16-185.
[9]Claudio A. Canizares, Zeno T. Faur. Analysis of SVC and TCSC Controllers in Voltage Collapse. IEEE, Vol.14, No.1,1999,158-164.
[10]Ian A. Hiskens, Cameron B. McLean. SVC BEHAVIOUR UNDER VOLTAGE COLLAPSE CONDITIONS. IEEE, Vol.7. No.3,1992,1078-1084.
[11]PAOLO MATTAVELLI, GEORGE C. VERGHESE, ALEKSANDAR M. STANKOVIC. Phasor Dynamics of Thyristor. Controlled Series Capacitor Systems. IEEE, Vol.12, No.3,1997,1259-1267.
[12]陈君诚.高压无触点无功功率补偿装置.中国,ZL.01117537.0[P].2004.1.7
[13]杨翠茹.直接电压性SVC静态性能分析和动态仿真.太原理工大学硕士学位论文,2006,12-43.
[14]大西一彦,阴野茂,宫田纪夫.SVC在电力系统中的应用及其最新动向.电力电容器第3期,1990,57-65.
[15]徐丹丹.SVC对城市电网动态电压无功特性的影响.华北电力大学硕士学位论文,2007,20-48.
[16]苏建设,乔颖,陈陈.含SVC的组合电力系统动态建模及稳定性分析方法.电力系统自动化,2003,Vol.27,No.3,13-16.
[17]包黎昕,段献忠,陈峰,何仰赞.SVC和TCSC提高电压稳定性作用的动态分析.电力系统自动化,2001,Vol.25,No.13,21-24.
[18]张敏.包含静止同步补偿器的电力系统稳定性分析与非线性鲁棒控制.中南大学博士学位论文,2004,13-54.
[19]柏晓路,刘涤尘,党杰等.TCSC数学模型和控制技术研究综述.电力科学与工程,2008,Vol.24,No.2,29-33.
[20]张东霞,童陆园,尹忠东,王仲鸿.描述可控串补装置暂态特性的数学模型.中国电机工程学报,1999,No.5,30-34.
[21]张彦魁,张焰,吴蓓,周坚.静止无功补偿器建模及其在电力稳定研究中的用.上海交通大学学报,2007,Vol.41,No.3,488-491.
[22]赵学强,陈陈.晶闸管控制的串联电容补偿模型的综合研究.电力系统自动化,1999,No.6,31-35.
[23]何瑞文,蔡泽祥.结合谐波特征的可控串补动态相量法建模与特性分析.中国电机工程学报,2005,Vol.25,No.5,28-32.
[24]姚舜.新型静止无功发生器(ASVG)控制策略与装置的研究.湖南大学硕士学位论文,2007,20-45.
[25]吴昊,叶彬,曹一家.装有SVC和STATCOM的电力系统线性模型及其控制器其交互影响研究.江南大学学报,2004,134-139.
[26]张智.非线性PID系统控制的SVC的模型与电力系统数字仿真.天津大学硕士论文,2005,21-50.
[27]王立伟,房大中,钟德成.含静止无功补偿器的电力系统混合仿真新算法研究.电力系统及其自动化学报.2004,Vol.16,No.1,74-78.
[28]缪梅.基于SVC考虑谐波污染的无功优化.河海大学硕士论文,2007,23-49.
[29]金黎明.静止无功补偿系统动态特性与控制策略的仿真研究.华北电力大学硕士论文,2007,18-50.
[30]王皓.单相混合型谐波和无功补偿系统研究.北京交通大学硕士论文,2008,23-47.
[31]杨秀,金红核,郭晨吉,陈雨,陈鸿煜.应用分岔理论分析SVC对电力系统电压稳定性的影响.电力系统保护与控制,2009,Vol.37,No.7,9-11.
[2]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,2002,93-235.
[3]程浩忠,吴浩.电力系统无功与电压稳定性.北京,中国电力出版社,2004,15-210.
[4]肖湘宁.电能质量分析与控制.北京,中国电力出版社,2004,8-180.
[5]周孝信,郭剑波,林集明,武守远.电力系统可控串联电容补偿.北京,科学出版社,2009,103-247.
[6]姜宁,王春宁,董其国.无功电压与优化技术问答.北京,中国电力出版社,2006,70-230.
[7]李致恒,李海钧,陆孟君.城乡电力网无功补偿技术.北京,水利电力出版社,1988,43-180.
[8]王兆安,杨君,刘进军.谐波抑制和无功功率补偿.北京,机械工业出版社,1998,16-185.
[9]Claudio A. Canizares, Zeno T. Faur. Analysis of SVC and TCSC Controllers in Voltage Collapse. IEEE, Vol.14, No.1,1999,158-164.
[10]Ian A. Hiskens, Cameron B. McLean. SVC BEHAVIOUR UNDER VOLTAGE COLLAPSE CONDITIONS. IEEE, Vol.7. No.3,1992,1078-1084.
[11]PAOLO MATTAVELLI, GEORGE C. VERGHESE, ALEKSANDAR M. STANKOVIC. Phasor Dynamics of Thyristor. Controlled Series Capacitor Systems. IEEE, Vol.12, No.3,1997,1259-1267.
[12]陈君诚.高压无触点无功功率补偿装置.中国,ZL.01117537.0[P].2004.1.7
[13]杨翠茹.直接电压性SVC静态性能分析和动态仿真.太原理工大学硕士学位论文,2006,12-43.
[14]大西一彦,阴野茂,宫田纪夫.SVC在电力系统中的应用及其最新动向.电力电容器第3期,1990,57-65.
[15]徐丹丹.SVC对城市电网动态电压无功特性的影响.华北电力大学硕士学位论文,2007,20-48.
[16]苏建设,乔颖,陈陈.含SVC的组合电力系统动态建模及稳定性分析方法.电力系统自动化,2003,Vol.27,No.3,13-16.
[17]包黎昕,段献忠,陈峰,何仰赞.SVC和TCSC提高电压稳定性作用的动态分析.电力系统自动化,2001,Vol.25,No.13,21-24.
[18]张敏.包含静止同步补偿器的电力系统稳定性分析与非线性鲁棒控制.中南大学博士学位论文,2004,13-54.
[19]柏晓路,刘涤尘,党杰等.TCSC数学模型和控制技术研究综述.电力科学与工程,2008,Vol.24,No.2,29-33.
[20]张东霞,童陆园,尹忠东,王仲鸿.描述可控串补装置暂态特性的数学模型.中国电机工程学报,1999,No.5,30-34.
[21]张彦魁,张焰,吴蓓,周坚.静止无功补偿器建模及其在电力稳定研究中的用.上海交通大学学报,2007,Vol.41,No.3,488-491.
[22]赵学强,陈陈.晶闸管控制的串联电容补偿模型的综合研究.电力系统自动化,1999,No.6,31-35.
[23]何瑞文,蔡泽祥.结合谐波特征的可控串补动态相量法建模与特性分析.中国电机工程学报,2005,Vol.25,No.5,28-32.
[24]姚舜.新型静止无功发生器(ASVG)控制策略与装置的研究.湖南大学硕士学位论文,2007,20-45.
[25]吴昊,叶彬,曹一家.装有SVC和STATCOM的电力系统线性模型及其控制器其交互影响研究.江南大学学报,2004,134-139.
[26]张智.非线性PID系统控制的SVC的模型与电力系统数字仿真.天津大学硕士论文,2005,21-50.
[27]王立伟,房大中,钟德成.含静止无功补偿器的电力系统混合仿真新算法研究.电力系统及其自动化学报.2004,Vol.16,No.1,74-78.
[28]缪梅.基于SVC考虑谐波污染的无功优化.河海大学硕士论文,2007,23-49.
[29]金黎明.静止无功补偿系统动态特性与控制策略的仿真研究.华北电力大学硕士论文,2007,18-50.
[30]王皓.单相混合型谐波和无功补偿系统研究.北京交通大学硕士论文,2008,23-47.
[31]杨秀,金红核,郭晨吉,陈雨,陈鸿煜.应用分岔理论分析SVC对电力系统电压稳定性的影响.电力系统保护与控制,2009,Vol.37,No.7,9-11.