电压暂降及其检测算法仿真
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摘要
随着现代电力电子设备的广泛应用,电压暂降已日益成为电力部门和用户所关注的电能质量问题,这对供电系统的电压质量提出了更高的要求,几个周期的电压暂降或中断都将影响这些设备正常工作,并造成巨大的危害,电压暂降也成为了最受关注的电能质量问题。因此,对电压暂降特征量准确、实时、快速的检测能够带来巨大的经济效益,而且具有非常重要的实际意义。
本文简要介绍了电能质量的基本要求、特征、分类以及改善电能质量带来的巨大意义,并且重点讲述电能质量问题中的一个重要方面——电压暂降的概念、产生原因、危害、监测和预估及抑制方法等,并在此基础上对几种电压暂降常用检测算法进行了比较分析,总结了各种算法的优缺点及适用范围。
动态电压恢复器(Dynamic Voltage Restorer, DVR)是目前解决电压暂降问题的有效途径,本文主要介绍了DVR所常用的dq变换法和αβ变换法,以及在此基础上改进的加入求导环节的算法。对两种检测方法的仿真结果表明,改进的算法具有更小的延时和更理想的检测波形,能够更好地达到准确性和实时性的要求。
With the extensive application of modern power electronic devices, voltage sag has become important power quality problems power sectors and users increasingly concerned, which sets higher requests to the voltage quality of power supply system. Interruption or voltage sag of several cycles will impact normal work of these equipments and bring great damage. So it has become the most concerned power quality problem. Therefore, the exact, timely and fast detection of the characteristics of voltage sags can bring tremendous economic benefits and have a very important practical significance.
This paper described the basic requirements, characteristics and classification of power quality and enormous significance of improving the power quality. In addition, this paper focused on one important aspect of the power quality problems——voltage sag, including its concept, causes, harms, monitoring and prediction and suppression methods and so on. On this basis, through analysing and comparing several kinds of voltage sag detection algorithms, we summed up the advantages and disadvantages of various algorithms and their applicable scope.
At present, DVR (Dynamic Voltage Restorer) is an effective way to solve the problem of voltage sag. This paper introduced dq transformation andαβtransformation method used in the DVR commonly and an improved derivation detection method. Simulation results of two detection methods showed that the improved detection method had shorter delay and better waveform of detection and met the requirements of accuracy and timeliness better.
本文简要介绍了电能质量的基本要求、特征、分类以及改善电能质量带来的巨大意义,并且重点讲述电能质量问题中的一个重要方面——电压暂降的概念、产生原因、危害、监测和预估及抑制方法等,并在此基础上对几种电压暂降常用检测算法进行了比较分析,总结了各种算法的优缺点及适用范围。
动态电压恢复器(Dynamic Voltage Restorer, DVR)是目前解决电压暂降问题的有效途径,本文主要介绍了DVR所常用的dq变换法和αβ变换法,以及在此基础上改进的加入求导环节的算法。对两种检测方法的仿真结果表明,改进的算法具有更小的延时和更理想的检测波形,能够更好地达到准确性和实时性的要求。
With the extensive application of modern power electronic devices, voltage sag has become important power quality problems power sectors and users increasingly concerned, which sets higher requests to the voltage quality of power supply system. Interruption or voltage sag of several cycles will impact normal work of these equipments and bring great damage. So it has become the most concerned power quality problem. Therefore, the exact, timely and fast detection of the characteristics of voltage sags can bring tremendous economic benefits and have a very important practical significance.
This paper described the basic requirements, characteristics and classification of power quality and enormous significance of improving the power quality. In addition, this paper focused on one important aspect of the power quality problems——voltage sag, including its concept, causes, harms, monitoring and prediction and suppression methods and so on. On this basis, through analysing and comparing several kinds of voltage sag detection algorithms, we summed up the advantages and disadvantages of various algorithms and their applicable scope.
At present, DVR (Dynamic Voltage Restorer) is an effective way to solve the problem of voltage sag. This paper introduced dq transformation andαβtransformation method used in the DVR commonly and an improved derivation detection method. Simulation results of two detection methods showed that the improved detection method had shorter delay and better waveform of detection and met the requirements of accuracy and timeliness better.
引文
[1]肖湘宁,电能质量分析与控制,北京:中国电力出版社,2004
[2] Math H. J. Bollen,Understanding Power Quality Problem,Voltage Sags and Interruptions,IEEE PRESS,2000
[3] V. E. Wagner,A. A. Andreshak,J. P. Staniak,Power quality and factory automation,IEEE Transactions on Industry Applications,1990,26(8):620-626
[4] J. C. Das,Effects of Momentary Voltage dips on the operation of induction and synchronous motors,IEEE Transactions on Industry Applications,1990,26(4):711-718
[5] M. H. J. Bollen,Voltage Sags and Interruptions,New York:IEEE PRESS, 2002,1-55
[6]韩英铎,姜齐荣,乐健等,现代电力与FACTS&DFACTS技术,电力设备, 2003,4(1):5-9
[7]周晖,齐智平,动态电压恢复器检测方法和补偿策略综述,电网技术,2006,30(6):23-29
[8]徐丙垠,李天友,金文龙,电能质量问题及其管理,电力设备,2003,4(1),60～63
[9]胡铭,陈珩,电能质量及其分析方法综述,电网技术,2000,24(2):36-38
[10]林海雪,现代电能质量的基本问题,电网技术,2001,25(10):5-12
[11]肖湘宁,徐永海,电能质量问题剖析,电网技术,2001,25(3):66-69
[12]林海雪,关于加强电能质量管理的几个问题,电力设备,2003,4(1):1-4
[13]程忠浩,艾芊,电能质量[M],北京:清华大学出版社,2006
[14]张一工,肖湘宁,现代电力电子技术原理与应用,北京:科学出版社,1999
[15]陈志业,李鹏,电能质量研究——电压暂降及其治理,机械工业标准化与质量,2002,5:24-26
[16] Math H .J. Bollen,Irene .Y .H .Gu,Signal Processing of Power Quality Disturbances,New York,IEEE Press,2006
[17]刘海春,徐立智,罗运虎,一种新的电压暂降检测方法,电子测量技术,2008 ,31 (10):46-49
[18] Fitzer. C,Barnes. M,Green. P,Voltage sag detection technique for a dynamic voltage restorer.IEEE Trans on Industry Applications, 2004, 40(1):203-212
[19]杜雄,周雒维,许可夫,基于双dq变换的引起电压暂降的短路故障分类,电力系统自动化,2010,34(5):86-90
[20] Zhe CHEN,Senior Member,IEEE,and Mu WEI,A Voltage Quality Detection Method,DRPT,2008
[21]刘云潺,黄纯,欧立权等,基于dq变换的三相不平衡电压暂降检测方法,电力系统自动化,2007,19(3):72-76
[22] Edris Pouresmaeil,Mudathir Funsho Akorede and Mojgan Hojabri,A Hybrid Algorithm For Fast Detection and Classification of Voltage Disturbances in Electric Power Systems,Euro,Trans. Electr,Power (2010)
[23]徐育福,蔡金锭,李天友,电压暂降检测算法分析,中国高等学校电力系统及其自动化专业第二十四届学术年会论文集(下册),2008
[24]徐育福,蔡金锭,李天友,基于正弦函数模型的电压暂降检测算法,电力科学与技术学报,2008,23(2):36-40
[25] Liu Haichun,Xu Lizhi,Xie Shaojun,A New Detection Method of Voltage Sag Based on Period Phase Concept,IEEE,2009
[26]刘连光,贾文双,肖湘宁等,用小波变换和有效值算法实现电压凹陷的准确测量,电力系统自动化,2003,27(11):30-32
[27]马振国,李鹏,杨以涵等,基于小波多分辨率分析法的电能质量检测,华北电力大学学报,2003,30(3):13-14
[28] J. Arrillaga,N. R. Watson,Power System Quality Assessment,John Wiley&Sons,2000
[29] Roger. C,Dugan,et al,Electric Power Quality,McGraw-Hill,1996
[30]金广厚,李庚银,周明,国内外电能质量控制水平及管理策略,电力自动化设备,2005,25(1):1-6
[31]熊玲玲,刘会金,傅志伟,基于小波包变换的电压骤降信号分析,继电器,2004,32(11):8-12
[32] Alves. M. F,Ribeiro. T. N,Voltage sag:an overview of IEC and IEEE standards and application criteria,Transmission and Distribution Conference,IEEE,1999,Vol,2:585-589
[33]韩英铎,王仲鸿,陈淮金,电力系统最优分散协调控制,北京:清华大学出版社,1997
[34] Melhorn. C. J,Davis. T. D,Beam. G. E,Voltage sags:their impact on the utility and industrial customers,IEEE Transactions on Industry Applications,1998,34(3):549-558
[35]张伯明,陈寿孙,高等电力网络分析,北京:清华大学出版社,1996
[36] Sawir. B,Ghani. M. R,et al,Voltage sag:Malaysian’s experience,Beijing,2000,Vol,2:1421-1425
[37]谭永元,电压骤降的检测方法,应用能源技术,2004,87(3):29-31
[38]杨洪耕,肖先勇,刘俊勇,电能质量问题的研究和技术进展(三)——电力系统的电压凹陷,电力自动化设备,2003,23(12):1-4
[39] N. S. Tunaboylu,E. R. Collins,JR. PR. Chaney,Voltage disturbance evaluation using the missing voltage technique,Proceedings of 8th International Conference on Harmonics and Quality of Power,Athens Greece,1998:577-582
[40]王丽,刘会金,王陈,瞬时无功功率理论的研究综述,高电压技术,2006,32(2):98-103
[41]肖湘宁,徐永海,刘昊,电压凹陷特征量检测算法研究,电力自动化设备,2002,22(1):19-22
[42] H Kim,S-J Lee,S-K Sul,A calculation for the compensation voltages in dynamic voltage restorers by use of PQR power theory,In:19th Annual IEEE Applied power electronics conference and exposition,California,USA,2004,573-579
[43]陈艳慧,刘开培,郭书芳,电力系统谐波检测的p-q-r法及其局限性,电网技术,2004,28(l3):88-91
[44]李江,李国庆,王振浩,p-q-r理论在单相动态电压调节器中的应用,电网技术,2005,29(17):72-75
[45]姜齐荣,赵东元,陈建业,有源电力滤波器,北京:科学出版社,2005,141-154
[46]杨潮,张秀娟,唐志等,三相串联电能质量控制器及其补偿电压算法,清华大学学报,2003,43(3):289-292
[47]王群,姚为正,王兆安,低通滤波器对谐波检测电路的影响,西安交通大学学报,1999,33(4):5-8
[48]求是科技(编著),MATLAB7.0从入门到精通,北京:人民邮电出版社,2006
[49]杨淑英,杜彬,基于dq变换的动态电压恢复器综合求导检测算法,电力系统自动化,2008 ,32(2):40-44
[50]侯世英,刘早晨,嵇丽明等,单相电压骤降特征量的求导检测算法,电网技术,2009,33(14):52-56
[51]冯小明,杨仁刚,动态电压恢复器的形态学——dq变换综合检测算法,中国电机工程学报,2004,24(11):193-198
[52]付青,罗安,刘宇,一种瞬时功率理论谐波检测的低通滤波器设计新方法,湖南科技大学学报(自然科学版),2005,20(1):62-66
[53]史伟伟,蒋全,胡敏强等,低通滤波器在串联型电力有源滤波器中的应用,电网技术,2002,26(5):44-48
[2] Math H. J. Bollen,Understanding Power Quality Problem,Voltage Sags and Interruptions,IEEE PRESS,2000
[3] V. E. Wagner,A. A. Andreshak,J. P. Staniak,Power quality and factory automation,IEEE Transactions on Industry Applications,1990,26(8):620-626
[4] J. C. Das,Effects of Momentary Voltage dips on the operation of induction and synchronous motors,IEEE Transactions on Industry Applications,1990,26(4):711-718
[5] M. H. J. Bollen,Voltage Sags and Interruptions,New York:IEEE PRESS, 2002,1-55
[6]韩英铎,姜齐荣,乐健等,现代电力与FACTS&DFACTS技术,电力设备, 2003,4(1):5-9
[7]周晖,齐智平,动态电压恢复器检测方法和补偿策略综述,电网技术,2006,30(6):23-29
[8]徐丙垠,李天友,金文龙,电能质量问题及其管理,电力设备,2003,4(1),60～63
[9]胡铭,陈珩,电能质量及其分析方法综述,电网技术,2000,24(2):36-38
[10]林海雪,现代电能质量的基本问题,电网技术,2001,25(10):5-12
[11]肖湘宁,徐永海,电能质量问题剖析,电网技术,2001,25(3):66-69
[12]林海雪,关于加强电能质量管理的几个问题,电力设备,2003,4(1):1-4
[13]程忠浩,艾芊,电能质量[M],北京:清华大学出版社,2006
[14]张一工,肖湘宁,现代电力电子技术原理与应用,北京:科学出版社,1999
[15]陈志业,李鹏,电能质量研究——电压暂降及其治理,机械工业标准化与质量,2002,5:24-26
[16] Math H .J. Bollen,Irene .Y .H .Gu,Signal Processing of Power Quality Disturbances,New York,IEEE Press,2006
[17]刘海春,徐立智,罗运虎,一种新的电压暂降检测方法,电子测量技术,2008 ,31 (10):46-49
[18] Fitzer. C,Barnes. M,Green. P,Voltage sag detection technique for a dynamic voltage restorer.IEEE Trans on Industry Applications, 2004, 40(1):203-212
[19]杜雄,周雒维,许可夫,基于双dq变换的引起电压暂降的短路故障分类,电力系统自动化,2010,34(5):86-90
[20] Zhe CHEN,Senior Member,IEEE,and Mu WEI,A Voltage Quality Detection Method,DRPT,2008
[21]刘云潺,黄纯,欧立权等,基于dq变换的三相不平衡电压暂降检测方法,电力系统自动化,2007,19(3):72-76
[22] Edris Pouresmaeil,Mudathir Funsho Akorede and Mojgan Hojabri,A Hybrid Algorithm For Fast Detection and Classification of Voltage Disturbances in Electric Power Systems,Euro,Trans. Electr,Power (2010)
[23]徐育福,蔡金锭,李天友,电压暂降检测算法分析,中国高等学校电力系统及其自动化专业第二十四届学术年会论文集(下册),2008
[24]徐育福,蔡金锭,李天友,基于正弦函数模型的电压暂降检测算法,电力科学与技术学报,2008,23(2):36-40
[25] Liu Haichun,Xu Lizhi,Xie Shaojun,A New Detection Method of Voltage Sag Based on Period Phase Concept,IEEE,2009
[26]刘连光,贾文双,肖湘宁等,用小波变换和有效值算法实现电压凹陷的准确测量,电力系统自动化,2003,27(11):30-32
[27]马振国,李鹏,杨以涵等,基于小波多分辨率分析法的电能质量检测,华北电力大学学报,2003,30(3):13-14
[28] J. Arrillaga,N. R. Watson,Power System Quality Assessment,John Wiley&Sons,2000
[29] Roger. C,Dugan,et al,Electric Power Quality,McGraw-Hill,1996
[30]金广厚,李庚银,周明,国内外电能质量控制水平及管理策略,电力自动化设备,2005,25(1):1-6
[31]熊玲玲,刘会金,傅志伟,基于小波包变换的电压骤降信号分析,继电器,2004,32(11):8-12
[32] Alves. M. F,Ribeiro. T. N,Voltage sag:an overview of IEC and IEEE standards and application criteria,Transmission and Distribution Conference,IEEE,1999,Vol,2:585-589
[33]韩英铎,王仲鸿,陈淮金,电力系统最优分散协调控制,北京:清华大学出版社,1997
[34] Melhorn. C. J,Davis. T. D,Beam. G. E,Voltage sags:their impact on the utility and industrial customers,IEEE Transactions on Industry Applications,1998,34(3):549-558
[35]张伯明,陈寿孙,高等电力网络分析,北京:清华大学出版社,1996
[36] Sawir. B,Ghani. M. R,et al,Voltage sag:Malaysian’s experience,Beijing,2000,Vol,2:1421-1425
[37]谭永元,电压骤降的检测方法,应用能源技术,2004,87(3):29-31
[38]杨洪耕,肖先勇,刘俊勇,电能质量问题的研究和技术进展(三)——电力系统的电压凹陷,电力自动化设备,2003,23(12):1-4
[39] N. S. Tunaboylu,E. R. Collins,JR. PR. Chaney,Voltage disturbance evaluation using the missing voltage technique,Proceedings of 8th International Conference on Harmonics and Quality of Power,Athens Greece,1998:577-582
[40]王丽,刘会金,王陈,瞬时无功功率理论的研究综述,高电压技术,2006,32(2):98-103
[41]肖湘宁,徐永海,刘昊,电压凹陷特征量检测算法研究,电力自动化设备,2002,22(1):19-22
[42] H Kim,S-J Lee,S-K Sul,A calculation for the compensation voltages in dynamic voltage restorers by use of PQR power theory,In:19th Annual IEEE Applied power electronics conference and exposition,California,USA,2004,573-579
[43]陈艳慧,刘开培,郭书芳,电力系统谐波检测的p-q-r法及其局限性,电网技术,2004,28(l3):88-91
[44]李江,李国庆,王振浩,p-q-r理论在单相动态电压调节器中的应用,电网技术,2005,29(17):72-75
[45]姜齐荣,赵东元,陈建业,有源电力滤波器,北京:科学出版社,2005,141-154
[46]杨潮,张秀娟,唐志等,三相串联电能质量控制器及其补偿电压算法,清华大学学报,2003,43(3):289-292
[47]王群,姚为正,王兆安,低通滤波器对谐波检测电路的影响,西安交通大学学报,1999,33(4):5-8
[48]求是科技(编著),MATLAB7.0从入门到精通,北京:人民邮电出版社,2006
[49]杨淑英,杜彬,基于dq变换的动态电压恢复器综合求导检测算法,电力系统自动化,2008 ,32(2):40-44
[50]侯世英,刘早晨,嵇丽明等,单相电压骤降特征量的求导检测算法,电网技术,2009,33(14):52-56
[51]冯小明,杨仁刚,动态电压恢复器的形态学——dq变换综合检测算法,中国电机工程学报,2004,24(11):193-198
[52]付青,罗安,刘宇,一种瞬时功率理论谐波检测的低通滤波器设计新方法,湖南科技大学学报(自然科学版),2005,20(1):62-66
[53]史伟伟,蒋全,胡敏强等,低通滤波器在串联型电力有源滤波器中的应用,电网技术,2002,26(5):44-48