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基于Wiener模型的光伏并网逆变器模型辨识方法

, PP. 18-26

Keywords: 光伏,逆变器,Wiener模型,系统辨识,黑箱

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Abstract:

光伏并网发电系统的核心部件是并网逆变器,其建模、仿真、控制方法等方面的研究与设计都需要逆变器的数学模型,但在实际情况中往往难以获取,即使厂家提供也难以判断其准确性。该文将基于Wiener模型的非线性系统辨识技术引入到光伏并网逆变器的建模当中。新方法将单相光伏并网逆变器视为双输入双输出的非线性黑箱系统,仅基于并网逆变器输入?输出两侧的外部测量数据即可完成系统辨识建模。该方法在7.68kW光伏并网发电系统中进行实验,并与已有的Hammerstein-Wiener模型对比分析。结果表明,提出的单相光伏并网逆变器Wiener模型及其辨识建模方法,能更好地反映实际并网逆变器在不同天气条件下的动态行为,为并网逆变器的建模提供了一种新的有效途径。

References

[1]  刘东冉,陈树勇,马敏,等.光伏发电系统模型综述[J].电网技术,2011,35(8):47-52.Liu Dongran,Chen Shuyong,Ma Min,et al.A review on models for photovoltaic generation system[J].Power System Technology,2011,35(8):47-52(in Chinese).
[2]  黄汉奇,毛承雄,陆继明,等.光伏发电系统的小信号建模与分析[J].中国电机工程学报,2012,32(22):7-14.Huang Hanqi,Mao Chengxiong,Lu jiming,et al.Small- signal modeling and analysis of grid-connected photovoltaic generation systems[J].Proceedings of the CSEE,2012,32(22):7-14(in Chinese).
[3]  曾正,赵荣祥,杨欢.含逆变器的微电网动态相量模型[J].中国电机工程学报,2012,32(10):65-71.Zeng Zheng,Zhao Rongxiang,Yang Huan.Dynamic phasors model of micro-grid with grid-connected inverters and simulation[J].Proceedings of the CSEE,2012,32(10):65-71(in Chinese).
[4]  Middlebrook R D,Cuk S.A general unified approach to modelling switching-converter power stages[C]// Proceedings of the IEEE Power Electronics Specialists Conference.Cleveland,Ohio:IEEE,1976:73-86.
[5]  魏克银,刘德志,欧阳斌,等.三相四线制二极管整流桥的动态平均值模型[J].电工技术学报,2009,24(11):102-107.Wei Keyin,Liu Dezhi,Ouyang Bin,et al.Dynamic average-value model of 3-phase 4-wire diode-bridge rectifier[J].Transactions of China Electrotechnical Society,2009,24(11):102-107(in Chinese).
[6]  Tse C K,Di Bernardo M.Complex behavior in switching power converters[J].Proceeding of the IEEE,2002,90(5):768-781.
[7]  谢玲玲,龚仁喜,李畸勇.光伏发电最大功率点跟踪交错并联Boost变换器的动力学特性分析[J].中国电机工程学报,2013,33(6):38-45.Xie Lingling,Gong Renxi,Li Jiyong.Analysis of the dynamical characteristics of the interleaved boost converter in maximum power point tracking for photovoltaic power[J].Proceedings of the CSEE,2013,33(6):38-45(in Chinese).
[8]  Mezghanni D,Andoulsi R,Mami A,et al.Bond graph modelling of a photovoltaic system feeding an induction motor-pump[J].Simulation Modelling Practice and Theory,2007,15(10):1224-1238.
[9]  Smedley K,Cuk S.Switching flow-graph nonlinear modeling technique[J].IEEE Transactions on Power Electronics,1994,9(4):405-413.
[10]  Castaner L,Silvestre S.Modelling photovoltaic systems using PSpice[M].England:John Wiley & Sons Ltd,2002:154-175.
[11]  Onbilgin G,Ozgonenel O,Turkmenoglu V.Modeling of power electronics circuits using wavelet theory [J].Sampling Theory in Signal and Image Processing,2007,6(3):307-322.
[12]  熊小伏,陈康,郑伟,等.基于最小二乘法的光伏逆变器模型辨识[J].电力系统保护与控制,2012,40(22):54-63.Xiong Xiaofu,Chen Kang,Zheng Wei,et al.Photovoltaic inverter model identification based on least squares method[J].Power System Protection and Control,2012,40(22):54-63(in Chinese).
[13]  郑凌蔚,刘士荣,谢小高.基于改进小波神经网络的光伏发电系统非线性模型辨识[J].电网技术,2011,35(10):159-164.Zheng Lingwei,Liu Shirong,Xie Xiaogao.Modified wavelet neural network based nonlinear model identification for photovoltaic generation system [J].Power System Technology,2011,35(10):159-164(in Chinese).
[14]  Xiong Xiaofu,Zheng Wei,Chen Kang,et al.Identification approach in modeling a photovoltaic grid-tie inverter [J].International Review of Electrical Engineering,2012,7(3):4575-4584.
[15]  Patcharaprakiti N,Kirtikara K,Monyakul V,et al.Modeling of single phase inverter of photovoltaic system using Hammerstein-Wiener nonlinear system identification[J].Current Applied Physics,2010,10(3):532-536.
[16]  Zhang Qinghua,Benveniste A.Wavelet networks[J].IEEE Transactions on Neural Networks,1992,3(6):889-898.
[17]  Ljung L.System identification toolbox user's guide [M].Natick:The Math Work Inc,2011.
[18]  谢政,李建平,陈挚.非线性最优化理论与方法[M].北京:高等教育出版社,2010:192-194.Xie Zheng,Li Jianping,Chen Zhi.Nonlinear optimization theory and methods[M].Beijing:High Education Publisher,2010:192-194(in Chinese).
[19]  张光澄.非线性最优化计算方法[M].北京:高等教育出版社,2005:165-166.Zhang Guangdeng.Computational methods for nonlinear optimization[M].Beijing:High Education Publisher,2005:165-166(in Chinese).
[20]  Ljung L.System identification:theory for the user [M].London:Prentice Hall PTR,1999.

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