全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
电网技术  2015 

光伏逆变器控制参数的分步辨识方法

DOI: 10.13335/j.1000-3673.pst.2015.03.002, PP. 594-600

Keywords: 光伏发电,逆变器,控制器,参数辨识,虚拟量测激励

Full-Text   Cite this paper   Add to My Lib

Abstract:

由于光伏逆变控制器的内外环之间是级联关系,在以往一次侧制造短路以产生电压跌落,或者在控制器参考值上制造阶跃扰动的激励下,参数存在不可唯一辨识的问题。为此,提出了一种在二次侧量测信号上施加扰动的方法,称为虚拟量测激励。其突出优点是施加某个量测信号激励时可以屏蔽其他量测信号的变化,从而可以实现内外环控制器动作的解耦,进而解决参数的可辨识性问题。在此基础上,提出了一种光伏逆变器控制参数的分步辨识方法。该方法首先使用电容电压量测信号的方波和正弦激励,先后辨识得到电压外环的积分和比例系数;然后在屏蔽并网点电压和电容电压量测信号变化的条件下,利用并网点电流q轴量测信号的正弦激励确定电流内环3个控制参数的比例;再通过测量或辨识方法得到电感参数的数值后,即可获得电流内环的全部控制参数值。如果电感参数可测量,则整套方法都不需要使用优化算法。仿真算例表明了该方法的可行性。

References

[1]  刘伟,彭冬,卜广全,等.光伏发电接入智能配电网后的系统问题综述[J].电网技术,2009,33(19):1-6.Liu Wei,Peng Dong,Bu Guangquan,et al.A survey on system problems in smart distribution network with grid-connected photovoltaic generation[J].Power System Technology,2009,33(19):1-6(in Chinese).
[2]  丁明,王伟胜,王秀丽,等.大规模光伏发电对电力系统影响综述[J].中国电机工程学报,2014,34(1):1-14.Ding Ming,Wang Weisheng,Wang Xiuli,et al.A review on the effect of large-scale PV generation on power systems[J].Proceedings of the CSEE,2014,34(1):1-14(in Chinese).
[3]  田芳,黄彦浩,史东宇,等.电力系统仿真分析技术的发展趋势[J].中国电机工程学报,2014,34(13):2151-2163.Tian Fang,Huang Yanhao,Shi Dongyu,et al.Developing trend of power system simulation and analysis technology[J].Proceedings of the CSEE,2014,34(13):2151-2163(in Chinese).
[4]  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).
[5]  秦岭,谢少军,杨晨,等.太阳能电池的动态模型和动态特性[J].中国电机工程学报,2013,33(7):19-26.Qin Ling,XieShaojun,Yang Chen,et al.Dynamic model and dynamic characteristics of solar cells[J].Proceedings of the CSEE,2013,33(7):19-26(in Chinese).
[6]  司新跃,陈青,高湛军.基于分段线性的光伏阵列等效模型[J].电网技术,2014,38(4):947-951.Si Xinyue,Chen Qing,Gao Zhanjun.A piecewise linearization based equivalent model of photovoltaic array[J].Power System Technology,2014,38(4):947-951(in Chinese).
[7]  Kulaksiz A A.ANFIS-based parameter estimation of one-diode equivalent circuit model of PV modules[C]//12th IEEE International Symposium on Computational Intelligence and Informatics.Budapest,Hungary:IEEE,2011:415-420.
[8]  Chatterjee A,Keyhani A,Kapoor D.Identification of photovoltaic source models[J].IEEE Transactions on Energy Conversion,2011,26(3):883-889.
[9]  Attivissimo F,Di-Nisio A,Savino M,et al.Uncertainty analysis in photovoltaic cell parameter estimation[J].IEEE Transactions on Instrumentation and Measurement,2012,61(5):1334-1342.
[10]  卫东,楼洪,肖昌允.太阳能光伏输出特性最大功率点计算与模型参数求解[J].中国电机工程学报,2013,33(10):121-127.Wei Dong,Lou Hong,Xiao Changyun.Calculation of maximum power point and solution of model parameters for solar photovoltaic output characteristics[J].Proceedings of the CSEE,2013,33(10):121-127(in Chinese).
[11]  郑伟,熊小伏.光伏并网逆变器NARX模型的系统辨识[J].电网技术,2013,37(9):2440-2445.Zheng Wei,Xiong Xiaofu.System identification for NARX model of photovoltaic grid-connected inverter[J].Power System Technology,2013,37(9):2440-2445(in Chinese).
[12]  郑伟,熊小伏.基于Wiener模型的光伏并网逆变器模型辨识方法[J].中国电机工程学报,2013,33(36):18-26.Zheng Wei,Xiong Xiaofu.A model identification method for photovoltaic grid-connected inverters based on the Wiener model[J].Proceedings of the CSEE,2013,33(36):18-26(in Chinese).
[13]  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):52-57,63.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):52-57,63(in Chinese).
[14]  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).
[15]  付兵彬,贾春蓉,杨昌海,等.光伏并网发电系统仿真模型的参数辨识[J].电力系统及其自动化学报,2013,25(5):116-120.Fu Bingbin,Jia Chunrong,Yang Changhai,et al.Parameter identification of distributed photovoltaic power generation system[J].Proceedings of the CSU-EPSA,2013,25(5):116-120(in Chinese).
[16]  沈欣炜,郑竞宏,朱守真,等.光伏并网逆变器控制参数的dq轴解耦辨识策略[J].电力系统自动化,2014,38(4):1-6.Shen Xinwei,Zheng Jinghong,Zhu Shouzhen,et al.A dq axis decoupling parameter identification strategy for grid-connected inverter controller of photovoltaic generation system[J].Automation of Electric Power Systems,2014,38(4):1-6(in Chinese).
[17]  张兴,曹仁贤.太阳能光伏并网发电及其逆变控制[M].北京:机械工业出版社,2011:71-73.
[18]  王皓怀,汤涌,侯俊贤,等.风光储联合发电系统的组合建模与等值[J].中国电机工程学报,2011,31(4):1-9.Wang Haohuai,Tang Yong,Hou Junxian,et al.Composition modeling and equivalence of an integrated power generation system of wind,photovoltaic and energy storage unit[J].Proceedings of the CSEE,2011,31(4):1-9(in Chinese).
[19]  Hussain M N M,Omar A M,Samat A A A.Identification of multiple input-single output(MISO)model for MPPT of photovoltaic system[C]//IEEE International Conference on Control System,Computing and Engineering.Penang,Malaysia:IEEE,2011:49-53.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133