基于模型预测法的最大功率跟踪研究
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摘要
本文针对扰动观察法等传统最大功率跟踪方法不能兼顾跟踪速度与跟踪精度的问题,提出一种基于模型预测的MPPT控制方法。首先,建立太阳能电池的数学模型并验证了其输出特性;其次,基于模型预测控制原理对太阳能电池最大功率点的跟踪过程进行理论推导;最后完成MATLAB/Simulink仿真,并与传统的扰动观察法进行对比分析,证实了所提控制策略的可行性、有效性。
A MPPT control method was proposed based on model prediction control(MPC)due to the problem that the traditional maximum power tracking method cannot trade off the tracking speed and tracking accuracy such as perturb &observation method.Firstly,the mathematical model of the solar cell was established and its output characteristics was verified.Secondly,the tracking process of the maximum power point of the solar cell was theoretically derived based on the model predictive control principle.Finally,the MATLAB/Simulink simulation was completed and the compared results were obtained for MPC with the traditional disturbance observation method.It was confirmed that the result from the MPC was super to P&O in these aspects such as feasibility and effectiveness.
A MPPT control method was proposed based on model prediction control(MPC)due to the problem that the traditional maximum power tracking method cannot trade off the tracking speed and tracking accuracy such as perturb &observation method.Firstly,the mathematical model of the solar cell was established and its output characteristics was verified.Secondly,the tracking process of the maximum power point of the solar cell was theoretically derived based on the model predictive control principle.Finally,the MATLAB/Simulink simulation was completed and the compared results were obtained for MPC with the traditional disturbance observation method.It was confirmed that the result from the MPC was super to P&O in these aspects such as feasibility and effectiveness.
引文
[1]AHMED J,SALAM Z.A modified P&O maximum power point tracking method with reduced steady state oscillation and improved tracking efficiency[J].IEEE Transactions on Sustainable Energy,2016,7(4):1506-1511.
[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.
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[4]韦世宽,雷加,谈恩民,等.光伏系统最大功率点跟踪技术研究[J].电子测量与仪器学报,2011,25(06):490-494.
[5]陈剑,赵争鸣,袁立强,等.光伏系统最大功率点跟踪技术的比较[J].清华大学学报(自然科学版),2010,50(05):700-704.
[6]张幸,余松森,尹璐琳,等.基于二分法的变步长扰动观测MPPT算法[J].电源技术,2018,42(04):536-539.
[7]周东宝,陈渊睿.基于改进型变步长电导增量法的最大功率点跟踪策略[J].电网技术,2015,39(06):1491-1498.
[8]刘春娟,孙赟赟,穆洲,等.基于三段式变步长电导增量法的最大功率点跟踪策略[J].激光与光电子学进展,2018,55(07):420-426.
[9]董慧颖,白鹤.基于模糊控制的太阳电池最大功率点跟踪算法研究[J].太阳能学报,2014,35(08):1416-1421.
[10]高志强,王建赜,纪延超,等.一种快速的光伏最大功率点跟踪方法[J].电力系统保护与控制,2012,40(08):105-109.
[11]梅真,赵熙临,刘斐.基于CVT和INC的模型预测控制光伏MPPT算法[J].湖北工业大学学报,2015,30(01):8-11.
[12]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,2018.
[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.
[3]DEBRITO M A G,GALOTTO L,SAMPAIO L P,et al.E-valuation of the main MPPT techniques for photovoltaic applications[J].IEEE Transactions on Industrial Electronics,2013,60(3):1156-1167.
[4]韦世宽,雷加,谈恩民,等.光伏系统最大功率点跟踪技术研究[J].电子测量与仪器学报,2011,25(06):490-494.
[5]陈剑,赵争鸣,袁立强,等.光伏系统最大功率点跟踪技术的比较[J].清华大学学报(自然科学版),2010,50(05):700-704.
[6]张幸,余松森,尹璐琳,等.基于二分法的变步长扰动观测MPPT算法[J].电源技术,2018,42(04):536-539.
[7]周东宝,陈渊睿.基于改进型变步长电导增量法的最大功率点跟踪策略[J].电网技术,2015,39(06):1491-1498.
[8]刘春娟,孙赟赟,穆洲,等.基于三段式变步长电导增量法的最大功率点跟踪策略[J].激光与光电子学进展,2018,55(07):420-426.
[9]董慧颖,白鹤.基于模糊控制的太阳电池最大功率点跟踪算法研究[J].太阳能学报,2014,35(08):1416-1421.
[10]高志强,王建赜,纪延超,等.一种快速的光伏最大功率点跟踪方法[J].电力系统保护与控制,2012,40(08):105-109.
[11]梅真,赵熙临,刘斐.基于CVT和INC的模型预测控制光伏MPPT算法[J].湖北工业大学学报,2015,30(01):8-11.
[12]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,2018.