不同迭代算法求解光伏模块参数的收敛速度

doi:10.19781/j.issn.16739140.2020.03.007

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不同迭代算法求解光伏模块参数的收敛速度
DOI:
                        10.19781/j.issn.16739140.2020.03.007
                    
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作者:
                        师 楠师 楠
黑龙江科技大学工程训练与基础实验中心，黑龙江 哈尔滨 150022
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朱显辉朱显辉
黑龙江科技大学电气与控制工程学院，黑龙江 哈尔滨 150022
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李一丹李一丹
黑龙江科技大学电气与控制工程学院，黑龙江 哈尔滨 150022
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杨 莹杨 莹
黑龙江科技大学电气与控制工程学院，黑龙江 哈尔滨 150022
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苑鹏涛苑鹏涛
黑龙江科技大学工程训练与基础实验中心，黑龙江 哈尔滨 150022
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作者简介:
通讯作者:师楠(1982)，女，讲师，主要从事可再生能源与电网调度研究;Email：snhit@sina.cn
中图分类号:TM914.4
基金项目:国家自然科学基金（51677057）；黑龙江省普通本科高等学校青年创新人才培养计划(UNPYSCT2017144)

Study on theconvergence rate of different iterative algorithms in solving PV model parameters

Author:

SHI Nan
SHI Nan
The Engineering Training and Basic Experimental Center, Heilongjiang University of Science and Technology, Harbin 150022 ,China
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ZHU Xianhui
ZHU Xianhui
School of Electrical and Control Engineering, Heilongjiang University of Science and Technology, Harbin 150022 , China
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LI Yidan
LI Yidan
School of Electrical and Control Engineering, Heilongjiang University of Science and Technology, Harbin 150022 , China
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YANG ying
YANG ying
School of Electrical and Control Engineering, Heilongjiang University of Science and Technology, Harbin 150022 , China
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YUAN Pengtao
YUAN Pengtao
The Engineering Training and Basic Experimental Center, Heilongjiang University of Science and Technology, Harbin 150022 ,China
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摘要:

迭代算法在确定光伏模块参数中的应用非常广泛。为研究不同迭代算法求解光伏模块参数时的收敛速度，在简要概括牛顿拉夫逊和高斯赛德尔迭代算法特点的基础上，结合光伏模块输出特性的非线性超越方程，详细推导了牛顿拉夫逊和高斯赛德尔迭代求解光伏模块输出参数的等式。利用这些等式分别对3种不同结构的光伏模块求解参数,并对结果进行分析和验证。其结果表明，在同等精度的前提下，牛顿拉夫逊迭代法对初值的选取不敏感且收敛速度较快，更加适用于光伏模块参数计算。

关键词:光伏模块;迭代算法;牛顿拉夫逊;高斯赛德尔;收敛速度;初值敏感性

Abstract:

The iterative algorithm is widely used in determining the parameters of photovoltaic models. In order to study the convergence speed of using the different iterative to solve the PV parameters, on the basis of brief introduction on the characteristics of NewtonRaphson and GaussSeidel iterative algorithms, combining with nonlinear transcendental equation for the output characteristics of photovoltaic models, the equations of the output parameters for the photovoltaic models are deduced in detail with NewtonRaphson and GaussSeidel iterative method. We use the equations to derive the PV parameters of three different photovoltaic modules and analyze and test these results. The results show that NewtonRaphson iterative method is insensitive to the selection of initial values and has faster convergence rate under the same precision. Such method is more suitable for the calculation of photovoltaic model parameters.

Key words:photovoltaic models; iterative algorithm; NewtonRaphson; GaussSeidel; convergence speed; initial value sensitivity

参考文献

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引用本文

师楠,朱显辉,李一丹,等.不同迭代算法求解光伏模块参数的收敛速度[J].电力科学与技术学报,2020,35(3):55-60.
SHI Nan, ZHU Xianhui, LI Yidan, et al. Study on theconvergence rate of different iterative algorithms in solving PV model parameters[J]. Journal of Electric Power Science and Technology,2020,35(3):55-60.

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