MATLAB光伏电池模型建模与仿真问题求助

需积分: 10 131 浏览量更新于2024-09-07 收藏 638KB PDF 举报

"光伏电池组件模型的建立与MATLAB/Simulink仿真遇到问题，作者在尝试根据文献建模时遇到了代数环路求解错误，提示可能在解决方案中存在奇点，建议调整步长。提供了相关文献和模型文件以寻求帮助。" 这篇文章主要讨论的是基于MATLAB/Simulink的光伏系统建模与仿真方法。作者M.Abdulkadir, A.S.Samosir和A.H.M.Yatim来自马来西亚科技大学能源转换部门，他们在ARPN Journal of Engineering and Applied Sciences期刊的2012年5月刊上发表了该研究。文章中，他们提出了一个用户友好的光伏模型，利用Simulink的Simpower库块来设计。光伏模型考虑了辐射量和温度的影响，通过这个模型模拟了光伏电池的输出电流和功率特性。详细介绍了电路模型的建模过程，并给出了数值值。为了验证模拟器的准确性，他们将模型应用于36WP（瓦特）光伏模块。当作者尝试根据文献内容构建模型时，遇到了Simulink中的代数环路求解问题。这是一个常见的仿真问题，通常发生在系统中存在因果循环，导致无法确定变量的独立解。MATLAB/Simulink在遇到这种问题时会停止模拟并给出警告，建议减少步长或检查模型结构以消除环路。解决这类问题的方法包括： 1. **审查模型结构**：确保模型没有错误的因果关系，即没有反馈环路。 2. **使用代数环路处理工具**：Simulink提供了一些工具，如“AlgebraicLoop”工具，可以帮助识别和解决代数环路。 3. **调整仿真步长**：减小步长可能有助于解决近似求解中的奇异问题，但过小的步长可能会增加仿真时间。 4. **使用“Simplify”功能**：尝试简化模型，去除不必要的环节。 5. **重新定义或分离变量**：如果可能，尝试重新组织模型，使某些变量变为动态而不是静态。文献和模型的提供，意在让社区成员或其他专家帮助分析和解决问题。对于这类问题，通常需要对MATLAB/Simulink和光伏系统建模有深入理解的专业人士进行审查和调试。光伏系统的建模和仿真是一个复杂的过程，涉及到物理现象、数学建模和计算工具的综合应用。在实际操作中，理解和解决这类技术问题对于优化模型性能和提高仿真精度至关重要。

VOL. 7, NO. 5, MAY 2012 ISSN 1819-6608

ARPN Journal of Engineering and Applied Sciences

www.arpnjournals.com

616

MODELING AND SIMULATION BASED APPROACH OF

PHOTOVOLTAIC SYSTEM IN SIMULINK MODEL

M. Abdulkadir, A. S. Samosir and A. H. M. Yatim

Department of Energy Conversion, Faculty of Electrical Engineering, University Teknologi Malaysia, Skudai,

Johor Bahru, Malaysia

E-Mail: musa.abdulkadir@fkegraduate.utm.my

ABSTRACT

This paper presents the modeling and simulation of photovoltaic model using MATLAB/Simulink software

package. The proposed model is design with a user-friendly icon using Simpower of Simulink block libraries. Taking the

effect of irradiance and temperature into consideration, the output current and power characteristic of PV model are

simulated using the proposed model. Detailed modeling procedure for the circuit model with numerical values is presented.

The simulator is verified by applying the model to 36 W PV modules. The proposed model was found to be better and

accurate for any irradiance and temperature variations. The proposed model can be very useful for PV Engineers and

expert who require a simple, fast and accurate PV simulator to design their systems.

Keywords: modeling, photovoltaic module, Simulink model.

INTRODUTION

Photovoltaic energy is a source of interesting

energy. It is renewable, inexhaustible and nonpolluting,

and that it is more and more intensively used as energy

sources in various applications. Photovoltaic systems have

been the worldwide fast growing energy source because of

the increase in energy demand and the fact that fossil

energy sources are finite, and that they are expensive.

Furthermore, the impacts that the energy technology has

on the environment which make the photovoltaic become

a mature technology in used (Jung H. J. and Ahmed S.,

2010). The increase in a number of Photovoltaic system

installed all over the world brought the need for proper

supervision and control algorithms as well as modeling

and simulation tool for researcher and practitioners

involved in its application is very necessary.

The modeling and simulation of photovoltaic

(PV) have made a great transition and form an important

part of power generation in this present age. The modeling

of PV module generally involves the approximation of the

non-linear I-V curve. Many researchers used circuit based

approach to characterize the PV module of which the

simplest model is the current source in parallel to a diode

(Da Silva R. M. et al., 2010; Altas H. I. et al., 2007; Nena

S. et al., 2010 and Gradella Marcelo et al., 2007). In a PV

system, peak power point changes continuously due to

environmental variations, sometime substantial drop in

power especially during partial shading conditions.

Several computational methods are proposed by several

researchers (Ishaque K, Zainal Salam, 2011, Dell R. V. et

al., 2010, Da Silva R. M. et al., 2010; Jung J. H. and

Ahmed S., 2010 and Walker G., 2001; Dell Aquila R. V.,

2010; Ebrahim M., 2007). Simple circuit-based

photovoltaic model has proposed in (Da Silva R. M. et al.,

2010; Jung J. H. and Ahmed S., 2010; Walker G., 2001;

Yushaizad Yusof, et al., 2004 and Jung Jee-Hoon, Ahmed

S., 2010). Indirect methods have also been proposed by

some researchers where the, I-V curve is adjusted through

artificial intelligence techniques (Veerachary M., 2005;

Chowdhury S., Chowdhury S.P., 2008; Zegaoui A., 2011;

Ramaprabha R. and Mathur B. L., 2011). Although some

of these methods are impractical, complicated and require

high computational effort, and some of these modeling

was limited to simulation of photovoltaic module

characteristics. Thus, because of the numerous challenges,

an accurate and comprehensive design of PV system using

the detailed circuit model in MATLAB Simulink model

was proposed.

In section II, the circuit model of the PV module

system is shown. Section III, the mathematical equations

of the PV module (cells) and the Simulink model for these

equations of the PV module is presented. In section IV, the

numerical results for different temperature and irradiance

conditions is presented. Section V presents the discussion

and conclusion of the modeling process. Detailed of the

circuit model of the PV cell is discussed in the next

section.

THE CIRCUIT MODELS OF THE PV MODULES

Photovoltaic cell models have long been a source

for the description of photovoltaic cell behaviors for

researchers and professionals. The most common model

used to predict energy production in photovoltaic cell

modeling is the single diode circuit model (Ishaque K,

Zainal Salam, 2011; Dell R. V. et al., 2010; Da Silva R.

M. et al., 2010; Jung J. H. and Ahmed S., 2010 and

Walker G., 2001) shown in Figure-1.

The ideal photovoltaic module consists of a

single diode connected in parallel with a light generated

current source (

) as shown in Figure-1. The equation

for the output current is given by:

Where

下载后可阅读完整内容，剩余7页未读，立即下载

普通网友

粉丝: 484
资源:
1万+

MATLAB光伏电池模型建模与仿真问题求助

按照文献做的光伏电池组件模型调试出错附老外文献-mypv.mdl

Modeling-and-Simulation-in-Python-pdf.pdf.pdf

AGENT-BASED MODELING AND SIMULATION

木材多尺度本构模型的相关文献

构建木材非线性和多尺度的本构模型的相关文献

上述案例有相关的文献吗？发给我，我好分析下

systemC-TLM

与Prediction and risk assessment of extreme weather events based on gumbel copula function类似的文献

要写基于pytorch的ocr文字识别的开题报告，参考文献有哪些

CloudSim可以参考哪些文献

最新资源