scholarly journals Modelling of PV module and its application for partial shading analysis – part I: model and parameter estimation of PV module

2017 ◽  
Vol 2017 (13) ◽  
pp. 1295-1298 ◽  
Author(s):  
Zhang Mao ◽  
Zhong Sunan ◽  
Mao Peng ◽  
Sun Yanlong ◽  
Zhang Weiping
Keyword(s):  
Parameter Estimation ◽  
Partial Shading ◽  
Pv Module

Investigation on the accurate parameter estimation of photovoltaic (PV) module based on simplified two-diode model

2016 ◽  
Vol 13 (3) ◽  
pp. 225-233
Author(s):  
B. Chitti Babu ◽  
Suresh Gurjar ◽  
Tomas Cermak
Keyword(s):  
Parameter Estimation ◽  
Design Methodology ◽  
Standard Test ◽  
Computational Time ◽  
Unknown Parameters ◽  
Partial Shading ◽  
Content Type ◽  
Pv Module ◽  
Test Conditions ◽  
Proposed Model

Purpose This paper aims to present a detailed investigation on the parameter estimation of a photovoltaic (PV) module by using a simplified two-diode model. Design/methodology/approach The studied PV module in this paper resembles an ideal two-diode model, and to reduce the computational time, the proposed model has a photocurrent source and two ideal-diodes and neglects the series and shunt resistances. Hence, for calculating the unknown parameters, only four parameters are required from the datasheet. Moreover, the studied model is simple and uses an easy modeling approach which is free from complexities. Findings The performance of the PV module is analyzed under non-standard test conditions by considering partial shading at different shaded levels, and it is found that the model has less computational time and gives accurate results. Originality/value The usefulness of this PV model is demonstrated with the help of several illustrative figures, and the performance of the PV module is evaluated.

scholarly journals A Simple Mismatch Mitigating Partial Power Processing Converter for Solar PV Modules

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2308
Author(s):  
Kamran Ali Khan Niazi ◽  
Yongheng Yang ◽  
Tamas Kerekes ◽  
Dezso Sera
Keyword(s):  
Experimental Tests ◽  
Energy Yield ◽  
Power Electronic ◽  
Solar Pv ◽  
Partial Shading ◽  
Loss Analysis ◽  
Pv Systems ◽  
Pv Module ◽  
Pv Modules ◽  
In Series

Partial shading affects the energy harvested from photovoltaic (PV) modules, leading to a mismatch in PV systems and causing energy losses. For this purpose, differential power processing (DPP) converters are the emerging power electronic-based topologies used to address the mismatch issues. Normally, PV modules are connected in series and DPP converters are used to extract the power from these PV modules by only processing the fraction of power called mismatched power. In this work, a switched-capacitor-inductor (SCL)-based DPP converter is presented, which mitigates the non-ideal conditions in solar PV systems. A proposed SCL-based DPP technique utilizes a simple control strategy to extract the maximum power from the partially shaded PV modules by only processing a fraction of the power. Furthermore, an operational principle and loss analysis for the proposed converter is presented. The proposed topology is examined and compared with the traditional bypass diode technique through simulations and experimental tests. The efficiency of the proposed DPP is validated by the experiment and simulation. The results demonstrate the performance in terms of higher energy yield without bypassing the low-producing PV module by using a simple control. The results indicate that achieved efficiency is higher than 98% under severe mismatch (higher than 50%).

A dsPIC Microcontroller Based System Identification of Positive Output Buck Boost Converter for Module Mismatch Application

2015 ◽  
Vol 785 ◽  
pp. 106-110
Author(s):  
M.N.M. Hussain ◽  
Ahmad Maliki Omar ◽  
Intan Rahayu Ibrahim ◽  
Kamarulazhar Daud
Keyword(s):  
Direct Method ◽  
Low Cost ◽  
Digital Signal ◽  
Solar Irradiation ◽  
Identification System ◽  
Pv System ◽  
Partial Shading ◽  
Single Output ◽  
Pv Module ◽  
Power Point

An identification system of multiple-input single-output (MISO) model is developed in controlling dsPIC microcontroller of positive output buck-boost (POBB) converters for module mismatch condition of photovoltaic (PV) system. In particular, the possibility of the scheme is to resolve the mismatch losses from the PV module either during shading or mismatch module occurrences. The MPPT algorithm is simplified by identification approach of indirect incorporated with a simple incremental direct method to form a combined direct and indirect (CoDId) algorithms. Irregular consumption of solar irradiation on a PV module shall step-up or step down the voltage regarding to the desired DC output voltage of POBB converter. This optimized algorithm will ensure that the PV module to kept at maximum power point (MPP), preventing power loss during module mismatch incident in PV module especially during partial shading condition. The simulation and laboratory results for PV module of polycrystalline Mitsubishi PV-AE125MF5N indicate that the proposed model and development of PV system architecture performs well, while the efficiency up to 97.7% at critical of low solar irradiance level. The controlling signal is based on low-cost embedded microcontroller of dsPIC30F Digital Signal Control (DSC).

scholarly journals Series Resistance Change by Partial Shading in a-Si Thin Film Photovoltaic(PV) Module

2010 ◽  
Vol 23 (11) ◽  
pp. 901-905
Author(s):  
Jun-Oh Shin ◽  
Tae-Hee Jung ◽  
Tae-Bum Kim ◽  
Sung-Chul Woo ◽  
Na-Ri Yun ◽  
...  
Keyword(s):  
Thin Film ◽  
Series Resistance ◽  
Resistance Change ◽  
Partial Shading ◽  
Pv Module ◽  
Si Thin Film

scholarly journals MPPT of PV System Under Partial Shading Conditions Based on Bio-inspired Swarm Intelligence Technique

2021 ◽  
Vol 297 ◽  
pp. 01051
Author(s):  
Mohammed Agdam ◽  
Abdallah Asbayou ◽  
Mustapha Elyaqouti ◽  
Ahmed Ihlal ◽  
Khaled Assalaou
Keyword(s):  
Swarm Intelligence ◽  
Electrical Energy ◽  
Pv System ◽  
Partial Shading ◽  
Matlab Simulink ◽  
Photovoltaic Modules ◽  
Pv Module ◽  
Maximum Current ◽  
Maximum Voltage ◽  
Intelligence Technique

To respond to the increase in demand for electricity, the use of photovoltaics is growing considerably as it produces electrical energy without polluting the environment. In addition, to enhance the efficiency of photovoltaic modules, an MPPT algorithm is required to follow the maximum voltage and maximum current in the IV curve. This technique can be achieved by using a DC-DC converter. For this purpose, various MPPT techniques have been developed. The combination of MPPT and DC-DC converter is implemented using Matlab/Simulink and connected to a modelled PV module to validate the simulation.

scholarly journals Design of Photovoltaic System with Different Power Point Tracking Techniques for on-Grid Applications

2020 ◽  
Vol 8 (6) ◽  
pp. 213-219
Keyword(s):  
Energy Demand ◽  
Incident Angle ◽  
Photovoltaic System ◽  
High Power Conversion Efficiency ◽  
Partial Shading ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Pv Module ◽  
Power Point ◽  
Continuous Power

In India, solar energy meets consumer energy demand and majority of the plants are grid connected. Solar power is mainly depending on two factors, which are sun ray’s incident angle and change of environment conditions. The Maximum Power Point Tracking (MPPT) of photovoltaic (PV) module is necessary to maximize the extraction of PV power under partial shading conditions. The main aim of this paper is to highlight the design and implementation of 5MW solar plant with different power tracking techniques. In addition, the detailed explanation of various materials used to design the PV module is illustrated. This paper also describes the two types of solar rating panels that are used to get high power conversion efficiency as well as continuous power supply along with that the plant cost, monthly and yearly power production and corresponding efficiency is calculated.

Analytical modeling and parameter estimation of photovoltaic strings under partial shading conditions

2022 ◽  
Vol 235 ◽  
pp. 111494
Author(s):  
Jieming Ma ◽  
Dou Hong ◽  
Kangshi Wang ◽  
Ziqiang Bi ◽  
Xiaohui Zhu ◽  
...  
Keyword(s):  
Parameter Estimation ◽  
Analytical Modeling ◽  
Partial Shading

scholarly journals Macro‐model of PV module and its application for partial shading analysis

2018 ◽  
Vol 12 (15) ◽  
pp. 1748-1754 ◽  
Author(s):  
Zhang Mao ◽  
Zhong Sunan ◽  
Mao Peng ◽  
Sun Yanlong ◽  
Zhang Weiping
Keyword(s):  
Partial Shading ◽  
Macro Model ◽  
Pv Module
Sign in / Sign up

Export Citation Format

Share Document