scholarly journals An improved MPPT algorithm to minimize transient and steady state oscillation conditions for small SPV systems

2018 ◽  
Vol 7 (3) ◽  
pp. 191-197 ◽  
Author(s):  
Kashif Javed ◽  
Haroon Ashfaq ◽  
Rajveer Singh
Keyword(s):  
Steady State ◽  
Output Voltage ◽  
Low Cost ◽  
Boost Converter ◽  
Photovoltaic System ◽  
Variable Load ◽  
Solar Pv ◽  
Pv Systems ◽  
Steady State Oscillation ◽  
Transient And Steady State

Small solar PV systems mostly residential PV systems are bounded to be low cost. So these systems are required low-cost processors, and these low-cost processors can only process simple algorithm efficiently. The conventional P&O MPPT algorithm is widely employed algorithm to control solar PV systems because of its simplicity, low cost, and ease of implementation. During rapid radiation change condition (RRC) the output voltage of conventional P&O MPPT algorithm is found unstable and suffers oscillations around MPP at transient and steady state conditions. This paper proposes a simple MPPT algorithm for small or residential solar PV systems to eliminate such above said drawbacks. The proposed MPPT controls the step size (dD) of the boost converter duty cycle (D) according to the system input conditions and have the ability to compensate the transient as well as steady-state oscillations around MPP and stabilize the output voltage under RRC and variable load conditions. To validate the proposed algorithm, a 1kW photovoltaic system model is simulated using MATLAB/Simulink, and the performance of the system is also investigated under RRC. The performance of proposed MPPT algorithm is found to be adequate under various insolation patterns. An experimental set-up comprising a boost converter, solar emulator with dSPACE controller is also used to investigate the performance of proposed MPPT algorithm further.Article History: Received October 4th 2017; Received in revised form September 15th 2018; Accepted November 1st 2018; Available onlineHow to Cite This Article: Javed, K. Ashfaq, H and Singh, R. (2018). An Improved MPPT Algorithm to Minimize Transient and Steady State Oscillation Conditions for Small SPV Systems. International Journal of Renewable Energy Development, 7(3), 191-197.http://dx.doi.org/10.14710/ijred.7.3.191-197

scholarly journals Design of a Building-Integrated Photovoltaic System with a Novel Bi-Reflector PV System (BRPVS) and Optimal Control Mechanism: An Experimental Study

Electronics ◽  
2018 ◽  
Vol 7 (7) ◽  
pp. 119 ◽  
Author(s):  
Muhammad Khan ◽  
Kamran Zeb ◽  
Waqar Uddin ◽  
P. Sathishkumar ◽  
Muhammad Ali ◽  
...  
Keyword(s):  
Low Cost ◽  
Input Voltage ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Pv System ◽  
Building Integrated Photovoltaics ◽  
Pv Module ◽  
Solar Pv System ◽  
Zero Carbon ◽  
The Cost

Environment protection and energy saving are the most attractive trends in zero-carbon buildings. The most promising and environmentally friendly technique is building integrated photovoltaics (BIPV), which can also replace conventional buildings based on non-renewable energy. Despite the recent advances in technology, the cost of BIPV systems is still very high. Hence, reducing the cost is a major challenge. This paper examines and validates the effectiveness of low-cost aluminum (Al) foil as a reflector. The design and the performance of planer-reflector for BIPV systems are analyzed in detail. A Bi-reflector solar PV system (BRPVS) with thin film Al-foil reflector and an LLC converter for a BIPV system is proposed and experimented with a 400-W prototype. A cadmium–sulfide (CdS) photo-resistor sensor and an Arduino-based algorithm was developed to control the working of the reflectors. Furthermore, the effect of Al-foil reflectors on the temperature of PV module has been examined. The developed LLC converter confirmed stable output voltage despite large variation in input voltage proving its effectiveness for the proposed BRPVS. The experimental results of the proposed BRPVS with an Al-reflector of the same size as that of the solar PV module offered an enhancement of 28.47% in the output power.

scholarly journals Sensorless dual axis solar tracker using improved sun position algorithm

2020 ◽  
Vol 11 (3) ◽  
pp. 1305
Author(s):  
Chan Men Loon ◽  
Muhamad Zalani Daud
Keyword(s):  
Low Cost ◽  
Percentage Error ◽  
Total Output ◽  
Solar Pv ◽  
Pv Systems ◽  
Measured Angle ◽  
Solar Tracker ◽  
Fixed Panel ◽  
Fixed System ◽  
Better Than

This paper presents development of a prototype sensorless dual axis solar tracker for maximum extraction of solar energy. To prove the concept and evaluate the proposed algorithm, a low cost widely availabe materials were used which was programmed based on Arduino microcontroller. The porposed algorithm works based on two search methods namely the global search that approximates the best point location in a region, and local search that further determines the actual sun’s position. Experimental results showed that the proposed algorithm gives better performance compared to the existing sun position algorithm (SPA) - based method as well as the fixed panel system. In terms of total output power, the proposed algorithm gives 17.96% more efficient than the fixed system and 6.38% better than the SPA-based system. Furthermore, the percentage error of the experimental measured angle to the actual sun azimuth angle was relatively minimal (less than 3%) during clear day operation. The system was proven to be effective in tracking the sun for improved energy production of solar PV panels and the proposed algorithm also can be used for designing the tracker with larger size of solar PV systems.

Transient and Steady State Analysis of Modified Three Phase Multilevel Inverter for Photovoltaic System

2017 ◽  
Vol 8 (1) ◽  
pp. 31 ◽  
Author(s):  
M. Venkatesan ◽  
R. Rajeswari ◽  
M. Kaliyamoorthy ◽  
M. Srithar
Keyword(s):  
Steady State ◽  
Fuzzy Logic Controller ◽  
Multilevel Inverter ◽  
Photovoltaic System ◽  
Pv System ◽  
Steady State Analysis ◽  
Semiconductor Switches ◽  
Three Phase ◽  
Transient And Steady State ◽  
State Analysis

The transient and steady state analysis of Modified Three Phase Multilevel Inverter (MMLI) for Photovoltaic (PV) system fed from single DC input is presented in this paper. The transient and Steady state conditions of modified three phase multilevel inverter are analyzed using Proportional Integral (PI) and Fuzzy Logic Controller (FLC) with change in irradiance level of PV panels. The three phase multilevel inverter  is designed with reduce number of power semiconductor switches, components, single DC input and effectively controlled by using Space Vector Pulse width Modulation technique (SVPWM).  The obtained results are validated using MATLAB/ Simulink.Finaly, semiconductor switches and componets utilization of MMLI is compared with other similar topologies.

A Biologically Inspired Design Approach for Low Cost Solar Panel Systems

2014 ◽  
Author(s):  
Olufunmilola Atilola ◽  
Joseph Goodman ◽  
Kathryn Nagel ◽  
Julie Linsey
Keyword(s):  
Design Thinking ◽  
Low Cost ◽  
Solar Panel ◽  
Department Of Energy ◽  
Successful Implementation ◽  
Solar Pv ◽  
Labor Costs ◽  
Biologically Inspired ◽  
Pv Systems ◽  
Biologically Inspired Design

Biologically inspired design is the process of using biological systems as analogues to develop innovative solutions for engineering problems. This paper describes an effective and successful implementation of problem-driven biologically inspired design in a real-world problem. In support of the Department of Energy SunShot Initiative, a national collaborative effort to make solar energy cost-competitive with other forms of electricity by the end of the decade, solar panel designs were carried out by engineering and architectural design teams. Solar Photovoltaic (PV) systems were developed using analogical design, and more specifically, bio-inspired design. Some systems were also designed using non-biological analogues. Functional decompositions were employed as the first step in the design process, as a way to identify the key functions essential to the system’s reliability and cost effectiveness. Six key functions were identified. Analysis of the final designs by the teams showed that the solar panel system designs using biologically inspired analogues were more effective in meeting the six key functions identified during functional decomposition. Employing a combination of divergent and convergent design thinking is also discussed as a way for effective biologically inspired design. The top three designs selected for prototyping were biologically inspired and exceeded the project goal of reducing the installation and labor costs of solar PV systems by 50%.

scholarly journals Solar Concentrators In Malaysia: Towards The Development Of Low Cost Solar Photovoltaic Systems

2012 ◽  
Author(s):  
Firdaus Muhammad Sukki ◽  
Roberto Ramirez Iniguez ◽  
Scott G. Mcmeekin ◽  
Brian G. Stewart ◽  
Barry Clive
Keyword(s):  
Financial Analysis ◽  
Low Cost ◽  
Good Alternative ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Financial Benefit ◽  
Pv System ◽  
Solar Concentrators ◽  
Pv Systems ◽  
Solar Pv System

Solar energy has become a matter of global attention in the past few years. This paper explores the use and benefit of solar concentrators in the solar photovoltaic (PV) systems. First, a short literature review of previous research on the usage of solar concentrators in improving solar PV system performance and reducing the cost of implementation is presented. This is followed by an overview of SolarBrane, an example of a Building Integrated photovoltaic (BIPV) system which uses an optical concentrator in the solar PV design. An optimised design of the SolarBrane is also discussed afterwards. A financial benefit study is conducted to compare the average return of investment of using the optimised SolarBrane and traditional solar PV installed in Malaysia’s environment. SolarBrane has proven to be a good alternative to achieve costeffective solar PV system. The financial analysis simulated under the new Malaysian Feed–In Tariff scheme indicates that the optimised SolarBrane could potentially reduce the initial cost of implementation by 40% and generate higher return, close to 20%, when compared to traditional solar PV systems. Key words: Solar photovoltaic; solar concentrator; solarBrane; dielectric totally internally reflecting concentrator; financial analysis

scholarly journals PV array connected to the grid with the implementation of MPPT algorithms (INC, P&O and FL Method)

2019 ◽  
Vol 10 (4) ◽  
pp. 2084
Author(s):  
Oumnia Lagdani ◽  
Mourad Trihi ◽  
Badre Bossoufi
Keyword(s):  
Fuzzy Logic ◽  
Boost Converter ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Maximum Power Point ◽  
Matlab Simulink ◽  
Pv Array ◽  
Incremental Conductance ◽  
Simulation Results ◽  
Power Point

The purpose of this article is to extract the maximum power point at which the photovoltaic system can operate optimally. The system considered is simulated under different irradiations (between 200 W/m<sup>2</sup> and 1000 W/m<sup>2</sup>), it mainly includes the established models of solar PV and MPPT module, a DC/DC boost converter and a DC/AC converter. The most common MPPT techniques that will be studied are: "Perturbation and Observation" (P&amp;O) method, "Incremental Conductance" (INC) method, and "Fuzzy Logic" (FL) control. Simulation results obtained using MATLAB/Simulink are analyzed and compared to evaluate the performance of each of the three techniques.

scholarly journals Research on Application of Non-Isolated Three-Port Switching Boost Converter in Photovoltaic Power Generation System

Electronics ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 746 ◽  
Author(s):  
Shuo Liu ◽  
Ying Gao ◽  
Liyong Yang
Keyword(s):  
Power Flow ◽  
Degrees Of Freedom ◽  
Flow Direction ◽  
Low Cost ◽  
Storage System ◽  
Operating Mode ◽  
Energy Storage System ◽  
Boost Converter ◽  
Photovoltaic System ◽  
Research On Application

This paper presents a non-isolated three-port switching boost converter and applies it to photovoltaic systems. The topology combines the characteristics of the switching boost network. By controlling three degrees of freedom, the ports have boost, buck, and buck-boost characteristics. It expands the three-port converter (TPC) working range with the advantages of simple structure, small size, and low cost. The operating mode and power flow direction of the TPC are determined according to the state of charge (SOC) of the energy storage system. Analyses of the working state of the topology in different working modes further verify the power flow of the system and explain its control strategy to complete the smooth switching of different working modes. Finally, the correctness of the above theory and its feasibility in photovoltaic system are verified by simulation and experiment.

Photovoltaic System with SEPIC Converter Controlled by the Fuzzy Logic

2016 ◽  
Vol 7 (4) ◽  
pp. 1283 ◽  
Author(s):  
Meryem Oudda ◽  
Abdeldjebar Hazzab
Keyword(s):  
Fuzzy Logic ◽  
Duty Cycle ◽  
Output Voltage ◽  
Fuzzy Logic Controller ◽  
Photovoltaic System ◽  
Utilization Efficiency ◽  
Solar Pv ◽  
Solar Panels ◽  
Dc Bus ◽  
Bus Voltage

<span lang="EN-US">In this work, a fuzzy logic controller is used to control the output voltage of a photovoltaic system with a DC-DC converter; type Single Ended Primary Inductor Converter (SEPIC). The system is designed for 210 W solar PV (SCHOTT 210) panel and to feed an average demand of 78 W. This system includes solar panels, SEPIC converter and fuzzy logic controller. The SEPIC converter provides a constant DC bus voltage and its duty cycle controlled by the fuzzy logic controller which is needed to improve PV panel’s utilization efficiency. A fuzzy logic controller (FLC) is also used to generate the PWM signal for the SEPIC converter. </span>

Implementation of a Low Cost Resonant Boost Converter Connected Photo Voltaic System

2013 ◽  
Vol 768 ◽  
pp. 80-83
Author(s):  
R.C. Ilambirai ◽  
Rajesh Boga
Keyword(s):  
Hardware Implementation ◽  
Low Cost ◽  
Boost Converter ◽  
Photovoltaic System ◽  
Voltage Source ◽  
Maintenance Cost ◽  
Dc Voltage ◽  
Switching Losses ◽  
Different Temperatures ◽  
Photo Voltaic

This paper proposes a hardware implementation of a resonant boost converter with photovoltaic system. The converter finds varied advantages like lower switching losses and increased efficiency. With the increased rate of energy crisis, the converter has paved a new way for solving the problem, in the recent years. The dc voltage source of the resonant boost converter is replaced by a photovoltaic system that energizes the converter. The renewable energy minimizes the fuel cost and highly decreases the maintenance cost. A PIC microcontroller is used to generate the pulses of the transistor switches in the boost converter and for the inverter circuit. Implementation of a low cost 16F877A microcontroller with a resonant boost photo voltaic system with higher efficiency and the experimental results has been tabulated. The performance of the circuit has been verified at different temperatures for different applications.

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