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[IEEE 2018 5th International Conference on Information Technology, Computer, and Electrical Engineering (ICITACEE) - Semarang, Indonesia (2018.9.27-2018.9.28)] 2018 5th International Conference on Information Technology, Computer, and Electrical Engineering (ICITACEE) - Maximum Power Tracking of Solar Panel using Modified Incremental Conductance Method
摘要： Static method to optimize a power delivered by a solar panel is called Maximum Power Point Tracking (MPPT). The method tries to find a maximum power from its PV solar panel characteristics curve using a power converter. MPPT is realized using a buck boost converter and Filter variable step size modified incremental conductance method. Experimental works show that the MPPT system successfully seeks its maximum power and decreases the oscillation during pathway to reach the maximum power. The power generated by the solar panels at 1000 watt/m2 (without MPPT) is 4.17 watt (R = 50 Ω) and 2.37 watts (R = 25 Ω). MPPT system can increase the power to solar panels into 4.48 watt (R = 50 Ω), and 4.32 watt (R = 25 Ω). The power generated by the solar panels at 750 watt/m2 (without MPPT) is 2.53 watt (R = 50 Ω) and 1.48 watts (R = 25 Ω). MPPT system designed also improve the power of solar panels into 3.02 watt (R = 50 Ω) and 3.02 watt (R = 25 Ω). The error steady state in the maximum power condition is 1.188%.
关键词： Maximum Power Point Tracking,Filter variable modified Incremental Conductance,Buck Boost Converter
更新于2025-09-23 15:23:52
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[IEEE 2020 International Conference on Emerging Trends in Smart Technologies (ICETST) - Karachi, Pakistan (2020.3.26-2020.3.27)] 2020 International Conference on Emerging Trends in Smart Technologies (ICETST) - Soft Computing Technique based Nonlinear Sliding Mode Control for Stand-Alone Photovoltaic System
摘要： Energy production capability of a photovoltaic (PV) system is extensively depends upon the ambient temperature (T) and solar irradiance (Ee). In order to adapt the ever increasing interest in energy, the PV array must be operated at the maximum power point (MPP). However, due to varying climatic conditions, there is a low energy ef?ciency problem. In this research article, a robust and ef?cient nonlinear sliding mode control (SMC) based maximum power point tracking (MPPT) technique is designed to extract maximum power from the PV array. This study uses arti?cial feed-forward neural network (AFNN) to generate the reference voltage for MPPT using non-inverting DC-DC Buck-Boost converter. Asymptotically convergence is ensures using Lyapunov stability criteria. The MATLAB/SIMULINK platform is used to design, simulate and test the performance of the proposed technique. To further validate the proposed control technique in terms of ef?ciency, tracking speed and robustness, results are compared with the non-linear backstepping (B) technique under continuous conditions of environment, faults and parametric uncertainties.
关键词： Buck-Boost converter,Neural Network,MPPT,Photovoltaic,SMC
更新于2025-09-23 15:21:01
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[IEEE 2020 International Conference on Emerging Trends in Smart Technologies (ICETST) - Karachi, Pakistan (2020.3.26-2020.3.27)] 2020 International Conference on Emerging Trends in Smart Technologies (ICETST) - Terminal Sliding Mode Nonlinear Control Strategy for MPPT Application of Photovoltaic System
摘要： The electricity generation from the photovoltaic (PV) system has been considered as an alternative energy resource to the fossil fuels since last decade. Solar energy is the most abundantly available renewable resource on earth. However, source to load conversion efficiency of PV system is low but installation cost is appreciable. In order to achieve maximum power, the system must be operated at maximum power point (MPP). Maximum power point tracking (MPPT) is very essential in the process of maximum power extraction of the PV system. This research article presents the terminal sliding mode control (TSMC) nonlinear MPPT control paradigm for stand-alone PV system using buck-boost converter. Radial basis function neural network (RBF NN) is generated the reference for the proposed TSMC in controller. The simulations are performed in MATLAB/Simulink. To evaluate the developed controller performance, TSMC is tested under varying conditions of environment and resistive load with fault and uncertainty. Moreover, proposed nonlinear TSMC MPPT control technique is compared with the conventional techniques such as proportional integral derivative (PID) and perturb and observe (P&O). The finite time stability analysis is explained via Lyapunov function.
关键词： TSMC,Finite time stability,Buck-Boost converter,MPPT,RBF NN
更新于2025-09-23 15:21:01
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[IEEE 2018 2nd IEEE International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES) - Delhi, India (2018.10.22-2018.10.24)] 2018 2nd IEEE International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES) - A Modified Perturb & Observe Algorithm For Maximum Power Point Tracking With Zero Voltage Switching Buck Boost Converter in Photovoltaic System
摘要： The conventional perturb and observe algorithm used for maximum power point tracking of PV system suffers from major drawbacks such as steady state oscillation around final maximum power point and loss of tracking direction i.e. divergence from actual maximum power point for rapid change in insolation. Both these problems result in significant power loss as the PV system operating point is getting diverted from actual maximum power point. As Buck-Boost converter plays an important role while changing the operating point of PV panel, it contributes to significant amount of power loss in the form of switching loss, conduction loss etc. This paper proposes a method to avoid the above given shortcomings of perturb & observe algorithm. Major focus is given on the designing of Buck-Boost converter as to date nobody has taken into consideration the losses occurring in the converter even though converter forms an integral part of the MPPT set up. The losses occurring in the conventional buck boost converter have been computed and its effect on the efficiency of MPPT system is investigated. The soft-switched buck boost converter for PV applications is designed so as to minimize the losses taking place in converter.
关键词： Buck-boost converter,Perturb and observe (P&O),Photo voltaic (PV),Soft switching,Zero voltage switching (ZVS)
更新于2025-09-16 10:30:52
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AIP Conference Proceedings [AIP Publishing TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr - Athens, Greece (4–6 September 2019)] TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr - Comparative study on photovoltaic water pumping systems driven by direct current motor (DCM) and induction motor (IM) optimized with P&O control
摘要： This paper presents a comparison between two photovoltaic water pumping system driven by a separately excited DC motor (DCM) and an induction motor (IM), via a DC/DC buck-boost converter coupled to a centrifugal pump. The two systems are optimised by a P&O MPPT algorithm, which aims to the maximisation of the global efficiency, will lead consequently to maximize the drive speed and the water discharge rate of the coupled centrifugal pump. Each component of the PV water pumping system is studied and analyzed in MATLAB/SIMULINK. The two systems are then compared in terms of efficiency and quantity of water pumped per day. The study concludes that the IM-driven PV system yields highly favorable results and requires less maintenance compared with other systems.
关键词： photovoltaic water pumping,induction motor,DC/DC buck-boost converter,centrifugal pump
更新于2025-09-12 10:27:22
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[IEEE 2018 2nd IEEE International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES) - Delhi, India (2018.10.22-2018.10.24)] 2018 2nd IEEE International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES) - An ANFIS Artificial Technique Based Maximum Power Tracker for Standalone Photovoltaic Power Generation
摘要： This paper mainly develops a buck-boost converter based standalone photovoltaic system (PV) for power generation with maximum power point tracking (MPPT). Buck/boost converter is controlled by an adaptive neuro fuzzy inference system (ANFIS) MPPT algorithm which is programmed in a microcontroller. Inverter current controller using dSPACE DS1104 is performed for this purpose. Reliability and validity of standalone photovoltaic power generation system is justified using found Simulink and hardware results.
关键词： DC-DC buck boost converter,Standalone photovoltaic system,ANFIS,MPPT,dSPACE DS1104
更新于2025-09-12 10:27:22
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Design of a Photovoltaic System with Ultracapacitor Energy Buffer
摘要： Global concerns over the damage caused to the environment by fossil fuels, as well as the instability of oil prices, has led to an increase interest in alternate electric power generation from renewable sources such as the sun, wind and geothermal energy. Solar energy is produced by solar panels which are made of materials having the capacity to create a flow of electric carriers when exposed to the solar irradiance. The efficiency of these panels depends on the sun light, and they cannot work at their maximum power point independently, hence, requiring Maximum Power Point Tracker (MPPT). This MPPT permits to compensate the changes in irradiance and temperature conditions and variations in load demands which cause power imbalances. As such, a photovoltaic system with supercapacitor energy buffer is designed using Psim software. The system consists of a photovoltaic array, a MPPT, a supercapacitor, and a charge controller which is to effectively balance and regulate power in the system.
关键词： Charge controller,Psim,Solar panel,Maximum Power Point Tracking,Buck-Boost converter,Ultracapacitor
更新于2025-09-12 10:27:22
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Output current ripple reduction of LED driver using ceramic‐capacitor‐input circuit and buck‐boost converter
摘要： This article proposes an LED driver that consists of a ceramic-capacitor-input rectifier and a buck-boost converter. The LED driver has an advantage of long life because it does not contain any electrolytic capacitors. However, the issue with electrolytic capacitor-less LED driver is that the ripple of the smoothed voltage becomes large due to insufficient capacitance of the smoothing capacitor. The proposed method, which uses the discontinuous current mode of a buck-boost converter, reduces the output current ripple under such conditions. Experimental results using a 5.7 W LED driver prototype demonstrate that the proposed method reduces the output current ripple and that the percent flicker becomes 4.4%, which is smaller than the recommended upper limit of 8%.
关键词： ceramic capacitor,LED driver,buck-boost converter,electrolytic capacitor-less,discontinuous current mode
更新于2025-09-12 10:27:22
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[IEEE 2018 International conference on computation of power, energy, Information and Communication (ICCPEIC) - Chennai, India (2018.3.28-2018.3.29)] 2018 Internat2018 International Conference on Computation of Power, Energy, Information and Communication (ICCPEIC)ional conference on computation of power, energy, Information and Communication (ICCPEIC) - Solar PV Array Based Water Pumping by Using Srm Drive: A Review
摘要： This paper is a review on 4 phase 8/6 switched reluctance motor (S RM) powered by solar PV array using the buck-boost dc-dc con verter. The water pumping system is operating S RM. The main objective of this paper is to regulate the speed of S RM dri ve to pump the water through the DC link voltage of a mid-point converter. The split capacitor con verter for S RM dri ve called as mid-point converter is electronically commutated is inexpensive, reliable and efficient than conventional DC and AC electrical machines used in this application, because of its simple construction. The losses in mid-point converter can be reduced by using S RM drive at its fundamental frequency and also the efficiency of the proposed system can be increased. The DC-DC buck-boost con verter is working in continuous conduction mode (CCM). The CCM operation decreases the losses of DC-DC converter. The soft starting of 4 phase 8/6 S RM drive is also achieved through proper selection of step-size in incremental conductance (InC) algorithm method of maximum power point tracking (MPPT). The DC-DC buck-boost con verter is the unique converter which allows excellent tracking of PV array maximum MPP rather than of temperature and insolation levels.
关键词： Solar PV Array,SRM,soft starting,InC-MPPT algorithm,Buck-boost converter
更新于2025-09-10 09:29:36