Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Perturb and Observe"”.
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Modeling and Charging Control of a Lithium Ion Battery System for Solar Panels
<p>The advancement in solar panel and battery technology makes them useful for energy supply and storage. This thesis involves the modeling and charging control of a lithium ion battery system for solar panels. The proposed model is based on the parameters and characteristics of a realistic battery …
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Performance of maximum power point tracking by using conventional and soft computing techniques during partial shading conditions
… ability of a specific solar module conversion and efficiency to extract maximum available power. In this study, the MSX-64 PV module and boost DC/DC converter are used for simulation and modeling the maximum power point tracking system. Maximum power extraction from PV system can be achieved by …
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Investigation of multiple-input single-output power conversion for advanced solar cell systems
Laterally-Arrayed Multiple-Bandgap (LAMB) solar cells provide the potential for improved energy capture, but require sophisticated interconnection and power conversion. Different topologies for a cell block interconnection were investigated and equations providing the estimated losses in those …
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Peak power tracking for a solar buck charger
This thesis discusses the design, implementation, and testing of a buck converter with peak power tracking. The peak power tracker uses a perturb and observe algorithm to actively track the solar panel's peak power point and a global sweep algorithm accounts for startup and multiple local maxima. …
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Vibration Energy Harvesting IC Design with Incorporation of Two Maximum Power Point Tracking Methods
… architecture is adopted to extract power and regulate the output voltage for the load with one stage. The power stage is controlled with a new maximum power point tracking (MPPT) algorithm, which integrates both fraction open circuit voltage (FOCV) and perturb and observe (PandO). The …
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Analysis and observation of grid connected single phase inverter integration
… point to be tracked, a singlephase inverter and PI controller, all connected to a single-phase utility grid. The maximum power point is maintained with a perturb and observe method. A PI controller is used to control the power injected into the grid. The controller is used to generate PWM and …
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A comparative study of MPPT and voltage regulator controllers for controlling output voltage in PV applications
The demand for renewable energy sources is more and more increasing on each passing year. Since with the increasing number of the human population, the demand for energy is increasing at an alarming state. Petroleum resources are very limited and in this scenario, renewable energy sources such as …
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Fpga-based Design Of A Maximum-power-point Tracking System For Space A
… by solar arrays, must have high efficiencies and low weights in order to meet stringent design constraints. Power conversion from these arrays is required to provide robust and reliable conversion which performs optimally in varying conditions of peak power, solar flux, and occlusion …
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Design and analysis of current stress minimalisation controllers in multi-active bridge DC-DC converters.
… within DC microgrids, medium voltage DC and high voltage DC transmission systems. This is encouraged by MAB's several functionalities such as DC voltage stepping/matching, bidirectional power flow regulation and DC fault isolation. In that sense this family of DC-DC converters is similar …
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Direct Torque Control for Silicon Carbide Motor Drives
… advantages, e.g., the fast dynamic response and the robustness against motor parameters variations, uncertainties, and external disturbances. Using higher switching frequency is generally required by DTC to reduce the torque ripples and decrease stator current total harmonic distortion (THD), …
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Maximizing efficiency of solar energy harvesting systems supplying a microgrid using an embedded system
… initial capital cost of photovoltaic (PV) panels and their low conversion efficiency, it is imperative to operate the PV system at its maximum power point (MPP). In this context, the goal in this thesis is to develop and improve the PV system, by contributing to the optimization of energy …
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Modelling and Tracking of the Global Maximum Power Point in Shaded Solar PV Systems Using Computational Intelligence
… energy sources that are environmentally friendly and are now widely used as a source of power generation. The power produced by solar PV varies with temperature, solar irradiance and load. This variation is nonlinear and it is difficult to predict how much power will be produced by the solar PV …
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Design and Analysis of a Small-Scale Wind Energy Conversion System
… wind energy conversion system (WECS) design and implementation. The dissertation will focus on implementing a hardware prototype to be used for testing different control strategies applied to small scale WECSs. Novel control algorithms will be proposed to the WECS and will be verified …
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Deep Reinforcement Learning-Based Approaches for the MPPT Control of Standalone Solar PV Systems
… by weather conditions, including temperature and irradiance changes. As a result, “maximum power point tracking (MPPT)” methods are employed by researchers to guarantee that solar PV operates efficiently at their special point of operation, called the “maximum power point (MPP)” in various …