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 11 of 11 for “"PR controller"”.
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A Wide Range and Precise Active and Reactive Power Flow Controller for Fuel Cell Power Conditioning Systems
This dissertation aims to present a detailed analysis of the grid voltage disturbance in frequency domain for the current control design in the grid-tie inverter applications and to propose current control techniques in order to minimize its impact and maximize feasibility of the power conditioning …
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Development of P-resonant controller for Z-source three phase inverter
This project presents a P-Resonant (PR) controller to control the output current and voltage for a Z-Source three phase inverter. The model scheme is developed and simulated in MATLAB/Simulink software environment. The Z-Source inverter is special type of inverter that provide the voltage boost …
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The THD performance of single phase five level inverter using pr and harmonic compensators current controller
… output. This project is to observe the THD performance of single phase five level inverter using proportional resonant (PR) and harmonic compensators current controller. The PR controller not only solve the current and harmonic problem, but also efficiency and …
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Development of p resonant current control for dc motor by using Arduino
… resistors or electronic controls. But the problems in applying this conventional control method are the effects of nonlinearity in a DC motor. This project presents the development of Proportional Resonant (PR) current control for DC Motor. P Resonant (PR) type controller has been proposed …
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Frequency Control of Wind and PV Based Isolated Microgrid
… The frequency and voltage fluctuation are major problems in such remote microgrid due to intermittent nature of renewable resources like wind and solar PV. The frequency fluctuation should remain within acceptable limits for stable operation of the remote microgrid. This thesis work focuses on …
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Modeling and Control Design of a Bidirectional PWM Converter for Single-phase Energy Systems
This thesis proposes a complete modeling and control design methodology for a multifunctional single-phase bidirectional PWM converter in renewable energy systems. There is a generic current loop for different modes of operation to ease the transition between different modes, including stand-alone …
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Control of a Single-Phase Grid-Connected Voltage Source Inverter with LCL Filter
This thesis presents new control approaches for improving the performance, stability, and efficiency of a single-phase grid-connected voltage source inverter (VSI) with an LCL filter that is used in renewable energy power conditioning applications. There are two main controllers that need to be …
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Single stage boost inverter for standalone fuel cell applications
The proton exchange membrane fuel cell (PEMFC) is a promising technology that can be manufactured in South Africa because of the platinum catalyst required. South Africa is rich in platinum and, therefore, the PEMFC system can be cost-effectively produced. In residential stationary applications of …
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Cascade Dual-Buck Inverters for Renewable Energy and Distributed Generation
… renewable energy sources. This dissertation proposes a new type of cascade inverters based on dual-buck topology and phase-shift control scheme. Compared to traditional cascade inverters, they have enhanced system reliability thanks to no shoot-through problems and lower switching loss with …
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Analysis and Design of a DCM SEPIC PFC with Adjustable Output Voltage
… and wide range output regulation would be preferred. The Analysis and design work is present in this article for a non-isolated hard switching DCM SEPIC PFC. Due to DCM operation of SPEIC converter, wide adjustable step-down output voltage, continuous conduction of input current and …
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Control Design of a Single-Phase DC/AC Inverter for PV Applications
<p>This thesis presents controller designs of a 2 kVA single-phase inverter for photovoltaic (PV) applications. The demand for better controller designs is constantly rising as the renewable energy market continues to rapidly grow. Some background research has been done on solar energy, PV inverter …