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Electrical and Computer Engineering

Theses and Dissertations

Theses/Dissertations

2018

Photovoltaic

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Full-Text Articles in Engineering

Design And Optimization Of Hybrid Energy Storage For Photovoltaicpower Fluctuation Smoothing Based On Frequency Analysis, Yanting Zeng Mar 2018

Design And Optimization Of Hybrid Energy Storage For Photovoltaicpower Fluctuation Smoothing Based On Frequency Analysis, Yanting Zeng

Theses and Dissertations

As the output power of photovoltaic generation system is affected by factors such as light intensity and temperature, it creates greater randomness and volatility. When the power changes quickly and fluctuates, the traditional energy storage devices often can’t balance the power effectively. In this research Fast Fourier Transform (FFT) method is used to transform the photovoltaic stabilization power in the original time domain to the frequency domain for analysis. And percentage method was used to select the most typical PV data in the frequency domain. Then, the selected power was converted back to the time domain using Inverse Fast Fourier …


Photovoltaic Inverter Control To Sustain High Quality Of Service, Yan Chen Jan 2018

Photovoltaic Inverter Control To Sustain High Quality Of Service, Yan Chen

Theses and Dissertations

The increasing penetration of distributed solar photovoltaic (PV) generation presents both challenges and opportunities for distribution systems. The intermittent nature of solar irradiance may lead to power quality degradation. At the same time, PV inverters –if properly designed and operated– can be used to improve power quality. The goal of this dissertation is to develop power flow optimization methods for power distribution networks with high penetration of PV generation. The approaches proposed in this dissertation have been tested using the modified version of the IEEE 34-node distribution system and the IEEE 123-node distribution system, as well as the validated model …