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Integrate Solar PV in scalable on to the grid connected and standalone power generation system has increased attention in these days due to its sustainability and more greener generation. This has become a good option to reduce the telecom Radio Base Stations utility power consumption. The techno economic feasibility of Solar PV integration methodologies in to On-Grid telecom based stations, basically...
The ease of expansion of power system and lowered cost made the use of modular converters in Renewable Energy System more common. Different configurations are implemented depending on the applications. Control strategies like fuzzy logic, droop method and charge control scheme are developed for achieving sharing of current and voltages among the converters. In this paper new modularization architecture...
This paper discusses about the hybrid cascaded nine level inverters for photovoltaic applications. Cascaded multi-level inverter is made up of series connected half bridge inverters and the output voltage of cascaded MLI is the sum of all inverter output voltages. Cascaded MLI produce staircase output voltage waveform having less harmonics, high output voltage, lower acoustic noise, as compared to...
This paper proposed a novel PV faults diagnosis method, which is based on the structure of differential power processing (DPP). Since the conventional PV faults diagnosis methods are very easily affected by the working environment conditions, such as solar irradiance and temperature. Compared to the conventional methods, this method is able to diagnose several PV modules at the same time. Furthermore,...
This paper proposes the finite control set applied to the current control of an interleaved boost converter of photovoltaic systems. The proposed controller select the state of the converter semiconductor by using the predicted behavior of the converter and the minimization of a cost function. Hence, the controller guarantees that the current reference is reached. The current reference is computed...
In this article a sliding mode plus PI controller is proposed to control of the voltage and the input current of a photovoltaic system. The proposed nonlinear controller is designed to control the duty cycle of the two level interleaved boost converter due to changes in the operating conditions of the photovoltaic panel (changes in irradiance levels). Besides this, the proposed controller can operate...
In order to efficiently use solar energy to generate electrical power, three-dimensional (3D) Fibonacci number photovoltaic modules (FPMs), which are designed in part based on natural plant leaf arrangements were proposed. It has been also proposed the large-scale power generation systems using multiple FPMs (hereinafter, power generation forests), and shown its power generation characteristics by...
Using renewable sources to meet the load demand in the distribution level has become more economical and prevalent. The integration of these sources has impact on the load flow direction and magnitude. These changes can affect the operation of overcurrent (OC) relays as the main protective device in medium voltage (MV) distribution networks. In other words, the changes in the current magnitude and...
Nowadays, thermo electrical (TE) modules are increasingly popular because their prices go down and new potential applications have emerged. This paper presents modeling, simulation, and control of the power generation of a thermoelectric generator (TEG) using Matlab/Simulink. To get the aim of maximizing the power from the TEG, an MPPT controller based on sliding mode control (SMC) was implemented...
The present article refers to a monitoring system applied to hybrid plants for energy distributed generation in Brazil, which contains software and hardware solutions that allow for remote data collection and storage, the monitoring of production unit performance and delivery of command to devices. This solution was developed for research purposes and the analysis of performance in microgeneration...
A home solar power system for micro electric vehicles (EVs) is one of the important technologies to realize a sustainable energy society. The aim of this paper is a demonstration of a high performance digital control phase-shifted full-bridge converter connected between solar panels and the dc-bus line. Since the voltage in a home storage battery and EV battery is around 72V in some products, the...
Driven by economic and environmental concerns, countries around the world are demanding renewable energy resources (RES). Among the available renewable resource; wind and solar energy are promising resources. Recent energy regulations in Jordan have allowed the customers to install their own Photovoltaics generation (PVs) to cover their full energy consumption. This paper investigates the impact of...
We propose a self-sustaining power supply system for a small radio base station. The system can reduce the power consumption by switching the radio unit from active to wainting mode. We propose a threshold control method for determining the waiting mode according to the volume of traffic. We compared it with a schedule control and proved that the threshold control performs better.
For a high penetration of intermittent renewable energy sources, they may cause transmission-line congestion problems in power systems. In particular, among the current forecasting methodologies for renewable generation, an extremely large (but rare) forecasting error in the renewable generation inevitably occurs. In a previous paper, the authors developed a line current variation model to represent...
This study investigates the effectiveness of a time-frequency analysis of photovoltaic signals with transients caused by shading on the solar panel. The prototype experiment for the signals acquisition was performed by simulating the desired disturbances on the photovoltaic panel. In this direction, the signals were analyzed by a scheme called variable short-time Fourier transform, that has a varying...
The main purpose of this paper is to investigate the reduction of peak power consumption by using photovoltaic (PV) system. The decrease of the peak load in terms of demand side management is one of the important studies in smart grid. Renewable sources can be used to enhance the efficient use of the existing infrastructure. Technical and financial feasibility of PV used electricity peak power consumption...
Smart grids make possible the insertion of distributed generation more securely due to control strategies and access to remote and almost on-line information. Also, it allows a higher interaction of consumers and network and the use of time-based tariffs, which encourage responsible demand. This work presents an economic viability analysis for residential consumers who opt for the installation of...
The purpose of this paper is to present an estimation method of an optimum capacity of a storage battery system by combined use of a renewable energy and emergency generators (EGs) installed in a large hospital The hospital is planning to install a photovoltaic power generation system (PV) due to reduce a cost of the power. When the PV is installed, the battery is also to being planned for stable...
This paper presents a comparison of optimum energy scheduling of emergency generators (EGs) of a large hospital with renewable energy system using mathematical programming methods. A large hospital has the EGs to keep a medical service when a power failure occurred in disaster In using the EGs, the hospital has to save the fuel consumption in island operation mode to drive the EGs as long as possible...
The current paper explores a solar and wind energy system that is capable of operating in both: on-grid and off-grid regimes. The system contains two on-grid and one off-grid inverter for that purpose. The off-grid operation of the analyzed system is more vulnerable to instabilities. Experiments where made to show how inrush currents of electrical loads cause transient processes in such a renewable...
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