The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The (P-V) photovoltaic panel's characteristic is nonlinear and highly depended on solar irradiation and temperature cell variations. For that reason, a Maximum Power Point Tracking (MPPT) algorithm is essential so that it is possible to draw peak power from the photovoltaic panel to obtain the maximized produced energy. The main purpose of MPPT technique is to make sure that the solar panel is producing...
This paper presents the design, modeling and simulation of hybrid power system driven by two sources of renewable energy. The first studied system is a photovoltaic generator, which is a DS-100M model consists of six models connected in series and it is linked to a DC/AC inverter where the MPPT controller, based on the Perturb and Observe technique, is applied. The second one is a small wind turbine...
The expanding installation of photovoltaic (PV) resources into power systems continue to grow which affects both structural and dynamics of power systems. The effects of large-scale grid-connected PV on the stability of power systems becomes a serious concern, because of the different dynamic behaviour of the power system with a considered portion of inertialess of the P-V based systems. This paper...
Many airports have become aware of the environmental benefits of using renewable energy resources, and they have focused their efforts on introducing solar photovoltaic (PV) systems on their available free land. Compared to other renewable energy technologies, solar PV arrays are the most suitable technology for airports. Because of the mandatory security requirements at airports, using solar PV is...
Recent years have been characterized by an increasing energy demand and by growing attention to energy production sustainability. For this reason, the number of plants powered by renewable sources has increased. Simultaneously, the energy sector has to face increasing uncertainty due to market liberalization. These factors has made it necessary for investors to find a proper evaluation method for...
This paper presents results of techno-commercial feasibility study comparing wireless over wired monitoring in installed solar photovoltaic (PV) plants. As subsidies for Solar PV projects are declining world-wide, the solar industry is looking for opportunities to reduce both the up-front capital expenditure (capex) and the operations and maintenance expenditure (opex) for solar PV plants. In addition,...
The self-consumption is a hot topic, it relates to both the energy management and the control of energy expenses and also produce renewable energy. However, the self-consumption present constraints related to variations in the solar production and the load curve of the consumer. In order to promote the use of renewable energies, contribute to the reduction of gas CO2 emissions, protect the environment...
This paper, present a study of a system consist of a hybrid association of thermoelectric generators, that generates electricity from heat using the Seebeck effect. This work helps demonstrate the potential of these modules as a renewable energy source by simulating their performance in level of electrical power generation and cost. The parameters of this system are simulated to give an idea about...
In recent years, the demand for electrical energy has increased drastically which is not met by the conventional energy resources. Hence renewable energy has now come into existence because of pollution free, economical features etc. In order to make use of the power from these renewable sources efficiently, designing of single stage power converter is inevitable. Therefore this paper proposes a novel...
The main function of the dc–dc converter in a grid-connected photovoltaic (PV) system is to regulate the terminal voltage of the PV arrays to ensure delivering the maximum power to the grid. The purpose of this paper is to design and practically implement a robust continuous-time model predictive control (CTMPC) for a dc–dc boost converter, feeding a three-phase inverter of a grid-connected PV system...
Buildings of commercial and non commercial purpose consume large amount of electricity. Therefore to design a green or smart city the biggest challenge for a designer is to convert all buildings from energy consumer to energy producer. Recent study reveals that most of the designer prefer solar energy for smart city development because it can be housed in a limited space and is characterized as pollution...
The aim of this study is to review photovoltaic systems, solar water heating systems and photovoltaic-thermal system, in order to understanding the principles of operation of a hybrid PVT system. The main objective of this review is to evaluate the techno-economic performance of a hybrid photovoltaic-thermal system (PVT) and compare with that of a separate performance of PV and SWH systems. A case...
The generation of electricity from photovoltaic solar energy is an excellent choice to meet the growing energy demand while combating the harmful effects on the environment caused by fossil fuels. Climatic and environmental characteristics of northern Chile show encouraging conditions for the implementation of photovoltaic solar technology. In this study relevant data that contribute to the current...
In this paper, we will present a design study and optimization of a hybrid power system for the electrification of isolated sites, and which combines two renewable energy sources, solar and wind, with storage battery to ensure full autonomy of the system. The aim is to dimension the optimal configuration PV/Wind/Batteries, which fill the need of a daily electrical demand, following the approach which...
This publication demonstrates that flywheel energy storage systems (FESS) are a valid alternative to batteries for storing energy generated by decentralized rooftop photovoltaic systems. The increasing number of private PV arrays calls out for high energy storage capacities in order not to overload the grid. Despite being the current storage technology of choice, chemical batteries are still too expensive...
Renewable energy is one of technologies that can be used as an alternative technology to fulfill the growing energy needs. Photovoltaic technology types is already widely available on the market. The manufacturer usually gives the characteristic parameters of photovoltaic modules. However, these characteristics will not be the same when the PV modules used in the actual operating conditions in the...
This paper presents a new control strategy based on Lyapunov theory used to control a quadratic boost converter used in solar energy system. The proposed controller assures the stability of the system. To provide a maximum power extraction, a maximum power point tracking (MPPT) is included in the controller. First a simple MPPT algorithm based on the fact that the derivative of the power with respect...
This paper proposes a method for standardizing the measurement of carbon reduction when using renewable energy sources in conjunction with utility grid energy. The term renewable energy will be used to describe systems that do not depend on the burning of hydrocarbon based fuels to produce electricity. Greenhouse gasses will be used to describe emissions like carbon dioxide, carbon monoxide, nitrous...
This paper studies roles of power distribution systems in smart grid and their protection from lightning in order to present our country's technical levels and philosophies in smart grid and renewable energies. Existing lightning protection technologies and predicted changes after electricity deregulation and large penetration of distributed generations are stated.
This paper presents the determination of capacity and operational schedule for a grid-tied microgrid system based on a stochastic optimization method. A photovoltaic power system is used as a renewable energy source, while battery system is utilized as energy storage systems. The microgrid system can be operated using the usual priority scheme or the proposed scheduling scheme. The mathematical model...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.