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The continuous rise of energy demand worldwide combined with the decrease of natural resources such as fossil fuel represents a huge energy problem which facing humanity. Industry as well as consumers must rethink how to produce and use energy at low cost price. Renewable Energy (RE) applications and energy savings are keys to meet this challenge in a sustainable way and reduce the percentage of carbon...
In the present work, we developed a computerized methodology to optimize the design of an off-grid hybrid solar community electrification. It is based on a 3-phase process: (1) Determining the load profile of the village by making a power balance, the average daily consumption and establishing the load; (2) Determining the optimum photovoltaic (PV) peak capacity and storage capacity which yield the...
Optimal unit sizing of generation units in small off-grid systems is an important aspect to minimize total annual cost. This can be applied to wind, photovoltaic (PV), and hybrid wind-PV power generating systems to meet power demand for a residential home constructed at a specific site located in remote hilly areas in Turkey's northwest Black Sea coast where no grid extension is available. It is obvious...
Depending on applied criteria, sizing optimization process of renewable energy plants produces different optimal dimensions of the system components. This work presents a sizing algorithm of hybrid solar/diesel/battery system; where the battery depth of discharge (DOD) range setting is considered as a key to guarantee low overall system cost and minimum CO2 emission. Different DOD range setting values...
Energy management system (EMS) plays a crucial role in Microgrids. It is responsible for the power balance between generation and consumption. Different architectures for EMS are possible: the centralized, decentralized and hierarchical. The hierarchical is a good candidate to smooth the transition from the existing power management system to the Microgrid (MG) management configuration. Besides, multiagent...
Diesel generators (DGs) or solar panels are widely used to provide electricity in isolated regions in Morocco. However, the instability of fuel prices and the stochastic nature of renewables imply that these systems cannot effectively supply the load demand with a good reliability. In this paper, an analysis of different energy components was performed in order to have a cost-effective and reliable...
In this paper, multi-agent architecture was used to provide control for standalone microgrid with distributed generations. Therefore, to achieve a faster control compared to the centralized controller, each agent incorporated with a local prediction or forecasting model to provide anticipatory responses. To accomplish their common goals successfully, the agents cooperated based on facilitator architecture...
In the recent years, microgrids have become increasingly popular among the consumers due to its energy efficient mechanism, network benefits and improved energy reliability. However, when they are operated as autonomous systems, several technical problems related with its operations and control has emerged as a challenge. To overcome this impending issue, this paper proposes an optimized approach...
This paper presents the design of a control strategy for Hybrid Photovoltaic — Battery Generator for Onboard Automotive Application. The proposed strategy is based on maximum power point tracking (MPPT) controller using adaptive fuzzy logic approach combined with an energy management supervisor in order to ensure system efficiency under variation of operating conditions: load requirements, meteorological...
This paper presents a frequency-based approach energy management in an Electrical Hybrid Boat (EHB) application. An association of a variable speed DieselPermanent Magnet Generator (Diesel-PMG) with a supercapacitor and a battery bank is proposed to satisfy energetic demand of EHB. The supercapacitor and the battery bank are connected to DC-link via bidirectional DC/DC converters, while the variable...
In this paper we proposed multi-stage algorithm of small wind turbine power plant control when it supports maximum extracted power independently on traditional tip speed ratio using the wind speed. We made measurements of wind turbine parameters on urban and prairie territories, showed the necessity of power controlling the turbine, and vindicated the efficiency of control of small wind turbines in...
Nowadays, wind energy has become a very viable alternative solution to provide electrical energy. The development of wind energy is especially relevant for the case of isolated island in the south central provinces of Vietnam, where there is great potential for wind energy. For these isolated systems, the co-generation of diesel generators and wind turbines is a common configuration, but also poses...
This paper presents a mathematical model for the energy bidding problem of a virtual power plant (VPP) that participates in the regular electricity market and intraday demand response exchange (DRX) market considering different system uncertainties due to the intermittent renewable energy sources, retail customers' demand and electricity prices. By participating in the DRX market, the VPP can purchase...
The objective of this work is to study the performances of hybrid system comprising wind and photovoltaic sources with battery storage. The grid integration of the PV system is carried out via a three phase three level neutral point clamped (NPC) inverter. The interface of connection to the electrical supply network consisted of a continuous bus, filters RL, the regulation of the powers and the management...
This paper proposes a new method to determine the placement and sizing of diesel generators (DGs), photovoltaic solar panels (PV) and batteries for off-grid systems. In this work, our objective is to reduce the total system cost while fulfilling the load demand and mantaining the grid power quality, among other constraints. This is achieved by employing two particle swarm optimization (PSO) algorithms,...
As the battery technologies offer desirable characteristics at competitive cost, their applications have broadened significantly within the last decade covering all areas of power systems: from generation to transmission and distribution levels. In addition, battery storage technologies offer solutions to a range of network problems which are weak, long and thin, have large load variations, and have...
Supply deficiency is a common problem in the Philippines especially in places where connecting to the main grid is not possible, and implementing a standalone microgrid is the proposed solution. However, due to the intermittent output of some renewable distributed generations (DG), it is desired to have a modeling tool that can forecast possible outcomes and effects of these distributed resources...
Lack of quality electricity supply in the remote areas is one of the main hindering factors of global development. Many countries around the world are trying to utilize renewable energy sources for remote electrification including developing countries like Bangladesh. After the renowned Solar Home System (SHS) program, Bangladesh is now focusing on solar PV-diesel hybrid minigrid system to reach more...
In order to maximize the effectiveness of microgrids sophisticated control strategies are required. In this paper we investigate the performance of a model based power flow optimization controller for a grid connected microgrid consisting of; solar PV, battery storage, thermal generation, and a local electrical load. The controller is based on a mixed integer linear program (MILP) applied in a model...
The power demand of many islands in Southeast Asia is projected to increase rapidly over the next decades. Especially on island systems, where the installation of large-scale fossil-fired power plants is not appropriate, renewable energy sources could contribute to an independent, economic and sustainable power supply. To analyze the cost-effective integration of renewables on large islands, a power...
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