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The objective of this paper is to improve the frequency regulation of an islanded microgrid system consisting of non-battery-backed photovoltaic (PV) systems. Operating the PV system in limited power point tracking (LPPT) mode gives provision for the application of droop control on the PV system active power, which in turn enhances the frequency regulation of the microgrid. The LPPT is a control technique...
These days the consumption of fossil fuel is increasing substantially and the major proportion of it is consumed by transportation sector. So, electrification of vehicles is one way to minimize their dependence on fossil fuels which also plays a significant role in reducing the greenhouse effect. However, vehicles transformation enhances the electric load which has a significant impact on current...
Cellular base stations (BSs) are increasingly becoming equipped with renewable energy generators to reduce operational expenditures and carbon footprint of wireless communications. Moreover, advancements in the traditional electricity grid allow two-way power flow and metering that enable the integration of distributed renewable energy generators at BS sites into a microgrid. In this paper, we develop...
This paper investigates a multi-cell system powered by a micro-grid (MG), where the conventional generators (CGs), energy storage devices (ESDs) and renewable energy generators (REGs) are scheduled to supply electricity to base stations (BSs) at different prices respectively. Under this energy schedule model, we study the efficiency aspect of the MG-powered multi-cell systems from the economical perspective,...
This paper used plug-in electric vehicle (EVs) for frequency control in an isolated small smart power system, the main power source of this small system is a diesel generator, in additionally, a photovoltaic (PV) renewable source is considered. Model predictive control method (MPC) is used as a robust area controller to solve the problems of load change and system uncertainties. A smart vehicles-to-grid...
Operational planning of a small and isolated energy system having a large wind farm and a battery storage device is studied. Operational planning decisions are to be made in two time-scales: daily unit commitment (UC) and hourly dispatch. For this problem, Markov decision process (MDP) and stochastic programming (SP) are combined to account for both daily and hourly changes of wind uncertainty. Two...
This paper studies the problem of optimally placing energy storage devices in power networks. We explicitly model capital and installation costs of storage devices because these fixed costs account for the largest cost component in most grid-scale storage projects. Finding an optimal placement strategy is a challenging task due to (i) the discrete nature of such placement problems, and (ii) the spatial...
Diesel generators are typically used in remote Australian electricity networks to generate power for its consumers. Solar PV systems are one of the most common renewable resources due to their gradual technical advancement, decreasing cost and wide application. This study aims to design and model a PV-Diesel power system for a generic remote town in Australia. The electricity generation philosophy...
A method for optimal sizing of hybrid system consisting of aPhotovoltaic (PV) panel, diesel generator, Battery banks and load is considered in this paper. To this end a novel approach is proposed. More precisely a methodology for the design and simulation of the behavior of Hybrid system PV-Diesel-Battery banks to electrify an isolated rural site in southern Algeria Illizi (djanet). This methodology...
With the expected surge of Electric Vehicles (EV) in the market in the near future, a threat to the grid is anticipated. Introducing EVs in the grid serves as an additional load thus arising the need for increased generation which increases the total fuel cost. An optimization algorithm has been proposed to minimize the total fuel cost by performing Economic Load Dispatch (ELD) of the committed generators...
In this study, an optimized design of a PV-diesel hybrid renewable energy system has been proposed to electrify remote locations in the eastern part of Malaysia, which are located far away from the grid. First, a brief review of energy status in the eastern part of Malaysia has been conducted, and then an illustration of the various electrification plans for remote locations in Sarawak has also been...
Presently world facing crisis of power all over the world. For a comfort survival, mankind has to adopt different methodologies to over come this shortage and instability of different parameters in power system. Here, the most concern parameters are voltage and frequency variation. Moreover, voltage variated is a big issue in power system particularly distribution end voltage. This paper introduces...
Microgrids define a new paradigm in the smart grid concept for distributed energy resources integration. As one of the key enabling components of the smart grid, microgrids can operate independently of or in parallel with the utility grid. Since most of the distributed resources are renewable energy based, the dynamics of the system change due to their unpredictable and intermittent nature. Accordingly,...
Non-consistency of energy availability from Renewable Energy Sources needs estimation and scheduling in advance so that the other certain sources of energy like fuel cells, diesel generators, storage devices etc., can be scheduled appropriately to maintain load-generation balance in real time. Evolutionary program techniques are proving handy and reliable in the process. This article uses an Artificial...
The higher penetration of Non Dispatchable Energy Sources inspite of its many obvious benefits may cause system stability into jeopardize. Also its ability to increase system reliability needs to be examined due to its inherent intermittency. This problem can be overcome by using a mix of renewable energy sources and also the use of storage units. A Microgrid consisting of wind and PV connected to...
This paper presents the sliding reinforced competitive learning (SR-CL) algorithm for power quality improvement and its implementation for voltage and frequency regulation of diesel engine driven standalone single phase self excited induction generator (SEIG) using digital signal processor (DSP) and a two leg voltage source converter (VSC) bridge. The proposed control algorithm iterates continuously...
This work is associated with the renewable energy based microgrid for a standalone operation. The places where the renewable energy sources such as wind, solar, hydro etc. are in abundance can be used to generate electricity by developing microgrid (MG) such as wind- hydro MG. A synchronous reluctance generator (SyRG) is used as a constant speed hydro turbine and a permanent magnet brushless DC generator...
The world is developing at a faster pace, and so is the threat of pollution. With an impending energy crisis on the horizon and with our non-renewable fuel resources getting exhausted, there is an immediate need for discovering ways that can utilize waste heat and other available energy-forms for production of electricity. In order to satisfy the increasing energy-demands, there is a need to discover...
This paper deals with a standalone microgrid system using a generalized filter based control technique for VF (Voltage and Frequency) control and improving power quality. This microgrid system consists of a SPV (Solar Photovoltaic) array, diesel driven self-excited induction generator (SEIG) and a storage system (Lead-Acid Battery). This control approach is used for generating the reference source...
Today recent developments in renewable technology such as wind and photovoltaic systems encourage people to generate electricity with low investment costs. In this manner, this may result in partial reduction in power demand hence import of primary sources may gradually decline as well as foreign dependence on energy. Furthermore this lets decrease power losses in transmission lines by reducing power...
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