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In this paper, reluctance synchronous machines are designed and optimised to operate in the 5 MW power range for the implementation as wind generators. It is shown, when assuming no rotor deformation, that reluctance synchronous generators can be comparatively designed to operate in this power range with power factors higher than 0.8 achieved. In order to further improve the machine performance, an...
this article explains a methodology for optimal sizing of hybrid PV/Wind battery system. The methodology is based on Loss of Power Supply Probability (LPSP) concept and Annual System Cost (ASC). First the Annual System Cost is optimized using Backtracking search algorithm. Afterward the influence of the load profile on the LPSP is simulated.
Demand Side Management (DSM) will play a large role in creating a pathway to a low carbon future. Microgrids are an ideal test bed for DSM within the Smart Grid (SG) framework, allowing for increased integration of distributed generation (DG), here focused on distributed Renewable Energy Sources (RESs). Existing work uses conservative estimates to model the stochastic nature of RESs, resulting in...
A standalone microgrid with renewable and regular power resources along with storage system play an important role in remote areas in order to solve power supply problems. In this research, an optimal energy management of a standalone microgrid under different operational modes is studied. The objective of the optimization model is to improve energy utilization efficiency; reduce fuel cost and gas...
The objective of this paper is to optimize direct drive permanent magnet synchronous generators for offshore direct drive wind turbines in order to reduce the cost of energy. A 6 MW wind turbine design is assumed and parametric electromagnetic and structural generator models are introduced for a surface-mounted magnet generator topology (using magnets with high ${\rm{BH}}_{{\rm{max}}}$) and a flux-concentrating...
In this proposed paper, the system aims that in wind power generation a powerful optimization technique can profitably maximize energy extraction at given wind farms. Maximizing the extraction of wind can be achieved with the Particle Swarm Optimization (PSO). Maximizing wind energy extraction of PSO applied to common Constant frequency (CF) set-up instead of using Variable frequency (VF) set-up....
Intermittent nature of renewable energy sources (RESs) greatly influences power generation in a RESs interfaced generating plant. So, in addition to load variations, RESs have an adverse effect on system frequency in such plant. This paper presents a study on load frequency control (LFC) performance in a hybrid power system, where the RESs such as solar photovoltaic (SPV), wind turbine generator (WTG),...
Large offshore direct-drive wind turbines of 10-MW power levels are being extensively proposed and studied because of a reduced cost of energy. Conventional permanent magnet generators currently dominating the direct-drive wind turbine market are still under consideration for such large wind turbines. In the meantime, superconducting generators (SCSGs) have been of particular interest to become a...
Intermittency of renewable resources represents a major impediment that restricts their integration in microgrids. This paper presents an approach that can contribute to solve this issue by the prediction of near-term future renewable power production, mainly wind power and photovoltaic power, based on weather forecasts. After knowing the future renewable power production, the electric grid manager...
In order to take full advantages from renewable energy sources; we propose combination between a wind power source and a pumped storage hydro power station taking into account electricity market framework. A scenario is proposed which defines programmed power demand and energy price. An operation optimization scheduling strategy is integrated. This strategy of scheduling requires in priority wind...
In this research, ant colony algorithm for proportional plus integral (PI) optimal tuning to design load frequency controllers is introduced. A mathematical model of a network with DFIG based wind turbine in two area frequency control is developed. Time domain simulations of the various interconnected power system areas subjected to major disturbances are investigated. A method to enhance the system...
In this paper the integration of Distributed Generation (DG) in radial distribution system is investigated by computing the optimal site and size of DG to be placed using Particle Swarm Optimization (PSO). The Type-I and Type-II DGs, which are generating real and reactive power respectively, are considered for placement. The investigations are carried out on IEEE 33-bus and 69-bus radial distribution...
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...
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...
The grid integration of the Doubly Fed Induction Generator (DFIG) based Wind Energy Conversion System (WECS) with the maximum energy extraction out of it is the main focus of the research now a days. The controllers employed for such controls need to be coordinated and their parameters has to be optimized. It is a very cumbersome job to find the optimal values of the control parameters of a number...
Renewable Energy Systems are becoming a common choice for small communities in Canada where the cost of diesel fuel is high. In this paper, a PV/Wind hybrid system is being considered for supplying an electrical load of a Mobile office which is proposed and presented along with relevant statistics. An optimal configuration of different renewable energy system is being obtained. The optimal configuration...
In remote sites (north Canada, islands …); diesel generators are used to produce electricity. This method is relatively inefficient, very expensive and responsible for the emission of large amounts of greenhouse gases. The development and use of a wind-solar-diesel-battery hybrid system will eliminate the main barriers to the deployment of renewable energy in remote locations and decrease production...
This paper proposes biogeography based optimization (BBO) algorithm and genetic algorithm (GA) to solve the unit commitment problem incorporating the wind energy (UCIW) uncertainty. Unit commitment (UC) problem is mainly finding the minimum cost schedule to a set of generators by turning each one either on or off over a given time horizon to meet the demand load and satisfy different operational constraints...
This paper proposes a future economic dispatch problem for smart grid network (SGED) at peak time using demand side management (DSM) methods. The aim is to model the SGED problem at peak hours and solve it by finding an economic and reliable method of allocating the load on available generation units and choose the least expensive area or consumers to apply the DSM measures while satisfying the problem...
During this time, the main source of electrical energy derived from fossil energy sources, which is at present the number continues to decrease and become more limited. Therefore, it is necessary to find alternative sources of energy produced by natural processes so it will not run out or quickly reversed if managed properly. In other words, alternative energy sources must be a renewable energy. Some...
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