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One of the problems related to isolated microgrids with battery storage systems (BSS) and small wind turbines is related to power balance among generation, BSS, and loads, especially when the generation is higher than the consumption and the BSS is charged. This paper presents the development of a wind-powered battery charging system for isolated microgrids. The system implements Maximum Power Point...
The paper deals with implementation of maximum torque per ampere (MTPA) control strategy for a permanent magnet synchronous generator as a part of a wind energy conversion system (WESC). The variable speed wind turbines require appropriate control of the generator power, toque and speed in order to maximize the energy production under varying wind speed using appropriate MPPT algorithms. The power...
The challenges related to the monitoring, diagnosis and control of a wind farm are presented. First, Wireless Sensors Networks are investigated, from an Internet of Things point of view: the most used and recent routing protocols, and the methods which can secure the network against attacks. As the volume of collected information is very large and diverse, big data processing frameworks needed to...
One of the problems related to isolated microgrids with battery storage systems (BSS) and small wind turbines is related to power balance among generation, BSS, and loads, especially when the generation is higher than the consumption and the BSS is charged. This paper presents the development of a wind-powered battery charging system for isolated microgrids. The system implements Maximum Power Point...
In this paper, a type-3 Doubly Fed Asynchronous/ Induction Generator (DFAG/DFIG) wind turbine is considered for a dynamical study. The main blocks of the model taken from the literature are described and translated into a system of differential equations. By proving the possibility of eliminating the algebraic constraint, we are provided with good numerical possibilities to study wind turbine's dynamics...
The integration of renewable energy to the network still limited due to their irregular production. This paper was interested to the study of renewable energy source, which is represented by a wind turbine connected to a permanent magnet synchronous generator (PMSG), and a storage system represented by the battery and the super capacitor. The purpose of this article is to study, model and control...
The small wind turbines (SWTs) provide a lot of alternative power for electrical devices. In this study, the reasons for the weak efficiency of SWTs in charge applications of batteries are investigated and suggested structures to enhance the output power of the wind turbines are discussed. The study methodology is based on defining various study cases combining structural and operational parameters...
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...
In this paper, the generation and control turbulence in a wind tunnel, for design, analysis and testing of wind turbines is proposed. The designed wind turbines will be focused for domestic use. Modifications to the wind tunnel are made in order to generate the turbulences in the test chamber. Specifically, for the turbulence analysis, the reflective symmetry concept is used to group the different...
The paper presents a laboratory Wind Turbine System (WTS) which is added to existing Hybrid Power System (HPS) along with other main components like Solar Panel, Battery System, Solar Charge controller and Inverter. The WTS is operated with a Motor along with integrated Frequency converter. The complete system is designed to be monitored and controlled over internet from remote location under the...
This paper presents investigations in the design of wind turbine control systems to maximize the energy capture and their impact onto the grid. The modeling of the wind turbine is presented. Then three different speed control systems are detailed and evaluated through simulations carried out with Matlab Simulink TM. Power fluctuations on the distribution grid are then compared by considering the same...
The aim of this paper is to present a maximum power point tracking (MPPT) method for wind power systems. The control algorithm uses Back-stepping Control technique. This control strategy, based on electromagnetic torque, tracks the maximum power for different wind speeds. The control of our system is tested under fault condition by simulation. A few results are presented and discussed to prove simplicity,...
Conventional power management schemes for standalone wind systems typically use maximum power point tracking (MPPT) methods to extract maximum power from the wind even when the energy storage has reached its capacity. By doing so, the dummy load suffers from unnecessary stress when the load and energy storage element cannot absorb the excess power. This paper proposes an intelligent sensor-less fuzzy-logic...
The progressive spreading of Distributed Resources in the Low Voltage section is leading to a new paradigm previously unaddressed, since it is the less controlled section of the entire electric network. The inclusion of Information and Communication Technologies is a key factor towards its proper management. In addition, studies show that the progressive development of microgrids will lead to an improvement...
This paper discusses problems involved in the procedure for offshore installation of blades in wind turbines, due to wind loads. In general the high winds at sea provides for nearly optimal conditions for harvesting energy via wind turbines due to the often high wind speeds and low turbulence intensity. However, the very same features also call for great difficulties during installation of the wind...
This paper presents a control principle for a hybrid wind turbine-Fuel cell and supercapacitor system. Several techniques of control necessitate a linear mathematical model in order to get an inverse dynamic solution. However, in more complex systems the linearization is not sufficient to solve the problem. Therefore, a flatness control has been used in this study, which permits the entire description...
The manufacturers of small wind turbines generally provide basic parameters of their products, resulting in increased uncertainty upon evaluating the performance of small wind turbines. Therefore, the useful and accurate modeling of a small wind turbine is significant. This work discusses the modelling and control of a small wind turbine. The basic topology design and control principle for small wind...
This paper presents a versatile test bench for the investigation of the power electronics converter and its control for different wind energy conversion concepts. A three-level back-to-back converter connects a drive train consisting of an induction machine and a synchronous machine to the grid. 4-quadrant operation is feasible on both sides controlling the converter either in 2- or 3-level mode....
In this paper, the Pan Boolean PI control for use in wind power grid-connected inverter is studied. The inverter consists of six IGBT switches and six 2-pole tubes, power of 2MW, SPWM PI control algorithm based on the Pan-Boolean and has three Pan Boolean PI controllers which control the wind turbine rectifier output voltage, active power and reactive power grid respectively, based on MATLAB platform...
This paper analyses two running regimes of low speed twin stator windings induction generator (TSWIG), directly coupled to the shaft of the wind turbine. A single low cost (reduced power) active rectifier is used to deliver the energy to the dc grid for a large shaft speed variation. At the rated speed, the capacitor battery supplies the induction generator with entire reactive power reducing this...
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