Journal ArticleDOI
Modeling and Simulation of Wind Energy Systems with Matrix and Multilevel Power Converters
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Modeling and simulation in Matlab/Simulink of wind energy systems with different topologies for the power converters: matrix converter and multilevel converter using pulse modulation by space vector modulation associated with sliding mode and power factor control at the output of the converters are concerned.Abstract:
This paper is concerned with modeling and simulation in Matlab/Simulink of wind energy systems with different topologies for the power converters: matrix converter and multilevel converter. We use pulse modulation by space vector modulation associated with sliding mode for controlling the converters, and we introduce power factor control at the output of the converters. Finally, we present the electric behavior for the power and the current at the input and at the output of the converters.read more
Citations
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Journal ArticleDOI
A Simplified Electro-Mechanical Model of a DFIG-based Wind Turbine for Primary Frequency Control Studies
Danny Ochoa,Sergio Martinez +1 more
TL;DR: In this paper, a simplified model of a wind turbine with Doubly-Fed Induction Generator is presented for frequency response in a wind power system, along with its validation with a detailed model.
Journal ArticleDOI
Mixed-Integer Nonlinear Programming Approach for Short-Term Hydro Scheduling
TL;DR: A novel mixed-integer nonlinear programming approach is proposed for optimizing power generation efficiency by considering not only the nonlinear dependence between power generation, water discharge and head, but also start-up costs for the hydro units and discontinuous operating regions, in order to obtain more realistic and feasible results.
Journal ArticleDOI
A control approach for the operation of DG units under variations of interfacing impedance in grid-connected mode
S. Kazem Hoseini,Edris Pouresmaeil,Edris Pouresmaeil,S. Hassan HosseinNia,Joao P. S. Catalao,Joao P. S. Catalao +5 more
TL;DR: In this paper, a control method based on fractional order active sliding mode is proposed to deal with the instability problem, which is less sensitive to variations of interfacing impedance, and the controller is designed in two phases as sliding and reaching phases to keep the control loop stable.
Journal ArticleDOI
Novel topology for DC-DC full-bridge unidirectional converter for renewable energies
TL;DR: A novel topology for DC-DC full-bridge isolated unidirectional converter, with an high frequency transformer, which includes a voltage elevator circuit at the input source and the switching technique is presented.
Journal ArticleDOI
A new method for characterization of small capacity wind turbines with permanent magnet synchronous generator: An experimental study.
TL;DR: This work presents a new and useful method to dimension wind turbines and control systems and to optimize their mechanical design by determining the principal curves for characterizing a small capacity wind turbine designed with a Permanent Magnet Synchronous Generator.
References
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Journal ArticleDOI
Power-Electronic Systems for the Grid Integration of Renewable Energy Sources: A Survey
Juan Manuel Campos Carrasco,Leopoldo G. Franquelo,Jan T. Bialasiewicz,Eduardo de Teresa Galván,R.C.P. Guisado,Ma.A.M. Prats,Jose I. Leon,Narciso Moreno-Alfonso +7 more
TL;DR: New trends in power electronics for the integration of wind and photovoltaic (PV) power generators are presented and a review of the appropriate storage-system technology used for the Integration of intermittent renewable energy sources is introduced.
Journal ArticleDOI
Integrating distributed generation into electric power systems: A review of drivers, challenges and opportunities
TL;DR: In this article, the authors present an overview of the key issues concerning the integration of distributed generation into electric power systems that are of most interest today and analyze the repercussions in transmission system operation and expansion that result from the connection of large amounts of DG of different energy conversion systems focusing on issues related with impacts in steady state operation.
Journal ArticleDOI
A review of power converter topologies for wind generators
TL;DR: In this paper, a comprehensive review of past and present converter topologies applicable to permanent magnet generators, induction generators, synchronous generators and doubly fed induction generators is presented and compared on the basis of topology, cost, efficiency, power consumption and control complexity.
Journal ArticleDOI
Participation of Doubly Fed Induction Wind Generators in System Frequency Regulation
R.G. de Almeida,João Peças Lopes +1 more
TL;DR: In this paper, the authors proposed a control scheme that allows doubly fed induction wind generators (DFIWG) to participate effectively in system frequency regulation. But, the control strategy defined at the wind generator to supply primary frequency regulation capability exploits a combination of control of the static converters and pitch control, adjusting the rotor speed and the active power according to the deloaded optimum power extraction curve.
Journal ArticleDOI
New concepts of instantaneous active and reactive powers in electrical systems with generic loads
TL;DR: In this paper, the instantaneous power theory was introduced for steady and transient states and for generic voltage and current waveforms, and an example showing how this theory can be used to design and control an active power filter is presented.
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