Modeling of a variable speed wind turbine with a Permanent Magnet Synchronous Generator

Rolán, Alejandro; Luna, Álvaro; Vázquez, G.; Aguilar, Daniel; Azevedo, Gustavo M. S.

doi:10.1109/isie.2009.5218120

Cited by 207 publications

(120 citation statements)

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“…The function of generator is to convert the mechanical energy of turbine to electrical energy. A rectifier is used to convert the AC voltage to DC and a battery is connected in such a way that it can charged both the way i.e a bidirectional converter is used to charged the battery [17].…”

Section: Wind Energy Systemmentioning

confidence: 99%

Power Quality Improvement by Solar Photo-voltaic / Wind Energy Integrated System Using Unified Power Quality Conditioner

Samal¹,

Hota²

2017

IJPEDS

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The real problems in diminution of power quality occurs due to the rapid growth of nonlinear load are leads to sudden decrease of source voltage for a few seconds i.e sag, swell, harmonics in source and load current, voltage unbalance etc. All these problems can be compensated by using Unified Power Quality Controller (UPQC) and the operation of UPQC depends upon the available voltage across capacitor present in dc link. If the capacitor voltage is maintained constant then it gives satisfactory performance. The proposed research is basically on designing of Photo Voltaic (PV) /Wind energy fed to the dc link capacitor of UPQC so as to maintain proper voltage across it and operate the UPQC for power quality analysis. The said model is simulated in Matlab and results are verified by using FFT analysis.The proposed PV/ Wind energy-UPQC is design in Matlab simulation for reduction of voltage sag, swell, interruption of voltage, harmonics in load current and compensation of active and reactive power. Keyword:Conditioner Harmonics Power quality Solar PV Unified power quality Wind energy Copyright ©2017 Institute of Advanced Engineering and Science.All rights reserved. Corresponding Author:Sarita Samal, Department of Electrical Engineering, Veer Surendra Sai University of Technology, Burla, odisha, India Email: saritaruchy@gmail.com INTRODUCTIONThe use of electricity is increasing very rapidly so the necessity of renewable energy based source is required for interconnection to the distribution network. The main drawbacks of the renewable sources are the power generation is not continuous and it is season based. To overcome these disadvantages numbers of renewable sources are interconnected [1], [2]. The compensation principle and different control strategies of the UPQC in detail and performance of UPQC is examined by considering, a diode rectifier feeding an RL load (non linear load) that acts as a source of harmonics [3]. The theory, modeling and application of a unified power quality conditioner has been described by [4]. The coordinated and integrated control of solar PV generators with the maximum power point tracking (MPPT) control and battery storage control to provide voltage, frequency (V-f) and P-Q control, respectively, with PV generator and battery storage support to an islanded Microgrid [5]. Femia et al [6] have developed a scheme for maximum power point tracking (MPPT) of solar PV system using perturb and observe method. Gaeid et al [7] have design a unified power quality conditioner (UPQC) including a series and a shunt active power filter (APF) to compensate harmonics in both the distorted supply voltage and nonlinear load current. In the series APF control scheme, a proportional-integral (PI) controller, meanwhile a PI controller and are designed in the shunt APF control scheme to relieve harmonic currents produced by nonlinear loads. Basu et al [8] have made a comparative evaluation of two models of UPQC for suitable interface to enhance power quality. Montero et al [9] have developed number of method...

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Section: Wind Energy Systemmentioning

confidence: 99%

Power Quality Improvement by Solar Photo-voltaic / Wind Energy Integrated System Using Unified Power Quality Conditioner

Samal¹,

Hota²

2017

IJPEDS

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“…In nature, the wind is a random variable, consisting of components such as base speed, gust, ramps and background noise [5]. In this study, the model in (1), a Fourier series representation, is considered to represent such behaviours of the wind.…”

Section: A Wind Speedmentioning

confidence: 99%

“…The electromagnetic torque developed in the PMSG is given as [5], (14) p is the number of poles of the PMSG. …”

Section: Pmsg Modelmentioning

confidence: 99%

“…Firstly, they offer the opportunity to operate the machine at maximum power for various wind speeds, and secondly, they have less mechanical stress on their shafts. These days, the popular variable-speed wind turbines employed in large-scale wind parks are DFIG wind turbines [5]. Nevertheless, recently, direct-drive PMSG wind turbines are gaining momentum among researchers, engineers and turbine manufacturers for their high efficiency, low power loss and smaller size [6 -11].…”

Section: Introductionmentioning

confidence: 99%

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Damping Local Oscillations of a Direct- Drive PMSG Wind Turbine

Legesse¹,

Saha²,

Carpanen³

2017

IJET

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Abstract-Damping local oscillations is vital in the operation of a direct-drive permanent magnet synchronous generator wind turbine as well as its integration into a grid. Currently, these oscillations are controlled by proportional-integral controllers. This paper proposes the inclusion of virtual resistors to improve the performance of the wind turbine further. Simulation results show that virtual resistors, connected in series to stator windings, have a positive impact on the damping of local oscillations. They significantly reduce the rise and settling times of the rotor speed, electromagnetic torque, active power and reactive power and increase the corresponding damping ratios. In contrast, the ones, connected in parallel to stator windings, have a negative impact on the damping of local oscillations. This indicates that an appropriate selection and connection of virtual resistors improves the dynamic and small-signal performances of a PMSG wind turbine.Keyword-Damping local oscillations, permanent magnet synchronous generator, wind turbine, dynamic performance, small-signal stability, virtual resistors I. INTRODUCTION For the past two centuries, rapidly growing populations and modernization trends have accelerated the demand for energy. Today, the world heavily depends on fossil fuels such as oil, coal, and natural gas for its increasing energy requirements. However, this fossil-fuelled economy is facing challenges including depletion of reserves, global warming, security concerns, and rising cost [1]. In tackling these challenges, much attention is given to the development of renewable energy, among which harnessing wind energy is the cheapest alternative [2,3].Three types of wind energy technologies-squirrel-cage induction generator (SCIG), doubly fed induction generator (DFIG) and permanent magnet synchronous generator (PMSG) wind turbines-are widely adopted in the wind industry. Compared to SCIG, DFIG and PMSG are popular for two reasons [4]. Firstly, they offer the opportunity to operate the machine at maximum power for various wind speeds, and secondly, they have less mechanical stress on their shafts. These days, the popular variable-speed wind turbines employed in large-scale wind parks are DFIG wind turbines [5]. Nevertheless, recently, direct-drive PMSG wind turbines are gaining momentum among researchers, engineers and turbine manufacturers for their high efficiency, low power loss and smaller size [6 -11].The integration of wind power into grids is rapidly growing. In some European countries, the level of penetration has reached as high as 21% [12]. However, due to this high penetration and the intermittent nature of the wind, there are concerns such as generation reserve, power system stability and reliability [13]. Furthermore, wind turbines themselves have stability problems, which surely challenge transmission system operators. In large grids, the ability of both local and system-wide power system oscillation damping plays a crucial role [14].A range of efforts have been made to damp local ...

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“…Rolan et al [1] analyzed the advantages of the directdriven wind turbine , established the wind speed model, the aerodynamic model and the generator model. These model were simulated and analyzed, the results show that these model can reflect the operating characteristics of the direct-driven wind turbine in a certain extent.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Analysis of Direct-driven Wind Turbine

Ren

et al. 2015

Int. J. Onl. Eng.

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Abstract-Direct-driven wind turbine has become one of the mainstream technologies in wind power generation. Studying the system structure and the control technology of direct-driven wind turbine is the basis for optimization operation of direct-driven wind turbine. The system structure of direct-driven wind turbines is analyzed and the main subsystem mathematical model of direct-driven wind turbine are established, including wind speed model, aerodynamic model, generator model, and grid side converter model. The overall model of direct-driven wind turbine is established by integration of each subsystem mathematical model. The overall model of the direct-driven wind turbine is modeled and analyzed, and the simulation results show that the direct-driven wind turbine model can accurately reflect the dynamic characteristics of the directdriven wind turbine operation process.

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Modeling of a variable speed wind turbine with a Permanent Magnet Synchronous Generator

Cited by 207 publications

References 10 publications

Power Quality Improvement by Solar Photo-voltaic / Wind Energy Integrated System Using Unified Power Quality Conditioner

Power Quality Improvement by Solar Photo-voltaic / Wind Energy Integrated System Using Unified Power Quality Conditioner

Damping Local Oscillations of a Direct- Drive PMSG Wind Turbine

Simulation and Analysis of Direct-driven Wind Turbine

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