scholarly journals A Pitch Control Malfunction Analysis for Wind Turbines with Permanent Magnet Synchronous Generator and Full-power Converters: Proportional Integral Versus Fractional-order Controllers

2010 ◽  
Vol 38 (4) ◽  
pp. 387-406 ◽  
Author(s):  
R. Melício ◽  
V. M. F. Mendes ◽  
J. P. S. Catalão
Keyword(s):  
Permanent Magnet ◽  
Fractional Order ◽  
Wind Turbines ◽  
Power Converters ◽  
Synchronous Generator ◽  
Permanent Magnet Synchronous Generator ◽  
Pitch Control ◽  
Proportional Integral ◽  
Full Power

scholarly journals MPPT control design for variable speed wind turbine

2020 ◽  
Vol 10 (5) ◽  
pp. 4604
Author(s):  
Meriem Otmane Rachedi ◽  
Mohammed Larbi Saidi ◽  
Fayçel Arbaoui
Keyword(s):  
Wind Turbine ◽  
Permanent Magnet ◽  
Fractional Order ◽  
Synchronous Generator ◽  
Maximum Power ◽  
Variable Speed ◽  
Permanent Magnet Synchronous Generator ◽  
Power Extraction ◽  
Proportional Integral ◽  
Variable Speed Wind Turbine

Variable speed wind turbine systems (VSWT’s) have been in receipt of extensive attention among the various renewable energy systems. The present paper focuses on fuzzy fractional order proportional-integral (FFOPI) control segment for variable speed wind turbine (VSWT) directly driving permanent magnet synchronous generator (PMSG). The main objective of this study is to reach maximum power point tracking (MPPT) through combination of advanced control based on FFOPI control applied to generator side converter (turbine and PMSG). The basic idea of the FFOPI controller is to implement a fuzzy logic controller (FLC) in cascade with Fractional Order Proportional Integral controller (FOPI). A comparative study with FOPI and classical PI control schemes is made. The traditional PI controller cannot deliver a sufficiently great performance for the VSWT. However, the results found that the proposed approach (FFOPI) is more effective and feasible for controlling the permanent magnet synchronous generator to mantain maximum power extraction. The validation of results has been performed through simulation using Matlab/Simulink®.

Chaos Suppression in Fractional order Permanent Magnet Synchronous Generator in Wind Turbine Systems

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Karthikeyan Rajagopal ◽  
Anitha Karthikeyan ◽  
Prakash Duraisamy
Keyword(s):  
Permanent Magnet ◽  
Fractional Order ◽  
Dynamic Properties ◽  
Synchronous Generator ◽  
Adaptive Controller ◽  
Control Technique ◽  
Order Model ◽  
Permanent Magnet Synchronous Generator ◽  
Chaos Suppression ◽  
Fractional Order Model

AbstractIn this paper we investigate the control of three-dimensional non-autonomous fractional-order uncertain model of a permanent magnet synchronous generator (PMSG) via a adaptive control technique. We derive a dimensionless fractional order model of the PMSM from the integer order presented in the literatures. Various dynamic properties of the fractional order model like eigen values, Lyapunov exponents, bifurcation and bicoherence are investigated. The system chaotic behavior for various orders of fractional calculus are presented. An adaptive controller is derived to suppress the chaotic oscillations of the fractional order model. As the direct Lyapunov stability analysis of the robust controller is difficult for a fractional order first derivative, we have derived a new lemma to analyze the stability of the system. Numerical simulations of the proposed chaos suppression methodology are given to prove the analytical results derived through which we show that for the derived adaptive controller and the parameter update law, the origin of the system for any bounded initial conditions is asymptotically stable.

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