High efficiency control strategy in a wind energy conversion system with doubly fed induction generator

Karakasis, Nektarios; Mademlis, Christos

doi:10.1016/j.renene.2018.03.020

Cited by 26 publications

(16 citation statements)

References 18 publications

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“…In this model, the wind speed V w represents the mean value of the upstream wind and A is the area swept by the turbine blades. The function C p (λ, β) in (12) has been modelled by using the equation proposed in [3].…”

Section: Dfig Electrical Model With An Lc Filtermentioning

confidence: 99%

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Developing a grid-connected DFIG strategy for the integration of wind power with harmonic current mitigation

Mahieddine

Zarour

Louze

et al. 2019

IJECE

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<p>The aim of this paper is to present a study of the efficiency of the electrical part of a wind generation system. Two back-to-back PWM voltage-fed inverters connected between the stator and the rotor are used to allow bidirectional power flow. The second inverter grid side, has a role of a power active filter, to eliminate the harmonic generated by the non linear load, in the same time gives an active and reactive power needed by the rotor of DFIG. The harmonics of switching frequency in the current stator, pose a major problem in the moment where commutations in the diode bridge, to solve this problem, we introduce a small-sized passive LC filter for the purpose of eliminating high-frequency shaft voltage and grid current from a DFIG driven by a voltage-source pulse width-modulation rotor inverter controlled with SVM. The control theory is discussed, and the controller implementation is described. Design criteria are also given. The results of simulation tests show excellent static and dynamic performances.</p>

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Section: Dfig Electrical Model With An Lc Filtermentioning

confidence: 99%

“…and is considered a lower cost, proven technology solution. DFIGs have long been considered as a good choice for variable speed generation systems [11], [12].…”

Section: Introductionmentioning

confidence: 99%

Developing a grid-connected DFIG strategy for the integration of wind power with harmonic current mitigation

Mahieddine

Zarour

Louze

et al. 2019

IJECE

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show abstract

“…Consequently, more advanced control methods (e.g. synchronized switching harvesting on inductor and switching controller) have been proposed to solve this critical problem [30,31]. A simple and effective control strategy is time-delayed feedback control, which has been widely used to control bifurcation, chaos, resonance, and birhythmicity [32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

“…A simple and effective control strategy is time-delayed feedback control, which has been widely used to control bifurcation, chaos, resonance, and birhythmicity [32][33][34][35][36]. In addition, as an important renewable energy source, wind energy has received extensive attention from scholars [2,31]. In this paper, we will focus on the multiple attractors wind-induced vibration energy harvesting system [2] and unveil the optimization effect of time-delayed feedback control on this system with random excitation.…”

Section: Introductionmentioning

confidence: 99%

Time‐Delayed Feedback Control in the Multiple Attractors Wind‐Induced Vibration Energy Harvesting System

et al. 2019

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This paper proposes a time-delayed feedback control to improve collection performance of the multiple attractors wind-induced vibration energy harvester system. By employing a conversion mechanism for decoupling the electromechanical equations and the stochastic averaging method, the roles of the time-delayed feedback and the system parameters have been systematically examined. In the deterministic case, the time delay can control efficiently the birhythmic properties; thus one can realize a dividing line in the parameter plane that separates the space into two subspaces of generically distinct nature. Further, it is exclusively demonstrated that implementing time-delayed feedback control serves as a very simple but highly efficient scheme to increase the harvested energy from vibrations in presence of noise disturbances. Additionally, the time constant ratio and coupling coefficients can also be properly tuned to optimize power generation.

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“…region, small capability of power electronic devices and full decoupled control of reactive and active power [6,7]. However, a gearbox is required for coupling the generator to the WT in the WECS based on DFIG, which increases failure rate and maintenance expenses [8][9][10]. Recently, permanent magnet synchronous generators (PMSGs) based WECSs are without gearboxes, and possess merits e.g., self-excitation, fast dynamic response, low noise, and high efficiency [11][12][13][14][15][16][17].…”

mentioning

confidence: 99%

Overall Adaptive Controller Design of PMSG Under Whole Wind Speed Range: A Perturbation Compensation Based Approach

et al. 2019

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This paper proposes an adaptive overall control strategy of the permanent magnet synchronous generator-based wind energy conversion system (WECS) in the whole wind speed range. For the machine side, the maximum power point tracking (MPPT) operation is realized by stator current and mechanical rotation speed control under below-rated wind speeds. Under above-rated wind speeds, the extracted wind power is limited via pitch control. For the grid side, the reactive and active power injected into grid is regulated by DC-Link voltage and grid current control loop. In addition, under grid voltage dips, the pitch control is employed for limiting grid current and maintaining the DC-Link voltage around its rated value. The fault ride-through capability (FRTC) can be enhanced. The overall control strategy is based on perturbation estimation technique. A designed observer is used for estimating the perturbation term including all system nonlinearities, uncertainties and disturbances, so as to compensate the real perturbation. Then, an adaptive control for the original nonlinear system can be realized. The effectiveness of the proposed overall control strategy is verified by applying the strategy to a 2-MW WECS in MATLAB/Simulink. The results show that, compared with the feedback linearizing control (FLC) strategy and conventional vector control (VC) strategy, the proposed perturbation observer based adaptive control (PO-AC) strategy realizes the control objectives without knowing full state information and accurate system model, and improves the robustness of the WECS parameter uncertainties and FRTC.

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High efficiency control strategy in a wind energy conversion system with doubly fed induction generator

Cited by 26 publications

References 18 publications

Developing a grid-connected DFIG strategy for the integration of wind power with harmonic current mitigation

Developing a grid-connected DFIG strategy for the integration of wind power with harmonic current mitigation

Time‐Delayed Feedback Control in the Multiple Attractors Wind‐Induced Vibration Energy Harvesting System

Overall Adaptive Controller Design of PMSG Under Whole Wind Speed Range: A Perturbation Compensation Based Approach

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