A Rotor-Current-Based Slip Angle Estimator for Grid-Connected Doubly Fed Induction Generator Requiring the Stator Inductance Only

Ataji, Ahmad Bashar; Miura, Yushi; Ise, Toshifumi; Tanaka, Hiroki

doi:10.1109/tpel.2016.2598441

Cited by 14 publications

(2 citation statements)

References 40 publications

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“…The DFIG rotor windings are connected to the electrical grid via rotor and grid side converters (RSC and GSC) and RL filter, whereas the stator windings are immediately related to the electrical grid as illustrated by Figure 1. In the last decade, many researchers giving much focus and interest to the field of sensorless control of DFIG-based wind turbine (DFIG-WT) [4][5][6][7]. In this control strategy, the DFIG-WT systems operate without the need to use the speed sensor, which lowers the whole system cost and enhance its overall reliability by minimizing the number of components that are susceptible to failure.…”

Section: Introductionmentioning

confidence: 99%

An Adaptive Nonlinear Sensorless Controller of Doubly Fed Induction Generator Driven By Wind Turbine

Ourhdir¹,

Rachidi²

2020

Adv. sci. technol. eng. syst. j.

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In this study, an adaptive nonlinear sensorless controller for doubly fed induction generator (DFIG) driven by a wind turbine is proposed. The aim is to maximize the extracted power by tracking the wind turbine optimal torque-speed characteristic without the need for rotor speed measurement. This controller ensures a satisfactory tracking of both stator flux and rotor speed. It considers the detailed model of DFIG in an arbitrary (d-q) rotating frame without any simplifying assumption. An observer provides the rotor speed estimation incorporated in the control loop. To guarantee the system stability under parametric uncertainties like the aerodynamic torque and the rotor winding resistance, which harms the efficiency and the robustness of the controller, update laws are established to estimate the uncertain parameters. Lyapunov's theory is used to prove the system stability. The proposed adaptive sensorless controller validity is demonstrated by simulation in Matlab/Simulink environment. The robustness of the controller is confirmed by the comparison between the same controller with and without adaptation.

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Section: Introductionmentioning

confidence: 99%

An Adaptive Nonlinear Sensorless Controller of Doubly Fed Induction Generator Driven By Wind Turbine

Ourhdir¹,

Rachidi²

2020

Adv. sci. technol. eng. syst. j.

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“…All these techniques listed in [1–20] have the similar limitations of harvesting limited power during high wind speed situations. Also, the proposed rotor speed and position estimation algorithms [12–18, 21, 22] are directly sensitive to magnetising inductance variations of DFIG which affects the stability and reliability of the controller.…”

Section: Introductionmentioning

confidence: 99%

Integrated DFIG–SCIG‐based wind energy conversion system equipped with improved power generation capability

Parida

Chatterjee

2017

IET Generation, Transmission & Distribution

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The grid‐connected doubly fed induction generator (DFIG)‐based wind energy conversion systems (WECSs) draws special attention as a potential renewable energy source in recent past. In this study, an integrated WECS equipped with improved active power generation capability has been proposed. The said generation scheme will harvest an enhanced power in the supersynchronous operating region which otherwise bypassed through pitch control process. The proposed hybrid generation scheme can be operated virtually much beyond the existing specified slip limit with the help of an integrated squirrel cage induction generator (SCIG). A solar photovoltaic generation system has also been augmented with the proposed scheme to utilise the facility available for WECS to further enhance the active power generation over subsynchronous operating region. The proposed scheme has been validated through proper simulations and experiments on a practical DFIG of 7.5 kW and an SCIG of 2.5 kW capacity which produced satisfactory results.

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Phase Current Reconstruction for the Grid-Side Converter With Four-Switch Three-Phase Topology in a DFIG-WT

Liu

et al. 2018

IEEE Access

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A Rotor-Current-Based Slip Angle Estimator for Grid-Connected Doubly Fed Induction Generator Requiring the Stator Inductance Only

Cited by 14 publications

References 40 publications

An Adaptive Nonlinear Sensorless Controller of Doubly Fed Induction Generator Driven By Wind Turbine

An Adaptive Nonlinear Sensorless Controller of Doubly Fed Induction Generator Driven By Wind Turbine

Integrated DFIG–SCIG‐based wind energy conversion system equipped with improved power generation capability

Phase Current Reconstruction for the Grid-Side Converter With Four-Switch Three-Phase Topology in a DFIG-WT

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