Design and analysis of robust rotor current controller for doubly fed induction generator

2013 ◽  
Author(s):  
Edin Golubovic ◽  
E. Emre Ozsoy ◽  
Metin Gokasan ◽  
Asif Sabanovic
Keyword(s):  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Current Controller ◽  
Doubly Fed

scholarly journals Doubly Fed Induction Generator Open Stator Synchronized Control during Unbalanced Grid Voltage Condition

Energies ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3155
Author(s):  
Akrama Khan ◽  
Xiao Ming Hu ◽  
Mohamed Azeem Khan ◽  
Paul Barendse
Keyword(s):  
Angle Measurement ◽  
Operating Conditions ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Induced Voltage ◽  
Structure Variation ◽  
Grid Voltage ◽  
Current Controller ◽  
Doubly Fed ◽  
Unbalanced Grid

In this paper, a systematic synchronization procedure is proposed for a doubly fed induction generator (DFIG) during unbalanced grid voltage conditions. The initial induced voltage at the open stator terminal is required to synchronize with the grid voltage in magnitude, frequency and phase. An open stator negative sequence rotor current controller is implemented with the conventional DFIG vector controller, which allows the induced stator voltage to become as unbalanced as the grid voltage, hence enabling a smooth connection. A brief comparison is provided for practical issues such as controller structure variation between DFIG open stator and normal operating conditions, and initial encoder rotor angle measurement offset. The procedure is validated experimentally on a 2.2 kW laboratory-scaled DFIG test bench.

scholarly journals Sensorless Control of Brushless Doubly Fed Induction Generator with Nonlinear Loads for Stand-Alone Power Generation Systems

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Wantai Liu ◽  
Weicai Xie ◽  
Yunong Lv ◽  
Zhan Zhou
Keyword(s):  
Sensorless Control ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Nonlinear Loads ◽  
Current Controller ◽  
Control Scheme ◽  
Harmonic Components ◽  
Doubly Fed ◽  
And Control ◽  
Power Generation Systems

This paper presents a sensorless control scheme for the stand-alone brushless doubly fed induction generator (BDFIG) feeding nonlinear loads. The fundamental and harmonic components of the distorted power winding (PW) voltage caused by the nonlinear loads are extracted and controlled separately. A rotor speed observer is employed to estimate the speed based on the PW voltage and control winding (CW) current without the need of any other machine parameters except for the number of pole pairs. Since the d- and q-axis references of the CW current from the PW voltage control loop contain both dc and ac components, which cannot be tracked easily by conventional PI controllers, a CW predictive current controller is designed to regulate the CW current. Finally, the performance of the proposed control scheme is verified by comprehensive experiments on a 35-kVA prototype BDFIG.

Command of a Doubly-Fed Induction Generator with a Backstepping Controller for a Wind Turbine Application

2017 ◽  
Vol 10 (1) ◽  
pp. 56 ◽  
Author(s):  
Zakaria Sabiri ◽  
Nadia Machkour ◽  
Nabila Rabbah ◽  
Mohammed Nahid ◽  
Elm'kaddem Kheddioui
Keyword(s):  
Wind Turbine ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Backstepping Controller ◽  
Doubly Fed
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