Controller Parameters Optimization of PWM Converter Based DFIG

2014 ◽  
Vol 672-674 ◽  
pp. 1012-1015
Author(s):  
He Zhu ◽  
Da Tian Xu ◽  
Hao Ran Zhao
Keyword(s):  
Control Strategy ◽  
Simplex Algorithm ◽  
Parameters Optimization ◽  
Pwm Converter ◽  
Stator Flux ◽  
Grid Side ◽  
Rotor Side Converter ◽  
Grid Side Converter ◽  
And Control ◽  
The Mathematical Model

Based on the mathematical model of the PWM converter, control strategy of the grid-side converter directed by the grid voltage and control strategy of the rotor-side converter directed by the stator flux were established combining the vector control theory. The method using the nonlinear simplex algorithm to optimize the PI control parameters of the DFIG unit was first proposed, optimization results proved that this method had good practicality and robustness.

Grid Connection Control of DFIG Wind Power Generation

2013 ◽  
Vol 373-375 ◽  
pp. 1287-1293
Author(s):  
Jian Wei Liang ◽  
Tao Wang
Keyword(s):  
Control Strategy ◽  
Reactive Power ◽  
Basic Structure ◽  
Grid Connection ◽  
Stator Flux ◽  
Set Up ◽  
Grid Side ◽  
Rotor Side Converter ◽  
Stator Flux Oriented ◽  
And Control

The paper is based on PSCAD/EMTDC. The basic structure and operation principle of DFIG are analyzed and the mathematical model of DFIG is established, based on which the control system of rotor-side and grid-side converters is set up. The stator flux-oriented vector control is adopted for rotor-side converter. The no-load grid connection is realized before cutting in and control strategy is switched after grid connection successfully. DFIG can meet grid connection condition quickly with the control strategy and is connected to grid with no current shock nearly. The output of active and reactive power can be regulated respectively.

Double-Fed Speed Control System for Wound-Rotor Induction Motor Based on SVPWM Control Technology

2012 ◽  
Vol 220-223 ◽  
pp. 469-472
Author(s):  
Mei Hua Zhao ◽  
Yi Ruan ◽  
Xiao Xin Wu
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Induction Motor ◽  
Control Strategy ◽  
High Performance ◽  
Pwm Converter ◽  
Loop Control ◽  
Grid Side ◽  
Close Loop Control ◽  
The Mathematical Model

A high performance speed-regulating control system with high power factor and small harmonic pollution was realized. Firstly, the mathematical model of the grid side PWM converter was derived, and then voltage, current double close-loop control strategy based on a grid voltage orientation was proposed. Secondly, the mathematical model of wound-rotor induction motor(WRIM) was derived, and then the rotor side PWM converter control strategy based on a stator voltage orientation was designed. Finally, experimental platform for doubly-fed speed-regulating control system was built. Experimental results showed that the control strategy is feasible and efficient.

scholarly journals Simulation of reactive power regulation of DFIG

2021 ◽  
Vol 233 ◽  
pp. 01025
Author(s):  
Yingfeng Zhu ◽  
Xiaosu Xie ◽  
Dong Yang ◽  
Song Gao ◽  
Weichao Zhang ◽  
...  
Keyword(s):  
Wind Farm ◽  
Reactive Power ◽  
Control Method ◽  
Power Regulation ◽  
Working Principle ◽  
Power Limit ◽  
Doubly Fed ◽  
Grid Side ◽  
Grid Side Converter ◽  
And Control

Doubly fed induction generator (DFIG) wind power generation system is widely used in wind farm all over the world. Reactive power can be generated both in grid-side converter and generator-side converter of DFIG. In this paper, working principle and control method of DFIG are introduced, and the reactive power limit of DFIG is derived, finally reactive power regulation is simulated in Simulink.

Improved Control Strategy of Wind Turbine with DFIG for Low Voltage Ride through Capability

2014 ◽  
Vol 707 ◽  
pp. 329-332
Author(s):  
Li Ling Sun ◽  
Dan Fang
Keyword(s):  
Wind Turbine ◽  
Control Strategy ◽  
Low Voltage ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Operating Characteristics ◽  
Low Voltage Ride Through ◽  
Doubly Fed ◽  
Rotor Side Converter ◽  
And Control

As the number of doubly fed induction generator (DFIG)- based wind-turbine systems continues to increase, wind turbines are required to provide Low Voltage Ride-Through (LVRT) capability, especially under the condition of grid voltage dips. This paper, depending on the operating characteristics of doubly-fed induction generator during grid faults ,deals with a protection and control strategy on rotor-side converter (RSC) to enhance the low voltage ride through capability of a wind turbine driven doubly fed induction generator (DFIG). The simulation and experiment studies demonstrate the correctness of the developed model and the effectiveness of the control strategy for DFIG-based wind-turbine systems under such adverse grid conditions.

scholarly journals Operation and Control of a Direct-Driven PMSG-Based Wind Turbine System with an Auxiliary Parallel Grid-Side Converter

Energies ◽  
2013 ◽  
Vol 6 (7) ◽  
pp. 3405-3421 ◽  
Author(s):  
Zaijun Wu ◽  
Xiaobo Dou ◽  
Jiawei Chu ◽  
Minqiang Hu
Keyword(s):  
Wind Turbine ◽  
Wind Turbine System ◽  
Grid Side ◽  
Grid Side Converter ◽  
And Control
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