Dynamic Mathematical Model of Variable Pitch Double-Fed Wind Power Generator

2014 ◽  
Vol 556-562 ◽  
pp. 2017-2020
Author(s):  
Zhi Jie Wang ◽  
San Ming Liu ◽  
Xia Sun ◽  
Xin Xia Su ◽  
Li Juan Chen ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Wind Power ◽  
Power Factor ◽  
Wind Farm ◽  
System Stability ◽  
Control Mode ◽  
Constant Frequency ◽  
Wind Power Generator ◽  
Doubly Fed ◽  
Power Factor Control

Based on the variable speed constant frequency doubly-fed wind turbine model, this paper increased the power factor control link for the wind farm to apply two kinds of constant voltage and constant power factor control mode of the simulation needs, and build a suitable for our country to contain a mathematical model of wind power system stability analysis.

Design and Simulation of Variable Speed Constant Frequency Brushless Doubly Fed Wind Power Generator

2011 ◽  
Vol 383-390 ◽  
pp. 537-542
Author(s):  
Kai Jun Wu ◽  
Yan Yan Wang
Keyword(s):  
Wind Power ◽  
Reactive Power ◽  
Variable Structure ◽  
Constant Frequency ◽  
Power Generator ◽  
Structure Control ◽  
Power Decoupling ◽  
Wind Power Generator ◽  
Doubly Fed ◽  
And Control

Brushless Doubly-fed Machine (BDFM) is a new inverter-driven induction motor, and it has broad prospects in wind power generation. This paper analyses the structure and VSCF electricity generating principle of a cascade Brushless Doubly fed Wind Power Generator, deduces the BDFG’s mathematical model, The variable structure control (VSC) was used to the active and reactive power decoupling control of the BDFM, analysis the relation of electromagnetism and energy balance .Finally, simulation and analysis of the whole system and control strategy are carried through in matlab/simulink soft. According to these results, the correct of parameters and simulation model for BDFM is proved.

Study on Application of STATCOM in Dynamic Reactive Power Compensation of Wind Farm Integration

2014 ◽  
Vol 672-674 ◽  
pp. 255-261
Author(s):  
Zhi Jian Liu ◽  
Zi Qi Zhao ◽  
Bo Li
Keyword(s):  
Wind Power ◽  
Large Scale ◽  
Wind Farm ◽  
Reactive Power ◽  
Power Grid ◽  
Reactive Power Compensation ◽  
System Stability ◽  
Static Synchronous Compensator ◽  
Wind Power Integration ◽  
Doubly Fed

As an increasing proportion of wind power in power grid, reactive power problem has become the most important problems in wind power integration. But as a result of wind power is a kind of intermittent energy sources, and put it into use in a large scale only just beginning. Many urgent problems which affect on system stability need to be resolved, such as voltage stability, reactive power compensation. This paper discussed the problems which around the reactive power compensation and angle stability issues while wind power integration. The reactive power compensation device named STATCOM instead of traditional capacitance. Establish the mathematical model of the Doubly-Fed Induction Generator (DFIG) and Static Synchronous Compensator (STATCOM) [3]. In order to meet the wind farm can transport reactive power quickly and continuously after fault. Establish the control strategy of DFIG combined with STATCOM [1]. Using the software MATLAB to simulate the wind power grid model and control system, verifies the rightness and effectiveness of model and STATCOM reactive power compensation effect for wind power integration.

The Strategy Research for Doubly-Fed Wind Power Generator Active-Reactive Hybrid Additional Damping Control

2013 ◽  
Vol 805-806 ◽  
pp. 320-326
Author(s):  
Wei Wei ◽  
Li Jie Ding ◽  
Ying Liu ◽  
Gan Li
Keyword(s):  
Wind Power ◽  
Reactive Power ◽  
Control Method ◽  
Hybrid Control ◽  
Control Function ◽  
Operating Conditions ◽  
Constant Frequency ◽  
Wind Generator ◽  
Wind Power Generator ◽  
Doubly Fed

Based on the traditional single power control of the doubly-fed wind generator, this paper proposes an active/reactive power hybrid control method of the doubly-fed wind generator, which associates the operation characteristics of the doubly-fed wind generator with the operating conditions of the power grid. This proposed method incorporates the power variation in the system transmission channel into the calculation of the wind generator power output, and employs the additional control function of the wind generator to increase system damping and restrain system power oscillation. At the same time, the proposed method controls the wind generator to capture the maximum wind power when it is operating at a variable speed with a constant frequency. Moreover, because the proposed method decouples the control of active and reactive power, the converter capacity can be reduced. Simulations in a 9-generator 13-bus system and results indicate the effectiveness and robustness of the proposed method.

Design and Simulation Analysis of Doubly Fed Induction Generator Wind Turbines

2012 ◽  
Vol 260-261 ◽  
pp. 142-147
Author(s):  
Peng Cheng ◽  
Feng Yan Li ◽  
Ji Hui Li
Keyword(s):  
Wind Power ◽  
Simulation Analysis ◽  
Energy Crisis ◽  
Doubly Fed Induction Generator ◽  
Variable Speed ◽  
Constant Frequency ◽  
Wind Generator ◽  
Variable Speed Constant Frequency ◽  
Wind Power Industry ◽  
Doubly Fed

With increasing emphasis on the energy crisis and environmental pollutions, wind power has been developing rapidly worldwide. Because of its unique advantage of variable-speed constant-frequency (VSCF), doubly fed induction wind generator (DFIG) has been widely used in the wind power industry. In this paper, a 3.5kW doubly fed induction wind generator is designed and modeled utilizing ANSOFT, after the optimization of the generator parameters, the data of the stator and rotor no-load and full-load are given by simulation. On this basis, a physical model of doubly fed wind generator is established by Maxwell 2D. And through a finite element triangulation, the distributions of magnetic lines of force and magnetic field within the motor are obtained.

Technology of Grid-Connected Wind Power Generation

2012 ◽  
Vol 542-543 ◽  
pp. 47-51 ◽  
Author(s):  
Jie Li ◽  
Yu Jie Zhang
Keyword(s):  
Power Generation ◽  
Wind Power ◽  
Development Trend ◽  
Wind Power Generation ◽  
Constant Frequency ◽  
Advantages And Disadvantages ◽  
Variable Speed Constant Frequency ◽  
Power Generation System ◽  
Doubly Fed ◽  
Further Development

Based on the synthesis of several common grid-connected methods of wind generator, the paper compares their advantages and disadvantages when these methods are used in theapplication of wind power generation respectively, then predicts their further development trend of wind power grid-connected technologies. Besides, brushless doubly-fed generators are widely applied inVSCF(Variable Speed Constant Frequency) wind power generation system

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