Equivalent and identification of integrated coupling parameter of variable speed constant frequency brushless doubly fed generator

2013 ◽

Vol 712-715 ◽

pp. 2128-2132

Author(s):

Zhang Yue ◽

Feng Xiang Wang

Keyword(s):

Variable Speed ◽

Constant Frequency ◽

Matlab Software ◽

Simulation Performance ◽

Variable Speed Constant Frequency ◽

Frequency Generation ◽

Doubly Fed ◽

Doubly Fed Generator ◽

Cage Rotor ◽

Rotor Structure

In order to study comparatively the effect of different rotor structure on variable speed constant frequency generation. The simulation performance comparisons between ALA reluctance rotor and cage rotor generator are presented in this paper by MATLAB software. It is indicated that ALA reluctance rotor and cage rotor exhibits fine variable speed constant frequency generation, however, the voltage harmonic of reluctance rotor generator is more than that of cage rotor generator.

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Study on Maximum Power Tracing Controller Based on Self-Adaptive Strategy for Variable Speed Constant Frequency Brushless Doubly-Fed Generator

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.694-697.2211 ◽

2013 ◽

Vol 694-697 ◽

pp. 2211-2214

Author(s):

Xiu Ping Wang ◽

Chun Yu Qu ◽

Rui Guo ◽

Jun You Zhao

Keyword(s):

Maximum Power ◽

Variable Speed ◽

Constant Frequency ◽

Point Tracking ◽

Power Point Tracking ◽

Variable Speed Constant Frequency ◽

Power Point ◽

Doubly Fed ◽

Doubly Fed Generator ◽

Wind Generation System

The key technology of variablespeed constantfrequency (VSCF) brushless doubly-fed generator (BDFG) was getting the maximum power under the variable wind speed by adjusting the rotor speed of the induction generator according. Wind turbine systems had many uncertain factors with strong nonlinear multivariable with and disturbances. Based on the prototype of wind electricity conversion system (WECS), a new maximum power point tracking control which is realized by self-adaptive controller strategy for variable speed constant frequency wind generation system has been developed in this paper. A experiment platform of a 8kW laboratory variable speed constant frequency wind generation system controlled by TMS320LF2812 and TMS320VC33 was developed. Experimental results show that the system can operate at the expected points in the wide range of wind velocities and realize the control of maximum power point tracking very well.

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Excitation Control Strategy of Brushless Doubly-Fed Generator for Variable Speed Constant Frequency Wind Power System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.383-390.717 ◽

2011 ◽

Vol 383-390 ◽

pp. 717-723

Author(s):

Feng Ge Zhang ◽

He Li ◽

Shi Jin

Keyword(s):

Control System ◽

Wind Power ◽

Direct Torque Control ◽

Torque Control ◽

Variable Speed ◽

Constant Frequency ◽

Variable Speed Constant Frequency ◽

Doubly Fed ◽

Doubly Fed Generator ◽

Hardware Circuit

This paper focuses on brushless doubly-fed generator (BDFG) control system used in variable speed constant frequency (VSCF) wind power generation. For maximum wind energy capture, a direct torque control (DTC) strategy is proposed based on the relationship between the maximum absorption power and speed of BDFG. The simulation results of the control system show that the maximum power can be tracked by a quick adjustment of the torque and the feasibility of the control system is verified using Matlab. Furthermore, considering the control system platform with DSP as the core, the control system software program and hardware circuit is designed, including main program and interrupt program processes.

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Design and Simulation Analysis of Doubly Fed Induction Generator Wind Turbines

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.260-261.142 ◽

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.

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