DFIG wind turbines with very sparse and sparse Matrix Converters to control frequency

Author(s):  
Bahman Khaki ◽  
Mohammad Iman Bahari ◽  
S. Ebrahim Afjei

In this p aper, Matrix Converter is which converts the AC to AC in a single stage. The merits of the matrix converter is its able to deliver variable output voltage with unrestricted input and output frequency, the lack of electrolytic capacitors, and the potential to raise the power density, decrease the size, less weight and better input power quality. In whatever way, application of these converters are restricted because of some issues such as different control strategies, high susceptibility to input power disturbances, common mode voltage effects and less voltage transfer ratio. Recently, matrix converters have gained a resurgence of importance due to the improvements in the semiconductor device industry and the increasing of processor technologies, which promises real implementation of matrix converters in the control of drives. The real effect of indirect space vector modulation scheme for very sparse matrix converter performance will be measures by testing of computationally for using indirect space vector modulation strategies with the passive R load and active load .


2019 ◽  
Vol 34 (1) ◽  
pp. 958-970 ◽  
Author(s):  
Amir Masoud Bozorgi ◽  
Amir Hakemi ◽  
Mehdi Farasat ◽  
Mohammad Monfared

EPE Journal ◽  
2003 ◽  
Vol 13 (1) ◽  
pp. 5-14 ◽  
Author(s):  
F. Schafmeister ◽  
M. Baumann ◽  
J.W. Kolar

2014 ◽  
Vol 986-987 ◽  
pp. 606-610
Author(s):  
Zhi Jie Wang ◽  
San Ming Liu ◽  
Pan Xi ◽  
Ze Yang Pei ◽  
Xin Xia Su ◽  
...  

Setting up a practical power system containing wind farm small disturbance stability mathematical model, and the linearized equation of wind turbines and original equations of linear system, power system containing wind turbines augmented state formation matrix, turn the inverse iteration with PSASP software Rayleigh (Rayleigh quotient iterative algorithm and sparse matrix technique for large state matrix eigenvalues. In this paper, the Inner Mongolia power grid, wind power access to power system oscillation mode and the influence of the oscillation characteristics and meet the requirements of small disturbance stability of wind scale and operation control scheme. The influence of the wind farm is proposed for power system damping characteristics will not greater than the same capacity of synchronous generator's point of view.


2007 ◽  
Vol 22 (5) ◽  
pp. 1649-1661 ◽  
Author(s):  
Johann W. Kolar ◽  
Frank Schafmeister ◽  
Simon D. Round ◽  
Hans Ertl

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