An Improved Direct Power Control of A Doubly Fed Induction Generator Wind Power System

被引：0
|
作者：
Mahmodicherati, Sam [1 ]
Elbuluk, Malik [1 ]
Sozer, Yilmaz [1 ]
机构：
[1] Univ Akron, Dept Elect & Comp Engn, Akron, OH 44325 USA
来源：
2013 IEEE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING | 2013年
关键词：
DIRECT TORQUE CONTROL; CONSTANT SWITCHING FREQUENCY; DFIG;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The conventional switching strategy of a direct power control (DPC) scheme for doubly-fed induction generator (DFIG) wind energy generation systems are based on hysteresis comparators. Non-linear behavior of this controller causes non-constant switching frequency on the rotor side converter, which depends on the wind speed, amount of power converted and the hysteresis band of the comparator. This paper proposes a constant switching frequency controller that can replace the hysteresis-based variable frequency controller. Using two triangular waveforms that are phase shifted by 180 degrees, the DFIG can operate in wide range of speed with constant switching frequency. Matlab/Simulink and PSIM simulation packages are used to validate this type of controller.
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页数：8
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