Direct power control simultaneously in the rotor side converter and grid side converter of DFIG for wind turbines with elimination of network current harmonics
سال انتشار: 1398
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 280
فایل این مقاله در 15 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_EPS-8-3_004
تاریخ نمایه سازی: 31 فروردین 1400
چکیده مقاله:
In this paper, direct power control (DPC) was used for active and reactive power control of DFIG in constant speed reference and variable turbine speed reference based on the optimal power curve. On the other hand, wide application of nonlinear loads in power networks has caused problems such as high current harmonics. Non-linear loads act like harmonic current sources and inject harmonic currents into the supply network. The presence of harmonics in the network causes the harmonic voltage drop and causes other consumers to receive distorted supply voltage, which may cause overheating of power factor correction capacitors, motors, transformers and cables, and mal-operation of some protection devices. Since DFIG is responsible for injection of active and reactive power to the network, it is possible to compensate for the fluctuation of power due to nonlinear loads in the network by proper power injection. Therefore, in this paper, direct power control is implemented to control the power of DFIG, and also to reduce the network current harmonics in the presence of nonlinear loads by using the proper control methods through the rotor side converter and grid side convertors. In this regard, the Matlab/Simulink software is used to simulate a system including a DFIG-based wind power unit and the results are analyzed and compared in different scenarios. The results indicate that accurate and fast control of the DFIG power is along with a significant reduction of network current harmonics.
کلیدواژه ها:
wind turbine ، DFIG ، Direct Power Control ، optimum Power Curve ، network current harmonics ، توربین بادی ، ژنراتور القاییدو سو تغذیه ، کنترل مستقیم توان ، منحنی توان بهینه ، هارمونیک جریانی شبکه
نویسندگان
سید نعمتاله حسینیموسوی
Dezful Branch, Islamic Azad University, Dezful, Iran
حسن براتی
Dezful Branch, Islamic Azad University, Dezful, Iran