مدیریت توان یک سیستم تبدیل انرژی باد مجهز به ژنراتور القایی دوسو تغذیه
محورهای موضوعی : انرژی های تجدیدپذیرایمان زنگی آبادی 1 , افشین اعتصامی 2
1 - کارشناسی ارشد- سرپرست مهندسی و نظارت شرکت نیرو صنعت سرچشمه کرمان، کرمان، ایران
2 - مربی- دانشکده مهندسی برق، واحد نجف آباد، دانشگاه آزاد اسلامی، نجف آباد، اصفهان، ایران
کلید واژه: هارمونیک, کیفیت توان, ژنراتور القایی دو سو تغذیه, مبدل سمت رتور, مبدل سمت شبکه,
چکیده مقاله :
امروزه باد یکی از گزینه های جذاب حوزه ی انرژی، حجم قابل توجه ای از مطالعات و سرمایه گذاری را به خود اختصاص داده است. به دلیل اهمیت انرژی باد به عنوان یکی از منابع انرژی تجدیدپذیر، در این مقاله مدیریت تولید توان های اکتیو و راکتیو یک سیستم تبدیل انرژی باد مجهز به ژنراتور القایی دو سو تغذیه در دستور کار قرار داده شده است. در این راستا ساختاری مبتنی بر روش کنترل برداری جهت کنترل مستقل توان اکتیو و راکتیو پیشنهاد می شود. استراتژی مدیریت تولید توان اکتیو و راکتیو از طریق مبدل الکترونیک قدرت سمت رتور ژنراتور القایی دو سو تغذیه، به شبکه اعمال می شود. بر این اساس، تولید توان اکتیو براساس استراتژی استخراج ماکزیمم توان از باد و بهبود کیفیت توان مبتنی بر استراتژی های تصحیح ضریب توان و کاهش هارمونیک جریان شبکه ناشی از بار غیر خطی، جهت اعمال به شبکه اولویت بندی می شوند. جهت ارزیابی طرح پیشنهادی، شبیه سازی آن در شرایط مختلفی از بار راکتیو متصل به شبکه با نرم افزار متلب تحت آزمایش قرار داده می شود. نتایج بدست آمده، به وضوح گویای عملکرد مناسب کنترل توان سیستم تبدیل انرژی باد، بهبود ضریب توان شبکه و کاهش جریان هارمونیکی شبکه، مبتنی بر طرح پیشنهادی است.
Today wind is one of the attractive points of energy area which has got the noticeable amount of investment and studies in this field. Considering the importance of the wind energy and its potentials as one of the renewable energy sources, in this paper managing the production of active and reactive powers of a wind energy conversion system equipped with DFIG has been studied. In this regard, a structure based on vector control is offered to achieve an independent control of active and reactive powers. The strategy of managing the production of active and reactive power is applied to network by rotor side converter of a DFIG. The production of active power according to the maximum power point taking (MPPT) strategy to get a maximum power of the wind energy has been done and also improvement of power quality based on strategies of power factor correction and harmonics reduction have been arranged for a power network. In order to evaluate the performance of the proposed method, a DFIG connected with a power network in different conditions of the reactive load has been simulated by MATLAB software.Obviously, the results state the proper operation of the power control of wind energy converting system , improvement of the network power factor, and Reduction of harmonic current of network based on the proposed method.
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