کنترل مستقیم توان مولدهای BCDFIG مبتنی بر الگوریتم پسگام

نوع مقاله : علمی-پژوهشی

نویسندگان

1 گروه قدرت، دانشکده مهندسی برق، دانشگاه علم و صنعت، تهران، ایران

2 دانشیار قدرت، دانشکده مهندسی برق، دانشگاه علم و صنعت، تهران، ایران

3 شرکت توانیر، تهران، ایران

چکیده

با توجه به مزایای فراوان مولدهای القایی دوسو‌تغذیه آبشاری بدون جاروبک (BCDFIG)، این مولدها گزینه‌ای جذاب برای استفاده در سیستم‌های انرژی بادی متصل به شبکه هستند. در این مقاله یک روش نوین کنترل مستقیم توان مبتنی بر الگوریتم پسگام برای مولدهای BCDFIG ارائه گردیده است. متداول‌ترین روش کنترلی سنتی که تاکنون برای این مولدها استفاده شده است، روش کنترل برداری بوده که دارای معایبی نظیر وابستگی به نقطه کار، لزوم تنظیم دقیق پارامترهای کنترل‌کننده‌های PI متعدد و غیره می‌باشد. اصول عملکرد روش پیشنهادی، بر کنترل توان‌های اکتیو و راکتیو مرجع بر اساس الگوریتم پسگام و با استفاده از تعریف تابع لیاپانوف متناسب استوار است. کنترل‌کننده ارائه‌شده قادر است معایب روش کنترل برداری را مرتفع نموده و عملکرد آن را در حالات مختلف بهبود دهد. در نهایت، روش‌های پیشنهادی و کنترل برداری برای مولد BCDFIG در نرم‌افزار MATLAB پیاده‌سازی شده و عملکردهای مربوطه با یکدیگر مقایسه گردیده‌اند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Direct Power Control of BCDFIG Based on Backstepping Algorithm

نویسندگان [English]

  • Mojtaba Esmaeili 1
  • Davood Arab khaburi 2
  • Mahyar Khosravi 1
  • Ramtin Rezavandi 1
  • Mohsen Siami 3
1 Electrical Engineering Department, Iran University of Science & Technology (IUST), Tehran, Iran
2 Electrical Engineering Department, Iran University of Science & Technology (IUST), Tehran, Iran
3 Tavanir company, Tehran, Iran
چکیده [English]

Due to the various advantages of Brushless Cascaded Doubly Fed Induction Generators (BCDFIG), they are an attractive solution to be employed in grid-connected wind energy systems. In this paper, a novel direct power control strategy based on backstepping algorithm, is proposed for BCDFIG. The most well-known traditional control method for BCDFIG is the vector control strategy, which has several disadvantages such as dependence on the operating point, the need for accurately adjusting the parameters of multiple PI controllers, etc. The operating principles of the proposed method are based on controlling the references of active and reactive powers, by using the backstepping algorithm and defining appropriate Lyapunov function. The proposed controller overvomes the aforementioned drawbacks of the vector control method and improves its performance in different operating conditions. Finally, the proposed and vector control schemes for BCDFIG have been implemented in the MATLAB/Simulink software and their performances are compared.

کلیدواژه‌ها [English]

  • Direct power control
  • Backstepping algorithm
  • Vector control
  • Wind power plant
  • BCDFIG

مراجع

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