کنترل یکپارچه ژنراتور القایی، محدودکننده جریان خطا و ذخیره‌ساز انرژی در مزارع بادی

نوع مقاله: مقاله برق

نویسندگان

1 دانشگاه آزاد اسلامی، واحد تهران غرب، گروه مهندسی برق، تهران، ایران

2 دانشکده مهندسی برق و کامپیوتر، دانشگاه شهید بهشتی، تهران، ایران

چکیده

یکی از مشکلات مهم سیستم‌های قدرت که دارای مزارع بادی با ژنراتورهای القایی دوسوتغذیه هستند قابلیت ایستادگی در مقابل خطای این ژنراتورها و نوسانات توان خروجی آنهاست. در مواقعی که این ژنراتورها توان قابل توجهی از سیستم قدرت را تأمین می‌کنند خروج آنها در هنگام خطا، باعث ناپایداری شبکه می‌شود. طبق نیازهای جدید بر اساس کدهای شبکه، در مواقع خطا که ولتاژ در پایانه ژنراتور افت می‌کند، بایستی به منظور حفظ پایداری سیستم، مزارع بادی در شبکه باقی بمانند. به منظور رفع این مشکل، از ابررسانای محدود کننده جریان خطا به منظور محدود کردن جریان خطا و همچنین ابررسانای ذخیره‌ساز انرژی مغناطیسی به منظور جذب و یا تزریق توان در مواقع مورد نیاز برای کم کردن نوسانات توان استفاده می‌شود. در این مقاله، روشی جهت کنترل هماهنگ ژنراتور القایی دوسوتغذیه، ابررسانای ذخیره‌ساز انرژی مغناطیسی و ابررسانای محدود کننده جریان خطا با استفاده از الگوریتم بهینه‌سازی HBB-BC ارائه شده است. اهداف این بهینه‌سازی شامل حداقل‌سازی ظرفیت هسته مورد نیاز ذخیره‌ساز، کاهش انرژی محدود کننده جریان خطا و بهبود ولتاژ شین ژنراتور و کاهش نوسانات توان و سرعت زاویه‌ای ژنراتور می‌باشد. نتایج شبیه‌سازی‌های صورت گرفته بر روی شبکه مورد آزمایش، قابلیت این کنترل‌کننده بهینه را در رسیدن به اهداف فوق نشان می‌د‌هد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Integrated control scheme for induction generator, fault current limiter, and energy storage in wind farms

نویسندگان [English]

  • Masoud Esmaili 1
  • Mostafa Sedighizadeh 2
  • Hesam Yarmohammadi 2
1 Department of Electrical Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran
2 Department of Electrical and Computer Engineering, Shahid Beheshti University, Tehran, Iran
چکیده [English]

One of main problems of power systems with doubly fed induction generators (DFIG)-based wind farms is their capability of fault ride through (FRT) and output power fluctuations. If these generators provide considerable amounts of power, their outage can lead to system instability. According to the new needs of network codes, wind farms should remain in the network when a fault causes the voltage drop across the generator terminals. To solve this problem, the superconducting fault current limiter (SFCL) is used for limiting the fault current and superconducting magnetic energy storage (SMES) is used for injecting/withdrawing power to reduce power fluctuations. This article carries out the coordinated control of DFIG, SFCL, and SMES by employing the HBB-BC optimization algorithm. Its objective functions include minimization of the required storage core capacity, energy reduction, improvement of generators bus voltage, fault current limiting, reducing power fluctuations, and the generators angular velocity. Simulation results show the ability of this optimal controller in achieving the above indicated objectives.

کلیدواژه‌ها [English]

  • DFIG (Doubly fed induction generator)
  • FRT (Fault Ride Through)
  • stability
  • SFCL (Superconducting Fault Current Limiter)
  • SMES (superconducting magnetic energy storage)

 

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