مشخصات پژوهش

عنوان	Frequency Response Improvement in Microgrids: A Fuzzy–based Virtual Synchronous Generator Approach
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	FACTS, Fuzzy Controller, Microgrids, Transient Performance Improvement, Virtual Inertia, Virtual Synchronous Generator (VSG).
چکیده	he use of renewable energy sources in microgrids has grown dramatically in recent years. The absence of a rotational mass in these microgrids and their interfaces leads to a lack of inertia and consequently, frequency and voltage instability. To cope with these dilemmas, the virtual synchronous generator (VSG) has been introduced as an effective solution. This paper first focuses on modeling a VSG using basic electrical equations. It, then, proffers a transient fuzzy controller augmented on virtual inertia’s topology. Inspired by the FACTS’ performance, the privileged specifications such as STATCOM fluctuation damping ability for major perturbations at transient times are appended to the VSG scheme by a fuzzy controller. This controller is implemented with a difference in voltage angle and its derivative, as well as in frequency and its derivative. The modified coefficients of both active and reactive powers are outputs of the fuzzy system. Using the proposed fuzzy controller, the transient response of VSG-based microgrids is improved. Simplicity and ability to improve the transient response are the principal specifications of the proposed configuration. Simulation results confirm the improvement of the presented method by the introduced augmented VSG control mechanism.
پژوهشگران	حسن بیورانی (نفر چهارم)، امین کریمی (نفر اول)، رحمت الله میرزائی (نفر سوم)، یوسف رضا جعفریان (نفر دوم)