طراحی هماهنگ پایدارساز سیستم قدرت و ادوات امپدانس متغیر برای افزایش میرایی مدهای بین ناحیه‌ای با استفاده از الگوریتم ژنتیک
محورهای موضوعی : مهندسی برق و کامپیوترمیثم زمانی 1 , غضنفر شاهقلیان 2 *
1 - دانشگاه آزاد اسلامی واحد نجف آباد
2 - مهندسی برق
چکیده مقاله :
پایدارساز سیستم قدرت تأثیر بسزایی در میرایی مدهای بین ناحیه‌ای ندارد و از سیستم‌های انتقال انعطاف‌پذیر جریان متناوب (FACTS) برای میرایی این مدها و پایداری سیستم قدرت استفاده می‌شود. در این مقاله یک تابع هدف بر مبنای ضرایب وزنی متفاوت و متغیر بر اساس موقعیت مقادیر ویژه ارائه می‌گردد و بهینه‌سازی پارامترهای پایدارساز سیستم قدرت (PSS) و ادوات امپدانس متغیر شامل جبران‌کننده وار استاتیکی (SVC) و خازن سری کنترل‌شده با تریستور (TCSC) شامل ضریب بهره تقویت‌کننده و ثابت‌های زمانی بلوک‌های جبران‌کننده فاز به صورت هماهنگ با استفاده از الگوریتم ژنتیک انجام شده است. همچنین در فرایند بهینه‌سازی مکان ادوات FACTS و سیگنال کنترلی نیز به عنوان پارامتر بهینه‌سازی در نظر گرفته شده است. نتایج شبیه‌سازی در سیستم قدرت 68باسه IEEE بهبود میرایی مدهای بین ناحیه‌ای را با استفاده از روش پیشنهادی نشان می‌دهد.
Power system stabilizer (PSS) does not have a significant impact on inter-area modes and FACTS devices are used to damping these modes and to enhance power system stability. In this article, an objective function based on different and variable weight coefficients according to eigenvalues condition is proposed and optimization parameters of power system stabilizer and variable impedance parameters include static VAR compensator (SVC) and thyristor controlled series capacitor (TCSC), (Including amplifying gain rate and time constant of phase-compensating blocks) is done using genetic algorithm in harmony. Also, in the process of optimization, the location of the FACTS devices and the control signal are considered as optimization parameters. Simulation results on IEEE 68-bus system show improvement damping of inter-area modes using the proposed method.
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