پایان نامه جایابی بهینه خازن با هدف بهبود پروفیل ولتاژ و کمینه سازی تلفات توان شبکه توزیع واقعی با مدل سازی بار های مختلف

فهرست:

1-1 دیباچه...................................................................................................................................................... .2

1-2 مطالعه­ی تاثیرگذاری خازن روی شبکه................................................................................................ .4

1-2-1 کاربرد بانک خازنی.................................................................................................................. ..9

1-2-2 مکان بانک خازنی بهینه........................................................................................................ 10

1-2-3 مزایای خازن شنت.................................................................................................................. 12

1-2-4 گزینه­های عملی برای کاهش تلفات...................................................................................... 13

1-3 معیار طراحی.......................................................................................................................................... 14

1-4 جبران­سازی توان راکتیو........................................................................................................................... 15

1-5 اصلاح ضریب قدرت................................................................................................................................. 17

1-6 محدوده و هدف پایان­نامه...................................................................................................................... 19

1-7 بیان مسأله اساسی تحقیق.................................................................................................................. 20

1-8 طرح کلی پایان­نامه................................................................................................................................ 22

فصل دوم: مبانی نظری و پیشینه تحقیق

2-1 دیباچه...................................................................................................................................................... 24

2-2 روش­های تحلیلی....................................................................................................................................... 24

2-3 روش­های برنامه­ریزی ریاضی.................................................................................................................... 25

2-4 روش­های ابتکاری...................................................................................................................................... 27

2-5 روش­های مبتنی بر هوش مصنوعی........................................................................................................ 29

2-5-1 الگوریتم ژنتیک...................................................................................................................... 29

2-5-2 سیستم­های خبره.................................................................................................................. 31

2-5-3 آب­کاری شبیه­سازی شده....................................................................................................... 32

2-5-4 شبکه­های عصبی مصنوعی................................................................................................. 34

2-5-5 تئوری مجموعه فازی............................................................................................................... 35

فصل سوم: بهینه­سازی اجتماع ذرات

3-1 دیباچه...................................................................................................................................................... 39

3-2 کاربرد بهینه­سازی اجتماع ذرات در سیستم­های قدرت....................................................................... 40

3-2-1 جایابی و تعیین ظرفیت بهینه­ی خازن................................................................................... 41

3-2-2 پخش بار اقتصادی.................................................................................................................. 42

3-2-3 پخش بار بهینه....................................................................................................................... 42

3-2-4 کنترل ولتاژ و توان راکتیو بهینه............................................................................................. 43

3-2-5 طراحی پایدارسازی سیستم قدرت........................................................................................ 44

3-3 مفهوم PSO.......................................................................................................................................... 44

3-4 عناصر اصلی الگوریتم PSO............................................................................................................... 45

3-5 اجرای الگوریتم PSO............................................................................................................................ 44

3-6 مزایای الگوریتم PSO به سایر الگوریتم­های تکاملی...................................................................... 52

فصل چهارم: بهینه­سازی تابع هدف

4-1 دیباچه...................................................................................................................................................... 55

4-2 بیان مساله............................................................................................................................................. 57

4-3  قیود......................................................................................................................................................... 59

4-4 مدل بار پیشنهادی.................................................................................................................................. 61

4-4-1 مدل­سازی بار از لحاظ نوع مصرف........................................................................................... 61

4-4-2 مدل­سازی بار از لحاظ توان، امپدانس و جریان ثابت................................................................ 63

4-5 حل مساله جایابی خازن با استفاده از الگوریتم PSO..................................................................... 64

فصل پنجم: نتایج شبیه­سازی

5-1 دیباچه...................................................................................................................................................... 67

5-2 جایابی دو خازن......................................................................................................................................... 68

5-3 جایابی چهار خازن................................................................................................................................... 71

5-4 جایابی شش خازن................................................................................................................................... 74

5-5 جایابی هشت خازن................................................................................................................................. 77

5-6  جمع بندی................................................................................................................................80

فصل ششم: بحث و نتیجه­گیری

6-1 دیباچه...................................................................................................................................................... 82

6-2 نتیجه­گیری.............................................................................................................................................. 82

6-3 پیشنهادها.............................................................................................................................................. 84

پیوست­ها

الف: اطلاعات شبکه­ی نمونه........................................................................................................................ 86

مراجع.............................................................................................................................................................. 89

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