تجديد آرايش بهينه سيستم هاي توزيع با استفاده از روش هاي بهينه سازي فرا ابتكاري

The optimal Rearrangement of Distribution Systems by using Meta-heuristic Optimal Methods

ﻋﺪم ﺗﻌﺎدل ﺑﺎر، ﺧﺎﻣﻮﺷﯽﻫﺎي ﻣﺘﻌﺪد، اُﻓﺖ وﻟﺘﺎژ ﺷﺪﯾﺪ و ﺗﻠﻔﺎت ﺑﺎﻻ از ﺟﻤﻠﻪ ﻣﺸﮑﻼت اﺳﺎﺳﯽ در ﺷﺒﮑﻪﻫﺎي ﺗﻮزﯾﻊ ﻣﯽﺑﺎﺷﻨﺪ. ﯾﮑﯽ از راهﺣﻞﻫﺎﯾﯽ ﮐﻪ اﻣﺮوزه ﺑﺮاي ﺣﻞ اﯾﻦ ﻣﺴﺎﺋﻞ ﻣﻄﺮح ﺷﺪه، ﺗﺠﺪﯾﺪ آراﯾﺶ )ﺑﺎزآراﯾﯽ( ﺷﺒﮑﻪﻫﺎي ﺗﻮزﯾﻊ ﻣﯽﺑﺎﺷـﺪ. ﺑـﺎزآراﯾﯽ ﺳﯿﺴﺘﻢﻫﺎي ﺗﻮزﯾﻊ اﻫﺪاف ﻣﺨﺘﻠﻔﯽ را ﻣﯽﺗﻮاﻧﺪ درﺑﺮ ﮔﯿﺮد. اﻏﻠﺐ ﻣﺤﻘﻘﯿﻦ ﮐﺎﻫﺶ ﺗﻠﻔـﺎت، ﻣﺘﻌـﺎدل ﮐـﺮدن ﺑـﺎر ﻓﯿـﺪرﻫﺎ و ﺑﻬﺒـﻮد ﭘﺮوﻓﯿﻞ وﻟﺘﺎژ را ﺑﻪﻋﻨﻮان اﻫﺪاف اﺻﻠﯽ ﺑﺎزآراﯾﯽ ﻣﻮرد ﻣﻄﺎﻟﻌﻪ ﻗﺮاردادهاﻧﺪ. در دﻫﻪ اﺧﯿﺮ روشﻫﺎي زﯾﺎدي ﺟﻬﺖ ﺑـﺎزآراﯾﯽ اﺳـﺘﻔﺎده ﺷﺪه اﺳﺖ ﮐﻪ ﺑﻬﺮهﮔﯿﺮي از روشﻫﺎي اﺑﺘﮑﺎري و ﻓﺮا اﺑﺘﮑﺎري ﭼﺸﻤﮕﯿﺮ ﺑﻮدهاﻧﺪ. در اﯾﻦ ﻣﻘﺎﻟﻪ ﺑﺎ اﺳﺘﻔﺎده از اﻟﮕﻮرﯾﺘﻢ ﺑﻬﯿﻨﻪﺳـﺎزي ازدحام ذرات PSO الهام گرفته شده از حركت دسته ­جمعي پرندگان، بازآرايي بهينه سيستم توزيع انجام شده است. نتايج حاصل از شبيه ­سازي در محيط MATLAB بيانگر اثربخشي رويكرد پيشنهادي در كاهش تلفات، بهبود پروفيل ولتاژ و متعاد ل ­سازي بار مي­باشد.

Load imbalance, multiple outages, high voltage drop and high losses are one of the major problems in distribution networks. One of the solutions to solving these issues today is to rearrange the distribution networks. The rearrangement of distribution systems can have different goals. Most researchers have considered reducing losses, balancing the load of feeders, and improving the voltage profile as the main objectives of the rearrangement. In the last decade, many methods have been used for rearranging, which have been remarkably used the heuristic and meta-heuristic methods. In this paper, an optimal rearrangement of the distribution system is carried out using the Particle Swarm Optimization (PSO) algorithm, inspired by the collective movement of birds. The results of simulation in MATLAB indicate the effectiveness of the proposed approach to reduce losses, improves the voltage profile and load balancing.