ﺑﻬﺒﻮد ﻫﻤﺎﻫﻨﮕﯽ ﺣﻔﺎﻇﺘﯽ رﻟﻪﻫﺎي دﯾﺴﺘﺎﻧﺲ ﺧﻄﻮط ﻓﺸﺎرﻗﻮي ﺑﻪﮐﻤﮏ ﺷﺒﮑﻪﻫﺎي ﻋﺼﺒﯽ ﻣﺼﻨﻮﻋﯽ

The Protective Coordination Improvement of Distance Relays of High Voltage Lines via Artificial Neural Networks

در اﯾﻦ ﻣﻘﺎﻟﻪ ﺟﻬﺖ ﺑﺮرﺳﯽ اﺛﺮ ﻧﻮﺳﺎن ﺗﻮان ﺑﺮ رﻟﻪﻫﺎي دﯾﺴﺘﺎﻧﺲ در ﺣﻀﻮر ﻣﻨﺎﺑﻊ ﺗﻮﻟﯿﺪ ﭘﺮاﮐﻨﺪه، ﯾﮏ واﺣﺪ ﺗﻄﺒﯿﻘﯽ ﺑﺎ اﺳﺘﻔﺎده از ﺷﺒﮑﻪﻫﺎي ﻋﺼﺒﯽ ﻣﺼﻨﻮﻋﯽ )ANN( ﺑﺮاي رﻟﻪ دﯾﺴﺘﺎﻧﺲ ﻃﺮاﺣﯽ ﺷﺪه اﺳﺖ. ﺳﯿﺴﺘﻢ ﭘﯿﺸﻨﻬﺎدي در ﮐﻨﺎر واﺣﺪ ﺗﻨﻈﯿﻢ ﺛﺎﺑﺖ رﻟﻪ، ﺑﺎ اﺳﺘﻔﺎده از اﻃﻼﻋﺎت ﻣﺤﻠﯽ ﺣﺪ ﺗﺮﯾﭗ را ﺑﺮاي رﻟﻪ ﺗﻨﻈﯿﻢ ﻣﯽﻧﻤﺎﯾـﺪ. در اﯾـﻦ ﺣﺎﻟـﺖ، ﺗﻨﻈـﯿﻢ ﻧﺎﺣﯿﻪﻫﺎي ﺣﻔﺎﻇﺘﯽ رﻟﻪ دﯾﺴﺘﺎﻧﺲ ﻫﻤﺰﻣﺎن ﺑﺎ ﺗﻐﯿﯿﺮ ﺷﺮاﯾﻂ واﺣﺪﻫﺎي ﺗﻮﻟﯿﺪ ﭘﺮاﮐﻨﺪه ﺑﻪﺻﻮرت ﺗﻄﺒﯿﻘﯽ ﻋﻮض ﻣﯽﺷـﻮد ﺗﺎ از ﻋﻤﻠﮑﺮد ﻧﺎدرﺳﺖ رﻟﻪ ﺟﻠﻮﮔﯿﺮي ﮔﺮدد.

In this paper, an adaptive unit is designed for distance relay using the Artificial Neural Network (ANN) to study the effect of power oscillation on distances relays in the presence of distributed generation sources. The proposed system, along with the relay constant setting unit, uses the local information to set the trip limit for the relay. In this case, the adjustment of the relay protection zones will be adapted simultaneously as the conditions of the dispersed generation units' change, in order to prevent from the faulty operating of the relay.