POWER SYSTEM STABILITY IMPROVEMENT USING (SSSC)

Abstract

In this paper the impact of one type of Flexible AC Transmission Systems (FACTS) devices which is called Static Series Synchronous Compensator (SSSC) for improving power system stability is developed. The optimal location of (SSSC) is determined related to deregulated electricity market to reduce system losses and congestion of the transmission line, hence increasing maximum load ability of the system. The congested line based on optimal power flow (OPF) tool to find local marginal price (LMP) difference is determined. A list is formed based on the magnitude of the difference in (LMPs) to find the most congested lines. For each line in the priority list the continuation power flow (CPF) is determined with (SSSC) in that line, the best location of (SSSC) is the one where by placing (SSSC) gives highest maximum loading point. The results showed that proposed location of (SSSC) in congested line give higher maximum loading point and improve system dynamic performance. The study is illustrated on IEEE 14-bus system, based on Power System Analysis Toolset (PSAT). ‫اﺳﺘﺨ‬ ‫ﻋﻠﻰ‬ ‫اﻟﻘﺪرة‬ ‫ﺗﺤﺴﯿﻦ‬ ‫اﻻﺳﺘﻘﺮار‬ ‫ﻧﻈﺎم‬ ‫ﺪام‬) SSSC (‫ﻣﺤﻤﻮد‬ ‫طﺎرق‬ ‫اﻟﻜﮭﺮﺑﯿﺔ‬ ‫اﻟﮭﻨﺪﺳﺔ‬ ‫ﻗﺴﻢ‬ ، ‫اﻟﮭﻨﺪﺳﺔ‬ ‫ﻛﻠﯿﺔ‬ ، ‫اﻷزھﺮ‬ ‫ﺟﺎﻣﻌﺔ‬ ، ‫ﻧﺼﺮ‬ ‫ﻣﺪﯾﻨﺔ‬ ، ‫اﻟﻘﺎھﺮة‬ ، ‫اﻟﻌﺮﺑﯿﺔ‬ ‫ﻣﺼﺮ‬ ‫ﺟﻤﮭﻮرﯾﺔ‬ ‫اﻟ‬ ‫ﻤﻠﺨﺺ‬ ‫اﻟﻤﺘﺰاﻣﻦ‬ ‫اﻟﻤﻌﻮض‬ ‫ﻋﻠﯿﮫ‬ ‫ﯾﻄﻠﻖ‬ ‫واﻟﺬي‬ ‫اﻟﻤﺮﻧﺔ‬ ‫اﻟﻤﺘﺮدد‬ ‫اﻟﺘﯿﺎر‬ ‫ﻧﻘﻞ‬ ‫أﻧﻈﻤﺔ‬ ‫أﺟﮭﺰة‬ ‫ﻣﻦ‬ ‫واﺣﺪ‬ ‫ﻧﻮع‬ ‫ﺗﺄﺛﯿﺮ‬ ‫ﺗﻄﻮﯾﺮ‬ ‫ﺗﻢ‬ ، ‫اﻟﻤﻘﺎﻟﮫ‬ ‫ھﺬه‬ ‫ﻓﻲ‬ ‫اﻟﻄﺎﻗﺔ‬ ‫ﻧﻈﺎم‬ ‫اﺳﺘﻘﺮار‬ ‫ﻟﺘﺤﺴﯿﻦ‬ ‫اﻟﺜﺎﺑﺖ‬ ‫ﻟﻠﻤﺴﻠﺴﻞ‬. ‫ﻟـ‬ ‫اﻷﻣﺜﻞ‬ ‫اﻟﻤﻮﻗﻊ‬ ‫ﺗﺤﺪﯾﺪ‬ ‫ﯾﺘﻢ‬) SSSC (‫ﻓﻘﺪ‬ ‫ﻟﺘﻘﻠﯿﻞ‬ ‫اﻟﻤﺤﺮر‬ ‫ﻏﯿﺮ‬ ‫اﻟﻜﮭﺮﺑﺎء‬ ‫ﺑﺴﻮق‬ ‫اﻟﻤﺘﻌﻠﻖ‬ ‫ﻟﻠﻨﻈﺎم‬ ‫اﻟﻘﺼﻮى‬ ‫اﻟﺤﻤﻞ‬ ‫ﻗﺪرة‬ ‫زﯾﺎدة‬ ‫وﺑﺎﻟﺘﺎﻟﻲ‬ ، ‫اﻟﻨﻘﻞ‬ ‫ﺧﻂ‬ ‫وازدﺣﺎم‬ ‫اﻟﻨﻈﺎم‬. ‫ﻟﻠﻄﺎﻗﺔ‬ ‫اﻷﻣﺜﻞ‬ ‫اﻟﺘﺪﻓﻖ‬ ‫أداة‬ ‫ﻋﻠﻰ‬ ‫ﺑﻨﺎء‬ ‫اﻟﻤﻜﺘﻆ‬ ‫اﻟﺨﻂ‬ ‫ﺗﺤﺪﯾﺪ‬ ‫ﯾﺘﻢ‬ ً ‫اﻟﻤﺤﻠﻲ‬ ‫اﻟﮭﺎﻣﺸﻲ‬ ‫اﻟﺴﻌﺮ‬ ‫ﻓﺮق‬ ‫ﻋﻠﻰ‬ ‫ﻟﻠﻌﺜﻮر‬. ‫ﻟﻠﻌﺜﻮر‬ ‫ﻓﻲ‬ ‫اﻟﻔﺮق‬ ‫ﺣﺠﻢ‬ ‫ﻋﻠﻰ‬ ‫ﺑﻨﺎء‬ ‫ﻗﺎﺋﻤﺔ‬ ‫ﺗﻜﻮﯾﻦ‬ ‫ﯾﺘﻢ‬ ً ‫ازدﺣﺎﻣﺎ‬ ‫اﻟﺨﻄﻮط‬ ‫أﻛﺜﺮ‬ ‫ﻋﻠﻰ‬ ً. ‫ﺳﻄﺮ‬ ‫ﻟﻜﻞ‬ ‫وﺿﻊ‬ ‫طﺮﯾﻖ‬ ‫ﻋﻦ‬ ‫ﯾﻮﻓﺮ‬ ‫اﻟﺬي‬ ‫ھﻮ‬ ‫ﻟـ‬ ‫ﻣﻮﻗﻊ‬ ‫أﻓﻀﻞ‬ ، ‫اﻟﺨﻂ‬ ‫ھﺬا‬ ‫ﻓﻲ‬ ‫ﻣﻊ‬ ‫اﻻﺳﺘﻤﺮار‬ ‫ﻋﻠﻰ‬ ‫اﻟﻘﺪرة‬ ‫ﺗﺪﻓﻖ‬ ‫ﺗﺤﺪﯾﺪ‬ ‫ﯾﺘﻢ‬ ، ‫اﻷوﻟﻮﯾﺎت‬ ‫ﻗﺎﺋﻤﺔ‬ ‫ﻓﻲ‬ ‫ﻗﺼﻮى‬ ‫ﺗﺤﻤﯿﻞ‬ ‫ﻧﻘﻄﺔ‬ ‫أﻋﻠﻰ‬. ‫ﻟـ‬ ‫اﻟﻤﻘﺘﺮح‬ ‫اﻟﻤﻮﻗﻊ‬ ‫أن‬ ‫اﻟﻨﺘﺎﺋﺞ‬ ‫أظﮭﺮت‬ ‫اﻷداء‬ ‫وﯾﺤﺴﻦ‬ ‫ﺗﺤﻤﯿﻞ‬ ‫ﻧﻘﻄﺔ‬ ‫أﻋﻠﻰ‬ ‫ﯾﻌﻄﻲ‬ ‫اﻟﻤﺰدﺣﻢ‬ ‫اﻟﺨﻂ‬ ‫ﻓﻲ‬ ‫ﻟﻠﻨﻈﺎم‬ ‫اﻟﺪﯾﻨﺎﻣﯿﻜﻲ‬. ‫اﻟﻄﺎﻗﺔ‬ ‫ﻧﻈﺎم‬ ‫ﺗﺤﻠﯿﻞ‬ ‫أدوات‬ ‫ﻣﺠﻤﻮﻋﺔ‬ ‫إﻟﻰ‬ ‫اﺳﺘﻨﺎدا‬ ، ‫ﻧﻈﺎم‬ ‫ﻋﻠﻰ‬ ‫اﻟﺪراﺳﺔ‬ ‫ﺗﻮﺿﯿﺢ‬ ‫ﺗﻢ‬ ً ٠ ‫اﻟ‬ ‫اﻟﻜﻠﻤﺎت‬ ‫ﻤﻔﺘﺎﺣﯿﺔ‬ : ‫اﻟﻤﺘﺰاﻣﻦ‬ ، ‫اﻷﻣﺜﻞ‬ ‫اﻟﺘﺪﻓﻖ‬ ‫أداة‬ ، ‫اﻟﻤﺤﻠﻲ‬ ‫اﻟﮭﺎﻣﺸﻰ‬ ‫اﻟﺴﻌﺮ‬ ، ‫اﻟﻄﺎﻗﺔ‬ ‫ﺗﺪﻓﻖ‬ ‫اﺳﺘﻤﺮار‬ ، ‫ﻟﻠﻨﻈﺎم‬ ‫اﻟﺪﯾﻨﺎﻣﯿﻜﻲ‬ ‫اﻷداء‬ ٠ 1. INTRODUCTION: The existing transmission networks often operate close to their limits. Hence, has an overall effect of deteriorating voltage profiles and decreasing system stability and security. This overall situation requires the review of traditional transmission methods and practices, and the creation