Publication: İstanbul marmaray raylı elektrik sistemlerinin iletim şebekesi üzerine etkisinin değerlendirilmesi
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Yüksek gerilim iletim sistemlerinin en önemli özelliği enerji
iletiminin kesintisiz olarak sağlanabilmesidir. Bu nedenle, iletim
sistemi minimum elektrik kesintisine sahip olmalıdır. Enerji
iletim sistemlerine bağlı orta gerilim şebekelerinde harmonikleri
azaltmak için mümkün olduğunca az elektrik kesintisi olmalıdır.
Elektrikli trenler, orta gerilim dağıtım şebekeleri tarafından
desteklenmektedir. Elektrik raylı sistemlerin dağıtım şebekesinde
oluşturduğu harmonikler iletim sistemini de etkiler. Raylı enerji
hatlarının birbirine bağlantılı bir yapıda olması, sistemdeki
arızaların oluşturduğu harmoniklerin iletim ve dağıtım şebekesi
üzerindeki etkisini artırmaktadır. Raylı sistemlerdeki herhangi
bir arızaya dağıtım şebekesinin koruma sistemleri ile müdahale
edilmektedir. Koruma sistemlerine bağlanan röleler, raylı
sistemde oluşan harmoniklerin en aza indirilmesini sağlar.
Dağıtım sistemi, iletim şebekesine bağlıdır. Dolayısıyla dağıtım
şebekesinde oluşan harmoniklerin azalması, iletim sistemi
üzerindeki etkilerin azalması anlamına gelmektedir.
Bu çalışmada öncelikle raylı elektrik sistemleri hakkında bilgi
verilecektir. Raylı sistemlerin bağlı olduğu elektrik bağlantılı
sistemler anlatılacaktır. Raylı sistemlerin arızaları ve bu arıza
anında meydana gelen harmonikler anlatılacak ve bu raylı
sistemlerin harmonik etkilerinin minimumda tutulması için ne
gibi önlemler alınması gerektiği hakkında bilgi verilecektir.
The most important feature of high voltage transmission systems is that energy transmission can be provided uninterruptedly. Therefore, the transmission system should have minimal power outages. Medium voltage networks connected to energy transmission systems should have as few power outages as possible to reduce harmonics. Electric trains are powered by medium voltage distribution networks. The harmonics generated by electric rail systems in the distribution network also affect the transmission system. The fact that the rail power lines are in an interconnected structure increases the effect of the harmonics created by the failures in the system on the transmission and distribution network. Any failure of the rail systems is intervened with the protection systems of the distribution network. Relays connected to protection systems ensure that harmonics occurring in the rail system are minimized. The distribution system is interconnected to the transmission network. Therefore, the decrease of harmonics formed in the distribution network means that the effects on the transmission system are reduced. In this study, information about rail electric systems will be given first. The electrical interconnected systems to which the rail systems are connected will be explained. The failures of the rail systems and the harmonics that occur at the time of this failure will be explained and information will be given about what measures to take to keep the harmonic effects of these rail systems to a minimum.
The most important feature of high voltage transmission systems is that energy transmission can be provided uninterruptedly. Therefore, the transmission system should have minimal power outages. Medium voltage networks connected to energy transmission systems should have as few power outages as possible to reduce harmonics. Electric trains are powered by medium voltage distribution networks. The harmonics generated by electric rail systems in the distribution network also affect the transmission system. The fact that the rail power lines are in an interconnected structure increases the effect of the harmonics created by the failures in the system on the transmission and distribution network. Any failure of the rail systems is intervened with the protection systems of the distribution network. Relays connected to protection systems ensure that harmonics occurring in the rail system are minimized. The distribution system is interconnected to the transmission network. Therefore, the decrease of harmonics formed in the distribution network means that the effects on the transmission system are reduced. In this study, information about rail electric systems will be given first. The electrical interconnected systems to which the rail systems are connected will be explained. The failures of the rail systems and the harmonics that occur at the time of this failure will be explained and information will be given about what measures to take to keep the harmonic effects of these rail systems to a minimum.
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KIYAK İ., Çelik M. Z. , \"İstanbul Marmaray Raylı Elektrik Sistemlerinin İletim Şebekesi Üzerine
Etkisinin Değerlendirilmesi\", ELEKTRİK-ELEKTRONİK ve BİYOMEDİKAL MÜHENDİSLİĞİ KONFERANSI_22, Bursa, Türkiye, 24 Kasım 2022, ss.1-4
