Appropriate Placement of Fault Current Limiting Reactors in Different HV Substation Arrangements

Seyedi, Heresh; Tabei, Barzan

doi:10.4236/cs.2012.33035

Cited by 20 publications

(9 citation statements)

References 10 publications

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“…A few milliseconds spend of switching for limiting reactor impedance [10][11][12][13]. Limiting short-circuit in a large power grid by using SCCL device impact on the transient stability of the overall grid [14][15][16][17]. Reducing transmission angle by using series compensation for long AC lines may provide stability enhancement.…”

Section: B Super Conducting Current Limiter (Sccl)mentioning

confidence: 99%

Reducing Short Circuit Level in 400 kV Iraqi Grid System by Using FACTS Device

2019

IJCCCE

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Electrical power systems are different in their sizes because of their amount of generation power stations, substations, transmission lines and loads. Therefore, these factors may impact on short circuit levels values. Capacity of power stations and dummy transmission lines in Extra high voltage grid (400kV) of the Iraqi Electrical power grids cause high short circuit levels values such that exceed both rating of the peak and breaking capacity of switchgear equipment's. Reduction of short-circuit levels by using Fast-acting Flexible Alternating Current Transmission Systems (FACTS) types devices in power grids maintain the operation of power grids with acceptable value of short circuit levels for their electrical equipment's and preventing cascading event outages which may lead to blackouts. This paper mainly studies strategies on how to add Short Circuit Current Limiter (SCCL) device by determining its number, value and location of connection in power grids by programing with (PSS™E version 30.3 Package Program). IEEE 25-bus system is used for testing the adding series SCCL at power transmission lines method procedure. The results of adding series SCCL with power transmission lines give significant reducing short circuit levels for the stations have highest short circuit levels in order to prevent the blackouts of overall power grid.

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Section: B Super Conducting Current Limiter (Sccl)mentioning

confidence: 99%

Reducing Short Circuit Level in 400 kV Iraqi Grid System by Using FACTS Device

2019

IJCCCE

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“…Genel olarak, sistemde yapılan yanlış manevralar, atmosferik olaylar, canlıların teması veya diğer dış etkenler güç sistemlerinde arızalara neden olmaktadır. Güç sistemlerinde meydana gelen arızalarda, arıza akımı nominal akımın 5 ile 20 katına kadar ulaşabilmektedir (Seyedi & Tabei, 2012). Bu seviyelere ulaşan arıza akımları sistem donanımlarının zarar göreceği büyüklükteki termal gerilimlere ve elektrodinamik kuvvetlere maruz kalmasına neden olmaktadır (Şen & Özcan, 2020).…”

Section: Introductionunclassified

Rezistif Süperiletken Arıza Akım Sınırlayıcılarının MATLAB/SIMULINK’te Modellenmesi

Terzioğlu¹,

Gürbüz²,

Deniz³

2021

European Journal of Science and Technology

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Öz Güç sistemlerinde meydana gelen arızaların sebep olduğu yüksek akımlar, sistem ve sistemdeki elemanlar için tehlike oluşturmaktadır. Arıza akımlarının sınırlandırılması; bu yüksek akımların zorlayıcı termal ve dinamik etkilerinden, sistem ve sistem elemanlarının korunması anlamına gelmektedir. Literatürdeki çalışmalar incelendiğinde, arıza akımlarının sınırlandırılması için birçok çalışma yapıldığı görülmektedir. Bu çalışmaların ortak amacı, sistemin güvenliğini ve güvenilirliğini sağlamaktır. Elektrik enerjisinin artan kullanımı, güç sistemlerinin sürekli genişlemesine ve karmaşıklığına yol açmaktadır. Bununla birlikte, arıza akımı sınırlayıcıları sürekli gelişen güç sistemlerinde giderek daha önemli hale gelmektedir. Mevcut sistemde herhangi bir değişiklik yapılmadan arıza akımı sınırlayıcıları sayesinde işletme sürekliliği sağlanabilir. Arıza akımı sınırlayıcıları birçok güç sistemi elemanı gibi, gerçek sistemde kullanılmadan önce sanal ortamlarda modellenerek çalışma performansları ve gerekli parametrelerin tespiti yapılmaktadır. Bu amaçla farklı SIMULINK süperiletken arıza akım sınırlayıcı (SFCL) modelleri kullanılarak sistem parametrelerinde sebep oldukları farklı etkiler 14 baralı IEEE sisteminde incelenmiştir.

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“…If the short circuit levels exceed the maximum designed short-circuit ratings of the switchgear, therefore, widespread power blackouts may occur. Furthermore, fault level is a measure of network robustness [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…One splitting in AMN choice2: (16443 busbar) supplied four transmission lines with (16428 (4BGE)), (17403 (4DAL)) and two lines with (18406 KUTP) and two power transformers (1 and 3), furthermore, (16888 busbar) supplied two transmission lines with (16419 (4BGS)) and (16471 (BSMG-1) busbars) and two power transformers (2 and 4) as shown in Figures (19 and 20). Figure (23 and 24) for choice (1) and (26 and 27) for choice (2).…”

mentioning

confidence: 99%

Reducing Short Circuit Levels by Using System Splitting Strategies

Ali

Al-Aasam

2019

QJES

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Preliminary studies on Iraqi power system show a significant increase in the short circuit level at some of the grid substations and some power stations. This increasing results from the growth of the power generation and transmission systems in size and complexity. Islanding or splitting is dividing the power system into several islands inorder to reduce short circuit levels and avoiding blackouts. The main islanding problem is determining the location of proper splitting points and load balance and satisfaction of transmission capacity constraints for each islands.This paper mainly introduces new proposed splitting strategies of large-scale power systems by using (PSS™E version 30.3 PACKAGE PROGRAME), such that, make re-interconnection of 400KV super high voltage substation based on three-phase load flow to be minimum flow at splitting point and infeed fault current details method to control short circuit levels in Iraq power system without islanding the power system into isolated islands. Controlled islanding or splitting scheme is frequently considered as the final solution to avoid blackouts of power system.Simulation IEEE-25 bus and Iraqi power system used as the test systems for this method. Furthermore, simulation results show significant effectiveness on reducing short circuit levels with same time give stable splitting islands with same frequency for preventing the system blackouts.

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Appropriate Placement of Fault Current Limiting Reactors in Different HV Substation Arrangements

Cited by 20 publications

References 10 publications

Reducing Short Circuit Level in 400 kV Iraqi Grid System by Using FACTS Device

Reducing Short Circuit Level in 400 kV Iraqi Grid System by Using FACTS Device

Rezistif Süperiletken Arıza Akım Sınırlayıcılarının MATLAB/SIMULINK’te Modellenmesi

Reducing Short Circuit Levels by Using System Splitting Strategies

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