Mansoura engineering journal.

Volume - 42 / No. 2


[9002877.] كود البحث : 9002877 - 2019/05/15
Current Status: Submitted
Modeling and Simulation of a Saturated Core Fault Current Limiter Integrated in a Typical Distribution System Based on PSCAD Environment /
تخصص البحث : General
  Mansoura engineering journal. / Volume - 42 - No. 2
  تاريخ تقديم البحث 15/05/2019
  تاريخ قبول البحث 15/05/2019
  عدد صفحات البحث 7
  Eid Gouda - مؤلف رئيسي
  Rasha ELbadawy
  Mahmoud Kandil
  Saturated Core Fault Current Limiter, PSCAD simulation, FCL modeling, Typical Egyptian Distribution
  Due to load increasing and generation extensions of the electrical networks, the fault current levels may be largely changed. So, the short circuit capacity may easily exceed the installed equipment interrupting capacity such as circuit breakers. Nowadays there are different methods for restoring the fault current normal values. The traditional methods in power utilities consider one of three options: (1) Replace installed equipment with higher rated equipment or, (2) Install series reactors or, (3) Replace the existing transformers with high impedance transformers. In this paper a Saturated Core Superconducting Fault Current Limiter (SCSFCL) will be presented as an efficient method for solving this problem so that replacing existing circuit breaker infrastructure can be avoided or postponed. This paper simulated the SCSFCL based on the PSCAD environment. An 11 kV West Delta Egyptian Distribution System in TANTA region is modeled as a typical system with the proposed simulated model of SCSFCL. The model parameters are adapted by the authors to restore the fault current levels as their values before the integration of the Distributed Generation (DG) units. The obtained results ensure that the model is easily used in other distribution systems. The results show also that the model performances can meet utility’s needs in mitigating fault current at all types of fault and different fault positions
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[9002878.] كود البحث : 9002878 - 2019/05/15
Current Status: Submitted
Optimization PI Controller Parameters For VSC-HVDC System based on Particle-Swarm-Optimization / تحسين قيم عناصر متحكم المعامل الطردي والتكاملي لمحول مصدر جهد عالي التيار المستمر بتعظيم سرب الجسيمات
تخصص البحث :
  Mansoura engineering journal. / Volume - 42 - No. 2
  تاريخ تقديم البحث 15/05/2019
  تاريخ قبول البحث 15/05/2019
  عدد صفحات البحث 7
  Eid Gouda - مؤلف رئيسي
  I. Mansy
  Ayman Bdrawy
  Optimization; HVDC-VSC; DC-link; PI; PSO. MATLAB, Simulink
  Nowadays the HVDC systems are considered as basic devices in the new electrical networks because they could solve many problems such as connections of different frequencies regions. Networks stability is the aim of many researchers. They used conventional methods such as PI controllers for this purpose in these methods. The parameters of PI controllers were assumed depending on the operator’s experiences. The authors of this paper optimized the system parameters using Particle Swarm Optimization (PSO). A comparative study between the conventional and optimized systems will be presented. The obtained results show the efficient performance of the designed system
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