Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092344220200611Forward Providing Environmental Rating Systems for Historic Buildings.1119501610.21608/bfemu.2020.95016ENAmira ElMetwalyElZeharyBSc, of Dep of Architectural Engineering ,Faculty of Engineering Mansoura University2012Mohammed AbdelrahmanElMekaweyAssociated Professor, Department of Architecture, Faculty of Engineering, Mansoura University EgyptMohammed AliKhalilLecturer of Arch. Department of Architectural Engineering , Faculty of Engineering, Mansoura UniversityJournal Article20190128<strong>The heritage buildings are more sustainable than the modern ones, since the designers were using natural and non-artificial ways to fulfill thermal and psychological comfort. Nowadays, during the restoration and conservation operations the environmental value of these buildings is neglected or not a priority. As there is no specific system that respect the situation of the heritage, buildings while restoration that would make the building use a huge amount of energy to do it is functions. We cannot deal with the heritage buildings the same way we are dealing with the moderns, because of it is value, functions and materials are different.</strong><br /> <br clear="ALL" /> <strong>This research is aiming to state standards that should be considered while doing Environmental Impact Assessment and specify the design aspects that may affect the reuse of heritage buildings, and analyze the current environmental impact assessment to give recommendations to create special environmental rating system for the heritage building<em>s</em></strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092344220200611Practical Transient State Assessment for Induction Motors Starting in Medium Voltage Networks.199501910.21608/bfemu.2020.95019ENMahmoud SaeedEl-HayesAuthor graduated from faculty of engineering, Kafr El-Sheikh University. He is doing a Master degree at faculty of engineering, Mansoura University, Mansoura, Egypt.Eid AbdelbakiGoudaElectrical Engineering Department, Mansoura University, Faculty of Engineering, Mansoura, P.O. Box 35516, EgyptSobhy MohamedAbdelkaderElectrical Engineering Department, Mansoura University, Mansoura, EgyptGabr MohamedAbdulsalamElectrical Engineering Department, Mansoura University, El-Mansoura, 36615, EgyptJournal Article20181227<strong>This paper presents a modelling and experimental verification system for a group of induction motors during starting in medium voltage networks including its effects on other nearby running units in different operating conditions. The simulation model is based on a real-life case study which is an agricultural drain pump station. The dynamic model was built with MATLAB®/SIMULINK® where a thorough performance analysis can be achieved. For system verification, the simulation curve results were compared with real-life data curves which were recorded by a suitable device located on worksite. The verified model was used to perform six practical scenarios based on the real station’s operating instructions. For each studied scenario, a group of parameters such as voltage dip, its duration and voltage regulation are discussed in detail and compared in a tabular form considering the recommended adjustments for the protection relay settings</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092344220200611Optimal Allocation of Multiple D-STATCOM in Distribution System Using PSO.10189502010.21608/bfemu.2020.95020ENMohammed NaserAbdraboElectrical Engineer, Suez Canal Authority, Egypt, +201092910947Ahmed YoussifHetataLecturer in Electric Engineering Dept. Faculty of Engineering, Mansoura Univ., EgyptSahar SedkyKaddahProf, Electrical Engineering Department, Faculty of Engineering Mansoura University, Egypt, She is the head of Electrical Engineering DepartmentMohammed IbrahimElsaidProf, Electrical Engineering Department, Faculty of Engineering Mansoura University, EgyptJournal Article20190228<strong>In this paper, the Particle Swarm Optimization (PSO) is proposed to obtain the optimal number of Distribution Static Compensator (D-STATCOM) devices, sizes and locations in order to minimize total power losses, bus voltage deviations, and overloaded lines in the radial distribution system with Distributed Generations (DGs). The reactive power compensation is implemented using an effective technique based on the Loss Sensitivity Factor (LSF) as well as the proposed PSO technique. The validity of the proposed technique is examined on IEEE-33 bus radial distribution systems and modified with DG connection at different buses representing various cases studies. All simulations are done using a coded program using MATLAB where the modeling of D-STATCOM is tested and verified. The DG penetration levels, the voltage profile and total power losses of the distribution system are compared before and after D-STATCOM compensation</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092344220200611Improving Voltage Stability of Doubly Fed Induction Generator - based Wind Farm using STATCOM.19249502210.21608/bfemu.2020.95022ENIman FawziElzemeityresearcher at Mansoura university, faculty of Engineering Electrical Engineering DepartmentMohamed FawziKotblecturer at Mansoura university, faculty of Engineering Electrical Engineering Department0000-0002-6075-9049Sahar SedkyKaddahProf, Electrical Engineering Department, Faculty of Engineering Mansoura University, Egypt, She is the head of Electrical Engineering DepartmentMagdiEl-SaadawiElectrical Engineering Department-Faculty of Engineering-Mansoura UniversityJournal Article20190421<strong>Wind power is one of the most promising renewable resources and Doubly Fed Induction Generator (DFIG) is considered the most cost effective generator for connecting wind power to the grid as it has advantages over other types of wind generators such as operating under variable wind speeds, moderate size of power electronics, and complete control of active and reactive power. But it has consequences on the performance of power system especially power system stability. This paper states the influence of DFIG location on small signal stability using Eigenvalue analysis. Then, Evaluating PV Curve of critical bus as an indicator to state the impact of integrating wind power through DFIG on the voltage stability of power system under different Penetration levels. Besides approving the optimal Mvar for each penetration level to operate the system with wind power in a stable way using trial and error method. The proposed simulation is tested on IEEE 39 bus test system using DIgSILENT PowerFactory software with five penetration levels of DFIG to examine: 4%, 12%, 21%, 31% and 41%.</strong>