{"title":"STATCOM APPLICATION TO INCREASE VOLTAGE STABILTY OF WIND FARMS","authors":"Abdulfetah Abdela SHOBOLE","doi":"10.36222/ejt.1379560","DOIUrl":"https://doi.org/10.36222/ejt.1379560","url":null,"abstract":"The integration ratio of wind farms to the grid is increased tremendously derived by the need for cleaner and renewable energy. However, the stability of the grid is a major concern due to large wind and other renewable resource-based power plants. Thus, wind turbine generators must adhere to the regulations of other conventional forms of generation. To boost stability, especially voltage-based, Flexible AC Transmission Systems such as Static Var Compensators (SVC) or Static Synchronous Compensator (STATCOM) are put in the vicinity of the wind farm's connection point to the grid. This study is intended to model and simulate dynamically a wind farm using the Doubly Fed Induction Generator (DFIG) turbine type and STATCOM under faulty conditions. The model is implemented inside the DigSILENT Power Factory simulation tool. The results show that STATCOM can improve the voltage stability of wind farms at the point of connection to the grid.","PeriodicalId":496704,"journal":{"name":"European journal of technique","volume":"85 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135460691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DETERMINATION OF CONDENSATION AND ITS EFFECT ON INSULATION AND WALL ENVELOP LAYERS","authors":"Selman ÇAĞMAN, Ümit ÜNVER","doi":"10.36222/ejt.1295570","DOIUrl":"https://doi.org/10.36222/ejt.1295570","url":null,"abstract":"The condensation occurs between the building envelope layers is important for both human health and the functioning of the layers. Freezing of the condensed water in cold weather region like 3rd degree-day region means another solid layer that creates freeze-thaw effect. In this study, the amount of condensation between layers for the 3 most commonly used wall types is investigated in Kütahya. The condensation phenomena is determined by Glaser Diagram Method and the condensation amount is calculated by considering climatic data. Wall 3 gives the best result and that one has 0,001696833 kg/h.m2 at 0 ºC, it is 0,002142743 kg/h.m2 at -21 ºC condensed water amount due to low outside temperature.","PeriodicalId":496704,"journal":{"name":"European journal of technique","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135347067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Capacitated Network Traffic Assignment using Lagrange Neural Networks","authors":"Hasan DALMAN","doi":"10.36222/ejt.1320824","DOIUrl":"https://doi.org/10.36222/ejt.1320824","url":null,"abstract":"In this study, we utilize a neural network methodology to obtain user equilibrium for network traffic assignment problems with capacity constraints. The optimization problem associated with network traffic assignment is first transformed into a Lagrange problem. By considering the gradient method, a system of differential equations is obtained. Subsequently, the system of differential equations is solved using the Runge-Kutta method. The effectiveness of the proposed neural network approach is demonstrated through a numerical example.","PeriodicalId":496704,"journal":{"name":"European journal of technique","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135786795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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