PSCAD Yazılımı Kullanarak PEM Yakıt Hücresinin Modelinin Ve Benzetiminin Gerçekleştirilmesi

Yakıt pilleri kimyasal enerjiyi direkt olarak elektrikselenerjiye dönüştüren sistemlerdir. Bu çalışmada termodinamikve elektrokimyasal temellere bağlı olarak PEM (PolimerElektrolit Membran) yakıt piline ait dinamik model PSCADyazılımı kullanarak gerçekleştirilmiştir. Dinamik modelin DCyükteki davranışı incelenmiştir. Bu amaçla PEM yakıtpilininin sabit DC yükteki elektriksel karakteristiği analizedilmiştir. Daha sonra ise yakıt pili modelinin değişken yükaltındaki çalışması ile ilgili simülasyonlar yapılmıştır.Fuel cells convert chemical energy directly into electricalenergy. In this study the dynamic model of PEM (PolymerElectrolit Membran) fuel cell was developed using PSCADsoftware by thermodynamic and electrochemical foundations.The behavior of dynamic model based on Nernst equation wasexamined under DC load. For this purpose the electricalbehavior of PEM fuel cell was analyzed under constant DCload. Then variable DC load simulations were done

Modeling and Simulation of SOFC using PSCAD

In recent years, an interest toward fuel cell studies has grown because of increasing energy demand and fuel cells are clean and efficient sources of electricity. In this study, the electrical characteristic of solid oxide fuel cell (SOFC) is analysed. The dynamic model of solid oxide fuel cell is built using PSCAD software. DC performance of SOFC is tested under constant load. Then variable DC load connected to SOFC model and fuel cell response investigated. The power conditioning unit, which includes DC DC converter and DC-AC inverter, is modelled using PSCAD software. SOFC model and power conditioning is connected to analyse AC performance of SOFC model. The AC performance of SOFC model is tested under an AC load through the transmission line of 400 V at the length of 10 km. SOFC voltage is boosted with DC-DC boost converter and converter output voltage is kept constant at 380 V. This voltage is converted to AC form with three phase inverter. DC-AC inverter phase to phase output voltage rms value is set to 400 V. PI controller is used for converter and inverter control

Modeling and simulation of grid connected solid oxide fuel cell using PSCAD

Solid oxide fuel cell (SOFC) is being developed for a wide variety of applications because of their high efficiency, reliability, and fuel adaptability. In this paper, a grid connected SOFC system is presented by using PSCAD software. The power conditioning unit (PCU) is used for simulation studies and also the transformer is used for electrical isolation. The simulation studies of the SOFC dynamic model are investigated for three case studies. In the first simulation study, the SOFC dynamic model is connected to constant and variable DC loads without PCU. The second simulation study is performed for three phase AC load conditions. The AC performance of SOFC is tested under an AC load through the transmission line of 400V at the length of 10 km. The last simulation study is implemented for the grid connected SOFC system. In the grid connected case study, a three bus system, which includes an infinite bus, a load bus and a fuel cell bus, is formed under AC load conditions. The results show the fast response capabilities of the grid connected SOFC system in different case studies and various load types. (C) 2014 AIP Publishing LLC.Solid oxide fuel cell (SOFC) is being developed for a wide variety of applicationsbecause of their high efficiency, reliability, and fuel adaptability. In this paper, agrid connected SOFC system is presented by using PSCAD software. The powerconditioning unit (PCU) is used for simulation studies and also the transformer isused for electrical isolation. The simulation studies of the SOFC dynamic modelare investigated for three case studies. In the first simulation study, the SOFCdynamic model is connected to constant and variable DC loads without PCU. Thesecond simulation study is performed for three phase AC load conditions. The ACperformance of SOFC is tested under an AC load through the transmission line of400 V at the length of 10 km. The last simulation study is implemented for the gridconnected SOFC system. In the grid connected case study, a three bus system,which includes an infinite bus, a load bus and a fuel cell bus, is formed under ACload conditions. The results show the fast response capabilities of the gridconnected SOFC system in different case studies and various load types.</p

Examination of the grid-connected polymer electrolyte membrane fuel cell's electrical behaviour and control

Fuel cells (FCs) are considered as one of the most promising sources of electrical energy that can meet environmental constraints. One of the important steps to ensure clean energy is seamless power transfer from the FC to the grid. In this study, the behaviour of the FC under AC load and grid connection of FC system is simulated. Required interface for FCs' grid connection is performed with PSCAD software. For this purpose, polymer electrolyte membrane (PEM) FC model is developed in PSCAD software. Power converter units are designed to supply DC and AC loads. Control structures are developed for DC-DC converter and DC-AC inverter models in PSCAD. Power conditioning units are separately controlled by proportional-integral controller. The electrical behaviour and control of FCs are investigated and simulated using PSCAD software. Then a developed PEM FC system model is tested for AC load conditions. The PEM FC system is connected to grid and the behaviours of grid connected FC system are examined.Fuel cells (FCs) are considered as one of the most promising sources of electrical energy that can meet environmental constraints. One of the important steps to ensure clean energy is seamless power transfer from the FC to the grid. In this study, the behaviour of the FC under AC load and grid connection of FC system is simulated. Required interface for FCs&#39; grid connection is performed with PSCAD software. For this purpose, polymer electrolyte membrane (PEM) FC model is developed in PSCAD software. Power converter units are designed to supply DC and AC loads. Control structures are developed for DC&ndash;DC converter and DC&ndash;AC inverter models in PSCAD. Power conditioning units are separately controlled by proportional&ndash;integral controller. The electrical behaviour and control of FCs are investigated and simulated using PSCAD software. Then a developed PEM FC system model is tested for AC load conditions. The PEM FC system is connected to grid and the behaviours of grid connected FC system are examined.</p

Rüzgar Enerji Santrallerinin Ekonomik Yük Dağıtımına Etkisi" Fırat Üniversitesi Elektrik- Elektronik Bilgisayar Sempozyumu

Bu &ccedil;alışmada r&uuml;zgar enerjisinin toplam y&uuml;k dağılımı maliyetine etkisi araştırılmıştır. Bu etkiyi g&ouml;sterebilmek i&ccedil;in se&ccedil;ilen 6 jenerat&ouml;rl&uuml; bir test sistemde 3 farklı &ccedil;alışma yapılmıştır. İlk olarak iletim kayıpları ihmal edilerek hesaplanan fiyat fonksiyonu, ikinci olarak iletim kayıpları dahil edilerek hesaplanmıştır. Son &ccedil;alışmada ise r&uuml;zgar enerjisi sisteme dahil edilmiş ve toplam fiyat fonksiyonuna olan etkisi incelenmiştir. Yapılan ekonomik y&uuml;k dağıtım analizi Newton metodu ile MATLAB programı kullanılarak ger&ccedil;ekleştirilmiştir. Sim&uuml;lasyon sonu&ccedil;ları literat&uuml;rde verilen &ccedil;alışmalar ile &ouml;rt&uuml;şt&uuml;ğ&uuml; g&ouml;r&uuml;lmektedir.</p