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Register a new userEvaluating Performance and Reliability of Storage System with Supercapacitors: Application in Trolleybuses
تقييم أداء نظام التخزين بالمكثفات فائقة السعة و موثوقية: تطبيق في الحافلات الكهربائية
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ياسر دياب( باحث )
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إن الهدف من هذا البحث هو دراسة موديول مكثفات فائقة السعة و تصميمه لاستعادة قدرة الكبح في الحافلات الكهربائية. و قد شحن موديول المكثفات فائقة السعة بواسطة مقطع إلكتروني رافع-خافض للتوتر عكوس بالتيار. صممت القيادة و عناصر التنعيم في المقطع آخذين بالحسبان الطبيعة اللاخطية للمكثفات فائقة السعة. من أجل استعادة قدرة الكبح بسرعة يشحن موديول المكثفات فائقة السعة بتيار ثابت، و أما التفريغ فيكون بتوتر ثابت على قضبان التيار المستمر في الحافلة. جرى نمذجة موديول المكثفات فائقة السعة بمختلف مراحل عمله (إقلاع، وتغذية الأجهزة المساعدة، وكبح) في بيئة برنامج SIMPLORER. و استنتاجنا، من نتائج النمذجة، قيم التشغيل للعوامل (مثل التوتر و التيار و درجة الحرارة) و لعناصر الموديول المدروس جميعها (ديودات، و ترانزستورات IGBT مكثفات تقليدية، و مكثفات فائقة السعة). أخيراً، قدرت قيمة معدل العطل و الموثوقية لعناصر الموديول بالاعتماد على قيم عوامل التشغيل المختلفة. كما حللت أيضاً أعطال الموديول.
The objective of this work is to study and design a module of super capacitors for recovering the braking energy in trolleybuses. The module of super capacitors is charged and discharged by Buck-Boost converter that is reversible in current. The control and the smoothing elements of the converter are designed with taking into account the non-linear nature of super capacitors. To recover quickly the braking energy, the module is charged with constant current, while the discharging is done with constant voltage on the DC link of trolleybus. The module of super capacitors in its different operations (starting up, powering auxiliary equipments, braking) is simulated in the SIMPLORER environment. As a result, the different operating values (as voltage, current and temperature) are determined for the elements of the studied module (diodes, IGBTs, capacitor, super capacitors). Finally, the failure rate and the reliability of the module elements are estimated depending on the different operating factors. The module faults is analyzed.
References used
Y. Diab, “Etude et modélisation des supercondensateurs : Appilcations aux systémes de puissance’‘, Université Claude Bernard, Lyon, Thèse de doctorat 2009
X. Andrieu, L. Moreau, B. Pichon, ’‘Etude comparative d’électrodes de carbone pour supercapacités à électrolyte organique’‘, Journées d’Etudes sur les Supercondensateurs, Paris/France, 1998
Epcos, “UltraCapTM Double Layer Capacitors, A New Energy Storage Device for Peak Power Applications’‘, Product Profile EPCOS, 2002
E. Wolfgang, “Energy Storage on board of Trolleybuses’‘, Proceedings of the 2nd European Symposium on Super Capacitors & Application (ESSCAP’2006), Lausanne, Switzerland, 2006
P. Kreczank, “Etude de la fiabilité et du vieillissement d’un système de stockage par supercondensateurs pour l’alimentation partielle et ponctuelle d’un trolleybus grâce à la récupération de l’énergie de freinage. Approche du composant au système de stockage’‘, Université Claude Bernard, Lyon, Thèse de doctorat 2011
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