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Register a new userTransmission System Containing VSCHVDC Analysis and Simulation
تمثيل شبكات النقل الكهربائية الحاوية على أنظمة VSC-HVDC
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Mhd Mouffak AlKhateeb
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يعد استخدام أنظمة النقل بالتيار المستمر عموماً ونظام VSC-HVDC خصوصاً ضرورة ملحة في الشبكات الكهربائية التي يتم العمل على تحسين مردودها لأن لها فوائد جليلة لا تنحصر في ربط الشبكات ذات الترددات المختلفة وربط أنظمة الطاقات المتجددة مع الشبكة بل إنها تتيح التحكم بجريان الاستطاعة في خطوط الشبكة بما يفيد في تقليل الضياعات وتحقيق الجريان الأمثل للاستطاعة في الشبكات. كما أن للتحكم بجريان الاستطاعة فوائد عظيمة وخاصة في الشبكات التي تحوي على أكثر من مزود للطاقة وبالتالي من الممكن تحقيق فوائد اقتصادية وكذلك الأمر بالنسبة لجدولة استيراد الطاقة من الدول المجاورة مما ينعكس إيجابياً على استقرار الشبكات. تم في هذا البحث التعرض إلى أنواع HVDC ومقارنتها ثم تم نمذجة شبكة معيارية ثم تم إضافة نظام VSC-HVDC وبعدها تم اقتراح برنامج حاسوبي متكامل يقوم بتخزين مصفوفة ثلاثية الأبعاد تمثل الاستطاعة الفعلية والاستطاعة الردية والضياعات في الشبكة ثم رسم هذه المصفوفة رسم ثلاثي الأبعاد مما يمكننا من مسح مجال عمل نظام VSC-HVDC وبالتالي تقصي نقطة العمل التي تعطي أصغر ضياع للشبكة المدروسة.
The use of DC and especially VSC-HVDC systems are considered as urgent and important in electrical networks to improve their efficiency because they have great benefits not only in connecting different frequency networks and connecting the renewable energy to the network, but also control power flow in a way that reduce the losses and achieve the optimal flow electrical networks especially in networks that contain more than one energy supplier and thus can achieve economic benefits as well as the scheduling of importing energy from another that may improve network stability. Types of HVDC system and a comparison between them are achieved in this research after that simulation IEEE with VSCHVDC, and integrated computer program was proposed this program can create and store three-dimension matrix so the working area can be scanned so minimum loss working point can be detected.
References used
Bahrman, Michael, Abdel-Aty Edris, and Rich Haley. "Asynchronous back-to-back HVDC link with voltage source converters." In Minnesota Power Systems Conference. 1999.
Sood, Vijay K. HVDC and FACTS controllers: applications of static converters in power systems. Springer Science & Business Media, 2006
Cole, Stijn. "Steady-state and dynamic modelling of VSC HVDC systems for power system simulation." Katholieke Universiteit Leuven, Leuven-Heverlee, PhD. Thesis (2010).
Sellick, R. L., and Markus Åkerberg. "Comparison of HVDC Light (VSC) and HVDC Classic (LCC) site aspects, for a 500MW 400kV HVDC transmission scheme." (2012): 23-23.
Guo, Chunyi, Yi Zhang, Aniruddha M. Gole, and Chengyong Zhao. "Analysis of dual-infeed HVDC with LCC–HVDC and VSC–HVDC." IEEE Transactions on Power Delivery 27, no. 3 (2012): 1529-1537.
Flourentzou, Nikolas, Vassilios G. Agelidis, and Georgios D. Demetriades. "VSC-based HVDC power transmission systems: An overview." IEEE Transactions on power electronics 24, no. 3 (2009): 592-602.
Kalitjuka, Tatjana. "Control of voltage source converters for power system applications." Master's thesis, Institutt for elkraftteknikk, 2011.
Zhang, Lidong. "Modeling and control of VSC-HVDC links connected to weak AC systems." PhD diss., KTH, 2010.
Anderson, Paul M., and Aziz A. Fouad. Power system control and stability. John Wiley & Sons, 2008
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