Document Details

Document Type : Thesis 
Document Title :
A POINT OF COMMON COUPLING VOLTAGE MODULATED DIRECT POWER CONTROL METHOD FOR PV INVERTER OF GRID-CONNECTED MICROGRID WITHOUT PHASE LOCKED LOOP SYSTEM
طريقة التحكم في القدرة المباشرة المعدلة بجهد الاقتران المشترك للعاكس الكهروضوئي للشبكة الدقيقة المتصلة بالشبكة بدون نظام الحلقة المغلقة الطور
 
Subject : Faculty of Engineering 
Document Language : Arabic 
Abstract : Voltage Source Inverters (VSI) are vital components of grid-connected MicroGrid (MG) to integrate Distribution Generation (DG) units with the utility grid. However, to ensure efficient VSI operation, fast responsive, stable and robust controllers are required. Though multiple power controllers had been proposed for VSIs, controlling instantaneous reactive and real power of Microgrid connected to grid, but most of these controllers are modelled by integrating the dq current control methods in Phase Locked Loop (PLL) systems. The controller suffers from slow dynamic response and creates large steady-state oscillations on the output powers of the inverter. These issues have been addresed in this research work, where we propose a Direct Power Control (DPC) methodology for a PV inverter of grid-connected MG. We designed this method by modulating the Point of Common Coupling (PCC) voltage of the MircroGrid without employing the Park Transformation and PLL system. We term the proposed method as PVMT-DPC, or PCC Voltage Modulated Theory (PVMT) based DPC. When compared to the traditional PLL-based controllers, the tracking efficiency of the PVMT-DPC is must improved. Furthermore, due to the elimination of PLLs from PVMT-DPC, the computatinal complexity and the steady-state variations in the output power of MicroGrid’s PV inverter are significantly reduced. Finally, we validate the performance of PVMT-DPC method by simulating it in Opal Real-Time (Opal-RT) Simulator. 
Supervisor : Dr. Muhyaddin Jamal Rawa 
Thesis Type : Doctorate Thesis 
Publishing Year : 1445 AH
2023 AD 
Added Date : Tuesday, October 31, 2023 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
عبدالله علي الحسينيAlhussainy, Abdullah AliResearcherDoctorate 

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 49461.pdf pdf 

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