Electrical Engineering

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https://hdl.handle.net/20.500.14540/17982

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Browsing Electrical Engineering by Author "Dhakal, Prabin"

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    The Optimal Placement of a Photovoltaic-integrated Dynamic Voltage Restorer for the enhancement of Power Quality within the Distribution System. A Case Study of 11kV Tanahusur Radial Distribution Feeder and 11kV Simara Industrial Feeder
    (I.O.E. Pulchowk Campus, 2023-12) Dhakal, Prabin
    In the context of power distribution, maintaining high Power Quality (PQ) is crucial. Voltage fluctuations like sags, swells, and harmonics can disrupt PQ. To address these issues, a sophisticated solution involving a Dynamic Voltage Restorer (DVR) has been devised. The DVR serves as a dynamic energy store, utilizing solar energy from Photovoltaic (PV) cells. To optimize this process, a smart algorithm called Maximum Power Point Tracking (MPPT) is integrated with Incremental Conductance method. This algorithm ensures that solar energy is harnessed efficiently and the system operates at its peak performance. To manage reactive power generation, a Voltage Source Inverter (VSI) is introduced. This component utilizes Pulse Width Modulation (PWM) techniques for precise control, enabling it to inject reactive power into the grid. For improved control precision, a Space Vector Pulse Width Modulation (SVPWM) strategy is implemented. This enhances the synchronization of voltage injection, mitigating phase angle mismatches and reducing harmonic distortions. Ensuring synchronization and power factor correction is achieved through a Proportional Resonant (PR) controller. This controller, when cascaded with a harmonic compensator, effectively minimizes undesirable harmonic components in the system's output current. This aids in maintaining a consistent power factor and a higher quality power output. The overall system's performance and effectiveness are evaluated through simulation using MATLAB 2023a software.