Adaptive reactive power control for mitigating voltage rise in distribution networks with high photovoltaic penetration

This thesis addresses the escalating challenge of voltage rise on electrical distribution networks, primarily attributed to high photovoltaic (PV) penetration. As the global shift towards renewable energy accelerates, the integration of PV systems in existing power grids has become increasingly prevalent, posing significant technical challenges. The primary focus of this research is the development, evaluation, and validate of an innovative adaptive reactive power control technique designed to mitigate voltage rise issues on these PV-intensive distribution networks. The study begins with a literature review, highlighting the limitations of traditional voltage regulation methods in mitigating the voltage rise and existing reactive power control strategies. It then introduces a novel adaptive reactive power control technique, distinguished by its dynamic approach that continuously updates reactive power references based on real-time network conditions. This technique depends on both Volt-Var and Watt-Var components, allowing for efficient voltage rise mitigation. Using MATLAB/Simulink and OpenDSS, the adaptive control technique is rigorously evaluated in two distinct scenarios: a small test distribution network and the Malaysian low voltage distribution network. The results demonstrate the technique's superior performance in maintaining voltage stability within acceptable limits under various PV penetration levels, outperforming existing reactive power control methods. The research contributes significantly to the field of power systems engineering by providing a practical solution for the sustainable integration of PV systems into existing distribution networks. It offers a pathway towards enhancing grid stability and reliability in the face of growing renewable energy adoption. The findings are particularly relevant for countries experiencing rapid growth in PV installations. In conclusion, this thesis not only addresses a pressing challenge in the modern power grid but also lays the groundwork for future research. It underscores the importance of innovative approaches in the ongoing evolution of power systems towards greater sustainability and resilience.

Text FK 2024 8 - Declaration Form.pdf Restricted to Repository staff only Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (1MB) Text FK 2024 8 - Full Text.pdf Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (6MB) Text FK 2024 8.pdf Restricted to Repository staff only Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (6MB) Official URL or Download Paper: http://ethesis.upm.edu.my/id/eprint/18972

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