International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 05 | May 2025
p-ISSN: 2395-0072
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A REVIEW OF ENHANCING POWER QUALITY OF GRID-CONNECTED WIND ENERGY SYSTEMS USING STATCOM FOR IMPROVED STABILITY AND PERFORMANCE Sweta Yadav1, Dr. Imran Khan2, Dr Malik Rafi3 1Master of Technology, Electrical Engineering, Azad Institute of engineering and technology Lucknow, India 2Assistant Professor, Electrical Engineering, Azad Institute of engineering and technology Lucknow, India 3Professor, Electrical Engineering Department, RRIMT, Lucknow , India
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Abstract - With the rapid connection of wind energy into
generation sources, a wind power’s generation output is highly dependent on meteorological conditions which causes a variability in energy production directly affecting the quality and stability of the electrical grid. With the increasing share of wind energy in power generation, the requirements on reliable power delivery, maintaining voltage and frequency standards as well as minimizing power disturbances are of prime importance for grid management.
electrical grids, new challenges related to power quality, stability and reliability are introduced. The presence of variability in wind generation subjects the system to voltage fluctuations, harmonic distortions, reactive power imbalance, and poor system stability requiring advanced techniques to mitigate many of these problems. Of all the Flexible AC Transmission System (FACTS) devices, the Static Synchronous Compensator (STATCOM) is a very efficient technology to improve the power quality of grid-connected wind energy system. This review paper comprehensively analyzes the STATCOM role in the solution of essential power quality issues, improvement of the system stability, and compliance with the modern grid codes. STATCOM Operational Principles, control strategies, latest technological development and various case studies on practical implementation is systematically discussed in the paper. In addition, it reports on the current research challenges, the technological limitations and outlines future research directions that will enhance integration of intelligent control concepts and low cost STATCOM solutions. However, it also aspires to be a key document for researchers, engineers, and policymakers trying to advance the performance and reliability of power systems built around renewables.
Figure-1: STATCOM.
1.2.Importance of Power Quality and Stability in Modern Electrical Grids Modern power systems are dependent on robust, efficient and reliable operation and thus power quality and grid stability should be fundamental in the operation of the power system design. Gladly, high power quality assures that electrical equipment functions within its specified voltage, frequency, and harmonic limits, therefore extending the equipment life as well as system efficiency. On the rare occasions when large scale outages are experienced it is important to have some stability in order to minimize the duration and magnitude of the outages and to maintain continuous service to the consumers. Integrating high penetrations of wind energy without proper measures related to mitigation can result in large power quality problems; voltage sags, swells, flicker, harmonics and reactive power deficiency. In addition, both these disturbances affect sensitive consumer loads and can damage the operational security of the grid itself. Thus, a powerful integration of renewable energy sources such as wind into the power grid necessitates more sophisticated integrated control strategies and dynamic
Key Words: Wind Energy Systems, Power Quality Improvement, Grid Stability, Static Synchronous Compensator (STATCOM), Reactive Power Compensation, FACTS Devices, Renewable Energy Integration.
1. INTRODUCTION 1.1.Background Increases in the global demand of green energy solutions have led to expand the integration of the renewable energy sources in the modern electrical grids. Of these sources, the oil wind energy is among the most widely adopted technologies because it provides environmental benefits, technological progress and cost competitive. Onshore and offshore wind farms are being constructed in countries around the globe to lessen dependency on fossil fuel and to achieve climate change goals. Although wind energy production is intermittent and variable, grid operators still face special challenges. Unlike conventional
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