International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 06 | Jun 2025
p-ISSN: 2395-0072
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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 ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - There are considerable problems that will be
energy sources. Among these, wind power has become the major front runner considering that it is abundant, as well as economical besides being technologically mature. The adoption of wind power into the national grid of the countries is growing globally and it is expected that the demand of energy will be met with decreased emission of carbon. Nevertheless, there are huge technical issues that are tied to assimilating wind energy into current electrical systems. The wind energy is non-generative and is also fluctuating. Such diversities make it problematic to operate the grid, particularly, regarding power quality and system stability. In this regard, through regulation of harmonics, voltage control and maintaining of reactive power balance in this integration of wind energy becomes eminent. The concern on the above problems has fuelled the interest in sophisticated power electronics and control techniques and increasingly much focus has gone to FACTS (Flexible AC Transmission System) devices and in particular Flexible AC Transmission System devices such as Static Synchronous Compensator (STATCOM) which has proved encouraging in dynamically shifting the inconsistency within the grids.
involved in integrating wind energy generation into the modern power grid, the nature of wind generation is intermittent and entails problems of power quality that would be experienced with regard to voltage instability, harmonic distortion, and reactive power imbalance. This study focuses on how a Static Synchronous Compensator (STATCOM) which is one of the important Flexible AC Transmission System (FACTS) devices can be used to aid in boosting the stability and performance of wind energy systems that are grid-connected. MATLAB/Simulink modeling and simulation-based study of a Point of Common Coupling (PCC) with wind farm and the use of STATCOM is done in a detailed manner. Among the operational scenarios we may have the changes in wind speed, disturbance in the load and even the grid faults which is modeled and evaluated in the proposed system. Simulation analysis indicates a marked reduction in the power quality parameters namely, Total Harmonic Distortion (THD) value has dropped down to 1.17% (previously 10.32%), and voltage regulation has been lowered to BE 2% (Previous 6.81%), and power factor has also improved quite considerably and the value is also near to unity. The study is also able to compare the traditional reactive power compensator techniques to STATCOM and it must be noted that the latter has better dynamic response and harmonic filtering properties. The given results prove that STATCOM can be a powerful and scalable tool to improve the resilience of the grid, make it compliant with the established IEEE and IEC, and in order to introduce the increased penetration of renewable resources into the grid. Key Words: STATCOM, Wind Energy Integration, Power Quality, Voltage Stability, Harmonic Distortion, Reactive Power Compensation, MATLAB Simulation.
Figure-1: Block Diagram of a Wind Power System Connected to the Grid.
1. INTRODUCTION 1.1 Background and Motivation
1.2 Problem Statement
The current state of the climate change and the overreliance on fossil energy sources has emerged as an important topic in the world as many nations are gradually moving towards sustainable and renewable
Nevertheless, irrespective of the benefit the wind energy poses environmentally and economically, it creates a number of issues to grid performance and reliability. Powers generated by wind have the tendency to fluctuate
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