Dynamic Voltage Restorer for Power System Harmonic Elimination with Interline Capability

Problem Definition

Problem Description: One of the major problems faced in power systems is voltage sag and other power quality issues, which can cause damage to utility equipment and disrupt the functioning of the system. Traditional systems are not always effective in eliminating these issues as voltage sag remains constant and can be caused by various factors such as unbalanced loads or sudden increase in power demand. This necessitates the use of external devices such as dynamic voltage restorers (DVRs) to compensate for power quality issues. However, the use of DVRs in power systems comes with drawbacks and modifications are needed to improve their effectiveness. Thus, there is a need to design and simulate an advanced dynamic voltage restorer for harmonic elimination in power systems to address these challenges and improve power quality.

Proposed Work

The proposed work aims at designing and simulating an advanced dynamic voltage restorer for harmonic elimination in power systems. As power quality becomes a crucial factor in modern technology, traditional systems often encounter voltage sag issues which can lead to various power quality problems. This research focuses on utilizing a voltage source inverter based dynamic voltage restorer connected to a three-phase transmission line to mitigate voltage variations such as sag and swell by injecting three-phase voltage into the transmission line. The study includes a MATLAB-based simulation for designing traditional DVR systems and introduces an upgrade in the form of Interline DVR systems to address the limitations of traditional DVRs. A comparative analysis is conducted to examine the impact on voltage of both traditional and proposed DVR systems.

This work falls under the categories of Electrical Power Systems and MATLAB Based Projects, making it relevant for M.Tech and PhD Thesis research work. The modules used for this research include Basic Matlab and MATLAB Simulink.

Application Area for Industry

This project can be applied in various industrial sectors such as power generation, distribution, and renewable energy systems. Voltage sag and power quality issues are common challenges faced by industries reliant on electricity for their operations. For example, manufacturing plants, data centers, and hospitals all require stable and high-quality power supply to ensure uninterrupted operations. By implementing the proposed advanced dynamic voltage restorer for harmonic elimination, these industries can effectively mitigate voltage variations and ensure a consistent power supply. The use of a voltage source inverter based dynamic voltage restorer can help in compensating for power quality issues such as sag and swell by injecting the necessary voltage into the transmission line.

This not only prevents damage to equipment but also enhances the overall efficiency and reliability of the power system. The benefits of implementing these solutions include improved power quality, reduced downtime due to voltage variations, and increased productivity in industrial operations. The upgrade from traditional DVR systems to Interline DVR systems allows for more effective compensation of power quality issues, leading to a more stable and reliable power supply. The MATLAB-based simulation provides a platform for designing and analyzing the performance of these systems, making it a valuable tool for researchers and engineers in the field of electrical power systems. Overall, this project offers a comprehensive solution to the challenges faced by industries in ensuring a high-quality power supply, ultimately leading to improved efficiency and cost savings.

Application Area for Academics

The proposed project on designing and simulating an advanced dynamic voltage restorer for harmonic elimination in power systems offers a valuable opportunity for MTech and PhD students to engage in innovative research methods, simulations, and data analysis for their dissertation, thesis, or research papers. The relevance of this project lies in addressing the critical issue of voltage sag and power quality problems in power systems, which can significantly impact the functioning of utility equipment and overall system performance. By focusing on the development of a voltage source inverter based dynamic voltage restorer connected to a three-phase transmission line, this research project aims to mitigate voltage variations and improve power quality by injecting three-phase voltage into the transmission line. Through MATLAB-based simulations, students can design traditional DVR systems and explore the effectiveness of an upgraded Interline DVR system in eliminating voltage sag issues. This project falls under the categories of Electrical Power Systems and MATLAB-Based Projects, providing a niche area for researchers to explore and contribute to the advancement of power system technologies.

MTech students and PhD scholars can utilize the code and literature of this project to enhance their understanding of power quality issues and develop new methodologies for addressing these challenges. The future scope of this project includes further optimization of the Interline DVR system and exploring its application in real-world power systems for improved performance and reliability.

Keywords

power systems, voltage sag, power quality, utility equipment, dynamic voltage restorers, harmonic elimination, voltage source inverter, three-phase transmission line, MATLAB simulation, Interline DVR systems, comparative analysis, Electrical Power Systems, MATLAB Based Projects, M.Tech Thesis, PhD Thesis, research work, Basic Matlab, MATLAB Simulink