International Research Journal of Engineering and Technology (IRJET) Volume: 11 Issue: 01 | Jan 2024
www.irjet.net
e-ISSN: 2395-0056 p-ISSN: 2395-0072
A Review on Improved Secondary Distribution Network for Power Quality in Grid Integration of Small-Scale Photovoltaic System Waseem Ahmed Halwegar1,2, Naveen Kumar J. R.2*, Altaf Mudhol3 1 Assistant Professor & HOD, Department of Electronics and Communication Engineering, Anjuman Institute of
Technology and Management, Bhatkal, Karnataka, India.
2 Professor & HOD, Department of Electronics and Communication Engineering, Institute of Engineering and
Technology, Srinivas University. Mangalore, India
3 Professor & HOD, Department of Electrical Engineering, Bharat-Ratna Indira Gandhi College of Engineering, Solapur,
India -------------------------------------------------------------------***------------------------------------------------------------
ABSTRACT
The grid integration of small-scale photovoltaic systems involves connecting the distributed energy resources to the electricity grid. To design an improved secondary distribution network for enhanced power quality in the integrated grid of small-scale photovoltaic systems, it is imperative to address various technical challenges. Hence, this review paper presents a comprehensive overview of the recent developments in various power quality improvement methods for power quality enhancement in grid integration, focusing on PI-Based Reactive Power Control Systems, Flicker Logistic Control Methods, Automated Filtering Mechanisms, Shunt Active Power Filter modules, Integrated Optimization-based AI Technique and Grid Synchronization Techniques. The review explores the benefits and drawbacks of each technique, providing an in-depth understanding of their respective contributions to improving power quality. Also, it provides a comparative analysis to demonstrate the effectiveness of various techniques for enhancing power quality. The review systematically evaluates how each method addresses challenges such as voltage fluctuations, harmonics, and flicker, thereby contributing to a more stable and reliable power supply. The review also highlights the future research directions and challenges in implementing various techniques for enhancing power quality in grid integration of small-scale photovoltaic systems and provides some suggestions for further improvements to be done in the future for better power quality in grid integration of small-scale photovoltaic system Keywords: Logistic Control Methods, Reactive Power Control, Grid Synchronization, small-scale photovoltaic system, Shunt Active Power Filter
1. INTRODUCTION Because of the depletion of fossil fuels and the need to reduce their negative impact on the environment, the use of renewable energy is constantly evolving today. Photovoltaic energy generation is becoming more popular in both urban and rural areas due to its low cost, low noise, and easy availability. Microgrids are commonly used to distribute electrical energy in rural communities [1]. There are two types of microgrids: standalone and gridconnected. The solar power plant is disconnected from the grid in standalone photovoltaic microgrids. In this case, the plant is designed for a low voltage distribution network and is subject to voltage imbalance as load imbalance increases, which can be dangerous for some equipment such as 3-phase motors [2]. Furthermore, due to bad weather conditions, a standalone PV system cannot supply load at night and at times during the day; thus, an energy storage system is typically used to stabilize the level of produced energy [3]. When power converters are used, harmonics are introduced into the system. In contrast, the increased use of sensitive electronic circuits in industries and households, as well as privatization and rivalry in electric energy systems, pose power quality improvement as one of the key problems in the electrical industry. Harmonics cause source voltage distortion and addition loss due to unwanted current flowing in the source. It may also lead to the malfunctioning of relays, mains, and other control units. As a result, it is necessary to reduce the harmonics. There are numerous techniques for reducing the effect of harmonics [4, 5]. One of these methods is to use SAPF, which generates a harmonic current of
© 2024, IRJET
|
Impact Factor value: 8.226
|
ISO 9001:2008 Certified Journal
|
Page 249