ABSTRACT Distribution network operators face increasing challenges related to Power Quality (PQ). EDP Distribuição in Portugal has developed a comprehensive PQ monitoring program to address these challenges. This paper outlines the state-of-the-art PQ monitoring platform and methodology used by EDP, and presents results from monitoring HV/MV and MV/LV substations. Improvement actions...
Energy Efficiency and static var generator Energy Efficiency and Static Var Generator (SVG) are closely linked, as SVGs play a crucial role in improving the overall energy efficiency of electrical systems. Here’s how they are connected: 1. Power Factor Improvement: Static Var Generator SVG helps in maintaining a high power factor by providing reactive power compensation. A higher power facto...
Introduction Power quality is a general term used to describe the compatibility between connected equipment and its electrical supply. The supply system can be affected by changes to the frequency or amplitude of the voltage, the balance between phases on a three-phase system, and distortion levels of the original signals. The characteristics that are important and what can be tolerated by the con...
Harmonic Distortion Optimize Power with Active Harmonic Filters Introduction to Non-Linear Loads and Harmonic Distortion Non-linear loads, particularly in industrial and commercial settings, are significant contributors to electrical power quality issues. A prime example of a non-linear load is the Switch-Mode Power Supply (SMPS), which is prevalent in most digital electronic equipme...
Reactive Power Compensation and Overcompensation Reactive Power Compensation and Over compensation are closely related concepts in power systems management, particularly in the context of maintaining an optimal power factor and ensuring the efficient operation of electrical networks. Reactive Power Compensation Reactive Power is the component of electrical power that oscillates between the source ...
Abstract Harmonic distortion in power systems is a critical challenge that electrical engineers face, especially in today's complex and technology-driven environments. The proliferation of non-linear loads—such as variable frequency drives, power electronic converters, and uninterruptible power supplies (UPS)—has led to an increase in harmonic distortions that degrade the quality of po...
Managing Non-Linear Load Harmonics with Active Power Filters Introduction Non-linear loads are becoming a significant challenge in today’s electrical systems. These loads cause the current to be non-sinusoidal, even when connected to a sinusoidal voltage source. This non-sinusoidal current contains harmonic currents that interact with the power distribution system, leading to v...
What are Even and Odd order Harmonics? Even and Odd Order Harmonics refer to the classification of harmonics in an electrical system based on their frequency in relation to the fundamental frequency. Understanding the distinction between even and odd harmonics is important for analyzing and mitigating power quality issues. 1. Harmonics Overview: Fundamental Frequency: The base frequency of th...
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