Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 3
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

An analytical expression for the standard deviation of Total Harmonic Distortion (THD) estimation is derived. It applies to the case where the estimator uses sine fitting. It is shown that, in common circumstances, it is inversely proportional to the actual value of THD, the signal-to-noise ratio and the square root of the number of samples. The proposed expression is validated both with numerical simulations and an experimental setup using a Monte Carlo procedure.

Go to article

Authors and Affiliations

Francisco C. Alegria
Download PDF Download RIS Download Bibtex

Abstract

The electrical grid integration takes great attention because of the increasing population in the nonlinear load connected to the power distribution system. This manuscript deals with the power quality issues and mitigations associated with the electrical grid. The proposed single comprehensive artificial neural network (SCANN) controller with unified power quality conditioner (UPQC) is modelled in MATLAB Simulink environment. It provides series and shunt compensation that helps mitigate voltage and current distortion at the end of the distribution system. Initially, four proportional integral (PI) controllers are used to control the UPQC. Later the trained SCANN controller replaces four PI Controllers for better control action. PI and SCANN controllers’ simulation results are compared to find the optimal solutions. A prototype model of SCANN controller is constructed and tested. The test results show that the SCANN based UPQC maintains grid voltage and current magnitude within permissible limits under fluctuating conditions.
Go to article

Authors and Affiliations

Varadharajan Balaji
1
Subramanian Chitra
2

  1. Department of Electrical and Electronics Engineering, Kumaraguru College of Technology, Coimbatore, Tamilnadu – 641049, India and Research Scholar (Electrical), Anna University, Chennai, Tamilnadu, India
  2. Department of Electrical and Electronics Engineering, Government College of Technology, Coimbatore, Tamilnadu – 641049, India
Download PDF Download RIS Download Bibtex

Abstract

In order to ensure that all the connected Equipment in the distribution network operates smoothly, the voltage stability of photovoltaic (PV) integrated distribution systems is very important. Sustaining the voltage profile when integrating PV is a particularly difficult issue. The primary goal of this article is to provide a consistent voltage profile to a sensitive load. A three-phase PV integrated distribution system has been chosen for investigation. An innovative feature of this system is that UPQC DVR and STATCOM systems are powered by Z-source inverters instead of traditional inverters. The ability to actively decouple power is the primary benefit of utilizing a Z-source inverter. The objective of the study effort is to use this new UPQC to synchronize a solar PV system with the distribution system. For the UPQC with battery energy storage system (BESS), the research study examines and develops the most appropriate control approach. A UPQC is a device that is used to integrate solar panels and improve the voltage stability of the distribution system. The prototype model is being developed, and the experimental findings confirm the main objective.
Go to article

Authors and Affiliations

A. Raja
1
M. Vijayakumar
2
C. Karthikeyan
3

  1. Electrical and Electronics Engineering Department, SSM College of Engineering, Kumarapalayam, Namakkal – 638 183, Tamilnadu, India
  2. Electrical and Electronics Engineering Department, K.S.R. College of Engineering, Tiruchengode, Namakkal-637 215, Tamilnadu, India
  3. Electrical Department, Tamil Nadu Generation and Distribution Corporation Ltd., Erode – 638009, Tamilnadu, India

This page uses 'cookies'. Learn more