Power Quality Problems

Published by CEA Technologies Inc. (CEATI), POWER QUALITY Energy Efficiency Reference Guide, Chapter 3 – Power Quality Problems. 3.1 How Power Quality Problems Develop Three elements are needed to produce a problematic power line disturbance: A source A coupling channel A receptor If a receptor that is adversely affected by a power line deviation isContinue reading “Power Quality Problems”

Power Quality Measurements and Analysis for Wind Turbines

Published by Mariano Sanz, Member, IEEE, Andrés Llombart, Member, IEEE, Ángel Antonio Bayod and Joaquín Mur, Student Member, IEEE Abstract— A new system for studying power quality (PQ) in wind turbines (WT) has been designed using a data acquisition board (DAQ), LabVIEW programming software and a portable PC. The system has been installed at windContinue reading “Power Quality Measurements and Analysis for Wind Turbines”

Substation Voltage Flicker Data Analysis

Published by Electrotek Concepts, Inc., PQSoft Case Study: Substation Voltage Flicker Data Analysis, Document ID: PQS1208, Date: June 4, 2012. Abstract: This case study presents a substation arc furnace flicker measurement data evaluation. The characteristics of voltage flicker are mainly determined by load characteristics and the short-circuit capacity. The analysis included a helpful index forContinue reading “Substation Voltage Flicker Data Analysis”

Understanding Power Quality Concepts

Published by CEA Technologies Inc. (CEATI), POWER QUALITY Energy Efficiency Reference Guide, Chapter 2 – Understanding Power Quality Concepts. 2.1 The Electrical Distribution System One of the keys to understanding power quality is to understand how electrical power arrives at the socket, and why distribution is such a critical issue. Electrical power is derived fromContinue reading “Understanding Power Quality Concepts”

Voltage Notching and Distribution Systems II – Large DC Drive Examples

Published by Electrotek Concepts, Inc., PQSoft Case Study: Voltage Notching and Distribution Systems II – Large DC Drive Examples, Document ID: PQS0506, Date: June 30, 2005. Abstract: This case study describes voltage notching associated with large DC drives. The notching is a normal characteristic of a phase-controlled rectifier but this paper illustrates problems that can occurContinue reading “Voltage Notching and Distribution Systems II – Large DC Drive Examples”

The Scope of Power Quality

Published by CEA Technologies Inc. (CEATI), POWER QUALITY Energy Efficiency Reference Guide, Chapter 1 – The Scope of Power Quality. 1.1 Definition of Power Quality The Institute of Electrical and Electronic Engineers (IEEE) defines power quality as: “The concept of powering and grounding electronic equipment in a manner that is suitable to the operation ofContinue reading “The Scope of Power Quality”

Voltage Notching and Distribution Systems – Large Induction Motor Drive

Published by Electrotek Concepts, Inc., PQSoft Case Study: Voltage Notching and Distribution Systems – Large Induction Motor Drive, Document ID: PQS0320, Date: July 18, 2003. Abstract: This case describes voltage notching associated with large adjustable speed drives. The notching is a normal characteristic of a phase-controlled rectifier but this paper illustrates problems that can occur onContinue reading “Voltage Notching and Distribution Systems – Large Induction Motor Drive”

Power Quality Standards

Published by Pacific Gas and Electric Company (PG&E) IEEE Standard 141-1993, Recommended Practice for Electric Power Distribution for Industrial Plants, aka the Red Book. A thorough analysis of basic electrical-system considerations is presented. Guidance is provided in design, construction, and continuity of an overall system to achieve safety of life and preservation of property; reliability; simplicityContinue reading “Power Quality Standards”

Power Quality Issues in Solar Converters: A Review

Published by J. R. Maglin & R. Ramesh, Department of Electrical and Electronics Engineering, Anna University, Chennai-25, India, E-mail: rramesh@annauniv.edu, Tel: +91-9444217600Published in European Journal of Scientific ResearchISSN 1450-216X Vol.61 No.2 (2011), pp. 321-327http://www.eurojournals.com/ejsr.htm Abstract The main objective of this paper is to identify the problems associated with solar converters in the solar power systemContinue reading “Power Quality Issues in Solar Converters: A Review”

High Neutral-to-Ground Voltages

Published by Electrotek Concepts, Inc., PQSoft Case Study: PQ Investigation at a Battery Facility, Document ID: PQS0401, Date: March 30, 2004. Abstract: An office complex was experiencing continual operational problems with some of their electronic equipment not protected by power conditioning equipment. The equipment would periodically exhibit strange behavior. An infrared heat detector was used toContinue reading “High Neutral-to-Ground Voltages”